Exhibit 4.2

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                              VANSTAR CORPORATION,

                                    AS ISSUER

                                       TO

                            WILMINGTON TRUST COMPANY,
                                   AS TRUSTEE

     ---------------------------------------------------------------------
                                    INDENTURE

                           DATED AS OF OCTOBER 2, 1996

     ---------------------------------------------------------------------
                                  $180,412,350

                  (SUBJECT TO INCREASE TO UP TO $207,474,200 IN
                THE EVENT AN OVER-ALLOTMENT OPTION IS EXERCISED)
               6 3/4% CONVERTIBLE SUBORDINATED DEBENTURES DUE 2016
     ---------------------------------------------------------------------








                               VANSTAR CORPORATION

                 CERTAIN  SECTIONS OF THIS  INDENTURE  RELATING TO SECTIONS  310
          THROUGH 318 OF THE TRUST INDENTURE ACT OF 1939:
TRUST INDENTURE ACT SECTION                                    INDENTURE SECTION
 Section 310. . . . . . . . . . .. . . . . . . . . . . . . . .(a) (1) 609
     (a) (2) . . . . . . . . . . . . . . . . . . . . . . . . . . .609
     (a) (3) . . . . . . . . . . . . . . . . . . . . . Not Applicable
     (b) . . . . . . . . . . . . . . . . . . . . . . . . . . 608, 610 
Section 311. . . . . . . . . . . . . . . . . . . . . . . . . . . .(a) 613
     (b) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .613 
Section 312. . . . . . . . . . . . .. . . . . . . . . . . . . . .(a) 701, 702(a)
     (b) . . . . . . . . . . . . . . . . . . . . . . . . . . . 702(b)
     (c) . . . . . . . . . . . . . . . . . . . . . . . . . . . 702(c) 
Section 313. . . . . . . . . . . . . . . . . . . . . . . . . . . .(a) 703(a)
     (a) (4) . . . . . . . . . . . . . . . . . . . . . . . . . . .101
     (b) . . . . . . . . . . . . . . . . . . . . . . . . . . . 703(a)
     (c) . . . . . . . . . . . . . . . . . . . . . . . . . . . 703(a)
     (d) . . . . . . . . . . . . . . . . . . . . . . . . . . . 703(b) 
Section 314. . . . . . . . . . . . . . . . . . . . . . . . . . . .(a) 704
     (b) . . . . . . . . . . . . . . . . . . . . . . . Not Applicable
     (c) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102
     (d) . . . . . . . . . . . . . . . . . . . . . . . Not Applicable
     (e) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102 
Section 315. . . . . . . . . . . . .. . . . . . . . . . . . . . .(a) 601
     (b) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .602
     (c) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .601
     (d) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .601
     (e) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .514 
Section 316. . . . . . . . . . . . . . . . . . . . . . . . . . . .(a) 101
     (a) (1) (A) . . . . . . . . . . . . . . . . . . . . . . 502, 512
     (a) (1) (B) . . . . . . . . . . . . . . . . . . . . . . . . .513
     (a) (2) . . . . . . . . . . . . . . . . . . . . . Not Applicable
     (b) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .508
     (c) . . . . . . . . . . . . . . . . . . . . . . . . . . . 104(c) 
Section 317. . . . . . . . . . . . . . . . . . . . . . . . . .(a) (1) 503, 504
     (a) (2) . . . . . . . . . . . . . . . . . . . . . . . . . . .504
                                     -i-









     (b) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .402, 1003 
Section 318. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .(a) 107

- --------------  
Note: This  reconciliation and tie shall not, for any purpose, be deemed to be a
part of the Indenture.






                                       -ii-










                                TABLE OF CONTENTS
                                                                            PAGE
                                                                            ----
 RECITALS OF THE COMPANY. . . . . . . . . . . . . . . . . . . . . . . . . .  . 1
ARTICLE ONE - Definitions and Other Provisions of General Application. . . . . 2
     SECTION 101.  Definitions . . . . . . . . . . . . . . . . . . . . . . . . 2
     SECTION 102.  Compliance Certificates and Opinions. . . . . . . . . . . .10
     SECTION 103.  Form of Documents Delivered to Trustee. . . . . . . . . . .10
     SECTION 104.  Acts of Holders; Record Dates . . . . . . . . . . . . . . .11
     SECTION 105.  Notices, Etc., to Trustee and the Company . . . . . . . . .12
     SECTION 106.  Notice to Holders; Waiver . . . . . . . . . . . . . . . . .12
     SECTION 107.  Conflict with Trust Indenture Act . . . . . . . . . . . . .13
     SECTION 108.  Effect of Headings and Table of Contents. . . . . . . . . .13
     SECTION 109.  Successors and Assigns. . . . . . . . . . . . . . . . . . .13
     SECTION 110.  Separability Clause . . . . . . . . . . . . . . . . . . . .13
     SECTION 111.  Benefits of Indenture . . . . . . . . . . . . . . . . . . .13
     SECTION 112.  Governing Law . . . . . . . . . . . . . . . . . . . . . . .13
     SECTION 113.  Legal Holidays. . . . . . . . . . . . . . . . . . . . . . .14
ARTICLE TWO - Security Forms . . . . . . . . . . . . . . . . . . . . . . . . .14
     SECTION 201.  Forms Generally . . . . . . . . . . . . . . . . . . . . . .14
     SECTION 202.  Initial Issuance to Property Trustee. . . . . . . . . . . .14
ARTICLE THREE - The Securities . . . . . . . . . . . . . . . . . . . . . . . .16
     SECTION 301.  Title and Terms . . . . . . . . . . . . . . . . . . . . . .16
     SECTION 302.  Denominations . . . . . . . . . . . . . . . . . . . . . . .17
     SECTION 303.  Execution, Authentication, Delivery and Date. . . . . . . .17
     SECTION 304.  Temporary Securities. . . . . . . . . . . . . . . . . . . .18
     SECTION 305.  Registration, Registration of Transfer and Exchange . . . .18
     SECTION 306.  Mutilated, Destroyed, Lost and Stolen Securities. . . . . .19
     SECTION 307.  Payment of Interest; Interest Rights Preserved. . . . . . .20
     SECTION 308.  Persons Deemed Owners . . . . . . . . . . . . . . . . . . .21
     SECTION 309.  Cancellation. . . . . . . . . . . . . . . . . . . . . . . .22
     SECTION 310.  Right of Set Off. . . . . . . . . . . . . . . . . . . . . .22
     SECTION 311.  CUSIP Numbers . . . . . . . . . . . . . . . . . . . . . . .22
     SECTION 312.  Option to Extend Interest Payment Period. . . . . . . . . .22
     SECTION 313.  Paying Agent, Security Registrar and Conversion Agent . . .24
     SECTION 314.  Global Security . . . . . . . . . . . . . . . . . . . . . .24

                                       -i-









                                TABLE OF CONTENTS
                                   (CONTINUED)

                                                                            PAGE
                                                                            ----
ARTICLE FOUR - Satisfaction and Discharge. . . . . . . . . . . . . . . . . . .25
     SECTION 401.  Satisfaction and Discharge of Indenture . . . . . . . . . .25
     SECTION 402.  Application of Trust Money. . . . . . . . . . . . . . . . .26
ARTICLE FIVE - Remedies. . . . . . . . . . . . . . . . . . . . . . . . . . . .26
     SECTION 501.  Events of Default . . . . . . . . . . . . . . . . . . . . .26
     SECTION 502.  Acceleration of Maturity; Rescission and Annulment. . . . .28
     SECTION 503.  Collection of Indebtedness and Suits for Enforcement by
                   Trustee . . . . . . . . . . . . . . . . . . . . . . . . . .29
     SECTION 504.  Trustee May File Proofs of Claim. . . . . . . . . . . . . .29
     SECTION 505.  Trustee May Enforce Claims Without Possession of
                   Securities. . . . . . . . . . . . . . . . . . . . . . . . .30
     SECTION 506.  Application of Money Collected. . . . . . . . . . . . . . .30
     SECTION 507.  Limitation on Suits . . . . . . . . . . . . . . . . . . . .30
     SECTION 508.  Unconditional Right of Holders to Receive Principal and
                   Interest and Convert. . . . . . . . . . . . . . . . . . . .31
     SECTION 509.  Restoration of Rights and Remedies. . . . . . . . . . . . .31
     SECTION 510.  Rights and Remedies Cumulative. . . . . . . . . . . . . . .31
     SECTION 511.  Delay or Omission Not Waiver. . . . . . . . . . . . . . . .32
     SECTION 512.  Control by Holders. . . . . . . . . . . . . . . . . . . . .32
     SECTION 513.  Waiver of Past Defaults . . . . . . . . . . . . . . . . . .32
     SECTION 514.  Undertaking for Costs . . . . . . . . . . . . . . . . . . .33
     SECTION 515.  Waiver of Stay or Extension Laws. . . . . . . . . . . . . .33
     SECTION 516.  Enforcement by Holders of Preferred Securities. . . . . . .33
ARTICLE SIX - The Trustee. . . . . . . . . . . . . . . . . . . . . . . . . . .34
     SECTION 601.  Certain Duties and Responsibilities . . . . . . . . . . . .34
     SECTION 602.  Notice of Defaults. . . . . . . . . . . . . . . . . . . . .34
     SECTION 603.  Certain Rights of Trustee . . . . . . . . . . . . . . . . .34
     SECTION 604.  Not Responsible for Recitals or Issuance of Securities. . .35
     SECTION 605.  May Hold Securities . . . . . . . . . . . . . . . . . . . .35
     SECTION 606.  Money Held in Trust . . . . . . . . . . . . . . . . . . . .35
     SECTION 607.  Compensation and Reimbursement. . . . . . . . . . . . . . .36
     SECTION 608.  Disqualification; Conflicting Interests . . . . . . . . . .36
     SECTION 609.  Corporate Trustee Required; Eligibility . . . . . . . . . .36
     SECTION 610.  Resignation and Removal; Appointment of Successor . . . . .37
     SECTION 611.  Acceptance of Appointment by Successor. . . . . . . . . . .38
     SECTION 612.  Merger, Conversion, Consolidation or Succession to
                   Business. . . . . . . . . . . . . . . . . . . . . . . . . .38
     SECTION 613.  Preferential Collection of Claims Against Company . . . . .39

                                       -ii-









                                TABLE OF CONTENTS
                                   (CONTINUED)

                                                                            PAGE
                                                                            ----
ARTICLE SEVEN - Holders' Lists and Reports by Trustee and Company. . . . . . .39
     SECTION 701.  Company to Furnish Trustee Names and Addressees of Holders.39
     SECTION 702.  Preservation of Information; Communications to Holders. . .39
     SECTION 703.  Reports by Trustee. . . . . . . . . . . . . . . . . . . . .40
     SECTION 704.  Reports by Company. . . . . . . . . . . . . . . . . . . . .40
ARTICLE EIGHT - Consolidation, Merger, Conveyance, Transfer or Lease . . . . .40
     SECTION 801.  Company May Consolidate, Etc., Only on Certain Terms. . . .40
     SECTION 802.  Successor Substituted . . . . . . . . . . . . . . . . . . .41
ARTICLE NINE - Supplemental Indentures . . . . . . . . . . . . . . . . . . . .42
     SECTION 901.  Supplemental Indentures without Consent of Holders. . . . .42
     SECTION 902.  Supplemental Indentures with Consent of Holders . . . . . .42
     SECTION 903.  Execution of Supplemental Indentures. . . . . . . . . . . .44
     SECTION 904.  Effect of Supplemental Indentures . . . . . . . . . . . . .44
     SECTION 905.  Conformity with Trust Indenture Act . . . . . . . . . . . .44
     SECTION 906.  Reference in Securities to Supplemental Indentures. . . . .44
ARTICLE TEN - Covenants; Representations and Warranties. . . . . . . . . . . .44
     SECTION 1001.  Payment of Principal and Interest. . . . . . . . . . . . .44
     SECTION 1002.  Maintenance of Office or Agency. . . . . . . . . . . . . .45
     SECTION 1003.  Money for Security Payments to Be Held in Trust. . . . . .45
     SECTION 1004.  Statement by Officers as to Default. . . . . . . . . . . .46
     SECTION 1005.  Limitation on Dividends; Transactions with Affiliates;
                    Covenants as to the Trust. . . . . . . . . . . . . . . . .46
     SECTION 1006.  Payment of Expenses of the Trust . . . . . . . . . . . . .47
     SECTION 1007.  Registration Rights. . . . . . . . . . . . . . . . . . . .48
     SECTION 1008.  Rule 144A Information Requirement. . . . . . . . . . . . .48
     SECTION 1009.  Listing the Securities . . . . . . . . . . . . . . . . . .48
ARTICLE ELEVEN - Redemption of Securities. . . . . . . . . . . . . . . . . . .49
     SECTION 1101.  Right of Redemption. . . . . . . . . . . . . . . . . . . .49
     SECTION 1102.  Applicability of Article . . . . . . . . . . . . . . . . .49
     SECTION 1103.  Election to Redeem; Notice to Trustee. . . . . . . . . . .49
     SECTION 1104.  Selection by Trustee of Securities to Be Redeemed. . . . .50
     SECTION 1105.  Notice of Redemption . . . . . . . . . . . . . . . . . . .50
     SECTION 1106.  Deposit of Redemption Price. . . . . . . . . . . . . . . .51
     SECTION 1107.  Securities Payable on Redemption Date. . . . . . . . . . .51
     SECTION 1108.  Securities Redeemed in Part. . . . . . . . . . . . . . . .51

                                       -iii-









                                TABLE OF CONTENTS
                                   (CONTINUED)

                                                                            PAGE
                                                                            ----
     SECTION 1109.  Optional Redemption. . . . . . . . . . . . . . . . . . . .52
     SECTION 1110.  Tax Event Redemption . . . . . . . . . . . . . . . . . . .53
     SECTION 1111.  No Sinking Fund. . . . . . . . . . . . . . . . . . . . . .53
ARTICLE TWELVE - Subordination of Securities . . . . . . . . . . . . . . . . .53
     SECTION 1201.  Agreement to Subordinate . . . . . . . . . . . . . . . . .53
     SECTION 1202.  Default on Senior Indebtedness . . . . . . . . . . . . . .54
     SECTION 1203.  Liquidation; Dissolution; Bankruptcy . . . . . . . . . . .54
     SECTION 1204.  Subrogation. . . . . . . . . . . . . . . . . . . . . . . .55
     SECTION 1205.  Trustee to Effectuate Subordination. . . . . . . . . . . .56
     SECTION 1206.  Notice by the Company. . . . . . . . . . . . . . . . . . .56
     SECTION 1207.  Rights of the Trustee; Holders of Senior Indebtedness. . .57
     SECTION 1208.  Subordination May Not Be Impaired. . . . . . . . . . . . .58
     SECTION 1209.  Certain Conversions Deemed Payment . . . . . . . . . . . .58
     SECTION 1210.  Article Applicable to Paying Agents. . . . . . . . . . . .59
ARTICLE THIRTEEN - Conversion of Securities. . . . . . . . . . . . . . . . . .59
     SECTION 1301.  Conversion Rights. . . . . . . . . . . . . . . . . . . . .59
     SECTION 1302.  Conversion Procedures. . . . . . . . . . . . . . . . . . .59
     SECTION 1303.  Conversion Price Adjustments . . . . . . . . . . . . . . .61
     SECTION 1304.  Fundamental Change . . . . . . . . . . . . . . . . . . . .65
     SECTION 1305.  Notice of Adjustments of Conversion Price. . . . . . . . .67
     SECTION 1306.  Prior Notice of Certain Events . . . . . . . . . . . . . .68
     SECTION 1307.  Certain Defined Terms. . . . . . . . . . . . . . . . . . .68
     SECTION 1308.  Dividend or Interest Reinvestment Plans. . . . . . . . . .70
     SECTION 1309.  Certain Additional Rights. . . . . . . . . . . . . . . . .70
     SECTION 1310.  Restrictions on Common Stock Issuable Upon Conversion. . .71
     SECTION 1311.  Trustee Not Responsible for Determining Conversion Price
                    or Adjustments . . . . . . . . . . . . . . . . . . . . . .71
ARTICLE FOURTEEN - Miscellaneous . . . . . . . . . . . . . . . . . . . . . . .72
     SECTION 1401.  No Recourse; Immunity of Incorporators, Stockholders,
                    Officers and Directors . . . . . . . . . . . . . . . . . .72

                                       -iv-









     INDENTURE,  dated as of October 2, 1996,  between  Vanstar  Corporation,  a
corporation  duly organized and existing under the laws of the State of Delaware
(herein  called the  "Company"),  having its  principal  office at 5964 West Las
Positas,  Pleasanton,  California  94588-9012,  and Wilmington Trust Company,  a
Delaware banking corporation, as Trustee (herein called the "Trustee").

                             RECITALS OF THE COMPANY

     WHEREAS,  Vanstar Financing Trust, a Delaware business trust (the "Trust"),
formed under the Amended and Restated Declaration of Trust among the Company, as
sponsor, Wilmington Trust Company, as property trustee (the "Property Trustee"),
Wilmington Trust Company,  as Delaware trustee (the "Delaware Trustee") and John
R. Dunican, Jr., as regular trustee (the "Regular Trustee"), dated as of October
2, 1996 (the  "Declaration"),  pursuant to the Purchase Agreement (the "Purchase
Agreement"),  dated  September  26, 1996,  among the Company,  the Trust and the
Initial  Purchasers  named  therein,  will  issue and sell up to  3,500,000  (or
4,025,000  if the  over-allotment  option  is  exercised)  of  its 6 3/4%  Trust
Convertible Preferred Securities (the "Preferred Securities") with a liquidation
amount of $50 per Preferred Security having an aggregate liquidation amount with
respect to the assets of the Trust of $175,000,000 (or $201,250,000 if the over-
allotment option is exercised);

     WHEREAS,  the Regular  Trustees of the Trust, on behalf of the Trust,  will
execute  and  deliver to the  Company or one of  Company's  subsidiaries  Common
Securities evidencing an ownership interest in the Trust, registered in the name
of the Company or one of Company's subsidiaries, in an aggregate amount equal to
three percent of the  capitalization of the Trust,  equivalent to 108,247 Common
Securities  (or  124,484  Common  Securities  if the  over-allotment  option  is
exercised),  with a  liquidation  amount of $50 per Common  Security,  having an
aggregate  liquidation  amount  with  respect  to the  assets  of the  Trust  of
$5,412,350  (or  $6,224,200  if the  over-allotment  option is  exercised)  (the
"Common  Securities"),  pursuant to the Purchase Agreement of Common Securities,
dated as of October 2, 1996, between the Trust and the Company;
     WHEREAS,  the Trust will use the  proceeds  from the sale of the  Preferred
Securities and the Common Securities to purchase from the Company the Securities
(as  defined  below)  in an  aggregate  principal  amount  of  $180,412,350  (or
$207,474,200 if the over-allotment option is exercised);

     WHEREAS,  the Company is guaranteeing  the payment of  distributions on the
Preferred  Securities,  and  payment of the  Redemption  Price and  payments  on
liquidation with respect to the Preferred Securities,  to the extent provided in
the Preferred  Securities  Guarantee  Agreement  (the  "Guarantee")  between the
Company and Wilmington Trust Company,  as guarantee trustee,  for the benefit of
the holders of the Preferred Securities from time to time;

     WHEREAS, the Company has duly authorized the creation of an issue of 6 3/4%
Convertible   Subordinated   Debentures   due  2016   (the   "Securities"),   of
substantially the tenor and amount hereinafter set forth and to provide therefor
the Company has duly  authorized  the execution and delivery of this  Indenture;
and









     WHEREAS, so long as the Trust is a Holder of Securities,  and any Preferred
Securities  are  outstanding,  the  Declaration  provides  that the  holders  of
Preferred  Securities  may  cause  the  Conversion  Agent to (a)  exchange  such
Preferred  Securities  for  Securities  held by the  Trust  and (b)  immediately
convert such Securities into Common Stock;

     WHEREAS all things  necessary to make the Securities,  when executed by the
Company  and  authenticated  and  delivered  hereunder  and duly  issued  by the
Company,  the valid  obligations  of the Company,  and to make this  Indenture a
valid  agreement of the Company,  in accordance  with their and its terms,  have
been done.

     NOW, THEREFORE, THIS INDENTURE WITNESSETH:

     For and in consideration of the premises and the purchase of the Securities
by the Holders thereof,  it is mutually agreed,  for the equal and proportionate
benefit of all Holders of the Securities, as follows:


                                   ARTICLE ONE

                        Definitions and Other Provisions
                             of General Application

SECTION 101.  DEFINITIONS.

     For all purposes of this Indenture,  except as otherwise expressly provided
or unless the context otherwise requires:

     (1) the terms defined in this Article have the meanings assigned to them in
this Article and include the plural as well as the singular;

     (2) all other  terms used herein  which are defined in the Trust  Indenture
Act, either directly or by reference therein, have the meanings assigned to them
therein;

     (3) all  accounting  terms not otherwise  defined  herein have the meanings
assigned to them in accordance with generally accepted accounting  principles as
of the relevant date; and

     (4)  except as  otherwise  indicated,  the  words  "herein",  "hereof"  and
"hereunder" and other words of similar import refer to this Indenture as a whole
and not to any particular Article, Section or other subdivision.

     "ACT," when used with respect to any Holder,  has the meaning  specified in
Section 104(a).

     "ADDITIONAL INTEREST" has the meaning specified in Section 301.

                                       -2-









     "ADDITIONAL PAYMENTS" means Compounded Interest and Additional Interest, if
any.

     "AFFILIATE",  of any  specified  Person means any other Person  directly or
indirectly  controlling  or  controlled  by or under  direct or indirect  common
control  with  such  specified  Person.  For the  purposes  of this  definition,
"control"  when used with  respect to any  specified  Person  means the power to
direct the  management  and  policies of such  Person,  directly or  indirectly,
whether  through the ownership of voting  securities,  by contract or otherwise;
and the terms  "controlling" and "controlled"  have meanings  correlative to the
foregoing.

     "AGENT"  means  any  Registrar,  Paying  Agent,  Conversion  Agent  or  co-
registrar.

     "BOARD OF  DIRECTORS"  means the board of  directors  of the Company or any
duly authorized committee of such board.

     "BOARD RESOLUTION" means a copy of a resolution  certified by the Secretary
or an  Assistant  Secretary  of the  Company  to have been duly  adopted  by the
applicable  Board of Directors and to be in full force and effect on the date of
such certification, and delivered to the Trustee.

     "BUSINESS DAY" means any day other than a day on which banking institutions
in New York, New York, San Francisco,  California or in Wilmington, Delaware are
authorized or required by law to close.

     "CLOSING PRICE" has the meaning specified in Section 1307(b).

     "COMMISSION" means the Securities and Exchange Commission,  as from time to
time  constituted,  created under the Exchange Act, or, if at any time after the
execution of this  instrument such Commission is not existing and performing the
duties  now  assigned  to it  under  the  Trust  Indenture  Act,  then  the body
performing such duties at such time.

     "COMMON  SECURITIES"  has the  meaning  specified  in the  recitals to this
Instrument.

     "COMMON  SECURITIES  GUARANTEE"  means any  guarantee  that the Company may
enter into that operates,  directly or indirectly, for the benefit of holders of
Common Securities of the Trust.

     "COMMON STOCK"  includes any stock of any class of the Company which has no
preference  in respect of  dividends  or of amounts  payable in the event of any
voluntary or involuntary  liquidation,  dissolution or winding up of the Company
and which is not subject to  redemption  by the  Company  pursuant to its terms.
However,  subject to the  provisions  of Article  Thirteen,  shares  issuable on
conversion  of Securities  shall include only shares of the class  designated as
Common  Stock of the  Company  at the date of this  instrument  or shares of any
class or  classes  resulting  from  any  reclassification  or  reclassifications
thereof  and which have no  preference  in respect  of  dividends  or of amounts
payable in the event of any voluntary or


                                       -3-










involuntary liquidation,  dissolution or winding up of the Company and which are
not subject to redemption by the Company pursuant to their terms; PROVIDED, that
if at any time there shall be more than one such resulting  class, the shares of
each such class then so issuable on  conversion  shall be  substantially  in the
proportion  which the total  number of shares of such class  resulting  from all
such  reclassifications  bears to the total number of shares of all such classes
resulting from all such reclassifications.

     "COMPANY" means the Person named as the "Company" in the first paragraph of
this instrument  until a successor Person shall have become such pursuant to the
applicable  provisions of this  Indenture,  and thereafter  "Company" shall mean
such successor Person.

     "COMPANY'S  REQUEST" or "COMPANY'S  ORDER" means a written request or order
delivered  to the Trustee and signed in the name of the Company by its  Chairman
of the Board, its Vice Chairman of the Board, its President or a Vice President,
and by its  Treasurer,  an Assistant  Treasurer,  its  Secretary or an Assistant
Secretary, and delivered to the Trustee.

     "COMPOUNDED INTEREST" has the meaning specified in Section 312(a) .

     "CONVERSION  AGENT"  means  the  Person  appointed  to act on behalf of the
holders of  Preferred  Securities  in  effecting  the  conversion  of  Preferred
Securities  as and in the manner set forth in the  Declaration  and Section 1302
hereof.

     "CONVERSION DATE" has the meaning specified in Section 1302(a).

     "CORPORATE  TRUST OFFICE" means the principal  office of the Trustee in the
State of Delaware,  at which at any particular time its corporate trust business
shall be  administered  and which at the date of this Indenture is Rodney Square
North, 1100 North Market Street,  Wilmington,  Delaware  19890-0001,  Attention:
Corporate Trust Administration.

     "DECLARATION" has the meaning specified in the Recitals of this instrument.

     "DEFAULTED INTEREST" has the meaning specified in Section 307.

     "DELAWARE  TRUSTEE"  has  the  meaning  given  it in the  Recitals  of this
instrument.

     "DEPOSITARY"  means,  with respect to any Securities  issued in the form of
one or more Global Security, a clearing agency registered under the Exchange Act
that is dedicated to act as Depositary for the Securities.

     "DIRECT  ACTION"  means a  proceeding  directly  instituted  by a holder of
Preferred  Securities for enforcement of payment to such holder of the principal
of or  interest  on the  Securities  having  a  principal  amount  equal  to the
aggregate  liquidation  amount of the Preferred  Securities of such holder on or
after the  respective  due date  specified in the  Securities,  if a Declaration
Event of Default has occurred and is continuing  and such event is  attributable
to the failure of the


                                       -4-










Company to pay interest or principal on the Securities on the date such interest
or  principal  is  otherwise  payable  (or in the  case  of  redemption,  on the
redemption date.)

     "DISSOLUTION  EVENT"  means  that,  as  a  result  of  the  occurrence  and
continuation of a Special Event, the Trust is to be dissolved in accordance with
the  Declaration  and the  Securities  held by the  Property  Trustee  are to be
distributed to the holders of Trust  Securities  issued by the Trust PRO RATA in
accordance with the Declaration.

     "DISSOLUTION TAX OPINION" has the meaning specified in the Declaration.

     "EFFECTIVENESS PERIOD" has the meaning specified in Section 1007.

     "EVENT OF DEFAULT" has the meaning specified in Section 501.

     "EXCHANGE ACT" means the  Securities  Exchange Act of 1934, as amended from
time to time, or any successor legislation.

     "EXPIRATION TIME" has the meaning specified in Section 1303(e).

     "EXTENSION PERIOD" has the meaning specified in Section 312(a).

     "GLOBAL SECURITY" has the meaning specified in Section 314(a)(i).

     "GUARANTEE" has the meaning specified in the Recitals to this instrument.

     "HOLDER"  means a Person in whose  name a  Security  is  registered  in the
Security Register.

     "INDENTURE" means this instrument as originally  executed or as it may from
time to time be supplemented  or amended by one or more indentures  supplemental
hereto entered into pursuant to the applicable provisions hereof, including, for
all  purposes  of this  instrument  and any  such  supplemental  indenture,  the
provisions of the Trust Indenture Act that are deemed to be a part of and govern
this instrument and any such supplemental indenture, respectively.

     "INITIAL  PURCHASERS,"  with  respect to the  Preferred  Securities,  means
Robertson,  Stephens & Company LLC, Alex. Brown & Sons  Incorporated,  Donaldson
Lufkin & Jenrette Securities Corporation and The Robinson-Humphrey Company, Inc.

     "INTEREST PAYMENT DATE" has the meaning specified in Section 301.

     "INVESTMENT COMPANY EVENT" has the meaning specified in the Declaration.

     "LIQUIDATED DAMAGES" has the meaning specified in Section 1007.

                                       -5-









     "MATURITY," when used with respect to any Security, means the date on which
the  principal  of such  Security  becomes  due and payable as therein or herein
provided, whether at the Stated Maturity or by declaration of acceleration, call
for redemption or otherwise.

     "MINISTERIAL ACTION" has the meaning specified in Section 1110.

     "90-DAY PERIOD" has the meaning specified in Section 1110.

     "NO RECOGNITION OPINION" has the meaning specified in the Declaration.

     "NON BOOK-ENTRY PREFERRED  SECURITIES" has the meaning specified in Section
314(a)(ii).

     "NOTICE  OF  CONVERSION"  means  the  notice  to be given  by a  holder  of
Preferred  Securities to the Conversion  Agent directing the Conversion Agent to
exchange such Preferred Securities for Securities and to convert such Securities
into Common Stock on behalf of such holder.

     "OFFICERS'  CERTIFICATE"  means a certificate signed by the Chairman of the
Board, the Vice Chairman of the Board, the President or a Vice President, and by
the Treasurer, an Assistant Treasurer,  the Secretary or an Assistant Secretary,
of the Company,  and  delivered to the Trustee.  One of the officers  signing an
Officers'  Certificate  given  pursuant to Section  1004 shall be the  principal
executive, financial or accounting officer of the Company.

     "OPINION  OF  COUNSEL"  means a written  opinion  of  counsel  who shall be
reasonably acceptable to the Trustee.

     "OUTSTANDING," when used with respect to Securities,  means, as of the date
of determination,  all Securities theretofore  authenticated and delivered under
this Indenture,  EXCEPT: (i) Securities  theretofore  canceled by the Trustee or
delivered to the Trustee for cancellation;  (ii) Securities for whose payment or
redemption money in the necessary amount has been theretofore deposited with the
Trustee or any Paying  Agent  (other than the Company) in trust or set aside and
segregated  in trust by the Company (if the Company shall act as Paying Agent on
its own  behalf)  for the  Holders of such  Securities;  PROVIDED,  that if such
Securities  are to be redeemed,  notice of such  redemption  has been duly given
pursuant to this Indenture or provision therefor satisfactory to the Trustee has
been made;  and (iii)  Securities  that have been paid  pursuant to Section 306,
converted  into Common Stock  pursuant to Section 1301, or in exchange for or in
lieu of which other Securities have been authenticated and delivered pursuant to
this  Indenture,  other than any such Securities in respect of which there shall
have been presented to the Trustee proof satisfactory to it that such Securities
are held by a bona fide  purchaser  in whose  hands  such  Securities  are valid
obligations of the Company; PROVIDED,  HOWEVER, that, in determining whether the
Holders of the requisite  principal  amount of the  Outstanding  Securities have
given any request, demand,  authorization,  direction, notice, consent or waiver
hereunder,  Securities  owned  by the  Company  or any  other  Company  upon the
Securities  or any  Affiliate of the Company  controlled by the Company shall be
disregarded  and deemed  not to be  outstanding,  except  that,  in  determining
whether the Trustee shall be protected in relying upon any such

                                       -6-










request,  demand,  authorization,  direction,  notice,  consent or waiver,  only
Securities  which  the  Trustee  knows to be so owned  shall be so  disregarded.
Securities  so owned  which have been  pledged in good faith may be  regarded as
outstanding if the pledgee  establishes to the  satisfaction  of the Trustee the
pledgee's  right so to act with respect to such  Securities and that the pledgee
is not the Company or any other obligor upon the  Securities or any Affiliate of
the Company controlled by the Company.

     "PAYING  AGENT"  means any  Person  authorized  by the  Company  to pay the
principal of or interest on any Securities on behalf of the Company.
     "PERSON" means any individual,  corporation,  company,  partnership,  joint
venture,  trust,  unincorporated  organization  or  government  or any agency or
political subdivision thereof.

     "PREDECESSOR  SECURITY' of any  particular  Security  means every  previous
Security  evidencing all or a portion of the same debt as that evidenced by such
particular  Security;  and,  for the purposes of this  definition,  any Security
authenticated  and  delivered  under Section 306 in exchange for or in lieu of a
mutilated,  destroyed,  lost or stolen  Security shall be deemed to evidence the
same debt as the mutilated, destroyed, lost or stolen Security.

     "PREFERRED  SECURITIES"  has the meaning  specified in the Recitals to this
instrument.

     "PREFERRED  STOCK" means the Company's  Preferred Stock, $.01 per share par
value.

     "PROPERTY  TRUSTEE"  has the  meaning  specified  in the  Recitals  of this
instrument.

     "PURCHASE  AGREEMENT"  has the meaning  specified  in the  Recitals to this
instrument.

     "PURCHASED SHARES" has the meaning specified in Section 1303 (e) .

     "REDEMPTION  DATE," when used with  respect to any Security to be redeemed,
means the date fixed for such redemption by or pursuant to this Indenture.

     "REDEMPTION  PRICE," when used with respect to any Security to be redeemed,
means the price at which it is to be redeemed pursuant to this Indenture.

     "REDEMPTION TAX OPINION" has the meaning set forth in the Declaration.

     "REFERENCE DATE" has the meaning specified in Section 1303 (c).

     "REGISTRABLE SECURITIES" has the meaning specified in Section 1007.

     "REGISTRATION DEFAULT" has the meaning specified in Section 1007.

     "REGISTRATION RIGHTS AGREEMENT" has the meaning specified in Section 1007.

                                       -7-









     "REGULAR RECORD DATE" has the meaning specified in Section 301.

     "REGULAR TRUSTEES" has the meaning specified in the Declaration.

     "RESPONSIBLE  OFFICER,"  when used with respect to the  Trustee,  means the
chairman or any  vice-chairman  of the board of  directors,  the chairman or any
vice-chairman of the executive committee of the board of directors, the chairman
of the trust committee,  the president,  any vice president,  any assistant vice
president,  the  treasurer,  any  assistant  treasurer,  any  trust  officer  or
assistant trust officer, the controller or any assistant controller or any other
officer  of the  Trustee  customarily  performing  functions  similar  to  those
performed by any of the above designated  officers and also means,  with respect
to a particular corporate trust matter, any other officer to whom such matter is
referred  because  of his  knowledge  of and  familiarity  with  the  particular
subject.

     "RESTRICTED SECURITIES LEGEND" has the meaning specified in Section 202.

     "SECURITIES" has the meaning specified in the Recitals to this instrument.

     "SECURITY  REGISTER" and "SECURITY  REGISTRAR" have the respective meanings
specified in Section 305(a).

     "SENIOR  INDEBTEDNESS"  means in respect of the Company (i) the  principal,
premium, if any, and interest in respect of (A) indebtedness of such obligor for
money borrowed and (B) indebtedness evidenced by securities,  debentures, bonds,
notes or other similar  instruments  issued by such obligor or credit facilities
with  lending  institutions  or  commercial  lenders,  (ii)  all  capital  lease
obligations  of such obligor,  (iii) all  obligations  of such obligor issued or
assumed  as the  deferred  purchase  price of  property,  all  conditional  sale
obligations of such obligor and all  obligations of such obligor under any title
retention  agreement  (but  excluding  trade  accounts  payable  arising  in the
ordinary  course of  business),  (iv) all  obligations  of such  obligor for the
reimbursement of any letter of credit,  banker's  acceptance,  security purchase
facility or similar credit  transaction,  (v) commitment or standby fees due and
payable to lending  institutions with respect to credit facilities  available to
the Company,  (vi) obligations  under interest rate and currency swaps,  floors,
caps and other arrangements intended to fix interest rate obligations; (vii) all
obligations  of the type  referred to in clauses (i) through (vi) above of other
persons  for the  payment of which  such  obligor  is  responsible  or liable as
obligor, guarantor or otherwise, and (viii) all obligations of the type referred
to in clauses (i) through  (vii) above of other  persons  secured by any lien on
any property or asset of such obligor (whether or not such obligation is assumed
by such obligor), except for (1) the Securities,  (2) any such indebtedness that
is by its terms  subordinated  to or PARI PASSU with the  Securities and (3) any
indebtedness  between or among such  obligor or its  affiliates,  including  all
other debt securities and guarantees in respect of those debt securities  issued
to any other  trust,  or a trustee of such trust,  partnership,  or other entity
affiliated with the Company that is, directly or indirectly, a financing vehicle
of the Company (a "Financing  Entity") in  connection  with the issuance by such
Financing  Entity of preferred  securities or other  securities  which rank PARI
PASSU with, or junior to, the Preferred


                                       -8-









Securities.  Such Senior  Indebtedness shall continue to be Senior  Indebtedness
and entitled to the benefits of the subordination provisions irrespective of any
amendment, modification or waiver of any term of such Senior Indebtedness.

     "SHELF REGISTRATION STATEMENT" has the meaning specified in Section 1007.

     "SIGNIFICANT  SUBSIDIARY"  has the  meaning  specified  in Rule  1-02(w) of
Regulation S-X under the Securities Act of 1933.

     "SPECIAL EVENT" has the meaning specified in the Declaration.

     "SPECIAL  RECORD DATE" for the payment of any  Defaulted  Interest  means a
date fixed by the Trustee pursuant to Section 307.

     "STATED   MATURITY,"  when  used  with  respect  to  any  Security  or  any
installment  of interest  thereon,  means the date specified in such Security as
the fixed date on which the  principal,  together  with any  accrued  and unpaid
interest (including Compounded  Interest),  of such Security or such installment
of interest is due and payable.

     "SUBSIDIARY"  of any Person  means (i) a  corporation  more than 50% of the
outstanding  Voting  Stock of which is owned,  directly or  indirectly,  by such
Person or by one or more other Subsidiaries of such Person or by such Person and
one or more  Subsidiaries  thereof  or  (ii)  any  other  Person  (other  than a
corporation)  in which such Person,  or one or more other  Subsidiaries  of such
Person or such Person and one or more other  Subsidiaries  thereof,  directly or
indirectly,  has at least a majority ownership and power to direct the policies,
management and affairs thereof.

     "TAX EVENT" has the meaning specified in the Declaration.

     "TRADING DAY" has the meaning specified in Section 1307(h).

     "TRUST" has the meaning specified in the Recitals to this instrument.

     "TRUSTEE" means the Person named as the "Trustee" in the first paragraph of
this instrument until a successor Trustee shall have become such pursuant to the
applicable provisions of this Indenture,  and thereafter  "Trustee",  shall mean
such successor Trustee.

     "TRUST  INDENTURE ACT" means the Trust Indenture Act of 1939 as in force at
the date as of which this instrument was executed;  PROVIDED,  however,  that in
the event the Trust  Indenture  Act of 1939 is amended  after such date,  "Trust
Indenture Act" means, to the extent  required by any such  amendment,  the Trust
Indenture Act of 1939 as so amended.

     "TRUST SECURITIES" means Common Securities and Preferred Securities.

                                       -9-









     "VICE  PRESIDENT,"  when used with  respect to the Company or the  Trustee,
means any vice  president,  whether or not  designated  by a number or a word or
words added before or after the title "vice president."

     "VOTING  STOCK" of any Person  means  capital  stock of such  Person  which
ordinarily has voting power for the election of directors (or Persons performing
similar  functions)  of such Person,  whether at all times or only so long as no
senior class of securities has such voting power by reason of any contingency.

SECTION 102.  COMPLIANCE CERTIFICATES AND OPINIONS.

     Upon any application or request by the Company to take any action under any
provision  of this  Indenture,  the Company  shall  furnish to the Trustee  such
certificates  and opinions as may be required  under the Trust  Indenture Act or
reasonably  requested  by the Trustee in  connection  with such  application  or
request.  Each  such  certificate  or  opinion  shall be given in the form of an
Officers,  Certificate,  if to be  given by an  officer  of the  Company,  or an
Opinion  of  Counsel,  if to be given by  counsel,  and  shall  comply  with the
applicable  requirements  of the Trust  Indenture  Act and any other  applicable
requirement set forth in this Indenture.

     Every certificate or opinion with respect to compliance with a condition or
covenant provided for in this Indenture shall include

     (1) a statement that each  individual  signing such  certificate or opinion
has read such covenant or condition and the definitions herein relating thereto;

     (2) a brief  statement  as to the  nature and scope of the  examination  or
investigation   upon  which  the  statements  or  opinions   contained  in  such
certificate or opinion are based;

     (3) a statement that, in the opinion of each such  individual,  he has made
such  examination or  investigation  as is necessary to enable him to express an
informed  opinion as to  whether  or not such  covenant  or  condition  has been
complied with; and

     (4) a statement as to whether, in the opinion of each such individual, such
condition or covenant has been complied with.

SECTION 103.  FORM OF DOCUMENTS DELIVERED TO TRUSTEE.

     In any case where  several  matters  are  required to be  certified  by, or
covered by an opinion of, any specified  Person,  it is not  necessary  that all
such  matters  be  certified  by, or covered by the  opinion  of,  only one such
Person,  or that they be so certified or covered by only one  document,  but one
such Person may certify or give an opinion  with respect to some matters and one
or more other such Persons as to other matters,  and any such Person may certify
or give an opinion as to such matters in one or several documents.

                                       -10-









     Any  certificate  or opinion of an  officer  of the  Company  may be based,
insofar as it relates to legal  matters,  upon a  certificate  or opinion of, or
representations  by,  counsel,  unless such officer knows, or in the exercise of
reasonable care should know, that the certificate or opinion or  representations
with respect to the matters upon which his  certificate  or opinion is based are
erroneous.  Any such certificate or opinion of counsel may be based,  insofar as
it  relates  to  factual   matters,   upon  a  certificate  or  opinion  of,  or
representations  by, an officer or  officers  of the  Company  stating  that the
information  with respect to such factual  matters is in the  possession  of the
Company, unless such counsel knows, or in the exercise of reasonable care should
know,  that the certificate or opinion or  representations  with respect to such
matters are erroneous.

     Where  any  Person  is  required  to  make,  give  or  execute  two or more
applications,  requests, consents,  certificates,  statements, opinions or other
instruments  under this Indenture,  they may, but need not, be consolidated  and
form one instrument.

SECTION 104.  ACTS OF HOLDERS; RECORD DATES.

     (a) Any request, demand, authorization,  direction, notice, consent, waiver
or other action  provided by this  Indenture to be given or taken by Holders may
be embodied in and evidenced by one or more instruments of substantially similar
tenor signed by such Holders in person or by an agent duly appointed in writing;
and, except as herein  otherwise  expressly  provided,  such action shall become
effective when such  instrument or instruments are delivered to the Trustee and,
where it is hereby  expressly  required,  to the  Company.  Such  instrument  or
instruments (and the action embodied  therein and evidenced  thereby) are herein
sometimes  referred to as the "Act" of the Holders  signing such  instrument  or
instruments.  Proof  of  execution  of  any  such  instrument  or  of a  writing
appointing  any such agent shall be sufficient for any purpose of this Indenture
and (subject to Section 601) conclusive in favor of the Trustee and the Company,
if made in the manner provided in this Section.

     (b) The fact and date of the execution by any Person of any such instrument
or writing may be proved by the affidavit of a witness of such execution or by a
certificate  of a notary  public  or  other  officer  authorized  by law to take
acknowledgments of deeds, certifying that the individual signing such instrument
or writing acknowledged to him the execution thereof. Where such execution is by
a  signer  acting  in a  capacity  other  than  his  individual  capacity,  such
certificate  or  affidavit  shall  also  constitute   sufficient  proof  of  his
authority. The fact and date of the execution of any such instrument or writing,
or the  authority of the Person  executing  the same,  may also be proved in any
other manner which the Trustee or the Company, as the case may be, deems or deem
sufficient.

     (c) The Company may, in the circumstances  permitted by the Trust Indenture
Act, fix any day as the record date for the purpose of  determining  the Holders
of Outstanding  Securities  entitled to give, make or take any request,  demand,
authorization, direction, notice, consent, waiver or other action, or to vote on
any action,  authorized or permitted to be given or taken by Holders. If not set
by the Company prior to the first solicitation of a Holder made by any

                                       -11-










Person in respect of any such action, or, in the case of any such vote, prior to
such  vote,  the record  date for any such  action or vote shall be the 30th day
(or,  if later,  the date of the most  recent  list of  Holders  required  to be
provided  pursuant to Section 701) prior to such first  solicitation or vote, as
the case may be. With regard to any record  date,  only the Holders on such date
(or their duly  designated  proxies)  shall be entitled to give or take, or vote
on, the relevant action.

     (d) The ownership of Securities shall be proved by the Security Register.

     (e) Any request, demand, authorization,  direction, notice, consent, waiver
or other Act of the Holder of any Security shall bind every future Holder of the
same Security and the Holder of every Security  issued upon the  registration of
transfer  thereof  or in  exchange  therefor  or in lieu  thereof  in respect of
anything  done,  omitted or suffered to be done by the Trustee or the Company in
reliance  thereon,  whether  or not  notation  of such  action is made upon such
Security.

     (f) Without limiting the foregoing,  a Holder entitled hereunder to give or
take any such  action  with  regard to any  particular  Security  may do so with
regard to all or any part of the principal  amount of such Security or by one or
more duly appointed  agents each of which may do so pursuant to such appointment
with regard to all or any different part of such principal amount.  

SECTION 105.  NOTICES, ETC., TO TRUSTEE AND THE COMPANY.

     Any request, demand,  authorization,  direction, notice, consent, waiver or
Act of Holders or other  document  provided or permitted by this Indenture to be
made upon, given or furnished to, or filed with,

     (1) the Trustee by any Holder or by the  Company  shall be  sufficient  for
every purpose hereunder if made, given, furnished or filed in writing to or with
the  Trustee  at  its  Corporate  Trust  Office,   Attention:   Corporate  Trust
Administration, or

     (2) the Company by the  Trustee or by any Holder  shall be  sufficient  for
every purpose  hereunder  (unless  otherwise  herein  expressly  provided) if in
writing and mailed,  first-class postage prepaid, to the Company addressed to it
at its principal  offices specified in the first paragraph of this instrument or
at any other  address  previously  furnished  in writing  to the  Trustee by the
Company.

SECTION 106.  NOTICE TO HOLDERS; WAIVER.

     Where this  Indenture  provides  for  notice to Holders of any event,  such
notice shall be sufficiently given (unless otherwise herein expressly  provided)
if in writing and mailed,  first-class  postage prepaid, to each Holder affected
by such event, at such Holder's address as it appears in the Security  Register,
not later than the latest date (if any), and not earlier than the

                                       -12-










earliest date (if any),  prescribed  for the giving of such notice.  In any case
where  notice to  Holders  is given by mail,  neither  the  failure to mail such
notice,  nor any defect in any notice so mailed,  to any particular Holder shall
affect the sufficiency of such notice with respect to other Holders.  Any notice
when mailed to a Holder in the aforesaid manner shall be conclusively  deemed to
have been  received  by such  Holder  whether or not  actually  received by such
Holder.  Where this Indenture provides for notice in any manner, such notice may
be waived in writing by the Person  entitled  to  receive  such  notice,  either
before or after the  event,  and such  waiver  shall be the  equivalent  of such
notice.  Waivers of notice by Holders shall be filed with the Trustee,  but such
filing shall not be a condition precedent to the validity of any action taken in
reliance upon such waiver.

     In case by reason of the suspension of regular mail service or by reason of
any other cause it shall be impracticable to give such notice by mail, then such
notification as shall be made with the approval of the Trustee shall  constitute
a sufficient notification for every purpose hereunder.

SECTION 107.  CONFLICT WITH TRUST INDENTURE ACT.

     If any provision hereof limits,  qualifies or conflicts with a provision of
the Trust  Indenture  Act that is  required  under  such Act to be a part of and
govern this Indenture,  the latter provision shall control.  If any provision of
this  Indenture  modifies or excludes any  provision of the Trust  Indenture Act
that may be so modified or  excluded,  the latter  provision  shall be deemed to
apply to this  Indenture as so modified or to be  excluded,  as the case may be.

SECTION 108. EFFECT OF HEADINGS AND TABLE OF CONTENTS.

     The Article and Section  headings  herein and the Table of Contents are for
convenience only and shall not affect the construction hereof.

SECTION 109.  SUCCESSORS AND ASSIGNS.

     All  covenants and  agreements in this  Indenture by the Company shall bind
its successors and assigns, whether so expressed or not.

SECTION 110.  SEPARABILITY CLAUSE.

     In case any  provision  in this  Indenture  or in the  Securities  shall be
invalid, illegal or unenforceable,  the validity, legality and enforceability of
the remaining  provisions shall not in any way be affected or impaired  thereby.

SECTION 111. BENEFITS OF INDENTURE.

     Nothing in this Indenture or in the Securities,  express or implied,  shall
give  to any  Person,  other  than  the  parties  hereto  and  their  successors
hereunder, the holders of Preferred


                                       -13-









Securities (to the extent  provided  herein) and the Holders of Securities,  any
benefit or any legal or equitable right, remedy or claim under this Indenture.

SECTION 112.  GOVERNING LAW.

     THIS  INDENTURE  AND THE  SECURITIES  SHALL BE GOVERNED BY AND CONSTRUED IN
ACCORDANCE  WITH  THE LAWS OF THE  STATE  OF NEW  YORK,  WITHOUT  REGARD  TO ITS
PRINCIPLES OF CONFLICTS OF LAWS.

SECTION 113.  LEGAL HOLIDAYS.

     In any case where any  Interest  Payment  Date,  Redemption  Date or Stated
Maturity  of any  Security  or the last date on which a Holder  has the right to
convert his Securities  shall not be a Business Day, then  (notwithstanding  any
other provision of this Indenture or of the  Securities)  payment of interest or
principal or conversion of the Securities need not be made on such date, but may
be made on the next  succeeding  Business Day (except that, if such Business Day
is in the next succeeding calendar year, such Interest Payment Date,  Redemption
Date or Stated Maturity,  as the case may be, shall be the immediately preceding
Business Day) with the same force and effect as if made on the Interest  Payment
Date or  Redemption  Date,  or at the  Stated  Maturity  or on such last day for
conversion,  PROVIDED,  that no  interest  shall  accrue for the period from and
after such Interest  Payment Date,  Redemption Date or Stated  Maturity,  as the
case may be.


                                  ARTICLE TWO

                                 Security Forms

SECTION 201.  FORMS GENERALLY.

     The Securities and the Trustee's  certificates of  authentication  shall be
substantially  in the form of  Exhibit  A which is  hereby  incorporated  in and
expressly made a part of this  Indenture.  The  Securities  may have  notations,
legends or  endorsements  required by law, stock  exchange  rule,  agreements to
which the Company is subject, if any, or usage (provided that any such notation,
legend or endorsement is in a form acceptable to the Company). The Company shall
furnish  any such legend not  contained  in Exhibit A to the Trustee in writing.
Each  Security  shall be dated  the date of its  authentication.  The  terms and
provisions  of the  Securities  set forth in  Exhibit A are part of the terms of
this  Indenture and to the extent  applicable,  the Company and the Trustee,  by
their  execution and delivery of this  Indenture,  expressly agree to such terms
and provisions and to be bound thereby.

     The definitive Securities shall be typewritten or printed,  lithographed or
engraved or  produced  by any  combination  of these  methods on steel  engraved
borders or may be produced  in any other  manner  permitted  by the rules of any
securities exchange on which the Securities may

                                      -14-









be listed,  all as  determined by the officers  executing  such  Securities,  as
evidenced by their execution of such Securities.

SECTION 202.  INITIAL ISSUANCE TO PROPERTY TRUSTEE.

     The Securities  initially issued to the Property Trustee of the Trust shall
be in the  form of one or more  individual  certificates  in  definitive,  fully
registered form without distribution coupons and shall bear the following legend
(the "Restricted  Securities Legend") unless the Company determines otherwise in
accordance with applicable law:

     THIS  SECURITY AND ANY COMMON STOCK  ISSUED ON  CONVERSION  HEREOF HAVE NOT
BEEN  REGISTERED  UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE  "SECURITIES
ACT"), OR ANY STATE SECURITIES  LAWS.  NEITHER THIS SECURITY NOR ANY INTEREST OR
PARTICIPATION  HEREIN MAY BE REOFFERED,  SOLD, ASSIGNED,  TRANSFERRED,  PLEDGED,
ENCUMBERED  OR  OTHERWISE  DISPOSED  OF IN THE ABSENCE OF SUCH  REGISTRATION  OR
UNLESS SUCH  TRANSACTION  IS EXEMPT  FROM,  OR NOT SUBJECT TO, THE  REGISTRATION
REQUIREMENTS  OF  THE  SECURITIES  ACT.  THE  HOLDER  OF  THIS  SECURITY  BY ITS
ACCEPTANCE  HEREOF AGREES TO OFFER,  SELL OR OTHERWISE  TRANSFER SUCH  SECURITY,
PRIOR TO THE DATE WHICH IS THREE YEARS AFTER (OR SUCH SHORTER  PERIOD UNDER RULE
144(k) UNDER THE SECURITIES ACT OR ANY SUCCESSOR RULE) THE LATER OF THE ORIGINAL
ISSUE DATE HEREOF AND THE LAST DATE ON WHICH VANSTAR CORPORATION (THE "COMPANY")
OR ANY  AFFILIATE  OF THE  COMPANY  WAS  THE  OWNER  OF  THIS  SECURITY  (OR ANY
PREDECESSOR OF THIS SECURITY) (THE "RESALE  RESTRICTION  TERMINATION DATE") ONLY
(A) TO THE COMPANY,  (B) PURSUANT TO AN EFFECTIVE  REGISTRATION  STATEMENT UNDER
THE  SECURITIES  ACT, (C) FOR SO LONG AS THE  SECURITIES ARE ELIGIBLE FOR RESALE
PURSUANT TO RULE 144A UNDER THE  SECURITIES  ACT ("RULE  144A"),  TO A PERSON IT
REASONABLY BELIEVES IS A "QUALIFIED INSTITUTIONAL BUYER" AS DEFINED IN RULE 144A
THAT  PURCHASES  FOR  ITS  OWN  ACCOUNT  OR  FOR  THE  ACCOUNT  OF  A  QUALIFIED
INSTITUTIONAL  BUYER TO WHOM NOTICE IS GIVEN THAT THE  TRANSFER IS BEING MADE IN
RELIANCE ON RULE 144A, (D) PURSUANT TO OFFERS AND SALES TO NON-U.S. PERSONS THAT
OCCUR  OUTSIDE THE UNITED  STATES  WITHIN THE MEANING OF  REGULATION S UNDER THE
SECURITIES ACT, (E) TO AN INSTITUTIONAL "ACCREDITED INVESTOR" WITHIN THE MEANING
OF  SUBPARAGRAPH  (a)(1),  (2), (3) OR (7) OF RULE 501 UNDER THE  SECURITIES ACT
THAT IS ACQUIRING  THE SECURITY FOR ITS OWN ACCOUNT,  OR FOR THE ACCOUNT OF SUCH
AN INSTITUTIONAL  "ACCREDITED  INVESTOR," FOR INVESTMENT PURPOSES AND NOT WITH A
VIEW TO, OR FOR OFFER OR SALE IN CONNECTION  WITH, ANY DISTRIBUTION IN VIOLATION
OF THE SECURITIES ACT, OR (F) PURSUANT TO ANOTHER  AVAILABLE  EXEMPTION FROM THE
REGISTRATION  REQUIREMENTS OF THE SECURITIES  ACT,  SUBJECT TO THE COMPANY'S AND
THE  TRANSFER  AGENT'S  RIGHT  PRIOR TO ANY SUCH  OFFER,  SALE OR  TRANSFER  (i)
PURSUANT


                                    -15-









TO CLAUSES  (D),  (E) OR (F) TO REQUIRE  THE  DELIVERY OF AN OPINION OF COUNSEL,
CERTIFICATION AND/OR OTHER INFORMATION SATISFACTORY TO EACH OF THEM, AND (ii) IN
EACH OF THE FOREGOING  CASES,  TO REQUIRE THAT A CERTIFICATE  OF TRANSFER IN THE
FORM  APPEARING ON THIS SECURITY IS COMPLETED AND DELIVERED BY THE TRANSFEROR TO
THE  TRANSFER  AGENT.  THIS LEGEND WILL BE REMOVED  UPON THE REQUEST OF A HOLDER
AFTER THE RESALE RESTRICTION TERMINATION DATE.

                                  ARTICLE THREE

                                 The Securities

SECTION 301.  TITLE AND TERMS.

     The aggregate  principal amount of Securities that may be authenticated and
delivered under this Indenture is limited to the sum of (a) $180,412,350 and (b)
such aggregate  principal  amount (which may not exceed  $207,474,200  aggregate
principal  amount) of  Securities,  if any, as shall be  purchased  by the Trust
pursuant to an over-allotment option in accordance with the terms and provisions
of the Purchase Agreement except for Securities authenticated and delivered upon
registration of transfer of, or in exchange for, or in lieu of, other Securities
pursuant to Section 304, 305, 306, 906, 1108 or 1301.

     The  Securities  shall be known and  designated as the "6 3/4%  Convertible
Subordinated Debentures due 2016" of the Company. Their Stated Maturity shall be
October 1, 2016,  and they shall bear  interest at the rate of 6 3/4% per annum,
from October 2, 1996 or from the most recent  Interest  Payment Date (as defined
below) to which interest has been paid or duly provided for, as the case may be,
payable  quarterly  (subject to deferral as set forth  herein),  in arrears,  on
January 1, April 1, July 1 and October 1 (each an  "Interest  Payment  Date") of
each year,  commencing  January 1, 1997 until the  principal  thereof is paid or
made  available for payment,  and they shall be paid to the Person in whose name
the Security is registered  at the close of business on the regular  record date
for such  interest  installment,  which  shall be the close of  business  on the
Business  Day  immediately  preceding  such  Interest  Payment  Date;  PROVIDED,
HOWEVER,  that  for so long as the  Securities  are  held  by the  Trust  or the
Property  Trustee of the Trust, if any Preferred  Securities (or if the Trust is
liquidated in  connection  with a Special  Event,  any  Securities)  are held in
certificated  form,  the Record Date for each Interest  Payment Date shall be 15
days  prior to such  Interest  Payment  Date (in each case,  a  "Regular  Record
Date").  Interest will compound  quarterly and will accrue at the rate of 6 3/4%
per annum on any  interest  installment  in arrears for more than one quarter or
during an  extension of an interest  payment  period as set forth in Section 312
hereof.

     The amount of interest payable for any period will be computed on the basis
of a 360-day year of twelve 30-day  months.  Except as provided in the following
sentence,  the amount of  interest  payable for any period  shorter  than a full
quarterly period for which interest is computed

                                    -16-









will be computed on the basis of the actual number of days elapsed. In the event
that any date on which  interest is payable on the  Securities is not a Business
Day,  then  payment  of  interest  payable on such date will be made on the next
succeeding  day which is a  Business  Day (and  without  any  interest  or other
payment in respect of any such delay),  except that,  if such Business Day is in
the next succeeding calendar year, such payment shall be made on the immediately
preceding  Business  Day, in each case with the same force and effect as if made
on such date.

     If at any time while the Property  Trustee is the Holder of any Securities,
the  Trust  or the  Property  Trustee  is  required  to pay any  taxes,  duties,
assessments or governmental  charges of whatever nature (other than  withholding
taxes) imposed by the United States, or any other taxing authority, then, in any
such case, the Company will pay as additional interest  ("Additional  Interest")
on the  Securities  held by the  Property  Trustee,  such  amounts  as  shall be
required  so that the net  amounts  received  and  retained by the Trust and the
Property  Trustee  after  paying any such taxes,  duties,  assessments  or other
governmental  charges  will be not  less  than the  amounts  the  Trust  and the
Property Trustee would have received had no such taxes,  duties,  assessments or
other governmental charges been imposed.

     The  principal  of and interest on the  Securities  shall be payable at the
office or agency in the United States maintained by the Company for such purpose
and at any other office or agency  maintained by the Company for such purpose in
such coin or currency of the United  States of America as at the time of payment
is legal tender for payment of public and private debts; PROVIDED, HOWEVER, that
unless the Securities are held by the Trust or any successor  permissible  under
the Declaration, at the option of the Company payment of interest may be made by
check mailed to the address of the Person entitled thereto as such address shall
appear in the Security Register.

     The  Securities  shall be redeemable as provided in Article  Eleven hereof.

     The Securities shall be convertible as provided in Article Thirteen hereof.

SECTION 302.  DENOMINATIONS.

     The Securities  shall be issuable only in registered  form without  coupons
and only in denominations of $50 and integral multiples thereof.

SECTION 303.  EXECUTION, AUTHENTICATION, DELIVERY AND DATE.

     The  Securities  shall be executed on behalf of the Company by its Chairman
of the Board,  its Vice Chairman of the Board,  its President or one of its Vice
Presidents,  under  its  corporate  seal  reproduced  thereon  attested  by  its
Secretary or one of its  Assistant  Secretaries  or its  Treasurer or one of its
Assistant  Treasurers.  The signature of any of these officers on the Securities
may be manual or facsimile.


                                    -17-









     Securities  bearing the manual or facsimile  signatures of individuals  who
were at any time the proper  officers  of the  Company  shall bind the  Company,
notwithstanding  that such  individuals  or any of them have ceased to hold such
offices prior to the  authentication  and delivery of such Securities or did not
hold such offices at the date of such Securities.

     At any time and from time to time after the  execution and delivery of this
Indenture,  the Company may  deliver  Securities  executed by the Company to the
Trustee for authentication, together with Company's Order for the authentication
and  delivery  of such  Securities;  and the  Trustee  in  accordance  with such
Company's  Order  shall  authenticate  and  make  available  for  delivery  such
Securities as provided in this Indenture, and not otherwise.
     No Security  shall be entitled to any benefit  under this  Indenture  or be
valid or  obligatory  for any purpose  unless there  appears on such  Security a
certificate  of  authentication  substantially  in the form  provided for herein
executed  by the  Trustee by manual  signature,  and such  certificate  upon any
Security shall be conclusive evidence, and the only evidence, that such Security
has been duly authenticated and delivered hereunder.

SECTION 304.  TEMPORARY SECURITIES.

     Pending the preparation of definitive Securities,  the Company may execute,
and upon receipt of an  Company's  Order,  the Trustee  shall  authenticate  and
deliver,  temporary  Securities  which are printed,  lithographed,  typewritten,
mimeographed   or   otherwise   produced,   in  any   authorized   denomination,
substantially  of the tenor of the  definitive  Securities in lieu of which they
are issued and with such appropriate  insertions,  omissions,  substitutions and
other  variations as the officers  executing such  Securities may determine,  as
evidenced by their execution of such Securities.

     If  temporary  Securities  are issued,  the Company  will cause  definitive
Securities to be prepared without  unreasonable  delay. After the preparation of
definitive  Securities,  the  temporary  Securities  shall be  exchangeable  for
definitive  Securities upon surrender of the temporary  Securities at any office
or agency of the Company designated  pursuant to Section 1002, without charge to
the  Holder.  Upon  surrender  for  cancellation  of any one or  more  temporary
Securities the Company shall execute and the Trustee shall authenticate and make
available  for  delivery  in  exchange  therefor  a  like  principal  amount  of
definitive  Securities  of  authorized  denominations.  Until so  exchanged  the
temporary  Securities  shall in all  respects be  entitled to the same  benefits
under this Indenture as definitive Securities.

SECTION 305.  REGISTRATION, REGISTRATION OF TRANSFER AND EXCHANGE.

     (a)  GENERAL.

     The Company  shall cause to be kept at the  Corporate  Trust  Office of the
Trustee a register  (the  register  maintained  in such  office and in any other
office or agency  designated  pursuant to Section  1002 being  herein  sometimes
collectively referred to as the "Security


                                    -18-









Register") in which, subject to such reasonable regulations as it may prescribe,
the Company shall provide for the registration of Securities and of transfers of
Securities. The Trustee is hereby appointed "Security Registrar" for the purpose
of registering Securities and transfers of Securities as herein provided.

     Upon surrender for registration of transfer of any Security at an office or
agency of the Company designated pursuant to Section 1002 for such purpose,  the
Company shall execute,  and the Trustee shall  authenticate and deliver,  in the
name of the designated transferee or transferees,  one or more new Securities of
any authorized denominations and of a like aggregate principal amount.

     At the  option  of  the  Holder,  Securities  may be  exchanged  for  other
Securities of any authorized  denominations  and of a like  aggregate  principal
amount,  upon  surrender  of the  Securities  to be  exchanged at such office or
agency.  Whenever any Securities are so  surrendered  for exchange,  the Company
shall  execute,  and the  Trustee  shall  authenticate  and make  available  for
delivery,  the  Securities  which the Holder  making the exchange is entitled to
receive.

     All  Securities  issued  upon any  registration  of transfer or exchange of
Securities  shall be the valid  obligations of the Company,  evidencing the same
debt, and entitled to the same benefits under this Indenture,  as the Securities
surrendered upon such registration of transfer or exchange.

     Every Security presented or surrendered for registration of transfer or for
exchange  shall (if so required by the Company or the Trustee) be duly endorsed,
or be accompanied by a written  instrument of transfer in form  satisfactory  to
the Company and the Security  Registrar duly executed,  by the Holder thereof or
his attorney duly authorized in writing.

     No  service  charge  shall  be made for any  registration  of  transfer  or
exchange of Securities,  but the Company may require payment of a sum sufficient
to cover any tax or other governmental  charge that may be imposed in connection
with any  registration  of  transfer  or  exchange  of  Securities,  other  than
exchanges pursuant to Section 304, 906, 1108 or 1301 not involving any transfer.

     The Company  shall not be required (i) in the case of a partial  redemption
of the Securities,  to issue,  register the transfer of or exchange any Security
during a period  beginning  at the opening of business 15 days before the day of
the mailing of a notice of  redemption  of  Securities  selected for  redemption
under  Section  1104 and  ending  at the  close of  business  on the day of such
mailing,  or (ii) to  register  the  transfer  of or  exchange  any  Security so
selected for redemption in whole or in part,  except the  unredeemed  portion of
any Security being redeemed in part.

     (b)  TRANSFER PROCEDURES AND RESTRICTIONS.


                                    -19-









     The  Securities  may not be  transferred  except  in  compliance  with  the
Restricted  Securities  Legend  unless  otherwise  determined  by the Company in
accordance with  applicable law. Upon any  distribution of the Securities to the
holders of the  Preferred  Securities in accordance  with the  Declaration,  the
Company and the Trustee shall enter into a  supplemental  indenture  pursuant to
Section 901(f) to provide for transfer  procedures and restrictions with respect
to the Securities substantially similar to those contained in the Declaration to
the  extent  applicable  in the  circumstances  existing  at the  time  of  such
distribution.

SECTION 306.  MUTILATED, DESTROYED, LOST AND STOLEN SECURITIES.

     If any mutilated Security is surrendered to the Trustee,  the Company shall
execute and the Trustee shall  authenticate  and deliver in exchange  therefor a
new  Security  of like  tenor and  principal  amount  and  bearing a number  not
contemporaneously Outstanding.

     If there shall be  delivered to the Company and the Trustee (i) evidence to
their  satisfaction of the  destruction,  loss or theft of any Security and (ii)
such  security or  indemnity as may be required by them to save each of them and
any agent of either of them  harmless,  then,  in the  absence  of notice to the
Company or the  Trustee  that such  Security  has been  acquired  by a bona fide
purchaser,  the Company  shall execute and the Trustee  shall  authenticate  and
deliver, in lieu of any such destroyed,  lost or stolen Security, a new Security
of like tenor and  principal  amount and bearing a number not  contemporaneously
Outstanding.

     In case any such mutilated,  destroyed,  lost or stolen Security has become
or is about to become  due and  payable,  the  Company  in its  discretion  may,
instead of issuing a new Security, pay such Security.

     Upon the issuance of any new Security  under this Section,  the Company may
require the payment of a sum  sufficient to cover any tax or other  governmental
charge that may be imposed in relation thereto and any other expenses (including
the fees and expenses of the Trustee) connected therewith.

     Every  new  Security  issued  pursuant  to  this  Section  in  lieu  of any
destroyed,  lost or stolen  Security  shall  constitute  an original  additional
contractual  obligation of the Company,  whether or not the  destroyed,  lost or
stolen  Security  shall be at any  time  enforceable  by  anyone,  and  shall be
entitled to all the benefits of this Indenture equally and proportionately  with
any and all other Securities duly issued hereunder.

     The  provisions of this Section are  exclusive  and shall  preclude (to the
extent  lawful) all other rights and remedies of the Holders with respect to the
replacement  or  payment of  mutilated,  destroyed,  lost or stolen  Securities.

SECTION 307. PAYMENT OF INTEREST; INTEREST RIGHTS PRESERVED.

                                    -20-










     Interest on any Security which is payable,  and is punctually  paid or duly
provided for, on any Interest  Payment Date shall be paid to the Person in whose
name that Security (or one or more Predecessor  Securities) is registered at the
close of business on the Regular Record Date,  subject to any right to defer the
payment of Interest hereunder.

     Any interest on any Security which is payable,  but is not punctually  paid
or duly provided  for, on any Interest  Payment Date (herein  called  "Defaulted
Interest")  shall  forthwith  cease to be payable to the Holder on the  relevant
Regular  Record Date by virtue of having been such  Holder,  and such  Defaulted
Interest may be paid by the Company,  at its election in each case,  as provided
in Clause (1) or (2) below:

          (1) The Company may elect to make payment of any Defaulted Interest to
     the Persons in whose names the Securities (or their respective  Predecessor
     Securities)  are  registered  at the close of business on a Special  Record
     Date for the payment of such  Defaulted  Interest,  which shall be fixed in
     the  following  manner.  The Company shall notify the Trustee in writing of
     the amount of Defaulted  Interest  proposed to be paid on each Security and
     the date of the proposed  payment,  and at the same time the Company  shall
     deposit with the Trustee an amount of money equal to the  aggregate  amount
     proposed  to be paid in respect of such  Defaulted  Interest  or shall make
     arrangements satisfactory to the Trustee for such deposit prior to the date
     of the proposed payment,  such money when deposited to be held in trust for
     the benefit of the Persons  entitled to such Defaulted  Interest as in this
     Clause provided.  Thereupon the Trustee shall fix a Special Record Date for
     the payment of such Defaulted Interest which shall be not more than 15 days
     and not less than 10 days prior to the date of the proposed payment and not
     less than 10 days  after the  receipt by  the-Trustee  of the notice of the
     proposed  payment.  The Trustee shall  promptly  notify the Company of such
     Special  Record Date and,  in the name and at the  expense of the  Company,
     shall cause notice of the proposed  payment of such Defaulted  Interest and
     the Special Record Date therefor to be mailed, first-class postage prepaid,
     to each Holder at his address as it appears in the Security  Register,  not
     less than 10 days prior to such Special Record Date. Notice of the proposed
     payment of such  Defaulted  Interest and the Special  Record Date  therefor
     having been so mailed, such Defaulted Interest shall be paid to the Persons
     in whose names the Securities (or their respective Predecessor  Securities)
     are  registered  at the close of business on such  Special  Record Date and
     shall no longer be payable pursuant to the following Clause (2).

          (2) The  Company  may make  payment of any  Defaulted  Interest in any
     other  lawful  manner  not  inconsistent   with  the  requirements  of  any
     securities  exchange  on which the  Securities  may be listed,  and,  if so
     listed,  upon such notice as may be required by such  exchange,  if,  after
     notice given by the Company to the Trustee of the proposed payment pursuant
     to this Clause,  such manner of payment shall be deemed  practicable by the
     Trustee.

     Subject  to  the  foregoing  provisions  of  this  Section,  each  Security
delivered  under this Indenture upon  registration of transfer of or in exchange
for or in lieu of any other Security shall


                                    -21-









carry the rights to interest  accrued and unpaid,  and to accrue  (including  in
each such case Compounded Interest), which were carried by such other Security.

     In the case of any  Security  which is converted  after any Regular  Record
Date and on or prior to the next  succeeding  Interest  Payment Date (other than
any Security  whose Maturity is prior to such Interest  Payment Date),  interest
whose Stated Maturity is on such Interest  Payment Date shall be payable on such
Interest  Payment  Date  notwithstanding  such  conversion,  and  such  interest
(whether  or not  punctually  paid or duly  provided  for)  shall be paid to the
Person in whose name that Security (or one or more  Predecessor  Securities)  is
registered  at the close of  business on such  Regular  Record  Date.  Except as
otherwise expressly provided in the immediately  preceding sentence, in the case
of any Security that is converted,  interest whose Stated  Maturity is after the
date of conversion of such Security shall not be payable,  and the Company shall
not make nor be required to make any other payment, adjustment or allowance with
respect  to  accrued  but  unpaid  interest  (including   Additional   Interest,
Compounded  Interest and Liquidated  Damages) on the Securities being converted,
which shall be deemed to be paid in full.

SECTION 308.  PERSONS DEEMED OWNERS.

     Prior to due presentment of a Security for  registration  of transfer,  the
Company,  the  Trustee and any agent of the Company or the Trustee may treat the
Person in whose name such  Security is  registered as the owner of such Security
for the purpose of  receiving  payment of  principal  of and (subject to Section
307) interest (including Additional Interest, Compounded Interest and Liquidated
Damages) on such Security and for all other purposes whatsoever,  whether or not
such Security be overdue,  and neither the Company, the Trustee nor any agent of
the Company or the Trustee shall be affected by notice to the contrary.

SECTION 309.  CANCELLATION.

     All  Securities  surrendered  for  payment,  redemption,   registration  of
transfer or exchange or conversion  shall,  if  surrendered  to any Person other
than the Trustee,  be delivered to the Trustee and shall be promptly canceled by
it. The Company may at any time  deliver to the  Trustee  for  cancellation  any
Securities  previously  authenticated and delivered  hereunder which the Company
may have  acquired in any manner  whatsoever,  and all  Securities  so delivered
shall be promptly canceled by the Trustee.  No Securities shall be authenticated
in lieu of or in  exchange  for any  Securities  canceled  as  provided  in this
Section,  except  as  expressly  permitted  by  this  Indenture.   All  canceled
Securities  held by the Trustee shall be disposed of as directed by an Company's
Order; PROVIDED,  HOWEVER, that the Trustee shall not be required to destroy the
certificates representing such canceled Securities.

SECTION 310.  RIGHT OF SET OFF.

     Notwithstanding  anything to the  contrary in this  Indenture,  the Company
shall have the right to set off any  payment it is  otherwise  required  to make
hereunder to the extent the


                                    -22-









Company has  theretofore  made, or is  concurrently  on the date of such payment
making, a payment under the Guarantee.

SECTION 311.  CUSIP NUMBERS.

     The Company,  as Company, in issuing the Securities may use "CUSIP" numbers
(if then generally in use), and, if so, the Trustee shall use "CUSIP" numbers in
notices of  redemption  as a  convenience  to Holders;  PROVIDED,  that any such
notice may state that no  representation  is made as to the  correctness of such
numbers  either as printed on the  Securities or as contained in any notice of a
redemption  and that  reliance  may be placed  only on the other  identification
numbers printed on the Securities, and any such redemption shall not be affected
by any defect in or omission of such numbers.

SECTION 312.  OPTION TO EXTEND INTEREST PAYMENT PERIOD.

     (a) The  Company  shall  have the right at any time  during the term of the
Securities  to  defer  interest  payments  from  time to time by  extending  the
interest payment period for successive periods (each, an "Extension Period") not
exceeding 20 consecutive quarters for each such period;  PROVIDED,  no Extension
Period may extend beyond the maturity date of the Securities. At the end of each
Extension  Period,  the Company shall be responsible for the payment of, and the
Company  shall pay all interest  then accrued and unpaid  (including  Additional
Interest and  Liquidated  Damages)  together  with interest  thereon  compounded
quarterly at the rate  specified for the  Securities to the extent  permitted by
applicable  law  ("Compounded  Interest");  PROVIDED,  that during any Extension
Period,  the  Company  shall  not,  and shall not allow any of its  Subsidiaries
(other  than,   with  respect  to  clause  (i)  below  only,  its   wholly-owned
Subsidiaries)  to, (i)  declare or pay  dividends  on, make  distributions  with
respect to, or redeem,  purchase or acquire,  or make a liquidation payment with
respect to, any of its capital stock (except for (1) dividends or  distributions
in  shares  of  Common  Stock on Common  Stock or on the  Preferred  Stock,  (2)
purchases or  acquisitions of shares of Common Stock made in connection with any
employee  benefit plan of the Company or its subsidiaries in the ordinary course
of business or pursuant to employment  agreements  with officers or employees of
the Company or its subsidiaries entered into in the ordinary course of business,
provided that such repurchases by the Company made from officers or employees of
the Company or its subsidiaries  pursuant to employment agreements shall be made
at a price not to exceed the market value on the date of any such repurchase and
shall  not  exceed  $1  million  in the  aggregate  for all such  employees  and
officers,  (3)  conversions  or  exchanges  of shares of common stock of any one
class  into  shares  of  common  stock  of  another  class or (4)  purchases  of
fractional  interests in shares of the Company's  capital stock  pursuant to the
conversion  or exchange  provisions  of any of the  Company's  securities  being
converted  or  exchanged),  (ii) make any  payment  of  interest,  principal  or
premium,  if any, on or repay,  repurchase or redeem, any debt securities issued
by the Company that rank junior to or PARI PASSU with the  Securities  and (iii)
make  any  guarantee  payments  with  respect  to the  foregoing.  Prior  to the
termination  of any such Extension  Period,  the Company may further extend such
Extension  Period;  PROVIDED,  that  such  Extension  Period  together  with all
previous and further extensions thereof may not exceed


                                    -23-









20  consecutive  quarters  and  may  not  extend  beyond  the  maturity  of  the
Securities.  Upon the termination of any Extension Period and the payment of all
amounts then due, the Company may commence a new  Extension  Period,  subject to
the above  requirements.  No interest during an Extension Period,  except at the
end thereof, shall be due and payable.

     (b) If the  Property  Trustee is the sole Holder of the  Securities  at the
time the Company  selects an Extension  Period,  the Company  shall give written
notice to the  Regular  Trustees,  the  Property  Trustee and the Trustee of its
selection  of such  Extension  Period  at least  one  Business  Day prior to the
earlier  of (i) the date  the  distributions  on the  Preferred  Securities  are
payable  or (ii) if the  Preferred  Securities  are listed on the New York Stock
Exchange,  Inc. ("NYSE") or other stock exchange or quotation  system,  the date
the  Trust is  required  to give  notice to the NYSE or other  applicable  self-
regulatory  organization or to holders of the Preferred Securities of the record
date or the date such distributions are payable,  but in any event not less than
ten Business Days prior to such record date.

     (c) The Trustee shall  promptly  give notice of the Company's  selection of
such  Extension  Period  to the  holders  of the  Preferred  Securities.  If the
Property  Trustee  is not the sole  Holder at the time the  Company  selects  an
Extension  Period,  the Company  shall give the Holders and the Trustee  written
notice of its  selection of such  Extension  Period at least ten  Business  Days
prior to the earlier of (i) the next succeeding Interest Payment Date or (ii) if
the  Preferred  Securities  are listed on the NYSE or other  stock  exchange  or
quotation system, the date the Company is required to give notice to the NYSE or
other applicable self-regulatory organization or to Holders of the Securities on
the record or payment date of such related  interest  payment,  but in any event
not less than two Business Days prior to such record date.

     (d) The quarter in which any notice is given pursuant to paragraphs (b) and
(c) hereof  shall be counted as one of the 20 quarters  permitted in the maximum
Extension Period permitted under paragraph (a) hereof.

SECTION 313.  PAYING AGENT, SECURITY REGISTRAR AND CONVERSION AGENT.

     The Trustee will  initially  act as Paying  Agent,  Security  Registrar and
Conversion Agent. The Company may change any Paying Agent,  Security  Registrar,
co-registrar  or, with the consent of the Trust,  Conversion Agent without prior
notice. The Company or any of its Affiliates may act in any such capacity.

SECTION 314.  GLOBAL SECURITY.

     (a)  In connection with a Dissolution Event,

          (i) the  Securities in  certificated  form (other than as set forth in
clause (ii) below) may be presented  to the Trustee by the  Property  Trustee in
exchange  for a global  Security in an aggregate  principal  amount equal to the
aggregate principal amount of all Outstanding  Securities (a "Global Security"),
to be registered in the name of the Depositary, or


                                    -24-










its nominee, and delivered by the Trustee to the Depositary for crediting to the
accounts  of its  participants  pursuant  to  the  instructions  of the  Regular
Trustees. The Company upon any such presentation shall execute a Global Security
in such  aggregate  principal  amount and  deliver  the same to the  Trustee for
authentication  and delivery in accordance with this Indenture.  Payments on the
Securities issued as a Global Security will be made to the Depositary; and

          (ii)  if  any  Preferred   Securities   are  held  in  non  book-entry
certificated  form, the Securities in non  book-entry  certificated  form may be
presented  to the  Trustee by the  Property  Trustee and any  certificate  which
represents Preferred Securities (a "Preferred Security  Certificate") other than
Preferred  Securities  held by the  Depositary or its nominee  ("Non  Book-Entry
Preferred  Securities")  will be deemed to  represent  beneficial  interests  in
Securities  presented to the Trustee by the Property Trustee having an aggregate
principal amount equal to the aggregate liquidation amount of the Non Book-Entry
Preferred Securities until such Preferred Security Certificates are presented to
the Security  Registrar for transfer or reissuance at which time such  Preferred
Security Certificates will be canceled and a Security, registered in the name of
the holder of the Preferred Security Certificate or the transferee of the holder
of such Preferred  Security  Certificate,  as the case may be, with an aggregate
principal  amount equal to the  aggregate  liquidation  amount of the  Preferred
Security Certificate canceled,  will be executed by the Company and delivered to
the Trustee for  authentication  and delivery in accordance with this Indenture.
On issue of such Securities,  Securities with an equivalent  aggregate principal
amount that were presented by the Property Trustee to the Trustee will be deemed
to have been canceled.

     (b) If (i) the  Depositary  notifies  the Company  that it is  unwilling or
unable to continue as a  depositary  for such Global  Security  and no successor
depositary shall have been appointed,  (ii) the Depositary,  at any time, ceases
to be a clearing  agency  registered  under the  Exchange  Act at which time the
Depositary  is required to be so  registered  to act as such  depositary  and no
successor  depositary shall have been appointed,  (iii) the Company, in its sole
discretion, determine that such Global Security shall be so exchangeable or (iv)
there shall have  occurred an Event of Default with respect to such  Securities,
as the case may be, the Company will execute,  and,  subject to Article Three of
this Indenture, the Trustee, upon written notice from the Company and receipt of
an Company's Order,  will  authenticate and deliver the Securities in definitive
registered  form  without  coupons,  in  authorized  denominations,  and  in  an
aggregate  principal amount equal to the principal amount of the Global Security
in exchange for such Global Security.  In addition,  upon an Event of Default or
if the Company shall at any time determine  that the Securities  shall no longer
be represented by a Global  Security,  the Company will execute,  and subject to
Section  305 of this  Indenture,  the  Trustee,  upon  receipt  of an  Officers'
Certificate  evidencing such determination by the Company, will authenticate and
make available for delivery the Securities in definitive registered form without
coupons, in authorized denominations, and in an aggregate principal amount equal
to the  principal  amount of the Global  Security  in  exchange  for such Global
Security.  Upon the  exchange  of the Global  Security  for such  Securities  in
definitive  registered form without coupons,  in authorized  denominations,  the
Global Security shall be canceled by the Trustee.  Such Securities in definitive
registered  form issued in exchange for the Global  Security shall be registered
in such names and in such


                                    -25-









authorized  denominations as the Depositary,  pursuant to instructions  from its
direct or indirect  participants or otherwise,  shall instruct the Trustee.  The
Trustee shall  deliver such  Securities  to the  Depositary  for delivery to the
Persons in whose names such Securities are so registered.
                                ARTICLE FOUR

                        Satisfaction and Discharge

SECTION 401.  SATISFACTION AND DISCHARGE OF INDENTURE.

     This  Indenture  shall  cease to be of  further  effect  (except  as to any
surviving  rights  of  conversion,  registration  of  transfer  or  exchange  of
Securities  herein  expressly  provided for), and the Trustee,  on demand of the
Company and at the expense of the  Company,  shall  execute  proper  instruments
acknowledging satisfaction and discharge of this Indenture, when
          (1)  either

               (A) all Securities theretofore authenticated and delivered (other
than (i)  Securities  which have been  destroyed,  lost or stolen and which have
been replaced or paid as provided in Section 306 and (ii)  Securities  for whose
payment money has theretofore  been deposited in trust or segregated and held in
trust by the Company and  thereafter  repaid to the Company or  discharged  from
such trust,  as provided in Section 1003) have been delivered to the Trustee for
cancellation; or

               (B) all such Securities not theretofore  delivered to the Trustee
for cancellation  have become due and payable,  and the Company has deposited or
caused to be deposited  with the Trustee as trust funds in trust for the purpose
an amount  sufficient  to pay and  discharge  the  entire  indebtedness  on such
Securities  not  theretofore  delivered  to the  Trustee for  cancellation,  for
principal and interest (including Compounded Interest and Liquidated Damages) to
the date of such  deposit (in the case of  Securities  which have become due and
payable) or to the Stated Maturity or Redemption Date, as the case may be;

          (2) the Company  has paid or caused to be paid all other sums  payable
hereunder by the Company; and

          (3) the Company has delivered to the Trustee an Officers'  Certificate
and an Opinion of Counsel,  each stating that, in their opinion,  all conditions
precedent herein provided for relating to the satisfaction and discharge of this
Indenture have been complied with.

Notwithstanding   the  satisfaction   and  discharge  of  this  Indenture,   the
obligations  of the Company to the Trustee under Section 607 and, if money shall
have been deposited with the Trustee  pursuant to subclause (B) of Clause (1) of
this  Section,  the  obligations  of the Trustee  under Section 402 and the last
paragraph of Section 1003 shall survive.


                                    -26-










SECTION 402.  APPLICATION OF TRUST MONEY.

     Subject to the  provisions of the last paragraph of Section 1003, all money
deposited  with the  Trustee  pursuant to Section 401 shall be held in trust and
applied by it, in  accordance  with the  provisions of the  Securities  and this
Indenture,  to  the  payment,  either  directly  or  through  any  Paying  Agent
(including  the  Company  acting as its own  Paying  Agent) as the  Trustee  may
determine,  to the Persons entitled  thereto,  of the principal and interest for
whose  payment  such  money has been  deposited  with the  Trustee.  All  moneys
deposited with the Trustee pursuant to Section 401 (and held by it or any Paying
Agent) for the payment of Securities subsequently converted shall be returned to
the Company promptly following such conversion or, if sooner, upon receipt of an
Company's Request.


                                  ARTICLE FIVE

                                    Remedies

SECTION 501.  EVENTS OF DEFAULT.

     "Event of Default,"  wherever  used herein,  means any one of the following
events that has occurred and is  continuing  (whatever the reason for such Event
of Default and whether it shall be  voluntary or  involuntary  or be effected by
operation  of law or pursuant to any  judgment,  decree or order of any court or
any order, rule or regulation of any administrative or governmental body):

          (1) failure for 30 days to pay interest on the  Securities,  including
any Additional  Interest,  Compounded Interest and Liquidated Damages in respect
thereof, when due; PROVIDED that a valid extension of an interest payment period
will not  constitute  a  default  in the  payment  of  interest  (including  any
Additional  Interest,  Compounded  Interest  or  Liquidated  Damages)  for  this
purpose;

          (2) failure to pay principal of or premium,  if any, on the Securities
when due whether at maturity, upon redemption, by declaration or otherwise;
          (3) failure by the Company to deliver  shares of its Common Stock upon
an  election  by a holder of  Preferred  Securities  to convert  such  Preferred
Securities;

          (4) failure to observe or perform in all  material  respects any other
covenant  contained in the  Indenture for 60 days after notice to the Company by
the  Trustee  or by the  Holders of not less than 25% in  aggregate  Outstanding
principal amount of the Securities;

          (5) entry by a court  having  jurisdiction  in the  premises  of (A) a
decree or order for relief in respect of the  Company or any of its  Significant
Subsidiaries in an involuntary case or proceeding  under any applicable  Federal
or State bankruptcy, insolvency, reorganization


                                   -27-








or other  similar law or (B) a decree or order  adjudging  the Company or any of
its Significant  Subsidiaries a bankrupt or insolvent,  or approving as properly
filed a petition seeking reorganization,  arrangement, adjustment or composition
of or in respect of the Company or its Significant  Subsidiary,  as the case may
be,  under any  applicable  Federal or State law,  or  appointing  a  custodian,
receiver, liquidator,  assignee, trustee, sequestrator or other similar official
of the  Company  or its  Significant  Subsidiary,  as the  case  may  be,  or of
substantially all of the property of the Company or its Significant  Subsidiary,
as the case may be, or ordering  the winding up or  liquidation  of its affairs,
and the  continuance  of any such  decree or order for  relief or any such other
decree or order unstayed and in effect for a period of 60 consecutive days;

          (6)  the  commencement  by the  Company  or  any  of  its  Significant
Subsidiaries of a voluntary case or proceeding  under any applicable  Federal or
State  bankruptcy,  insolvency,  reorganization  or other  similar law or of any
other case or  proceeding  to be  adjudicated  a bankrupt or  insolvent,  or the
consent by the Company or any of its Significant  Subsidiaries to the entry of a
decree  or order for  relief in  respect  of  itself in an  involuntary  case or
proceeding  under  any  applicable  Federal  or  State  bankruptcy,  insolvency,
reorganization  or other similar law or to the commencement of any bankruptcy or
insolvency case or proceeding against the Company or its Significant Subsidiary,
as the case may be,  or the  filing  by the  Company  or any of its  Significant
Subsidiaries of a petition or answer or consent seeking reorganization or relief
under any applicable  Federal or State law, or the consent by the Company or any
of its  Significant  Subsidiaries  to the  filing  of  such  petition  or to the
appointment  of or  taking  possession  by a  custodian,  receiver,  liquidator,
assignee, trustee,  sequestrator or other similar official of the Company or its
Significant  Subsidiary,  as the case  may be,  or of  substantially  all of the
property  of  Company,  or the making by the  Company or any of its  Significant
Subsidiaries  of a general  assignment  for the  benefit  of  creditors,  or the
admission by the Company or any of its  Significant  Subsidiaries  in writing of
its  inability  to pay its debts  generally as they become due, or the taking of
corporate  action  by the  Company  or any of its  Significant  Subsidiaries  in
furtherance of any such action;

          (7)  the  voluntary  or   involuntary   dissolution,   winding  up  or
termination  of the Trust,  except in connection  with (i) the  distribution  of
Securities to holders of Preferred  Securities in  liquidation of the Trust upon
the redemption of all of the  outstanding  Preferred  Securities of the Trust or
(ii) certain mergers, consolidations or amalgamations,  each as permitted by the
Declaration; or

          (8)  DEFAULT  UNDER  ANY BOND,  DEBENTURE  OR ANY  OTHER  EVIDENCE  OF
INDEBTEDNESS  FOR  MONEY  BORROWED  BY THE  COMPANY  OR  ANY OF ITS  SIGNIFICANT
SUBSIDIARIES HAVING AN AGGREGATE  OUTSTANDING  PRINCIPAL AMOUNT IN EXCESS OF $20
MILLION,   WHICH  DEFAULT  SHALL  HAVE  RESULTED  IN  SUCH  INDEBTEDNESS   BEING
ACCELERATED,  OR FAILURE TO PAY WHEN DUE (BEYOND ANY  APPLICABLE  GRACE PERIODS)
ANY  SUCH  INDEBTEDNESS,   WITHOUT  SUCH  INDEBTEDNESS  BEING  DISCHARGED,  SUCH
ACCELERATION  HAVING BEEN  RESCINDED  OR ANNULLED OR SUCH  FAILURE TO PAY HAVING
BEEN CURED OR  WAIVED,  WITHIN 30 DAYS  AFTER  RECEIPT OF NOTICE  THEREOF BY THE
COMPANY FROM THE TRUSTEE OR BY THE COMPANY


                                   -28-








AND THE TRUSTEE FROM THE HOLDERS OF NOT LESS THAN 25% IN  AGGREGATE  OUTSTANDING
PRINCIPAL AMOUNT OF THE SECURITIES.

SECTION 502.  ACCELERATION OF MATURITY; RESCISSION AND ANNULMENT.

     If an Event of  Default  occurs and is  continuing,  then and in every such
case the Trustee or the Holders of not less than 25% in principal  amount of the
Outstanding  Securities  may declare the  principal of all the  Securities,  all
accrued interest  thereon and any other amounts payable  hereunder to be due and
payable  immediately,  by a notice in writing to the Company (and to the Trustee
if given by Holders), and upon any such declaration such principal,  all accrued
interest and such other amounts shall become immediately due and payable.

     At any time  after such a  declaration  of  acceleration  has been made and
before a judgment  or decree for  payment of the money due has been  obtained by
the Trustee as provided in this Article  hereinafter,  the Holders of a majority
in aggregate principal amount of the Outstanding  Securities,  by written notice
to the Company and the Trustee,  may rescind and annul such  declaration and its
consequences if:

          (1)  the  Company  has  paid  or  deposited  with  the  Trustee  a sum
sufficient to pay

               (A) all overdue  interest  (including  any  Additional  Interest,
Compounded Interest and Liquidated Damages) on all Securities,

               (B)  the  principal  of any  Securities  which  have  become  due
otherwise than by such  declaration of acceleration  and interest thereon at the
rate borne by the Securities, and

               (C) all sums paid or advanced by the  Trustee  hereunder  and the
reasonable  compensation,  expenses,  disbursements and advances of the Trustee,
its agents and counsel;

     and

          (2) all Events of Default, other than the non-payment of the principal
of and/or  interest on and/or all other amounts in respect of  Securities  which
have become due solely by such declaration of  acceleration,  have been cured or
waived as provided in Section 513.

     No such rescission shall affect any subsequent  default or impair any right
consequent thereon.

SECTION 503.  COLLECTION OF INDEBTEDNESS AND SUITS FOR ENFORCEMENT BY TRUSTEE.
     The Company covenants that if:


                                   -29-








          (1)  default is made in the  payment of any  interest  (including  any
Additional  Interest or Compounded  Interest) on any Security when such interest
becomes due and payable and such default continues for a period of 30 days, or

          (2) default is made in the payment of the principal of any Security at
the Maturity thereof,

the Company will upon demand of the  Trustee,  pay to it, for the benefit of the
Holders  of such  Securities,  the whole  amount  then due and  payable  on such
securities for principal and interest  (including  any  Additional  Payments and
Liquidated  Damages)  and, to the extent that payment  thereof  shall be legally
enforceable,  interest on any  overdue  principal  and on any  overdue  interest
(including any Additional Payments and Liquidated Damages), at the rate borne by
the  Securities,  and,  in addition  thereto,  such  further  amount as shall be
sufficient  to cover  the  costs  and  expenses  of  collection,  including  the
reasonable  compensation,  expenses,  disbursements and advances of the Trustee,
its agents and counsel.

     If an Event of Default  occurs and is  continuing,  the  Trustee may in its
discretion  proceed  to  protect  and  enforce  its rights and the rights of the
Holders by such appropriate  judicial proceedings as the Trustee shall deem most
effectual  to protect  and  enforce any such  rights,  whether for the  specific
enforcement  of any  covenant or  agreement  in this  Indenture or in aid of the
exercise of any power  granted  herein,  or to enforce any other proper  remedy.

SECTION 504. TRUSTEE MAY FILE PROOFS OF CLAIM.

     In case of any  judicial  proceeding  relative to the Company (or any other
obligor upon the Securities),  its property or its creditors,  the Trustee shall
be entitled and empowered,  by intervention in such proceeding or otherwise,  to
take any and all actions  authorized  under the Trust  Indenture Act in order to
have claims of the Holders and the Trustee  allowed in any such  proceeding.  In
particular, the Trustee shall be authorized to collect and receive any moneys or
other  property  payable or deliverable on any such claims and to distribute the
same; and any custodian,  receiver, assignee, trustee, liquidator,  sequestrator
or other similar official in any such judicial  proceeding is hereby  authorized
by each Holder to make such  payments to the Trustee  and, in the event that the
Trustee shall consent to the making of such payments directly to the Holders, to
pay to the Trustee any amount due it for the reasonable compensation,  expenses,
disbursements and advances of the Trustee, its agents and counsel, and any other
amounts due the Trustee under Section 607.

     No provision of this Indenture  shall be deemed to authorize the Trustee to
authorize  or  consent to or accept or adopt on behalf of any Holder any plan of
reorganization,  arrangement, adjustment or composition affecting the Securities
or the  rights of any  Holder  thereof or to  authorize  the  Trustee to vote in
respect of the claim of any Holder in any such proceeding.

SECTION 505.  TRUSTEE MAY ENFORCE CLAIMS WITHOUT POSSESSION OF SECURITIES.

                                   -30-








     All rights of action and claims under this  Indenture or the Securities may
be prosecuted  and enforced by the Trustee  without the possession of any of the
Securities or the production thereof in any proceeding relating thereto, and any
such  proceeding  instituted  by the Trustee shall be brought in its own name as
trustee of an express trust, and any recovery of judgment shall, after provision
for the payment of the  reasonable  compensation,  expenses,  disbursements  and
advances of the Trustee,  its agents and counsel,  be for the ratable benefit of
the  Holders  of the  Securities  in respect  of which  such  judgment  has been
recovered.

SECTION 506.  APPLICATION OF MONEY COLLECTED.

     Any money  collected  by the  Trustee  pursuant  to this  Article  shall be
applied in the following  order,  at the date or dates fixed by the Trustee and,
in case of the  distribution  of such money on account of  principal or interest
(including any Additional Payments and Liquidated Damages), upon presentation of
the  Securities  and the notation  thereon of the payment if only partially paid
and upon surrender thereof if fully paid:

     FIRST: To the payment of all amounts due the Trustee under Section 607; and

     SECOND:  To the payment of the amounts then due and unpaid for principal of
and interest  (including any Additional  Payments and Liquidated Damages) on the
Securities  in respect of which or for the  benefit of which such money has been
collected, ratably, without preference or priority of any kind, according to the
amounts due and payable on such Securities for principal and interest (including
any Compounded Interest), respectively.

SECTION 507.  LIMITATION ON SUITS.

     No Holder of any Security shall have any right to institute any proceeding,
judicial or otherwise, with respect to this Indenture, or for the appointment of
a receiver or trustee, or for any other remedy hereunder, unless

          (1) such Holder has previously  given written notice to the Trustee of
a continuing Event of Default;

          (2) if the Trust is not the sole holder of the Outstanding Securities,
the Holders of at least 25% in  aggregate  principal  amount of the  Outstanding
Securities  shall  have  made  written  request  to  the  Trustee  to  institute
proceedings  in  respect  of such  Event of  Default  in its own name as Trustee
hereunder;

          (3) such  Holder or Holders  have  offered to the  Trustee  reasonable
indemnity  against  the  costs,  expenses  and  liabilities  to be  incurred  in
compliance with such request;

          (4) the Trustee for 60 days after its receipt of such notice,  request
and offer of indemnity has failed to institute any such proceeding; and

                                   -31-








          (5) no direction inconsistent with such written request has been given
to the  Trustee  during  such  60-day  period by the  Holders of a  majority  in
principal amount of the Outstanding Securities;

it being  understood  and intended  that no one or more  Holders  shall have any
right in any  manner  whatever  by virtue  of, or by  availing  itself  of,  any
provision of this  Indenture to affect,  disturb or prejudice  the rights of any
other Holders, or to obtain or to seek to obtain priority or preference over any
other Holders or to enforce any right under this Indenture, except in the manner
herein  provided  and for the  equal and  ratable  benefit  of all the  Holders.

SECTION 508.  UNCONDITIONAL  RIGHT OF HOLDERS TO RECEIVE  PRINCIPAL AND INTEREST
AND CONVERT.

     Notwithstanding  any other provision in this  Indenture,  the Holder of any
Security shall have the right, which is absolute and  unconditional,  to receive
payment of the principal of and (subject to Section 307) interest (including any
Additional  Payments  and  Liquidated  Damages)  on such  Security on the Stated
Maturity  expressed  in such  Security  (or, in the case of  redemption,  on the
Redemption  Date) and to  convert  such  Security  in  accordance  with  Article
Thirteen and to institute suit for the enforcement of any such payment and right
to convert,  and such rights  shall not be impaired  without the consent of such
Holder.

SECTION 509.  RESTORATION OF RIGHTS AND REMEDIES.

     If the Trustee or any Holder has  instituted  any proceeding to enforce any
right or remedy under this Indenture and such  proceeding has been  discontinued
or abandoned for any reason, or has been determined  adversely to the Trustee or
to such Holder,  then and in every such case,  subject to any  determination  in
such  proceeding,  the  Company,  the Trustee and the Holders  shall be restored
severally and  respectively to their former  positions  hereunder and thereafter
all rights and remedies of the Trustee and the Holders shall  continue as though
no such proceeding had been instituted.

SECTION 510.  RIGHTS AND REMEDIES CUMULATIVE.

     Except as otherwise  provided with respect to the replacement or payment of
mutilated, destroyed, lost or stolen Securities in the last paragraph of Section
306, no right or remedy herein  conferred  upon or reserved to the Trustee or to
the Holders is intended to be exclusive of any other right or remedy,  and every
right and remedy shall,  to the extent  permitted by law, be  cumulative  and in
addition to every other right and remedy  given  hereunder  or now or  hereafter
existing at law or in equity or  otherwise.  The  assertion or employment of any
right or remedy  hereunder,  or  otherwise,  shall not  prevent  the  concurrent
assertion or employment of any other appropriate  right or remedy.  

SECTION 511.  DELAY OR OMISSION NOT WAIVER.


                                   -32-








     No delay or  omission  of the  Trustee or of any Holder of any  Security to
exercise any right or remedy accruing upon any Event of Default shall impair any
such right or remedy or  constitute  a waiver of any such Event of Default or an
acquiescence therein.  Every right and remedy given by this Article or by law to
the Trustee or to the Holders may be exercised  from time to time,  and as often
as may be deemed  expedient,  by the Trustee or by the Holders,  as the case may
be.

SECTION 512.  CONTROL BY HOLDERS.

     The Holders of a majority in principal amount of the Outstanding Securities
shall have the right to direct  the time,  method  and place of  conducting  any
proceeding  for any remedy  available to the Trustee or exercising  any trust or
power conferred on the Trustee; PROVIDED, that

          (1) such  direction  shall not be in conflict  with any rule of law or
with this Indenture; and

          (2) the Trustee may take any other action deemed proper by the Trustee
which is not inconsistent with such direction.

SECTION 513.  WAIVER OF PAST DEFAULTS.

     Subject to Section 902 hereof, the Holders of greater than 50% in principal
amount of the  Outstanding  Securities  may on behalf of the  Holders of all the
Securities  waive any past  default  hereunder  and its  consequences,  except a
default

          (1) in the payment of the principal of,  premium,  if any, or interest
(including  any  Additional  Payments  and  Liquidated  Damages) on any Security
(unless  such  default  has been cured and a sum  sufficient  to pay all matured
installments  of interest  (including  any  Additional  Payments and  Liquidated
Damages) and principal due otherwise  than by  acceleration  has been  deposited
with the Trustee); or

          (2) in respect of a covenant or provision  hereof which under  Article
Nine  cannot be  modified  or amended  without the consent of the Holder of each
Outstanding  Security affected;  PROVIDED,  HOWEVER,  that if the Securities are
held by the Trust or a trustee of the Trust,  such waiver shall not be effective
until the holders of greater than 50% in liquidation  amount of Trust Securities
shall have consented to such waiver;  PROVIDED,  FURTHER, that if the consent of
the Holder of each  Outstanding  Security is required,  such waiver shall not be
effective until each holder of the Trust Securities shall have consented to such
waiver.

     Upon any such waiver,  such default shall cease to exist,  and any Event of
Default arising  therefrom shall be deemed to have been cured, for every purpose
of this  Indenture;  but no such waiver shall extend to any  subsequent or other
default or impair any right consequent thereon.

SECTION 514.  UNDERTAKING FOR COSTS.


                                   -33-








     In any  suit  for  the  enforcement  of any  right  or  remedy  under  this
Indenture,  or in any suit against the Trustee for any action taken, suffered or
omitted by it as Trustee, a court may require any party litigant in such suit to
file an  undertaking to pay the costs of such suit, and may assess costs against
any such party  litigant,  in the manner and to the extent provided in the Trust
Indenture Act;  PROVIDED,  that neither this Section nor the Trust Indenture Act
shall be deemed to authorize any court to require such an undertaking or to make
such an  assessment  in any suit  instituted by the Company or the Trustee or in
any suit for the  enforcement  of the  right to  receive  the  principal  of and
interest  (including any Additional  Payments) on any Security or to convert any
Security in accordance with Article Thirteen.

SECTION 515.  WAIVER OF STAY OR EXTENSION LAWS.

     The Company  covenants  (to the extent that it may  lawfully do so) that it
will not at any time insist upon, or plead, or in any manner whatsoever claim or
take the benefit or advantage  of, any stay or extension  law wherever  enacted,
now or at any time  hereafter  in force,  which may affect the  covenants or the
performance  of this  Indenture;  and the  Company  (to the  extent  that it may
lawfully do so) hereby expressly waives all benefit or advantage of any such law
and  covenants  that it will not hinder,  delay or impede the  execution  of any
power herein granted to the Trustee, but will suffer and permit the execution of
every such power as though no such law had been enacted.

SECTION 516.  ENFORCEMENT BY HOLDERS OF PREFERRED SECURITIES.

     Notwithstanding  the  foregoing,  if an  Indenture  Event  of  Default  has
occurred  and is  continuing  and such Event of Default is  attributable  to the
failure of the Company to pay  interest or principal  on the  Securities  on the
date such interest or principal is otherwise payable,  the Company  acknowledges
that,  in such event,  a holder of Preferred  Securities  may institute a Direct
Action  for  payment  on or  after  the  respective  due date  specified  in the
Securities.  The Company  may not amend the  Indenture  to remove the  foregoing
right to bring a Direct  Action  without  the prior  written  consent of all the
holders of Preferred Securities. Notwithstanding any payment made to such holder
of Preferred  Securities by the Company in connection with a Direct Action,  the
Company  shall  remain  obligated  to pay the  principal  of or  interest on the
Securities  held by the Trust or the Property  Trustee and the Company  shall be
subrogated  to the  rights of the  holders  of such  Preferred  Securities  with
respect to payments on the  Preferred  Securities  to the extent of any payments
made by the  Company to any such  holders in any  Direct  Action.  Except as set
forth  elsewhere  herein  or  in  the  Declaration,  the  holders  of  Preferred
Securities will not be able to exercise  directly any other remedy  available to
the Holders.


                                   -34-









                                 ARTICLE SIX

                                 The Trustee

SECTION 601.  CERTAIN DUTIES AND RESPONSIBILITIES.

     The duties and  responsibilities of the Trustee shall be as provided by the
Trust  Indenture  Act.  Notwithstanding  the  foregoing,  no  provision  of this
Indenture shall require the Trustee to expend or risk its own funds or otherwise
incur any financial liability in the performance of any of its duties hereunder,
or in the exercise of any of its rights or powers,  if it shall have  reasonable
grounds for believing that repayment of such funds or adequate indemnity against
such risk or liability is not  reasonably  assured to it. Whether or not therein
expressly so provided, every provision of this Indenture relating to the conduct
or affecting  the  liability of or affording  protection to the Trustee shall be
subject to the provisions of this Section.

SECTION 602.  NOTICE OF DEFAULTS.

     The Trustee shall give the Holders  notice of any default  hereunder as and
to the extent provided by the Trust Indenture Act;  PROVIDED,  however,  that in
the case of any default of the character  specified in Section  501(4),  no such
notice to Holders  shall be given  until at least 30 days  after the  occurrence
thereof.  For the purpose of this Section,  the term  "default"  means any event
which is, or after  notice or lapse of time or both  would  become,  an Event of
Default.

SECTION 603.  CERTAIN RIGHTS OF TRUSTEE.

     Subject to the provisions of Section 601:

     (a) the Trustee  may rely and shall be  protected  in acting or  refraining
from acting upon any resolution,  certificate,  statement,  instrument, opinion,
report, notice, request, direction, consent, order, bond, debenture, note, other
evidence of indebtedness or other paper or document believed by it to be genuine
and to have been signed or presented by the proper party or parties;

     (b) any request or  direction  of the  Company  mentioned  herein  shall be
sufficiently  evidenced  by an  Company's  Request  or  Company's  Order and any
resolution  of the Board of Directors may be  sufficiently  evidenced by a Board
Resolution;

     (c) whenever in the administration of this Indenture the Trustee shall deem
it desirable that a matter be proved or established  prior to taking,  suffering
or omitting any action  hereunder,  the Trustee (unless other evidence be herein
specifically prescribed) may, in the absence of bad faith on its part, rely upon
an Officers' Certificate;

                                     -35-








     (d) the Trustee may  consult  with  counsel of its choice and the advice of
such counsel or any Opinion of Counsel shall be full and complete  authorization
and  protection  in  respect  of any  action  taken,  suffered  or omitted by it
hereunder in good faith and in reliance thereon;

     (e) the Trustee  shall be under no obligation to exercise any of the rights
or powers  vested in it by this  Indenture at the request or direction of any of
the Holders  pursuant to this Indenture,  unless such Holders shall have offered
to the Trustee reasonable security or indemnity against the costs,  expenses and
liabilities  which might be incurred by it in  compliance  with such  request or
direction;

     (f) the Trustee shall not be bound to make any investigation into the facts
or  matters  stated  in  any  resolution,  certificate,  statement,  instrument,
opinion,  report, notice, request,  direction,  consent, order, bond, debenture,
note,  other  evidence  of  indebtedness  or other  paper or  document,  but the
Trustee, in its discretion,  may make such further inquiry or investigation into
such facts or matters as it may see fit, and, if the Trustee shall  determine to
make such further inquiry or  investigation,  it shall be entitled to reasonable
examination of the books, records and premises of the Company,  personally or by
agent or attorney;

     (g) the  Trustee  may  execute  any of the  trusts or powers  hereunder  or
perform  any  duties  hereunder  either  directly  or by or  through  agents  or
attorneys  and the  Trustee  shall  not be  responsible  for any  misconduct  or
negligence  on the part of any agent or attorney  appointed  with due care by it
hereunder; and

     (h) the  Trustee  shall not be liable for any action  taken,  suffered,  or
omitted  to  be  taken  by it in  good  faith,  without  negligence  or  willful
misconduct,  and  reasonably  believed  by it to be  authorized  or  within  the
discretion or rights or powers conferred upon it by this Indenture. 

SECTION 604.  NOT RESPONSIBLE FOR RECITALS OR ISSUANCE OF SECURITIES.

     The recitals  contained herein and in the Securities,  except the Trustee's
certificates of authentication, shall be taken as the statements of the Company,
and the Trustee assumes no responsibility for their correctness.
 The Trustee makes no  representations as to the validity or sufficiency of this
Indenture or of the Securities. The Trustee shall not be accountable for the use
or application by the Company of the Securities or the proceeds thereof.

SECTION 605.  MAY HOLD SECURITIES.

     The Trustee, any Paying Agent, any Security Registrar or any other agent of
the Company,  in its individual or any other  capacity,  may become the owner or
pledgee of Securities  and,  subject to Sections 608 and 613, may otherwise deal
with the Company or any Affiliate  thereof with the same rights it would have if
it were not Trustee, Paying Agent, Security Registrar, or such other agent.

SECTION 606.  MONEY HELD IN TRUST.

                                     -36-








     Money held by the Trustee in trust  hereunder  need not be segregated  from
other funds except to the extent  required by law. The Trustee shall be under no
liability for interest on any money received by it hereunder except as otherwise
agreed with the Company.

SECTION 607.  COMPENSATION AND REIMBURSEMENT.

     The Company agrees:

     (a) to pay to the Trustee from time to time such reasonable compensation as
the  Company  and the  Trustee  shall from time to time agree in writing for all
services rendered by it hereunder;

     (b) except as otherwise expressly provided herein, to reimburse the Trustee
upon its request for all reasonable expenses,  fees,  disbursements and advances
incurred  or made by the  Trustee  in  accordance  with  any  provision  of this
Indenture   (including  the  reasonable   compensation   and  the  expenses  and
disbursements of its agents and counsel), except any such expense,  disbursement
or advance as may be attributable to its negligence or bad faith; and

     (c) to indemnify the Trustee and any  predecessor  Trustee for, and to hold
it harmless against, any loss,  liability,  claim, action, suit, cost, damage or
reasonable expense, including taxes (other than taxes based on the income of the
Trustee),  incurred without  negligence or bad faith on its part, arising out of
or in connection with the acceptance or administration of this trust,  including
the  reasonable  costs and  expenses of  defending  itself  against any claim or
liability in connection with the exercise or performance of any of its powers or
duties hereunder.

     When the Trustee incurs expenses or renders  services in connection with an
Event of Default  specified in Section  501(6) or Section  501(7),  the expenses
(including  the  reasonable  charges  and  expenses  of  its  counsel)  and  the
compensation   for  the  services  are  intended  to   constitute   expenses  of
administration  under any applicable Federal or state bankruptcy,  insolvency or
other similar law.

     The  provisions  of this  Section  shall  survive the  termination  of this
Indenture.

SECTION 608.  DISQUALIFICATION; CONFLICTING INTERESTS.

     If the  Trustee  has or shall  acquire a  conflicting  interest  within the
meaning of the Trust  Indenture  Act, the Trustee  shall either  eliminate  such
interest or resign,  to the extent and in the manner provided by, and subject to
the  provisions  of, the Trust  Indenture Act and this  Indenture.  

SECTION 609.  CORPORATE TRUSTEE REQUIRED; ELIGIBILITY.

     There  shall at all times be a Trustee  hereunder  which  shall be a Person
that is eligible  pursuant to the Trust  Indenture  Act to act as such and has a
combined  capital  and  surplus  of at  least  $50,000,000  and  has  (or has an
affiliate that has) its Corporate Trust Office in New York,

                                     -37-








New York.  If such Person  publishes  reports of  condition  at least  annually,
pursuant  to law or to the  requirements  of its  federal,  state,  District  of
Columbia  or  territorial  supervising  or  examining  authority,  then  for the
purposes of this Section,  the combined capital and surplus of such Person shall
be deemed to be its combined capital and surplus as set forth in its most recent
report of condition so  published.  If at any time the Trustee shall cease to be
eligible in accordance  with the  provisions  of this  Section,  it shall resign
immediately  in the  manner and with the effect  hereinafter  specified  in this
Article.

SECTION 610.  RESIGNATION AND REMOVAL; APPOINTMENT OF SUCCESSOR.

     (a) No  resignation  or  removal of the  Trustee  and no  appointment  of a
successor  Trustee  pursuant to this Article  shall become  effective  until the
acceptance of appointment by the successor Trustee under Section 611.

     (b) The Trustee may resign at any time by giving  written notice thereof to
the Company.  If an instrument  of  acceptance by a successor  Trustee shall not
have been  delivered  to the  Trustee  within 30 days  after the  giving of such
notice of resignation, the resigning Trustee may petition any court of competent
jurisdiction for the appointment of a successor Trustee.

     (c) The  Trustee  may be  removed  at any time by Act of the  Holders  of a
majority in principal  amount of the  Outstanding  Securities,  delivered to the
Trustee  and to the  Company.  If an  instrument  of  acceptance  by a successor
Trustee  shall not have been  delivered to the Trustee  within 30 days after the
giving of such notice of removal,  the removed Trustee may petition any court of
competent jurisdiction for the appointment of a successor Trustee.

     (d) If at any time:

          (1) the Trustee  shall fail to comply with  Section 608 after  written
request therefor by the Company or by any Holder who has been a bona fide Holder
of a Security for at least six months, or

          (2) the Trustee shall cease to be eligible under Section 609 and shall
fail to resign  after  written  request  therefor  by the Company or by any such
Holder, or

          (3) the Trustee shall become  incapable of acting or shall be adjudged
a bankrupt or insolvent or a receiver of the Trustee or of its property shall be
appointed or any public  officer  shall take charge or control of the Trustee or
of its property or affairs for the purpose of  rehabilitation,  conservation  or
liquidation,  then, in any such case,  (i) the Company by Board  Resolution  may
remove the  Trustee,  or (ii)  subject to Section 514, any Holder who has been a
bona fide Holder of a Security for at least six months may, on behalf of himself
and all others similarly situated,  petition any court of competent jurisdiction
for the removal of the Trustee and the appointment of a successor Trustee.

                                     -38-








     (e) If the Trustee shall resign,  be removed or become incapable of acting,
or if a vacancy shall occur in the office of Trustee for any cause, the Company,
by a Board Resolution,  shall promptly appoint a successor  Trustee.  If, within
one year after such resignation,  removal or incapability,  or the occurrence of
such vacancy,  a successor Trustee shall be appointed by Act of the Holders of a
majority in  principal  amount of the  Outstanding  Securities  delivered to the
Company and the retiring  Trustee,  the  successor  Trustee so appointed  shall,
forthwith upon its acceptance of such appointment,  become the successor Trustee
and supersede the successor  Trustee  appointed by the Company.  If no successor
Trustee  shall have been so appointed by the Company or the Holders and accepted
appointment in the manner hereinafter  provided,  any Holder who has been a bona
fide Holder of a Security  for at least six months may, on behalf of himself and
all others similarly situated,  petition any court of competent jurisdiction for
the appointment of a successor Trustee.

     (f) The Company shall give notice of each  resignation  and each removal of
the Trustee and each  appointment  of a successor  Trustee to all Holders in the
manner  provided  in Section  106.  Each  notice  shall  include the name of the
successor  Trustee and the address of its Corporate  Trust Office.  

SECTION 611.  ACCEPTANCE OF APPOINTMENT BY SUCCESSOR.

     Every successor Trustee appointed hereunder shall execute,  acknowledge and
deliver to the Company and to the retiring Trustee an instrument  accepting such
appointment,  and thereupon the  resignation or removal of the retiring  Trustee
shall become effective and such successor Trustee, without any further act, deed
or  conveyance,  shall  become  vested with all the rights,  powers,  trusts and
duties of the retiring Trustee;  PROVIDED, that on request of the Company or the
successor  Trustee,  such retiring  Trustee shall,  upon payment of its charges,
execute and deliver an instrument transferring to such successor Trustee all the
rights,  powers  and  trusts of the  retiring  Trustee  and shall  duly  assign,
transfer  and deliver to such  successor  Trustee all property and money held by
such retiring Trustee hereunder. Upon request of any such successor Trustee, the
Company  shall  execute  any and all  instruments  required  to more  fully  and
certainly vest in and confirm to such successor Trustee all such rights,  powers
and trusts.

     No successor  Trustee  shall accept its  appointment  unless at the time of
such  acceptance  such  successor  Trustee shall be qualified and eligible under
this Article.

SECTION 612.  MERGER, CONVERSION, CONSOLIDATION OR SUCCESSION TO BUSINESS.

     Any  corporation  into which the Trustee may be merged or converted or with
which it may be  consolidated,  or any  corporation  resulting  from any merger,
conversion  or  consolidation  to which  the  Trustee  shall be a party,  or any
corporation  succeeding to all or substantially all the corporate trust business
of the Trustee,  shall be the successor of the Trustee hereunder,  provided such
corporation  shall be  otherwise  qualified  and  eligible  under this  Article,
without the  execution  or filing of any paper or any further act on the part of
any of the parties hereto. In

                                     -39-








case any Securities  shall have been  authenticated,  but not delivered,  by the
Trustee then in office, any successor by merger,  conversion or consolidation to
such  authenticating  Trustee  may adopt such  authentication  and  deliver  the
Securities so  authenticated  with the same effect as if such successor  Trustee
had itself authenticated such Securities.

SECTION 613.  PREFERENTIAL COLLECTION OF CLAIMS AGAINST COMPANY.
     If and when the  Trustee  shall be or become a creditor  of the Company (or
any other  obligor  upon the  Securities),  the Trustee  shall be subject to the
provisions of the Trust Indenture Act regarding the collection of claims against
the Company (or any such other obligor).


                               ARTICLE SEVEN

            Holders' Lists and Reports by Trustee and Company

SECTION 701.  COMPANY TO FURNISH TRUSTEE NAMES AND ADDRESSEES OF HOLDERS.

     The Company will furnish or cause to be furnished to the Trustee

     (a) quarterly,  within one Business Day prior to January 1, April 1, July 1
and October 1 of each year, a list,  in such form as the Trustee may  reasonably
require, of the names and addresses of the Holders as of a date not more than 15
days prior to the delivery thereof, and

     (b) at such other times as the  Trustee  may request in writing,  within 30
days after the  receipt by the  Company of any such  request,  a list of similar
form and  content as of a date not more than 15 days prior to the time such list
is furnished;

EXCLUDING from any such list names and addresses  received by the Trustee in its
capacity as  Security  Registrar  and  PROVIDED  that the  Company  shall not be
obligated to provide a list of Holders at any time such list of Holders does not
differ from the most recent list of Holders  given to the Trustee by the Company
or the Securities are represented by one or more Global Securities. 

SECTION 702.  PRESERVATION OF INFORMATION; COMMUNICATIONS TO HOLDERS.

     (a) The  Trustee  shall  preserve,  in as  current a form as is  reasonably
practicable,  the names and  addresses  of Holders  contained in the most recent
list  furnished  to the  Trustee as  provided  in Section  701 and the names and
addresses  of Holders  received  by the  Trustee  in its  capacity  as  Security
Registrar.  The  Trustee may  destroy  any list  furnished  to it as provided in
Section 701 upon receipt of a new list so furnished.

                                     -40-








     (b) The rights of Holders to communicate with other Holders with respect to
their rights under this Indenture or under the Securities, and the corresponding
rights and duties of the  Trustee,  shall be as provided by the Trust  Indenture
Act.

     (c) Every Holder of Securities,  by receiving and holding the same,  agrees
with the Company and the  Trustee  that  neither the Company nor the Trustee nor
any  agent  of  either  of them  shall  be held  accountable  by  reason  of any
disclosure of  information as to names and addresses of Holders made pursuant to
the Trust Indenture Act or this Indenture.

SECTION 703.  REPORTS BY TRUSTEE.

     (a) Within 60 days after  October 15 of each year,  commencing  October 15,
1996, the Trustee shall transmit by mail to the Holders such reports  concerning
the Trustee and its actions under this Indenture as may be required  pursuant to
the Trust Indenture Act in the manner provided pursuant thereto.

     (b) A copy of each such report shall,  at the time of such  transmission to
the  Holders,  be filed by the Trustee with each stock  exchange  upon which the
Securities are listed,  with the  Commission  and with the Company.  The Company
will notify the Trustee when the Securities are listed on any stock exchange.

SECTION 704.  REPORTS BY COMPANY.

     The Company shall file with the Trustee and the Commission, and transmit to
the Holders,  such information,  documents and other reports, and such summaries
thereof, as may be required pursuant to the Trust Indenture Act at the times and
in  the  manner  provided  pursuant  to  such  Act;  PROVIDED,   that  any  such
information,  documents  or reports  required  to be filed  with the  Commission
pursuant  to  Section  13 or 15(d) of the  Exchange  Act shall be filed with the
Trustee  within  15 days  after  the same is so  required  to be filed  with the
Commission.

     Delivery of such reports,  information  and documents to the Trustee is for
informational  purposes  only  and  the  Trustee's  receipt  of such  shall  not
constitute   constructive  notice  of  any  information   contained  therein  or
determinable  from  information  contained  therein,   including  the  Company's
compliance  with any of their  covenants  hereunder  (as to which the Trustee is
entitled to rely exclusively on Officers' Certificates).

     The  Company  shall  also  provide to the  Trustee  on a timely  basis such
information  as the  Trustee  requires to enable the Trustee to prepare and file
any form  required to be  submitted  by the Company  with the  Internal  Revenue
Service and the holders of the Preferred  Securities  relating to original issue
discount, including, without limitation, Form 1099-OID or any successor form.

                                     -41-








                                ARTICLE EIGHT

            Consolidation, Merger, Conveyance, Transfer or Lease

SECTION 801.  COMPANY MAY CONSOLIDATE, ETC., ONLY ON CERTAIN TERMS.

     The  Company  shall not  consolidate  with or merge  with or into any other
Person  or,   directly  or  indirectly,   convey,   transfer  or  lease  all  or
substantially all its assets substantially as an entirety to any Person, unless:

     (a) the Person  formed by such  consolidation  or into which the Company is
merged (if the  Company is not the  survivor)  or the Person  which  acquires by
conveyance,  transfer or lease,  all or  substantially  all the Company's assets
substantially  as an entirety  shall be a  corporation,  shall be organized  and
validly  existing  under the laws of the  United  States of  America,  any State
thereof or the District of Columbia and shall expressly  assume, by an indenture
supplemental  hereto,  executed and delivered to the Trustee, in form reasonably
satisfactory  to the Trustee,  the due and punctual  payment of the principal of
(and premium,  if any) and interest on all the Securities and the performance or
observance of every  covenant of this Indenture on the part of the Company to be
performed  or  observed  and  shall  have  provided  for  conversion  rights  in
accordance with Article Thirteen;

     (b)  immediately  after  giving  effect  to such  transaction,  no Event of
Default, and no event which, after notice or lapse of time or both, would become
an Event of Default, shall have happened and be continuing; and

     (c) the Company has delivered to the Trustee an Officers'  Certificate  and
an Opinion of Counsel,  each stating that, in their opinion, such consolidation,
merger,  conveyance,  transfer  or lease and,  if a  supplemental  indenture  is
required in  connection  with such  transaction,  such  supplemental  indenture,
comply with this Article and that all conditions  precedent  herein provided for
relating to such transaction have been complied with.

     This Section shall only apply to (i) a merger or consolidation in which the
Company is not the surviving  corporation,  and (ii) to conveyances,  leases and
transfers by the Company as transferor or lessor.

SECTION 802.  SUCCESSOR SUBSTITUTED.

     Upon any  consolidation of the Company with, or merger of the Company into,
any other Person or any  conveyance,  transfer or lease of all or  substantially
all the Company's assets substantially as an entirety in accordance with Section
801, the successor Person formed by such consolidation or into which the Company
is merged or to which such  conveyance,  transfer or lease is made shall succeed
to, and be  substituted  for,  and may  exercise  every  right and power of, the
Company under this Indenture  with the same effect as if such  successor  Person
had been named as the Company  herein,  and  thereafter the  predecessor  Person
shall be relieved of all  obligations and covenants under this Indenture and the
Securities.
                                     -42-








                                ARTICLE NINE

                          Supplemental Indentures

SECTION 901.  SUPPLEMENTAL INDENTURES WITHOUT CONSENT OF HOLDERS.

     Without the consent of any Holders, the Company, when authorized by a Board
Resolution,  and the Trustee,  at any time and from time to time, may enter into
one or more indentures supplemental hereto, in form satisfactory to the Trustee,
for any of the following purposes:

     (a) to evidence  the  succession  of another  Person to the Company and the
assumption by any such  successor of the covenants of the Company  herein and in
the Securities; or

     (b) to add to the  covenants of the Company for the benefit of the Holders,
or to surrender any right or power herein conferred upon the Company; or

     (c) to make  provision  with  respect to the  conversion  rights of Holders
pursuant to the requirements of Article Thirteen; or

     (d) to cure any ambiguity,  to correct or supplement  any provision  herein
which may be inconsistent  with any other provision herein, or to make any other
provisions  with respect to matters or questions  arising  under this  Indenture
which shall not be inconsistent with the provisions of this Indenture;

     (e) to comply with the requirements of the Commission in order to effect or
maintain the qualification of this Indenture under the Trust Indenture Act; or

     (f) to make provision for transfer  procedures,  certification,  book-entry
provisions,  the form of restricted  securities legends, if any, to be placed on
Securities,  and all  other  matters  required  pursuant  to  Section  305(b) or
otherwise necessary, desirable or appropriate in connection with the issuance of
Securities to holders of Preferred  Securities in the event of a distribution of
Securities by the Trust if a Special Event occurs and is continuing.

SECTION 902.  SUPPLEMENTAL INDENTURES WITH CONSENT OF HOLDERS.

     With the consent of the Holders of greater than 50% in principal  amount of
the Outstanding Securities,  by Act of said Holders delivered to the Company and
the Trustee, the Company, when authorized by a Board Resolution, and the Trustee
may enter into an indenture or indentures supplemental hereto for the purpose of
adding any  provisions  to or changing in any manner or  eliminating  any of the
provisions  of this  Indenture  or of  modifying in any manner the rights of the
Holders  under this  Indenture;  PROVIDED,  however,  that no such  supplemental
indenture shall,  without the consent of the Holder of each Outstanding Security
affected thereby,

                                     -43-








     (a) extend the Stated  Maturity of the principal of, or any  installment of
interest  (including  any  Additional  Payments or  Liquidated  Damages) on, any
Security,  or reduce the principal amount thereof,  or reduce the rate or extend
the time for payment of interest thereon  (including any Additional  Payments or
Liquidated Damages),  or reduce any premium payable upon the redemption thereof,
or change the place of payment  where,  or the coin or  currency  in which,  any
Security or interest  thereon is payable,  or impair the right to institute suit
for the enforcement of any such payment on or after the Stated Maturity  thereof
(or, in the case of redemption,  on or after the Redemption  Date), or adversely
affect the right to convert any Security as provided in Article Thirteen (except
as permitted by Section  901(c)) or modify the provisions of Article Twelve with
respect to the  subordination of the Notes in a manner adverse to the Holders in
any material respect,

     (b)  reduce  the  percentage  in  principal   amount  of  the   Outstanding
Securities,  the consent of whose Holders is required for any such  supplemental
indenture,  or the  consent  of whose  Holders  is  required  for any waiver (of
compliance  with  certain  provisions  of this  Indenture  or  certain  defaults
hereunder and their consequences) provided for in this Indenture, or

     (c) modify any of the provisions of this Section or Section 513,  except to
increase any such percentage or to provide that certain other provisions of this
Indenture cannot be modified or waived without the consent of the Holder of each
Outstanding Security affected thereby;  PROVIDED that if the Securities are held
by the Trust or a trustee of the Trust, such supplemental indenture shall not be
effective  until the holders of greater than 50% in liquidation  amount of Trust
Securities  shall  have  consented  to such  supplemental  indenture;  PROVIDED,
further,  that if the  consent of the  Holder of each  Outstanding  Security  is
required,  such  supplemental  indenture  shall not be  effective  as to a given
holder  of  Trust  Securities  of the  Trust  until  such  holder  of the  Trust
Securities of the Trust shall have consented to such supplemental indenture.

     Notwithstanding  the foregoing,  the Company may not amend the Indenture to
remove the  rights of holders of  Preferred  Securities  to  institute  a Direct
Action  pursuant to Section 516 without the consent of each Holder of  Preferred
Securities.

     It shall not be  necessary  for any Act of Holders  under  this  Section to
approve the particular form of any proposed supplemental indenture, but it shall
be sufficient if such Act shall approve the substance thereof.

     The Company may,  but shall not be obligated  to, fix a record date for the
purpose  of  determining  the  Persons  entitled  to  consent  to any  indenture
supplemental hereto. If a record date is fixed, the Holders on such record date,
or their duly designated  proxies,  and only such Persons,  shall be entitled to
consent  to such  supplemental  indenture,  whether or not such  Holders  remain
Holders  after such record date;  PROVIDED  that unless such consent  shall have
become  effective by virtue of the  requisite  percentage  having been  obtained
prior to the date which is 90 days  after such  record  date,  any such  consent
previously given shall automatically and without further action by any Holder be
canceled and of no further effect.
                                     -44-








SECTION 903.  EXECUTION OF SUPPLEMENTAL INDENTURES.

     In  executing,   or  accepting  the  additional   trusts  created  by,  any
supplemental indenture permitted by this Article or the modifications thereby of
the trusts created by this Indenture,  the Trustee shall be entitled to receive,
and  (subject  to Section  601) shall be fully  protected  in relying  upon,  an
Opinion of Counsel stating that the execution of such supplemental  indenture is
authorized  or  permitted by this  Indenture.  The Trustee may, but shall not be
obligated  to,  enter into any such  supplemental  indenture  which  affects the
Trustee's own rights, duties or immunities under this Indenture or otherwise.

SECTION 904.  EFFECT OF SUPPLEMENTAL INDENTURES.

     Upon the execution of any supplemental  indenture under this Article,  this
indenture  shall be  modified in  accordance  therewith,  and such  supplemental
indenture shall form a part of this Indenture for all purposes; and every Holder
of Securities  theretofore or thereafter  authenticated and delivered  hereunder
shall be bound thereby.

SECTION 905.  CONFORMITY WITH TRUST INDENTURE ACT.

     Every  supplemental  indenture  executed  pursuant  to this  Article  shall
conform to the  requirements  of the Trust  Indenture Act;  PROVIDED,  that this
requirement  shall not  constitute an admission or  acknowledgment  by any party
hereto that any  qualification  is required prior to the time this Indenture and
the Trustee are required by the Trust Indenture Act to be so qualified.  

SECTION 906. REFERENCE IN SECURITIES TO SUPPLEMENTAL INDENTURES.

     Securities   authenticated   and  delivered  after  the  execution  of  any
supplemental  indenture  pursuant to this  Article may, and shall if required by
the  Trustee,  bear a notation in form  approved by the Trustee as to any matter
provided for in such supplemental  indenture. If the Company shall so determine,
new Securities so modified as to conform,  in the opinion of the Trustee and the
Company, to any such supplemental  indenture may be prepared and executed by the
Company  and  authenticated  and  delivered  by  the  Trustee  in  exchange  for
Outstanding Securities.  Failure to undertake the foregoing shall have no effect
on such supplemental indenture.


                                  ARTICLE TEN

                  Covenants; Representations and Warranties

SECTION 1001.  PAYMENT OF PRINCIPAL AND INTEREST.

                                     -45-




     The Company  will duly and  punctually  pay the  principal  of and interest
(including any Additional  Payments and Liquidated Damages) on the Securities in
accordance with the terms of the Securities and this Indenture.

SECTION 1002.  MAINTENANCE OF OFFICE OR AGENCY.

     The Company will maintain in The City of New York an office or agency where
Securities may be presented or surrendered for payment,  where Securities may be
surrendered  for  registration  of transfer or  exchange  and where  notices and
demands to or upon the Company in respect of the  Securities  and this Indenture
may be served. The Company will give prompt written notice to the Trustee of the
location and any change in the location, of any such office or agency. If at any
time the Company  shall fail to maintain any such  required  office or agency or
shall fail to furnish the Trustee with the address thereof,  such presentations,
surrenders,  notices and demands  may be made or served at the  Corporate  Trust
Office of the Trustee,  and the Company  hereby appoint the Trustee as its agent
to receive all such presentations, surrenders, notices and demands.

     The Company may also from time to time  designate one or more other offices
or agencies  (in the United  States)  where the  Securities  may be presented or
surrendered  for any or all such purposes and may from time to time rescind such
designations; PROVIDED, however, that no such designation or rescission shall in
any manner  relieve  the  Company of its  obligations  to  maintain an office or
agency in the United  States for such  purposes.  The  Company  will give prompt
written  notice to the Trustee of any such  designation or rescission and of any
change in the location of any such other office or agency.

SECTION 1003.  MONEY FOR SECURITY PAYMENTS TO BE HELD IN TRUST.

     If the Company shall at any time act as its own Paying  Agent,  it will, on
or  before  each  due  date  of  the  principal  of or  interest  on  any of the
Securities,  segregate and hold in trust for the benefit of the Persons entitled
thereto a sum  sufficient to pay the principal or interest so becoming due until
such sums  shall be paid to such  Persons  or  otherwise  disposed  of as herein
provided and will  promptly  notify the Trustee of their action or failure so to
act.

     Whenever  the Company  shall have one or more Paying  Agents other than the
Company,  the  Company  will,  prior  to each due  date of the  principal  of or
interest on any Securities,  deposit with a Paying Agent a sum sufficient to pay
such  amount,  such sum to be held as provided by the Trust  Indenture  Act, and
(unless such Paying Agent is the Trustee) the Company will  promptly  notify the
Trustee of such action or failure so to act.

     The Company  will cause each Paying Agent other than the Trustee to execute
and deliver to the Trustee an  instrument in which such Paying Agent shall agree
with the Trustee,  subject to the  provisions of this Section,  that such Paying
Agent will (i) comply with the provisions of the Trust  Indenture Act applicable
to it as a Paying  Agent and (ii) during the  continuance  of any default by the
Company (or any other obligor upon the Securities) in the making of any payment

                                     -46-








in respect of the Securities, upon the written request of the Trustee, forthwith
pay to the Trustee all sums held in trust by such Paying Agent as such.

     The Company may at any time, for the purpose of obtaining the  satisfaction
and  discharge  of this  Indenture  or for any  other  purpose,  pay,  or by the
Company's  Order direct any Paying Agent to pay, to the Trustee all sums held in
trust by the Company or such Paying  Agent,  such sums to be held by the Trustee
upon the same terms as those  upon  which such sums were held by the  Company or
such Paying  Agent;  and,  upon such payment by any Paying Agent to the Trustee,
such Paying Agent shall be released from all further  liability  with respect to
such money.

     Any money  deposited with the Trustee or any Paying Agent,  or then held by
the  Company,  in trust for the payment of the  principal  of or interest on any
Security and remaining  unclaimed for two years after such principal or interest
has become  due and  payable  shall be paid to the  Company  upon the  Company's
Request,  or (if then held by the Company) shall be discharged  from such trust;
and the Holder of any such Security shall  thereafter,  as an unsecured  general
creditor,  look only to the  Company for payment  thereof,  unless an  abandoned
property law designates another person, and all liability of the Trustee or such
Paying Agent with respect to such trust money,  and all liability of the Company
as trustee thereof, shall thereupon cease.

SECTION 1004.  STATEMENT BY OFFICERS AS TO DEFAULT.

     The Company will  deliver to the Trustee,  within 120 days after the end of
each fiscal year of the  Company  ending  after the date  hereof,  an  Officers'
Certificate, stating whether or not to the best knowledge of the signers thereof
the  Company is in  default  in the  performance  and  observance  of any of the
material terms,  provisions and conditions of this Indenture  (without regard to
any period of grace or requirement  of notice  provided  hereunder)  and, if the
Company  shall be in default,  specifying  all such  defaults and the nature and
status thereof of which they may have knowledge.

SECTION 1005. LIMITATION ON DIVIDENDS;  TRANSACTIONS WITH AFFILIATES;  COVENANTS
              AS TO THE TRUST.

     (a) The Company  covenants that so long as the Securities are  Outstanding,
if (i) there  shall  have  occurred  and be  continuing  any event that with the
giving  of notice or the  lapse of time or both,  would  constitute  an Event of
Default, (ii) the Company shall be in default with respect to its payment of any
obligations  under the Guarantee,  or (iii) the Company has exercised its option
to defer interest  payments on the Securities by extending the interest  payment
period and such period, or any extension thereof, shall be continuing,  then the
Company shall not, and shall not allow any of its Subsidiaries (other than, with
respect to clause (x) below only, its wholly-owned Subsidiaries) to, (x) declare
or pay dividends on, make distributions with respect to, or redeem,  purchase or
acquire, or make a liquidation payment with respect to, any of its capital stock
(except for (i) dividends or  distributions  in shares of Common Stock on Common
Stock or on the Preferred Stock, (ii) purchases or acquisitions of

                                     -47-




shares of Common Stock made in connection with any employee  benefit plan of the
Company or its  subsidiaries  in the ordinary  course of business or pursuant to
employment  agreements  with  officers  or  employees  of  the  Company  or  its
subsidiaries entered into in the ordinary course of business, provided that such
repurchases by the Company made from officers or employees of the Company or its
subsidiaries  pursuant to employment  agreements shall be made at a price not to
exceed the market value on the date of any such  repurchase and shall not exceed
$1  million  in the  aggregate  for  all  such  employees  and  officers,  (iii)
conversions  or  exchanges of shares of Common Stock of one class into shares of
Common  Stock of another  class or (iv)  purchases  of  fractional  interests in
shares of the  Company's  capital stock  pursuant to the  conversion or exchange
provisions of any of the Company's securities being converted or exchanged), (y)
make any  payment  of  interest,  principal  or  premium,  if any,  on or repay,
repurchase or redeem any debt securities  issued by the Company that rank junior
to or PARI PASSU with the Securities  (except by conversion into or exchange for
shares of its capital stock),  and (z) make any guarantee  payments with respect
to the foregoing (other than such payments made pursuant to the Guarantee).

     (b) The Company  also  covenants  and agrees (i) that it shall  directly or
indirectly  maintain  100%  ownership  of the  Common  Securities  of the Trust;
PROVIDED,  HOWEVER,  that any permitted  successor of the Company  hereunder may
succeed to the Company's  ownership of such Common  Securities (ii) NOT TO CAUSE
OR PERMIT THE  DISSOLUTION,  WINDING-UP OR TERMINATION  OF THE TRUST,  EXCEPT IN
CONNECTION  WITH A  DISTRIBUTION  OF THE  SECURITIES TO THE HOLDERS OF PREFERRED
SECURITIES IN  LIQUIDATION OF THE TRUST OR IN CONNECTION  WITH CERTAIN  MERGERS,
CONSOLIDATIONS  OR AMALGAMATIONS  PERMITTED BY THE DECLARATION AND (iii) that it
shall use its reasonable  efforts,  consistent  with the terms and provisions of
the  Declaration,  to cause the Trust (x) to remain a statutory  business trust,
except in connection  with the  distribution of the Securities to the holders of
Trust Securities in liquidation of the Trust, the redemption of all of the Trust
Securities of the Trust, or certain mergers,  consolidations  or  amalgamations,
each as  permitted  by the  Declaration,  and (y) to  otherwise  continue  to be
classified as a grantor trust for United States Federal income tax purposes.

SECTION 1006.  PAYMENT OF EXPENSES OF THE TRUST.

     In connection with the offering, sale and issuance of the Securities to the
Property  Trustee in  connection  with the sale of the Trust  Securities  by the
Trust, the Company shall be responsible for the payment of:

     (a) all  costs,  fees  and  expenses  relating  to the  offering,  sale and
issuance of the  Securities,  including  commissions  to the Initial  Purchasers
payable pursuant to the Purchase Agreement and compensation of the Trustee under
the Indenture in accordance with the provisions of Section 607 of the Indenture;

     (b) all  debts  and  obligations  (other  than  with  respect  to the Trust
Securities) of the Trust,  all costs and expenses of the Trust  (including,  but
not limited to, costs and expenses  relating to the  organization  of the Trust,
the offering, sale and issuance of the Trust Securities

                                     -48-








(including commissions to the Initial Purchasers in connection  therewith),  the
fees and expenses of the Property  Trustee and the Delaware  Trustee  (including
the payment of counsel fees and  expenses),  the costs and expenses  relating to
the operation of the Trust, including without limitation,  costs and expenses of
accountants,  attorneys,  statistical  or  bookkeeping  services,  expenses  for
printing and engraving and computing or accounting  equipment,  paying agent(s),
registrar(s),  transfer  agent(s),  duplicating,  travel and telephone and other
telecommunications  expenses and costs and expenses  incurred in connection with
the acquisition, financing and disposition of Trust assets); and

     (c) all taxes (other than United States  withholding taxes  attributable to
the Trust or its assets) and all liabilities, costs and expenses with respect to
such taxes of the Trust.

SECTION 1007.  REGISTRATION RIGHTS.

     The holders of the Preferred Securities,  the Securities, the Guarantee and
the  shares of Common  Stock of the  Company  issuable  upon  conversion  of the
Securities  (collectively,  the  "Registrable  Securities")  are entitled to the
benefits of a Registration Rights Agreement,  dated as of October 2, 1996, among
the Company and the Initial  Purchasers (the "Registration  Rights  Agreement").
Pursuant to the Registration  Rights  Agreement,  the Company has agreed for the
benefit of the holders of Registrable  Securities that (i) it will, at its cost,
within 75 calendar days after the date of issuance of the Preferred  Securities,
file a shelf registration  statement (the "Shelf  Registration  Statement") with
the Commission with respect to the resales of the Registrable  Securities,  (ii)
it will use reasonable efforts to cause such Shelf Registration  Statement to be
declared  effective by the Commission within 135 calendar days after the date of
issuance of the Registrable Securities and (iii) the Company will use reasonable
efforts to maintain such Shelf  Registration  Statement  continuously  effective
under the Securities Act until the third anniversary of the effectiveness of the
Shelf  Registration  Statement  or  such  earlier  date  as is  provided  in the
Registration Rights Agreement (the "Effectiveness Period"). Reference is made to
the Registration  Rights Agreement for a description of, among other things, the
circumstances under which a "Registration Default" may be declared if such Shelf
Registration  Statement is not filed or declared  effective within the specified
periods of time, and additional interest  "Liquidated Damages" may accrue and by
payable on the  Securities  as a result of such a  Registration  Default,  which
provisions are hereby incorporated herein by such reference.

     SECTION 1008.  RULE 144A INFORMATION REQUIREMENT.

     During the period beginning on the latest date of the original  issuance of
the Securities and ending on Resale Restriction  Termination Date (as defined in
the legend set forth in Section 202),  the Company  covenants and agrees that it
shall, during any period in which it is not subject to Section 13 or 15(d) under
the  Exchange  Act,  make  available  to any  holder  or  beneficial  holder  of
Securities or any Common Stock issued upon conversion  thereof which continue to
be restricted securities in connection with any sale thereof and any prospective
purchaser  of  Securities  or such Common  Stock from such holder or  beneficial
holder,  the  information   required  pursuant  to  Rule  144A(d)(4)  under  the
Securities Act upon the request of
                                     -49-








any holder or  beneficial  holder of the  Securities or such Common Stock and it
will  take  such  further  action as any  holder  or  beneficial  holder of such
Securities  or such  Common  Stock may  reasonably  request,  all to the  extent
required  from time to time to enable such holder or  beneficial  holder to sell
its  Securities or Common Stock without  registration  under the  Securities Act
within the  limitation of the exemption  provided by Rule 144A, as such Rule may
be amended from time to time.  Upon the request of any holder or any  beneficial
holder of the Securities or such Common Stock,  the Company will deliver to such
holder a written statement as to whether it has complied with such requirements.

     SECTION 1009.  LISTING THE SECURITIES.

     In the  event  that  the  Securities  are  distributed  to the  holders  of
Preferred  Securities,  the  Company  will  use its  best  efforts  to list  the
Securities  on the  NYSE  or on  such  other  national  securities  exchange  or
automated quotation system on which the Preferred  Securities are then listed or
quoted.


                                 ARTICLE ELEVEN

                            Redemption of Securities

SECTION 1101.  RIGHT OF REDEMPTION.

     (a) The Securities may be redeemed at the election of the Company, in whole
or in part,  at any time or from time to time  after  October  5,  1999,  at the
Redemption  Prices set forth in Section 1109 below upon not less than 30 or more
than  60  days'  notice.  The  Company  may not  redeem  fewer  than  all of the
outstanding  Securities  unless all accrued and unpaid  Distributions  have been
paid on all Securities for all quarterly  Distribution periods terminating on or
before  the date of  redemption.  The Trust may not  redeem  fewer  than all the
outstanding  Securities  unless all accrued and unpaid  Distributions  have been
paid on all Securities for all quarterly  Distribution periods terminating on or
before the date of redemption.

     (b) As set forth more fully in Section 1110 below,  the Securities may also
be redeemed,  in whole (but not in part),  at the election of the Company at any
time within 90 days following the occurrence of a Tax Event (in whole but not in
part); PROVIDED, HOWEVER, that if, at the time there is available to the Company
or the Trust the  opportunity to eliminate,  within such 90-day period,  the Tax
Event by  taking  some  ministerial  action,  such as filing a form or making an
election,  or pursuing some other similar reasonable measure,  which in the sole
judgment of the Company  has or will cause no adverse  effect on the Trust,  the
holders of the Trust Securities or the Company or will involve no material cost,
then the Company or the Trust shall pursue such measure in lieu of redemption.

SECTION 1102.  APPLICABILITY OF ARTICLE.

                                     -50-








     Redemption of  Securities  at the election of the Company,  as permitted by
Section 1101, shall be made in accordance with such provision and this Article.

SECTION 1103.  ELECTION TO REDEEM; NOTICE TO TRUSTEE.

     The election of the Company to redeem  Securities  pursuant to Section 1101
shall be  evidenced  by a Board  Resolution.  In case of any  redemption  at the
election of the Company, the Company shall, at least 30 days and no more than 60
days prior to the  Redemption  Date fixed by the Company,  notify the Trustee in
writing of such Redemption Date and of the principal  amount of Securities to be
redeemed  and  provide a copy of the  notice of  redemption  given to Holders of
Securities to be redeemed pursuant to Section 1104.

SECTION 1104.  SELECTION BY TRUSTEE OF SECURITIES TO BE REDEEMED.

     If less than all the Securities are to be redeemed  (unless such redemption
affects only a single Security),  the particular Securities to be redeemed shall
be selected not more than 60 days prior to the  Redemption  Date by the Trustee,
from the Outstanding  Securities not previously  called for redemption,  by such
method as the Trustee shall deem fair and  appropriate and which may provide for
the selection for redemption of portions (equal to $50 or any integral  multiple
thereof) of the principal amount of the Securities.

     The Trustee shall promptly  notify the Company in writing of the Securities
selected for redemption as aforesaid and, in case of any Securities selected for
partial redemption as aforesaid, the principal amount thereof to be redeemed.

     The provisions of the two preceding paragraphs shall not apply with respect
to any redemption affecting only a single Security,  whether such Security is to
be redeemed in whole or in part. In the case of any such redemption in part, the
unredeemed  portion  of the  principal  amount  of the  Security  shall be in an
authorized  denomination  (which  shall not be less than the minimum  authorized
denomination) for such Security.

     For all purposes of this Indenture,  unless the context otherwise requires,
all  provisions  relating to the redemption of Securities  shall relate,  in the
case of any  Securities  redeemed or to be redeemed only in part, to the portion
of the principal amount of such Securities which has been or is to be redeemed.

SECTION 1105.  NOTICE OF REDEMPTION.

     Notice of redemption  shall be given by first class mail,  postage prepaid,
mailed not less than 30 nor more than 60 days prior to the  Redemption  Date, to
each Holder of Securities to be redeemed,  at such Holder's address appearing in
the Security Register.

     All notices of  redemption  shall  identify the  Securities  to be redeemed
(including, if relevant, the CUSIP or ISIN number) and shall state:

                                     -51-








     (a)  the Redemption Date,

     (b)  the Redemption Price,

     (c) that on the Redemption  Date the  Redemption  Price will become due and
payable upon each such  Security to be redeemed and that  interest  thereon will
cease to accrue on and after said date, and

     (d) the place or places where such  Securities  are to be  surrendered  for
payment of the Redemption Price.

     Notice of  redemption  of  Securities to be redeemed at the election of the
Company  shall be given by the  Company  or, at the  Company's  Request,  by the
Trustee in the name and at the expense of the Company.

SECTION 1106.  DEPOSIT OF REDEMPTION PRICE.

     On or prior to any  Redemption  Date,  the Company  shall  deposit with the
Trustee or with a Paying  Agent (or,  if the Company is acting as its own Paying
Agent,  segregate  and hold in trust as provided  in Section  1003) an amount of
money  sufficient to pay the Redemption  Price of, and (except if the Redemption
Date shall be an Interest  Payment Date) accrued interest on, all the Securities
which are to be redeemed on that date.

     If any Security  called for  redemption is converted,  any money  deposited
with the Trustee or with any Paying Agent or so segregated and held in trust for
the  redemption  of such Security  shall  (subject to any right of the Holder of
such Security or any Predecessor Security to receive interest as provided in the
last paragraph of Section 307) be paid to the Company upon the Company's Request
or, if then held by the Company, shall be discharged from such trust.

SECTION 1107.  SECURITIES PAYABLE ON REDEMPTION DATE.

     Notice of redemption  having been given as aforesaid,  the Securities so to
be  redeemed  shall,  on the  Redemption  Date,  become  due and  payable at the
Redemption  Price  therein  specified,  and from and after such date (unless the
Company  shall  default  in the  payment  of the  Redemption  Price and  accrued
interest) such  Securities  shall cease to bear interest.  Upon surrender of any
such Security for redemption in accordance with said notice, such Security shall
be paid by the Company at the Redemption  Price,  together with accrued interest
(including Additional Payments and Liquidated Damages, if any) to the Redemption
Date; PROVIDED,  however, that installments of interest whose Stated Maturity is
on or prior to the  Redemption  Date  shall be  payable  to the  Holders of such
Securities,  or one or more  Predecessor  Securities,  registered as such at the
close of business on the relevant  Record  Dates  according to the terms and the
provisions of Section 307.

                                     -52-








     If any Security  called for redemption  shall not be so paid upon surrender
thereof for redemption,  the principal shall, until paid, bear interest from the
Redemption Date at the rate borne by the Security.

SECTION 1108.  SECURITIES REDEEMED IN PART.

     In the event of any  redemption in part,  the Company shall not be required
to (i) issue,  register the transfer of or exchange any Security during a period
beginning at the opening of business 15 days before any selection for redemption
of Securities  and ending at the close of business on the earliest date on which
the relevant notice of redemption is deemed to have been given to all holders of
Securities  to be so redeemed and (ii)  register the transfer of or exchange any
Securities  so  selected  for  redemption,  in whole or in part,  except for the
unredeemed portion of any Securities being redeemed in part.

     Any Security which is to be redeemed only in part shall be surrendered at a
place of payment therefor (with, if the Company or the Trustee so requires,  due
endorsement by, or a written  instrument of transfer in form satisfactory to the
Company and the Trustee  duly  executed  by, the Holder  thereof or his attorney
duly  authorized  in writing),  and the Company shall  execute,  and the Trustee
shall  authenticate  and make  available  for  delivery  to the  Holder  of such
Security without service charge, a new Security or Securities, of any authorized
denomination as requested by such Holder, in aggregate principal amount equal to
and in exchange for the  unredeemed  portion of the principal of the Security so
surrendered.

SECTION 1109.  OPTIONAL REDEMPTION.

     (a) The Company shall have the right to redeem the Securities,  in whole or
in part,  at any time or from time to time on or after  October 5, 1999 upon not
less than 30 nor more than 60 days' notice,  at a redemption  price equal at the
following optional redemption prices (expressed as a percentage of the principal
amount of Securities) if redeemed during the 12-month period beginning October 1
of the respective years shown below (October 5, in the case of 1999):

                                           Percentage of
                  Year                 Principal Year Amount
          --------------------         ---------------------
          1999 . . . . . . . . . . . . . . . 104.725%
          2000 . . . . . . . . . . . . . . . 104.050
          2001 . . . . . . . . . . . . . . . 103.375
          2002 . . . . . . . . . . . . . . . 102.700
          2003 . . . . . . . . . . . . . . . 102.025
          2004 . . . . . . . . . . . . . . . 101.350
          2005 . . . . . . . . . . . . . . . 100.675
          2006 and thereafter. . . . . . . . 100.000

                                     -53-








plus  any  accrued  and  unpaid  interest,  including  Additional  Payments  and
Liquidated Damages, if any, to the Redemption Date.

Any  redemption  pursuant  to this  Section  1109 shall be made  pursuant to the
provisions of Sections 1101 through 1108 hereof.

     (b) If a partial redemption of the Securities would result in the delisting
of the  Preferred  Securities  issued by the Trust from any national  securities
exchange or other organization on which the Preferred Securities are listed, the
Company  shall not be permitted to effect such partial  redemption  and may only
redeem the Securities in whole.

SECTION 1110.  TAX EVENT REDEMPTION.

     If a Tax Event has occurred and is continuing and:

     (a)  The Company has received a Redemption Tax Opinion; or

     (b) after receiving a Dissolution Tax Opinion,  the Regular  Trustees shall
have been informed by tax counsel  rendering the  Dissolution Tax Opinion that a
No Recognition  Opinion cannot be delivered to the Trust, then,  notwithstanding
Section 1109(a) but subject to Section 1109(b), the Company shall have the right
upon not less than 30 days nor more than 60 days  notice to the  Holders  of the
Securities  to redeem the  Securities in whole (but not in part) for cash at the
redemption  price that would  then be  applicable  in  accordance  with  Section
1109(a) (or, in the case of the period commencing on the date of issuance of the
Securities  through  October 4, 1997 and the  twelve  month  periods  commencing
October 5, 1997 and  October 5, 1998,  the  product of  106.750%,  106.075%  and
105.400%,  respectively,  times  $50),  in each case  plus  accrued  and  unpaid
interest and Additional  Payments and Liquidated Damages, if any, within 90 days
following  the  occurrence  of such Tax Event (the "90-Day  Period");  PROVIDED,
HOWEVER, that if, at the time there is available to the Company or the Trust the
opportunity to eliminate within the 90-Day Period,  the Tax Event by taking some
ministerial action  ("Ministerial  Action"),  such as filing a form or making an
election,  or pursuing some other similar  reasonable measure which, in the sole
judgment of the Company, has or will cause no adverse effect on the Company, the
Trust or the holders of the Trust  Securities and will involve no material cost,
the Company or the Trust shall pursue such  Ministerial  Action or other measure
in lieu of  redemption,  and PROVIDED,  FURTHER,  that the Company shall have no
right to redeem  the  Securities  while the Trust is  pursuing  any  Ministerial
Action. The redemption payment, including accrued and unpaid interest, including
Additional  Payments,  if any, shall be made prior to 12:00 noon, New York time,
on the date of such  redemption  or such earlier time as the Company  determine,
PROVIDED,  that the Company shall deposit with the Trustee an amount  sufficient
to make such  redemption  payment  by 10:00  a.m.  on the date  such  redemption
payment is to be made.

SECTION 1111.  NO SINKING FUND.

                                     -54-








     The Securities are not entitled to the benefit of any sinking fund.

                                 ARTICLE TWELVE

                           Subordination of Securities

SECTION 1201.  AGREEMENT TO SUBORDINATE.

     The Company  covenants  and agrees,  and each Holder of  Securities by such
Holder's  acceptance thereof likewise covenants and agrees,  that all Securities
shall be issued  subject to the  provisions  of this  Article  Twelve;  and each
Holder of a Security, whether upon original issue or upon transfer or assignment
thereof,  accepts and agrees to be bound by such provisions.  The payment by the
Company of the principal of, premium, if any, and interest (including Additional
Payments) on all Securities  issued  hereunder  shall,  to the extent and in the
manner  hereinafter set forth, be subordinated and junior in right of payment to
the prior  payment  in full of all  existing  and  future  Senior  Indebtedness,
whether  outstanding  at the  date of this  Indenture  or  thereafter  incurred;
provided  however,  that no provision of this Article  Twelve shall  prevent the
occurrence of any default or Event of Default hereunder.

SECTION 1202.  DEFAULT ON SENIOR INDEBTEDNESS.

     In the event and during the  continuation  of any default by the Company in
the payment of  principal,  premium,  interest  or any other  payment due on any
Senior Indebtedness  continuing beyond the period of grace, if any, specified in
the  instrument  evidencing  such  Senior  Indebtedness,  unless  and until such
default  shall have been cured or waived or shall have  ceased to exist,  and in
the event that the  maturity  of any Senior  Indebtedness  has been  accelerated
because of a default,  then no payment shall be made by the Company with respect
to the principal of (including redemption payments, if any), premium, if any, or
interest on the Securities.

     In the event that,  notwithstanding  the  foregoing,  any payment  shall be
received  by the  Trustee  when such  payment  is  prohibited  by the  preceding
paragraph of this  Section  1202,  such  payment  shall be held in trust for the
benefit  of,  and shall be paid over or  delivered  to,  the  holders  of Senior
Indebtedness or their respective representatives,  or to the trustee or trustees
under any indenture  pursuant to which any of such Senior  Indebtedness may have
been issued,  as their respective  interests may appear,  but only to the extent
that  the  holders  of the  Senior  Indebtedness  (or  their  representative  or
representatives  or a trustee)  notify the Trustee in writing  within 90 days of
such  payment of the amounts then due and owing on the Senior  Indebtedness  and
only the amounts  specified  in such notice to the Trustee  shall be paid to the
holders of Senior Indebtedness.

SECTION 1203.  LIQUIDATION; DISSOLUTION; BANKRUPTCY.


                                     -55-








     Upon any payment by the Company or distribution of assets of the Company of
any kind or character,  whether in cash,  property or  securities,  to creditors
upon any  dissolution  or winding up or  liquidation  or  reorganization  of the
Company,  whether  voluntary  or  involuntary,  or  in  bankruptcy,  insolvency,
receivership or other  proceedings,  all principal of, and premium,  if any, and
interest due or to become due on, all Senior  Indebtedness  must be paid in full
before any payment is made on account of the principal (and premium,  if any) or
interest  on the  Securities;  and upon any such  dissolution  or  winding up or
liquidation or  reorganization,  any payment by the Company,  or distribution of
assets of the  Company of any kind or  character,  whether in cash,  property or
securities,  to which the Holders or the Trustee  would be entitled,  except for
the  provisions of this Article  Twelve,  shall be paid by the Company or by any
receiver,  trustee in  bankruptcy,  liquidating  trustee,  agent or other Person
making such payment or  distribution,  or by the Holders or by the Trustee under
this  Indenture  if  received  by them or it,  directly to the holders of Senior
Indebtedness (pro rata to such holders on the basis of the respective amounts of
Senior Indebtedness held by such holders, as calculated by the Company) or their
representative  or  representatives,  or to the  trustee or  trustees  under any
indenture pursuant to which any instruments  evidencing such Senior Indebtedness
may have been issued,  as their respective  interests may appear,  to the extent
necessary to pay such Senior  Indebtedness  in full, in money or money's  worth,
after giving  effect to any  concurrent  payment or  distribution  to or for the
holders of such Senior Indebtedness,  before any payment or distribution is made
to the Holders or to the Trustee.

     In  the  event  that,   notwithstanding  the  foregoing,   any  payment  or
distribution of assets of the Company of any kind or character, whether in cash,
property or securities,  prohibited by the  foregoing,  shall be received by the
Trustee  or the  Holders  before  all Senior  Indebtedness  is paid in full,  or
provision is made for such payment in money in accordance  with its terms,  such
payment or  distribution  shall be held in trust for the benefit of and shall be
paid  over  or  delivered  to  the  holders  of  Senior  Indebtedness  or  their
representative  or  representatives,  or to the  trustee or  trustees  under any
indenture pursuant to which any instruments  evidencing such Senior Indebtedness
may have been issued,  and their respective  interests may appear, as calculated
by the  Company,  for  application  to the  payment of all  Senior  Indebtedness
remaining unpaid to the extent necessary to pay such Senior Indebtedness in full
in money in accordance  with its terms,  after giving  effect to any  concurrent
payment or distribution to or for the holders of such Senior Indebtedness.

     For  purposes  of this  Article  Twelve,  the  words,  "cash,  property  or
securities"  shall not be deemed to  include  shares of stock of the  Company as
reorganized or readjusted, or securities of the Company or any other corporation
provided for by a plan of reorganization  or readjustment,  the payment of which
is  subordinated  at least to the extent  provided in this  Article  Twelve with
respect to the Securities to the payment of all Senior Indebtedness which may at
the time be outstanding;  provided, that (i) such Senior Indebtedness is assumed
by the new  corporation,  if any,  resulting  from  any such  reorganization  or
readjustment, and (ii) the rights of the holders of such Senior Indebtedness are
not,  without the consent of such  holders,  altered by such  reorganization  or
readjustment.  The  consolidation  of the  Company  with,  or the  merger of the
Company with or into,  another  Person or the  liquidation or dissolution of the
Company


                                     -56-








following  the  conveyance,  transfer or lease of all or  substantially  all its
properties and assets on a  consolidated  basis to another Person upon the terms
and  conditions  provided  for in  Article  Eight  hereof  shall not be deemed a
dissolution,  winding up, liquidation or reorganization for the purposes of this
Section  1203 if  such  other  Person  shall,  as a part of such  consolidation,
merger"  conveyance,  transfer or lease,  comply with the  conditions  stated in
Article  Eight  hereof.  Nothing in Section  1202 or in this  Section 1203 shall
apply to claims of, or payments to, the Trustee under or pursuant to Section 607
hereof.

SECTION 1204.  SUBROGATION.

     Subject to the  payment in full of all Senior  Indebtedness,  the rights of
the  Holders  shall be  subrogated  to the rights of the  holders of such Senior
Indebtedness  to  receive  payments  or  distributions  of  cash,   property  or
securities  of the  Company,  as the  case  may be,  applicable  to such  Senior
Indebtedness  until the principal of (and premium,  if any,) and interest on the
Securities shall be paid in full; and, for the purposes of such subrogation,  no
payments or  distributions  to the holders of such  Senior  Indebtedness  of any
cash,  property  or  securities  to which the  Holders or the  Trustee  would be
entitled except for the provisions of this Article  Twelve,  and no payment over
pursuant to the provisions of this Article Twelve,  to or for the benefit of the
holders of such Senior Indebtedness by Holders or the Trustee, shall, as between
the Company,  its creditors other than holders of Senior  Indebtedness,  and the
Holders,  be deemed to be a payment  by the  Company  to or on  account  of such
Senior Indebtedness. It is understood that the provisions of this Article Twelve
are and are intended  solely for the purposes of defining the relative rights of
the Holders, on the one hand, and the holders of such Senior Indebtedness on the
other hand.

     Nothing  contained in this Article Twelve or elsewhere in this Indenture or
in the  Securities is intended to or shall impair,  as between the Company,  its
creditors other than the holders of Senior  Indebtedness,  and the Holders,  the
obligation of the Company,  which is absolute and  unconditional,  to pay to the
Holders the principal of (and premium, if any) and interest on the Securities as
and when the same shall become due and payable in  accordance  with their terms,
or is  intended  to or shall  affect  the  relative  rights of the  Holders  and
creditors of the  Company,  as the case may be, other than the holders of Senior
Indebtedness,  nor shall anything  herein or therein  prevent the Trustee or the
Holder from exercising all remedies  otherwise  permitted by applicable law upon
default under this Indenture,  subject to the rights, if any, under this Article
Twelve of the holders of such Senior  Indebtedness in respect of cash,  property
or securities of the Company,  as the case may be, received upon the exercise of
any such remedy.

     Upon any payment or  distribution  of assets of the Company  referred to in
this Article Twelve, the Trustee,  subject to the provisions of Section 603, and
the  Holders,  shall be  entitled  to rely upon any order or decree  made by any
court  of  competent  jurisdiction  in  which  such  dissolution,   winding  up,
liquidation or reorganization  proceedings are pending,  or a certificate of the
receiver,  trustee in  bankruptcy,  liquidation  trustee,  agent or other Person
making such payment or distribution, delivered to the Trustee or to the Holders,
for the purposes of  ascertaining  the Persons  entitled to  participate in such
distribution, the holders of the Senior


                                     -57-








Indebtedness  and other  indebtedness  of the  Company,  as the case may be, the
amount  thereof or payable  thereon,  the amount or amounts paid or  distributed
thereon and all other facts pertinent thereto or to this Article Twelve. 

SECTION 1205. TRUSTEE TO EFFECTUATE SUBORDINATION.

     Each Holder by such Holder's  acceptance thereof authorizes and directs the
Trustee  on such  Holder's  behalf to take such  action as may be  necessary  or
appropriate to effectuate the subordination  provided in this Article Twelve and
appoints  the  Trustee as such  Holder's  attorney-in-fact  for any and all such
purposes.

SECTION 1206.  NOTICE BY THE COMPANY.

     The Company shall give prompt  written  notice to a Responsible  Officer of
the Trustee of any fact known to the Company which would  prohibit the making of
any payment of monies to or by the Trustee in respect of the Securities pursuant
to the provisions of this Article Twelve. Notwithstanding the provisions of this
Article Twelve or any other provision of this  Indenture,  the Trustee shall not
be charged with knowledge of the existence of any facts which would prohibit the
making  of  any  payment  of  monies  to or by the  Trustee  in  respect  of the
Securities pursuant to the provision of this Article Twelve,  unless and until a
Responsible Officer of the Trustee shall have received written notice thereof at
the  Corporate  Trust  Office of the  Trustee  from the  Company  or a holder or
holders of Senior  Indebtedness  or from any  trustee  therefor;  and before the
receipt of any such written  notice,  the Trustee,  subject to the provisions of
Section  603 hereof,  shall be  entitled in all  respects to assume that no such
facts exist; provided,  however, that if the Trustee shall not have received the
notice provided for in this Section 1206 at least two Business Days prior to the
date upon which by the terms hereof any money may become payable for any purpose
(including, without limitation, the payment of the principal of (and premium, if
any) or  interest on any  Security),  then,  anything  herein  contained  to the
contrary  notwithstanding,  the Trustee  shall have full power and  authority to
receive  such  money and to apply the same to the  purposes  for which they were
received,  and shall not be affected by any notice to the contrary  which may be
received by it within two Business Days prior to such date.

     The Trustee, subject to the provisions of Section 603, shall be entitled to
rely on the delivery to it of a written notice by a Person representing  himself
to be a holder of Senior Indebtedness (or a trustee on behalf of such holder) to
establish  that  such  notice  has  been  given  by  a  holder  of  such  Senior
Indebtedness or a trustee on behalf of any such holder or holders.  In the event
that the Trustee determines in good faith that further evidence is required with
respect  to the  right of any  Person  as a holder  of  Senior  Indebtedness  to
participate in any payment or distribution  pursuant to this Article Twelve, the
Trustee  may  request  such  Person  to  furnish   evidence  to  the  reasonable
satisfaction of the Trustee as to the amount of Senior Indebtedness held by such
Person,  the extent to which such  Person is  entitled  to  participate  in such
payment  or  distribution  and any other  facts  pertinent  to the right of such
Person under this Article


                                     -58-








Twelve,  and,  if such  evidence  is not  furnished,  the  Trustee may defer any
payment to such Person pending  judicial  determination  as to the right of such
Person to receive such payment.

SECTION 1207.  RIGHTS OF THE TRUSTEE; HOLDERS OF SENIOR INDEBTEDNESS.

     The Trustee in its individual  capacity shall be entitled to all the rights
set forth in this Article  Twelve in respect of any Senior  Indebtedness  at any
time held by it, to the same extent as any other holder of Senior  Indebtedness,
and nothing in this Indenture  shall deprive the Trustee of any of its rights as
such holder.

     With  respect to the holders of Senior  Indebtedness  of the  Company,  the
Trustee  undertakes  to  perform or to observe  only such of its  covenants  and
obligations as are set forth in this Article Twelve, and no implied covenants or
obligations  with  respect to the holders of such Senior  Indebtedness  shall be
read into this Indenture against the Trustee. The Trustee shall not be deemed to
owe any fiduciary duty to the holders of such Senior  Indebtedness  and, subject
to the  provisions of Section 603, the Trustee shall not be liable to any holder
of such  Senior  Indebtedness  if it shall pay over or deliver to  Holders,  the
Company or any other  Person  money or assets to which any holder of such Senior
Indebtedness  shall be entitled by virtue of this Article  Twelve or  otherwise.
With respect to the holders of Senior  Indebtedness,  the Trustee undertakes ,to
perform  or to  observe  only  such  of  its  covenants  or  obligations  as are
specifically  set forth in this  Article  Twelve  and no  implied  covenants  or
obligations  with respect to holders of Senior  Indebtedness  shall be read into
this Indenture against the Trustee.

SECTION 1208.  SUBORDINATION MAY NOT BE IMPAIRED.

     No right of any  present  or future  holder of any Senior  Indebtedness  to
enforce  subordination  as  herein  provided  shall  at any  time  in any way be
prejudiced  or  impaired by any act or failure to act on the part of the Company
or by any act or failure to act, in good faith,  by any such  holder,  or by any
noncompliance  by the Company with the terms,  provisions  and covenants of this
Indenture, regardless of any knowledge thereof which any such holder may have or
otherwise be charged with.

     Without in any way limiting the generality of the foregoing paragraph,  the
holders of Senior  Indebtedness may, at any time and from time to time,  without
the  consent  of or notice to the  Trustee  or the  Holders,  without  incurring
responsibility  to the  holders  of the  Securities  and  without  impairing  or
releasing the  subordination  provided in this Article Twelve or the obligations
hereunder  of  the  Holders  of  the   Securities   to  the  holders  of  Senior
Indebtedness,  do any one or more of the following: (i) change the manner, place
or terms of payment or extend  the time of payment  of, or renew or alter,  such
Senior Indebtedness,  or otherwise amend or supplement in any manner such Senior
Indebtedness or any instrument  evidencing the same or any agreement under which
such  Senior  Indebtedness  is  outstanding;  (ii)  sell,  exchange,  release or
otherwise deal with any property pledged,  mortgaged or otherwise  securing such
Senior  Indebtedness;  (iii)  release  any  Person  liable in any manner for the
collection of such Senior


                                     -59-








Indebtedness;  and (iv) exercise or refrain from  exercising  any rights against
the Company and any other Person.

SECTION 1209.  CERTAIN CONVERSIONS DEEMED PAYMENT.

     For the purposes of this Article Twelve only, (1) the issuance and delivery
of junior  securities  upon  conversion of Securities in accordance with Article
Thirteen shall not be deemed to constitute a payment or  distribution on account
of the principal of (or premium, if any) or interest on Securities or on account
of the  purchase  or  other  acquisition  of  Securities,  and (2) the  payment,
issuance or delivery of cash  (except in  satisfaction  of  fractional  shares),
property or  securities  (other than junior  securities)  upon  conversion  of a
Security  shall be deemed to  constitute  payment on account of the principal of
such  Security.  For the  purposes  of  this  Section  1209,  the  term  "junior
securities"  means (a) shares of any stock of any class of the  Company,  or (b)
securities  of the  Company  which are  subordinated  in right of payment to all
Senior Indebtedness which may be outstanding at the time of issuance or delivery
of such securities to  substantially  the same extent as, or to a greater extent
than, the Securities are so  subordinated  as provided in this Article.  Nothing
contained  in this  Article  Twelve or  elsewhere  in this  Indenture  or in the
Securities is intended to or shall impair,  as among the Company,  its creditors
other than holders of Senior  Indebtedness and the Holders,  the right, which is
absolute and unconditional, of the Holder to convert such Security in accordance
with Article Thirteen.

SECTION 1210.  ARTICLE APPLICABLE TO PAYING AGENTS.

     If at any time any  paying  agent  other than the  Trustee  shall have been
appointed  by the Company and be then acting  hereunder,  the term  "Trustee" as
used in this Article shall (unless the context otherwise  requires) be construed
as extending to and including  such paying agent within its meaning as fully for
all intents and  purposes as if such paying  agent were named in this Article in
addition  to or in place  of the  Trustee;  PROVIDED,  HOWEVER,  that the  first
paragraph of Section 1207 shall not apply to the Company or any Affiliate of the
Company if it or such Affiliate acts as paying agent.

                                ARTICLE THIRTEEN

                            Conversion of Securities

SECTION 1301.  CONVERSION RIGHTS.

     Subject to and upon  compliance  with the  provisions of this Article,  the
Securities  are  convertible,  at the  option of the  Holder,  at any time on or
before the close of business on the Business Day immediately  preceding the date
of repayment of such Securities,  whether at maturity or upon redemption (either
at the option of the Company or  pursuant  to a Tax  Event),  into the number of
fully paid and nonassessable shares of Common Stock obtained by dividing $50 per
Security  by the  applicable  conversion  price  (initially  $28.75 per share of
Common  Stock for each  Security),  rounded to the nearest  one  thousand of one
share (equivalent to conversion


                                     -60-








rate of 1.739  Shares  per  share of  Common  Stock per  Security),  subject  to
adjustment  as  described  in this  Article  Thirteen.  A Holder may convert any
portion of the principal amount of the Securities into that number of fully paid
and  nonassessable  shares of Common Stock  (calculated as to each conversion to
the nearest  1/1000th of a share)  obtained by dividing the principal  amount of
the Securities to be converted by such  conversion  price. In case a Security or
portion  thereof is called for redemption,  such conversion  right in respect of
the  Security or portion so called  shall expire at the close of business on the
Business Day immediately preceding the corresponding Redemption Date, unless the
Company defaults in making the payment due upon redemption. The Company shall at
all times reserve and keep available out of its  authorized and unissued  Common
Stock, solely for issuance upon the conversion of the Securities,  free from any
preemptive  or other  similar  rights,  such number of shares of Common Stock as
shall from time to time be issuable upon the  conversion  of all the  Securities
then outstanding.

SECTION 1302.  CONVERSION PROCEDURES.

     (a) In order to  convert  all or a portion  of the  Securities,  the Holder
thereof  shall  deliver  to  the  Conversion  Agent  an  irrevocable  Notice  of
Conversion  setting  forth the  principal  amount of Securities to be converted,
together with the name or names,  if other than the Holder,  in which the shares
of Common Stock should be issued upon  conversion  and, if such  Securities  are
definitive  Securities,  surrender to the Conversion  Agent the Securities to be
converted,  duly endorsed or assigned to the Company or in blank. In addition, a
holder of Preferred  Securities may exercise its right under the  Declaration to
convert  such  Preferred  Securities  into  Common  Stock by  delivering  to the
Conversion  Agent  an  irrevocable   Notice  of  Conversion  setting  forth  the
information  called for by the preceding  sentence and directing the  Conversion
Agent (i) to exchange such  Preferred  Security for a portion of the  Securities
held by the Trust (at an exchange rate of $50 principal amount of Securities for
each Preferred  Security) and (ii) to immediately  convert such  Securities,  on
behalf of such holder, into Common Stock of the Company pursuant to this Article
Thirteen and, if such Preferred Securities are in definitive form,  surrendering
such Preferred Securities, duly endorsed or assigned to the Company or in blank.
So long as any Preferred Securities are Outstanding, the Trust shall not convert
any  Securities  except  pursuant  to a Notice of  Conversion  delivered  to the
Conversion Agent by a holder of Preferred Securities.

     If a Notice of Conversion is delivered on or after the Regular  Record Date
and prior to the subsequent  Interest  Payment Date, the Holder will be entitled
to receive the interest  payable on the subsequent  Interest Payment Date on the
portion of Securities to be converted  notwithstanding  the  conversion  thereof
prior to such  Interest  Payment  Date.  Except  as  otherwise  provided  in the
immediately  preceding sentence, in the case of any Security which is converted,
interest  whose Stated  Maturity is on or after the date of  conversion  of such
Security shall not be payable, and the Company shall not make nor be required to
make any other  payment,  adjustment  or  allowance  with respect to accrued but
unpaid interest on the Securities being  converted,  which shall be deemed to be
paid in full. Each conversion shall be deemed to have been effected  immediately
prior to the close of business on the day on which the Notice of

                                     -61-








Conversion was received (the "Conversion Date") by the Conversion Agent from the
Holder or from a holder  of the  Preferred  Securities  effecting  a  conversion
thereof pursuant to its conversion rights under the Declaration, as the case may
be. The Person or Persons  entitled to receive the Common  Stock  issuable  upon
such  conversion  shall be treated  for all  purposes  as the  record  holder or
holders  of such  Common  Stock as of the  Conversion  Date and such  Person  or
Persons will cease to be a record holder or record  holders of the Securities on
that date.  As promptly as  practicable  on or after the  Conversion  Date,  the
Company shall issue and deliver at the office of the  Conversion  Agent,  unless
otherwise  directed by the Holder in the Notice of Conversion,  a certificate or
certificates  for the number of full shares of Common Stock  issuable  upon such
conversion,  together with the cash payment,  if any, in lieu of any fraction of
any share to the Person or Persons  entitled to receive the same. The Conversion
Agent shall deliver such certificate or certificates to such Person or Persons.

     (b) The Company's delivery upon conversion of the fixed number of shares of
Common Stock into which the Securities are  convertible  (together with the cash
payment,  if any, in lieu of  fractional  shares) shall be deemed to satisfy the
Company's  obligation to pay the principal  amount at Maturity of the portion of
Securities so converted and any unpaid interest (including  Compounded Interest,
Additional  Interest and Liquidated  Damages)  accrued on such Securities at the
time of such conversion.

     (c) No  fractional  shares  of Common  Stock  will be issued as a result of
conversion, but in lieu thereof, the Company shall pay to the Conversion Agent a
cash  adjustment  in an amount equal to the same  fraction of the last  reported
sale price of such  fractional  interest on the date on which the  Securities or
Preferred  Securities,  as  the  case  may  be,  were  duly  surrendered  to the
Conversion  Agent for  conversion,  or, if such day is not a Trading Day, on the
next Trading Day, and the  Conversion  Agent in turn will make such payment,  if
any, to the Holder or the holder of the Preferred Securities so converted.

     (d) In the event of the  conversion  of any  Security  in part only,  a new
Security or Securities for the unconverted portion thereof will be issued in the
name of the Holder thereof upon the  cancellation  of the Security  converted in
part in accordance with Section 305.

     (e) In effecting the conversion transactions described in this Section, the
Conversion  Agent is acting as agent of the holders of Preferred  Securities (in
the exchange of Preferred Securities for Securities) and as agent of the Holders
of Securities (in the conversion of Securities  into Common Stock),  as the case
may be,  directing it to effect such  conversion  transactions.  The  Conversion
Agent is hereby  authorized  (i) to exchange  Securities  held by the Trust from
time to time for Preferred  Securities in connection with the conversion of such
Preferred  Securities  in  accordance  with this  Article  Thirteen  and (ii) to
convert all or a portion of the  Securities  into Common Stock and  thereupon to
deliver such shares of Common Stock in  accordance  with the  provisions of this
Article  Thirteen and to deliver to the Trust a new Security or  Securities  for
any resulting unconverted principal amount.

                                     -62-








     (f) All shares of Common Stock  delivered upon any conversion of Securities
required  to bear the  Restricted  Securities  Legend  shall bear a  restrictive
legend  substantially in the form of the legend required to be set forth on such
Securities and shall be subject to the restrictions on transfer provided in such
legend and in Section  305(b)  hereof.  Neither the  Trustee nor the  Conversion
Agent shall have any  responsibility  for the  inclusion  or content of any such
restrictive legend on such Common Stock; PROVIDED,  however, that the Trustee or
the  Conversion  Agent shall have  provided  to the Company or to the  Company's
transfer agent for such Common Stock, prior to or concurrently with a request to
the Company to deliver to such  Conversion  Agent  certificates  for such Common
Stock,   written  notice  that  the  Securities  delivered  for  conversion  are
Securities  required to bear the  Restricted  Securities  Legend.  

SECTION 1303.  CONVERSION PRICE ADJUSTMENTS.

     The conversion price shall be subject to adjustment  (without  duplication)
from time to time as follows:

     (a) In case the Company shall, while any of the Securities are Outstanding,
(i) pay a dividend or make a  distribution  with  respect to its Common Stock in
shares of Common Stock,  (ii) subdivide its outstanding  shares of Common Stock,
(iii) combine its  outstanding  shares of Common Stock into a smaller  number of
shares or (iv)  issue by  reclassification  of its  shares  of Common  Stock any
shares  of  capital  stock of the  Company,  the  conversion  privilege  and the
conversion price in effect immediately prior to such action shall be adjusted so
that the Holder of any Securities thereafter surrendered for conversion shall be
entitled to receive the number of shares of capital  stock of the Company  which
he would have owned  immediately  following such action had such Securities been
converted  immediately  prior  thereto.  An  adjustment  made  pursuant  to this
subsection (a) shall become effective  immediately  after the record date in the
case of a dividend or other distribution and shall become effective  immediately
after  the   effective   date  in  case  of  a   subdivision,   combination   or
reclassification  (or  immediately  after the record date if a record date shall
have been  established  for such event).  If, as a result of an adjustment  made
pursuant  to  this  subsection  (a),  the  Holder  of  any  Security  thereafter
surrendered  for  conversion  shall become  entitled to receive shares of two or
more classes or series of capital  stock of the Company,  the Board of Directors
(whose  determination  shall be  conclusive  and shall be  described  in a Board
Resolution  filed  with the  Trustee)  shall  determine  the  allocation  of the
adjusted  conversion  price between or among shares of such classes or series of
capital  stock.  In the event  that such  dividend,  distribution,  subdivision,
combination or issuance is not so paid or made, the conversion price shall again
be  adjusted  to be the  conversion  price which would then be in effect if such
record date had not been fixed.

     (b) In case the Company shall, while any of the Securities are Outstanding,
issue rights or warrants to all holders of its Common Stock  entitling them (for
a period  expiring  within 45 days after the  record  date  mentioned  below) to
subscribe for or purchase  shares of Common Stock at a price per share less than
the current  market price per share of Common Stock (as  determined  pursuant to
subsection (f) below) on the record date mentioned  below,  the conversion price
for the  Securities  shall be  adjusted  so that the same shall  equal the price
determined by


                                     -63-








multiplying  the  conversion  price in effect  immediately  prior to the date of
issuance of such rights or warrants by a fraction of which the  numerator  shall
be the number of shares of Common Stock  outstanding  on the date of issuance of
such rights or warrants plus the number of shares which the  aggregate  offering
price of the total  number of shares so offered  for  subscription  or  purchase
would purchase at such current market price, and of which the denominator  shall
be the number of shares of Common Stock  outstanding  on the date of issuance of
such rights or warrants  plus the number of  additional  shares of Common  Stock
offered for  subscription or purchase.  Such adjustment  shall become  effective
immediately after the record date for the determination of stockholders entitled
to receive such rights or warrants.  For the  purposes of this  subsection,  the
number  of  shares of Common  Stock at any time  outstanding  shall not  include
shares held in the  treasury  of the  Company.  The Company  shall not issue any
rights or warrants in respect of shares of Common  Stock held in the treasury of
the Company.  In case any rights or warrants  referred to in this  subsection in
respect of which an  adjustment  shall have been made shall  expire  unexercised
within 45 days  after the same  shall  have  been  distributed  or issued by the
Company, the conversion price shall be readjusted at the time of such expiration
to the conversion price that would have been in effect if no adjustment had been
made on  account of the  distribution  or  issuance  of such  expired  rights or
warrants.

     (c) Subject to the last sentence of this subparagraph,  in case the Company
shall,  by dividend or otherwise,  distribute to all holders of its Common Stock
evidences of its  indebtedness,  shares of any class or series of capital stock,
cash or assets  (including  securities,  but  excluding  any rights or  warrants
referred to in subparagraph  (b), any dividend or distribution  paid exclusively
in cash and any dividend or distribution referred to in subparagraph (a) of this
Section  1303),  the  conversion  price  shall be reduced so that the same shall
equal  the  price  determined  by  multiplying  the  conversion  price in effect
immediately  prior  to the  effectiveness  of  the  conversion  price  reduction
contemplated by this subparagraph (c) by a fraction of which the numerator shall
be the current market price per share  (determined  as provided in  subparagraph
(f)) of the Common Stock on the date fixed for the payment of such  distribution
(the  "Reference  Date") less the fair market value (as determined in good faith
by the Board of Directors, whose determination shall be conclusive and described
in a  resolution  of the Board of  Directors),  on the  Reference  Date,  of the
portion of the  evidences of  indebtedness,  shares of capital  stock,  cash and
assets  so  distributed  applicable  to  one  share  of  Common  Stock  and  the
denominator  shall be such current  market price per share of the Common  Stock,
such reduction to become effective  immediately prior to the opening of business
on the day  following  the  Reference  Date.  In the event that such dividend or
distribution  is not so paid or  made,  the  conversion  price  shall  again  be
adjusted  to be the  conversion  price  which  would  then be in  effect if such
dividend or distribution had not occurred.  If the Board of Directors determines
the fair market value of any distribution for purposes of this  subparagraph (c)
by  reference  to the actual or when issued  trading  market for any  securities
comprising  such  distribution,  it must in doing so consider the prices in such
market over the same period used in computing the current market price per share
of Common Stock  (determined as provided in  subparagraph  (f)). For purposes of
this  subparagraph  (c), any dividend or  distribution  that includes  shares of
Common Stock or rights or warrants to subscribe for or purchase shares of Common
Stock  shall be deemed  instead  to be (1) a  dividend  or  distribution  of the
evidences of indebtedness, shares of capital stock, cash or assets

                                     -64-








other than such shares of Common  Stock or such  rights or warrants  (making any
conversion  price  reduction  required  by this  subparagraph  (c))  immediately
followed by (2) a dividend  or  distribution  of such shares of Common  Stock or
such rights or warrants (making any further  conversion price reduction required
by subparagraph  (a) or (b)),  except (A) the Reference Date of such dividend or
distribution  as defined in this  subparagraph  shall be substituted as (a) "the
record  date in the  case of a  dividend  or other  distribution,"  and (b) "the
record date for the  determination  of  stockholders  entitled  to receive  such
rights or warrants" and (c) "the date fixed for such  determination"  within the
meaning of subparagraphs (a) and (b) and (B) any shares of Common Stock included
in such dividend or distribution shall not be deemed outstanding for purposes of
computing any adjustment of the conversion price in subparagraph (a).

     (d) In case the Company shall pay or make a dividend or other  distribution
on its Common Stock  exclusively in cash  (excluding all regular cash dividends,
if the  annualized  amount thereof per share of Common Stock does not exceed 10%
of the current  market price per share,  determined as provided in  subparagraph
(f), of the Common Stock on the Trading Day  immediately  preceding  the date of
declaration of such dividend), the conversion price shall be reduced so that the
same shall equal the price  determined by multiplying  the  conversion  price in
effect  immediately prior to the effectiveness of the conversion price reduction
contemplated by this  subparagraph by a fraction of which the numerator shall be
the current market price per share  (determined as provided in subparagraph (f))
of the Common Stock on the date fixed for the payment of such  distribution less
the amount of cash so distributed  (excluding that portion of such  distribution
that does not exceed 10% of the current  market price per share,  determined  as
provided  above)  applicable  to one share of Common  Stock and the  denominator
shall be such current market price per share of the Common Stock, such reduction
to become  effective  immediately  prior to the  opening of  business on the day
following  the  date  fixed  for the  payment  of such  distribution;  PROVIDED,
HOWEVER, that in the event the portion of the cash so distributed  applicable to
one share of Common Stock is equal to or greater  than the current  market price
per share (as  defined in  subparagraph  (f)) of the Common  Stock on the record
date mentioned above (excluding that portion of such  distribution that does not
exceed 10% of the current market price per share, determined as provided above),
in lieu of the foregoing  adjustment,  adequate  provision shall be made so that
each  Holder of shares  of  Securities  shall  have the  right to  receive  upon
conversion  the amount of cash such Holder  would have  received had such Holder
converted each share of the Securities  immediately prior to the record date for
the distribution of the cash (less that portion of such  distribution  that does
not exceed 10% of the current  market  price per share,  determined  as provided
above).  In the event that such dividend or distribution is not so paid or made,
the conversion  price shall again be adjusted to be the  conversion  price which
would then be in effect if such record date had not been fixed.

     (e) In case a tender or exchange  offer (other than an odd-lot  offer) made
by the  Company or any  Subsidiary  of the Company for all or any portion of the
Common  Stock shall expire and such tender or exchange  offer shall  involve the
payment by the Company or such Subsidiary of  consideration  per share of Common
Stock  having a fair market value (as  determined  in good faith by the Board of
Directors, whose determination shall be conclusive and described in a resolution
of the Board of Directors) at the last time (the "Expiration Time")

                                     -65-








tenders or exchanges may be made  pursuant to such tender or exchange  offer (as
it shall have been  amended)  that  exceeds the current  market  price per share
(determined as provided in subparagraph  (f)) of the Common Stock on the Trading
Day next succeeding the Expiration  Time, the conversion  price shall be reduced
so that the same shall equal the price  determined by multiplying the conversion
price in effect  immediately  prior to the effectiveness of the conversion price
reduction  contemplated  by this  subparagraph  (e) by a  fraction  of which the
numerator shall be the number of shares of Common Stock  outstanding  (including
any tendered or  exchanged  shares) at the  Expiration  Time  multiplied  by the
current market price per share  (determined as provided in subparagraph  (f)) of
the Common Stock on the Trading Day next  succeeding the Expiration Time and the
denominator  shall  be the sum of (x)  the  fair  market  value  (determined  as
aforesaid) of the aggregate  consideration  payable to stockholders based on the
acceptance  (up to any maximum  specified in the terms of the tender or exchange
offer) of all shares  validly  tendered or exchanged and not withdrawn as of the
Expiration  Time (the shares deemed so accepted,  up to any such maximum,  being
referred  to  as  the  "Purchased  Shares")  (excluding  that  portion  of  such
consideration  that  does  not  exceed  the  current  market  price  per  share,
determined  as  provided  above) and (y) the  product of the number of shares of
Common Stock  outstanding (less any Purchased Shares) at the Expiration Time and
the current market price per share  (determined as provided in subparagraph (f))
of the Common Stock on the Trading Day next succeeding the Expiration Time, such
reduction to become  effective  immediately  prior to the opening of business on
the day following the Expiration Time. In the event that such tender or exchange
offer is not so made,  the  conversion  price  shall again be adjusted to be the
conversion  price which would then be in effect if such record date had not been
fixed.

     (f) For the purpose of any computation under subparagraphs (b), (c), (d) or
(e), the current  market price per share of Common Stock on any date in question
shall be  deemed to be the  average  of the daily  Closing  Prices  for the five
consecutive  Trading Days  selected by the Company  commencing  not more than 20
Trading  Days  before,  and ending  not later  than,  the  earlier of the day in
question  or, if  applicable,  the day before the "ex" date with  respect to the
issuance or distribution requiring such computation;  PROVIDED, HOWEVER, that if
another event occurs that would require an adjustment  pursuant to  subparagraph
(a) through (e), inclusive,  the Board of Directors may make such adjustments to
the Closing  Prices during such five Trading Day period as it deems  appropriate
to effectuate the intent of the  adjustments in this Section 1303, in which case
any such  determination  by the Board of Directors shall be set forth in a Board
Resolution and shall be  conclusive.  For purposes of this  paragraph,  the term
"ex" date, (1) when used with respect to any issuance or distribution, means the
first date on which the Common Stock trades  regular way on the NYSE,  or if the
security  is not  listed  on the NYSE,  the  Nasdaq  National  Market or on such
successor  securities  exchange or inter-dealer  quotation  system as the Common
Stock may be listed or in the relevant market from which the Closing Prices were
obtained  without the right to receive such  issuance or  distribution,  and (2)
when used with  respect to any tender or exchange  offer means the first date on
which the Common Stock trades regular way on such securities  exchange or inter-
dealer  quotation  system or in such market  after the  Expiration  Time of such
offer.


                                     -66-








     (g) The  Company  may make such  reductions  in the  conversion  price,  in
addition to those required by subparagraphs  (a) through (e), as it considers to
be  advisable  to avoid or diminish any income tax to holders of Common Stock or
rights to purchase  Common Stock  resulting from any dividend or distribution of
stock (or rights to acquire  stock) or from any event treated as such for income
tax purposes.  The Company from time to time may reduce the conversion  price by
any amount for any  period of time if the period is at least  twenty  (20) days,
the reduction is  irrevocable  during the period,  and the Board of Directors of
the Company shall have made a determination  that such reduction would be in the
best interest of the Company, which determination shall be conclusive.  Whenever
the conversion price is reduced pursuant to the preceding sentence,  the Company
shall mail to holders of record of the  Securities a notice of the  reduction at
least  fifteen  (15) days prior to the date the reduced  conversion  price takes
effect,  and such notice shall state the reduced conversion price and the period
it will be in effect.

     (h) No  adjustment  of the  conversion  price  shall be  required  upon the
issuance  of any shares of Common  Stock  pursuant to any present or future plan
providing for the reinvestment of dividends or interest payable on securities of
the Company  and the  investment  of  additional  optional  amounts in shares of
Common Stock under any such plan. No adjustment in the conversion price shall be
required  unless  such  adjustment  would  require an increase or decrease of at
least 1% in the conversion price; PROVIDED,  however, that any adjustments which
by reason of this  subparagraph  are not  required  to be made  shall be carried
forward and taken into account in determining whether any subsequent  adjustment
shall be required.

     (i) If any action would require adjustment of the conversion price pursuant
to more than one of the provisions described above, only one adjustment shall be
made and such adjustment  shall be the amount of adjustment that has the highest
absolute value to the Holder of the Securities.

SECTION 1304.  FUNDAMENTAL CHANGE.

     (a) In the  event  that the  Company  shall  be a party to any  transaction
(including without limitation (i) any  recapitalization  or  reclassification of
the Common Stock (other than a change in par value,  or from par value to no par
value,  or from no par value to par value,  or as a result of a  subdivision  or
combination of the Common Stock), (ii) any consolidation of the Company with, or
merger of the Company into, any other Person,  any merger of another Person into
the Company  (other than a merger  which does not result in a  reclassification,
conversion,  exchange or cancellation  of outstanding  shares of Common Stock of
the  Company),  (iii) any sale or  transfer of all or  substantially  all of the
assets of the Company or (iv) any compulsory  share exchange)  pursuant to which
either shares of Common Stock shall be converted into the right to receive other
securities, cash or other property, or, in the case of a sale or transfer of all
or substantially  all of the assets of the Company,  the holders of Common Stock
shall be entitled to receive  other  securities,  cash or other  property,  then
lawful provision shall be made as part of the terms of such transaction  whereby
the Holder of each Security then outstanding  shall have the right thereafter to
convert such Security only into:


                                     -67-








          (1) in the case of any such  transaction  that does not  constitute  a
Common Stock  Fundamental  Change (as defined  below) and subject to funds being
legally  available  for such purpose  under  applicable  law at the time of such
conversion,  the kind and amount of the securities,  cash or other property that
would  have  been  receivable  upon  such  recapitalization,   reclassification,
consolidation,  merger,  sale,  transfer  or share  exchange  by a holder of the
number of shares of Common  Stock  issuable  upon  conversion  of such  Security
immediately  prior to such  recapitalization,  reclassification,  consolidation,
merger,  sale,  transfer or share exchange,  after giving effect, in the case of
any Non-Stock  Fundamental  Change (as defined below),  to any adjustment in the
Conversion Price in accordance with Section 1304(c)(1); and

          (2) in the  case of any such  transaction  that  constitutes  a Common
Stock Fundamental Change, common stock of the kind received by holders of Common
Stock  as a  result  of  such  Common  Stock  Fundamental  Change  in an  amount
determined in accordance with Section 1304(c)(2).

     (b) The Company or the Person  formed by such  consolidation  or  resulting
from such merger or that  acquired  such assets or that  acquires the  Company's
shares,  as the case may be, shall expressly  assume all obligations  under this
Indenture,  the  Declaration,  the Guarantee and all  Outstanding  Securities by
entering into a supplemental indenture to this Indenture and by becoming a party
to the  Declaration  and the  Guarantee  (as  applicable)  to amend each of such
agreements  to provide  for such right  provided  for above with  respect to the
Securities and the Preferred  Securities.  Such amendments and supplements shall
provide for adjustments  which,  for events  subsequent to the effective date of
such  agreement,  shall be as nearly  equivalent  as may be  practicable  to the
adjustments  provided for in this Article  Thirteen.  The above provisions shall
similarly apply to successive transactions of the foregoing type.

     (c)  Notwithstanding  any  other  provision  of  this  Section  1304 to the
contrary,  but without  duplication with Section 1303, if any Fundamental Change
(as defined below) occurs,  then the Conversion Price in effect will be adjusted
immediately after such Fundamental Change as follows:

          (1) in the case of a  Non-Stock  Fundamental  Change,  the  Conversion
Price of the Securities  immediately following such Non-Stock Fundamental Change
shall be the lower of (A) the Conversion  Price in effect  immediately  prior to
such Non-Stock  Fundamental  Change,  but after giving effect to any other prior
adjustments  effected  pursuant to Section 1303,  and (B) the product of (1) the
greater  of the  Applicable  Price (as  defined  in  Section  1307) and the then
applicable  Reference  Market  Price  (as  defined  in  Section  1307) and (2) a
fraction,  the numerator of which is $50 and the denominator of which is (x) the
amount of the  Redemption  Price set forth in Section  1109 for $50 in principal
amount of  Securities  if the  Redemption  Date were the date of such  Non-Stock
Fundamental  Change (or, for the period commencing on the first date of original
issuance of the Preferred Securities and to October 1, 1997 and the twelve month
periods  commencing  October 1, 1997,  October 1, 1998 and October 1, 1999,  the
product of 106.750%, 106.075%, 105.400% and 104.725%,  respectively,  times $50)
plus (y) any then-


                                     -68-








accrued and unpaid interest, including Additional Interest,  Compounded Interest
and Liquidated Damages, if any on one Preferred Security; and

          (2) in the case of a Common Stock Fundamental  Change,  the conversion
price of the  Securities  immediately  following  such Common Stock  Fundamental
Change shall be the conversion price in effect  immediately prior to such Common
Stock Fundamental Change, but after giving effect to any other prior adjustments
effected  pursuant to Section 1303,  multiplied by a fraction,  the numerator of
which is the  Purchaser  Stock  Price  (as  defined  in  Section  1307)  and the
denominator of which is the Applicable  Price;  PROVIDED,  however,  that in the
event of a Common Stock Fundamental Change in which (A) 100% of the value of the
consideration  received  by a holder  of  Common  Stock is  common  stock of the
successor, acquiror or other third party (and cash, if any, paid with respect to
any fractional  interests in such common stock  resulting from such Common Stock
Fundamental  Change) and (B) all of the Common  Stock shall have been  exchanged
for, converted into or acquired for, common stock of the successor,  acquiror or
other third party (and any cash with  respect to  fractional  interests  or with
respect to appraisal or similar rights),  the conversion price of the Securities
immediately  following  such  Common  Stock  Fundamental  Change  shall  be  the
conversion price in effect  immediately  prior to such Common Stock  Fundamental
Change  multiplied  by a  fraction,  the  numerator  of  which  is one  and  the
denominator  of which is the number of shares of common stock of the  successor,
acquiror or other third party  received by a holder of one share of Common Stock
as a result of such Common Stock Fundamental Change.

SECTION 1305.  NOTICE OF ADJUSTMENTS OF CONVERSION PRICE.

     Whenever the conversion price is adjusted as herein provided:

     (a) the Company  shall  compute  the  adjusted  conversion  price and shall
prepare a certificate  signed by the Chief Financial Officer or the Treasurer of
the  Company  setting  forth  the  adjusted  conversion  price  and  showing  in
reasonable  detail  the facts  upon which  such  adjustment  is based,  and such
certificate shall forthwith be filed with the Trustee,  the Conversion Agent and
the transfer agent for the Preferred Securities and the Securities; and

     (b) a notice  stating the  conversion  price has been  adjusted and setting
forth the adjusted  conversion  price shall as soon as  practicable be mailed by
the Company to all record holders of Preferred  Securities and the Securities at
their last addresses as they appear upon the stock transfer books of the Company
and the Trust.

SECTION 1306.  PRIOR NOTICE OF CERTAIN EVENTS.

In case:

     (a) the Company shall (1) declare any dividend (or any other  distribution)
on its Common Stock, other than (A) a dividend payable in shares of Common Stock
or (B) a dividend payable in cash that would not require an adjustment  pursuant
to Section 1303(c) or (d) or (2)


                                     -69-








authorize a tender or exchange  offer that would require an adjustment  pursuant
to Section 1303(e);

     (b) the Company shall authorize the granting to all holders of Common Stock
of rights or warrants to  subscribe  for or purchase  any shares of stock of any
class or series or of any other rights or warrants;

     (c) of any  reclassification  of Common Stock (other than a subdivision  or
combination of the  outstanding  Common Stock, or a change in par value, or from
par  value  to no par  value,  or from no par  value  to par  value),  or of any
consolidation  or merger to which the Company is a party and for which  approval
of any stockholders of the Company shall be required, or of the sale or transfer
of all or  substantially  all of the assets of the Company or of any  compulsory
share exchange whereby the Common Stock is converted into other securities, cash
or other property; or

     (d) of the voluntary or involuntary dissolution,  liquidation or winding up
of the Company;

then the Company shall (a) if any Preferred Securities are outstanding, cause to
be filed with the transfer agent for the Preferred  Securities,  and shall cause
to be mailed to the holders of record of the Preferred Securities, at their last
addresses  as they shall appear upon the stock  transfer  books the Trust or (b)
shall  cause to be mailed to all Holders at their last  addresses  as they shall
appear in the Security Register, at least 15 days prior to the applicable record
or effective date hereinafter  specified, a notice stating (x) the date on which
a record (if any) is to be taken for the purpose of such dividend, distribution,
rights or warrants or, if a record is not to be taken,  the date as of which the
holders of Common Stock of record to be entitled to such dividend, distribution,
rights  or  warrants  are to be  determined  or  (y)  the  date  on  which  such
reclassification,   consolidation,   merger,  sale,  transfer,  share  exchange,
dissolution,  liquidation or winding up is expected to become effective, and the
date as of which it is expected  that holders of Common Stock of record shall be
entitled to exchange their shares of Common Stock for securities,  cash or other
property deliverable upon such  reclassification,  consolidation,  merger, sale,
transfer, share exchange, dissolution, liquidation or winding up (but no failure
to mail such notice or any defect therein or in the mailing thereof shall affect
the validity of the corporate  action  required to be specified in such notice).

SECTION 1307. CERTAIN DEFINED TERMS.

     The  following  definitions  shall  apply  to  terms  used in this  Article
Thirteen:

     (a)  "APPLICABLE  PRICE" means (i) in the event of a Non-Stock  Fundamental
Change in which the holders of Common  Stock  receive  only cash,  the amount of
cash  received by a holder of one share of Common Stock and (ii) in the event of
any other  Fundamental  Change,  the average of the daily  Closing Price for one
share of Common Stock during the 10 Trading Days immediately prior to the record
date for the determination of the holders of Common Stock


                                     -70-








entitled to receive  cash,  securities,  property or other assets in  connection
with such  Fundamental  Change or, if there is no such record date, prior to the
date upon which the holders of Common Stock shall have the right to receive such
cash, securities, property or other assets.

     (b)  "CLOSING  PRICE" of any  common  stock on any day shall  mean the last
reported sale price regular way on such day or, in case no such sale takes place
on such day,  the average of the reported  closing bid and asked prices  regular
way of such common  stock,  in each case on the NYSE  Composite  Tape or, if the
common  stock is not listed or  admitted  to trading  on such  exchange,  on the
principal national securities exchange or interdealer  quotation system on which
such  common  stock is listed  or  admitted  to  trading,  or, if not  listed or
admitted  to  trading  on  any  national  securities  exchange  or  inter-dealer
quotation  system,  the average of the closing bid and asked prices as furnished
by any NYSE member firm  selected from time to time by the Board of Directors of
the  Company  for that  purpose  or,  if not so  available  in such  manner,  as
otherwise determined in good faith by the Board of Directors.
     (c) "COMMON STOCK FUNDAMENTAL CHANGE" means any Fundamental Change in which
more  than  50% of the  value  (as  determined  in good  faith  by the  Board of
Directors) of the consideration  received by holders of Common Stock consists of
common  stock,  that,  for  the  10  Trading  Days  immediately  prior  to  such
Fundamental  Change,  has been  admitted  for  listing or  admitted  for listing
subject to notice of issuance on a national securities exchange or quoted on the
Nasdaq Stock Market; PROVIDED, HOWEVER, that a Fundamental Change shall not be a
Common Stock Fundamental Change unless either (i) the Company continues to exist
after the occurrence of such Fundamental  Change and the outstanding  Securities
continue  to  exist  as  outstanding  Securities  or (ii)  not  later  than  the
occurrence of such Fundamental Change, all obligations of the Company under this
Indenture,  the  Declaration,  the Guarantee and all outstanding  Securities are
expressly  assumed by the Person  succeeding  to the  business of the Company by
becoming a party to the  Declaration  and the  Guarantee  and by entering into a
supplemental  indenture to this  Indenture (as  applicable),  which  obligations
shall  include the right of the holders of the  Preferred  Securities to convert
the  Preferred  Securities  (and the  Securities)  into the common stock of such
successor  entity and providing for adjustments  that, for events  subsequent to
the effective date thereof,  shall be as nearly equivalent as may be practicable
to the relevant adjustments provided for in this Article Thirteen.

     (d)  "FUNDAMENTAL  CHANGE" means the occurrence of any transaction or event
or series of transactions or events pursuant to which all or  substantially  all
of the Common  Stock shall be exchanged  for,  converted  into,  acquired for or
shall constitute solely the right to receive cash, securities, property or other
assets  (whether  by means of an  exchange  offer,  liquidation,  tender  offer,
consolidation,  merger,  combination,   reclassification,   recapitalization  or
otherwise); PROVIDED, however, in the case of any such series of transactions or
events,  for purposes of adjustment of the conversion  price,  such  Fundamental
Change shall be deemed to have  occurred  when  substantially  all of the Common
Stock shall have been  exchanged  for,  converted into or acquired for, or shall
constitute solely the right to receive, such cash, securities, property or other
assets,  but the  adjustment  shall be based  upon  the  consideration  that the
holders of Common  Stock  received  in the  transaction  or event as a result of
which more than 50% of the


                                     -71-








Common  Stock  outstanding  shall have been  exchanged  for,  converted  into or
acquired  for,  or shall  constitute  solely  the right to  receive,  such cash,
securities, property or other assets.

     (e) "NON-STOCK FUNDAMENTAL CHANGE", means any Fundamental Change other than
a Common Stock Fundamental Change.

     (f)  "PURCHASER  STOCK  PRICE"  means,  with  respect to any  Common  Stock
Fundamental  Change, the average of the daily Closing Price for one share of the
common  stock  received  by  holders  of  Common  Stock  in  such  Common  Stock
Fundamental  Change  during the 10 Trading  Days  immediately  prior to the date
fixed for the  determination  of the holders of Common Stock entitled to receive
such common stock or, if there is no such date, prior to the date upon which the
holders of Common Stock shall have the right to receive such common stock.

     (g) "REFERENCE  MARKET PRICE"  initially  means $16.25 and, in the event of
any adjustment to the  conversion  price other than as a result of a Fundamental
Change,  the Reference  Market Price shall also be adjusted so that the ratio of
the Reference  Market Price to the  conversion  price after giving effect to any
such adjustment  shall always be the same as the ratio of the initial  Reference
Market Price to the initial conversion price of $28.75 per share.

     (h) "TRADING  DAY" shall mean a day on which  securities  are traded on the
national  securities  exchange or quotation system used to determine the Closing
Price.

SECTION 1308.  DIVIDEND OR INTEREST REINVESTMENT PLANS.

     Notwithstanding  the  foregoing  provisions,  the issuance of any shares of
Common Stock pursuant to any plan providing for the reinvestment of dividends or
interest  payable on securities of the Company and the  investment of additional
optional amounts in shares of Common Stock under any such plan, and the issuance
of any  shares of Common  Stock or  options or rights to  purchase  such  shares
pursuant to any  employee  benefit plan or program of the Company or pursuant to
any option, warrant, right or exercisable,  exchangeable or convertible security
outstanding as of the date the Securities were first issued, shall not be deemed
to  constitute  an  issuance of Common  Stock or  exercisable,  exchangeable  or
convertible  securities by the Company to which any of the adjustment provisions
described  above  applies.  There shall also be no adjustment of the  conversion
price in case of the issuance of any stock (or  securities  convertible  into or
exchangeable for stock) of the Company except as specifically  described in this
Article Thirteen.

SECTION 1309.  CERTAIN ADDITIONAL RIGHTS.

     In case the Company  shall,  by dividend  or  otherwise,  declare or make a
distribution  on its Common  Stock  referred  to in  Section  1303(c) or 1303(d)
(including,  without limitation,  dividends or distributions  referred to in the
last  sentence of Section  1303(c)),  the Holder,  upon the  conversion  thereof
subsequent to the close of business on the date fixed for the  determination  of
stockholders   entitled  to  receive   such   distribution   and  prior  to  the
effectiveness of the


                                     -72-




conversion  price  adjustment  in  respect of such  distribution,  shall also be
entitled to receive for each share of Common Stock into which the Securities are
converted,  the  portion  of the  shares  of  Common  Stock,  rights,  warrants,
evidences  of  indebtedness,  shares  of  capital  stock,  cash  and  assets  so
distributed applicable to one share of Common Stock; PROVIDED, HOWEVER, that, at
the election of the Company  (whose  election shall be evidenced by a resolution
of the Board of  Directors)  with  respect  to all  Holders so  converting,  the
Company  may,  in lieu  of  distributing  to such  Holder  any  portion  of such
distribution  not  consisting  of cash or  securities  of the Company,  pay such
Holder an amount in cash equal to the fair market value  thereof (as  determined
in good faith by the Board of Directors, whose determination shall be conclusive
and described in a resolution of the Board of  Directors).  If any conversion of
Securities  described in the immediately  preceding sentence occurs prior to the
payment date for a  distribution  to holders of Common Stock which the Holder of
Securities  so  converted  is  entitled  to  receive  in  accordance   with  the
immediately  preceding  sentence,  the Company  may elect  (such  election to be
evidenced by a  resolution  of the Board of  Directors)  to  distribute  to such
Holder a due bill for the shares of Common Stock, rights, warrants, evidences of
indebtedness, shares of capital stock, cash or assets to which such Holder is so
entitled,  PROVIDED, that such due bill (i) meets any applicable requirements of
the principal national  securities  exchange or other market on which the Common
Stock is then  traded and (ii)  requires  payment or  delivery of such shares of
Common Stock,  rights,  warrants,  evidences of indebtedness,  shares of capital
stock,  cash or assets no later than the date of payment or delivery  thereof to
holders of shares of Common Stock receiving such distribution.

SECTION 1310.  RESTRICTIONS ON COMMON STOCK ISSUABLE UPON CONVERSION.

     (a) Shares of Common  Stock to be issued upon  conversion  of a Security in
respect of  Preferred  Securities  bearing a  Restricted  Securities  Legend (as
defined in the Declaration)  shall bear such restrictive  legends as the Company
may provide in accordance with applicable law.

     (b) If shares of Common Stock to be issued upon conversion of a Security in
respect of Preferred Securities bearing a Restricted Securities Legend are to be
registered in a name other than that of the holder of such  Preferred  Security,
then the Person in whose name such shares of Common  Stock are to be  registered
must deliver to the Conversion  Agent a certificate  satisfactory to the Company
and signed by such Person,  as to compliance  with the  restrictions on transfer
applicable to such  Preferred  Security.  Neither the Trustee nor any Conversion
Agent or  Registrar  shall be  required to register in a name other than that of
the Holder shares of Common Stock issued upon conversion of any such Security in
respect of such Preferred  Securities not so accompanied by a properly completed
certificate.

SECTION 1311.  TRUSTEE NOT RESPONSIBLE FOR DETERMINING CONVERSION PRICE OR
               ADJUSTMENTS.

     Neither the Trustee nor any Conversion Agent shall at any time be under any
duty or  responsibility  to any Holder of any Security to determine  whether any
facts exist which may require any  adjustment of the conversion  price,  or with
respect  to the  nature or  extent of any such  adjustment  when  made,  or with
respect to the method employed, or herein or in any


                                     -73-




supplemental  indenture provided to be employed, in making the same. Neither the
Trustee  nor any  Conversion  Agent  shall be  accountable  with  respect to the
validity or value (or the kind of  account) of any shares of Common  Stock or of
any  securities or property,  which may at any time be issued or delivered  upon
the conversion of any Security; and neither the Trustee nor any Conversion Agent
makes any  representation  with  respect  thereto.  Neither  the Trustee nor any
Conversion Agent shall be responsible for any failure of the Company to make any
cash  payment or to issue,  transfer  or deliver  any shares of Common  Stock or
stock  certificates  or other  securities  or property upon the surrender of any
Security for the purpose of conversion, or, except as expressly herein provided,
to comply with any of the  covenants of the Company  contained in Article Ten or
this Article Thirteen.

                                ARTICLE FOURTEEN

                                  Miscellaneous

SECTION 1401.  NO RECOURSE; IMMUNITY OF INCORPORATORS, STOCKHOLDERS, OFFICERS
               AND DIRECTORS.

     No recourse  under or upon any  obligation,  covenant or  agreement of this
Indenture,  or of any  Security,  or for any claim based thereon or otherwise in
respect thereof, shall be had against any incorporator,  stockholder, officer or
director,  past, present or future as such, of the Company or of any predecessor
or  successor  corporation,  either  directly or through the Company or any such
predecessor  or successor  corporation,  whether by virtue of any  constitution,
statute or rule of law, or by the  enforcement  of any  assessment or penalty or
otherwise; it being expressly understood that this Indenture and the obligations
issued  hereunder are solely  corporate  obligations,  and that no such personal
liability  whatever  shall  attach  to,  or is or  shall  be  incurred  by,  the
incorporators, stockholders, officers or directors as such, of the Company or of
any  predecessor  or  successor  corporation,  or any of  them,  because  of the
creation of the  indebtedness  hereby  authorized,  or under or by reason of the
obligations,  covenants or agreements  contained in this  Indenture or in any of
the  Securities  or  implied  therefrom;  and  that  any and all  such  personal
liability  of every  name and  nature,  either at common  law or in equity or by
constitution  or statute,  of, and any and all such  rights and claims  against,
every such  incorporator,  stockholder,  officer or director as such, because of
the creation of the indebtedness hereby authorized, or under or by reason of the
obligations,  covenants or agreements  contained in this  Indenture or in any of
the Securities or implied therefrom, are hereby expressly waived and released as
a condition of, and as a consideration  for, the execution of this Indenture and
the issuance of such Securities.

     This  instrument  may be  executed in any number of  counterparts,  each of
which so executed shall be deemed to be an original,  but all such  counterparts
shall together constitute but one and the same instrument.


                                     -74-








     IN WITNESS  WHEREOF,  the parties  hereto have caused this  Indenture to be
duly executed,  and their respective  corporate seals to be hereunto affixed and
attested, all as of the day and year first above written.


                                   VANSTAR CORPORATION

                                   By: /s/ H. CHRISTOPHER COVINGTON
                                      ---------------------------------------
                                   Name:  H. Christopher Covington
                                        -------------------------------------
                                   Title: Senior Vice President, General
                                          Counsel and Secretary
                                         ------------------------------------


                                   WILMINGTON TRUST COMPANY, as Trustee

                                   By: /s/ JAMES P. LAWLER
                                      ---------------------------------------
                                   Name:  James P. Lawler
                                        -------------------------------------
                                   Title: Vice President
                                         ------------------------------------







                                     -75-








STATE OF CALIFORNIA                )
                                   )  ss.:
COUNTY OF ALAMEDA                  )


     On October 2, 1996 before me personally came H. Christopher  Covington,  to
me known,  who,  being by me duly  sworn,  did depose and say that he/she is the
Senior Vice President, General Counsel and Secretary of Vanstar Corporation, one
of the  corporations  described in and which executed the foregoing  instrument;
and that  he/she  signed  his/her  name  thereto  by  authority  of the Board of
Directors of such corporation.

                                   By: /s/ JOHN J. DONOHUE
                                      -----------------------------------

                                   Notary Public State of California
                                   No.
                                      -----------------------------------
                                   Qualified in __________________ County
                                   Certificate Filed in _____________ County
                                   Commission Expires ______________ 199__

                                     -76-








STATE OF CALIFORNIA                )
                                   )  ss.:
COUNTY OF ALAMEDA                  )


     On October 2, 1996 before me personally came James P. Lawler,  to me known,
who,  being  by me duly  sworn,  did  depose  and say  that  he/she  is the Vice
President of Wilmington Trust Company, one of the corporations  described in and
which  executed the foregoing  instrument;  and that he/she signed  his/her name
thereto by authority of the Board of Directors of such corporation.

                                   By: /s/ JOHN J. DONOHUE
                                      -----------------------------------

                                   Notary Public State of California
                                   No.
                                      -----------------------------------
                                   Qualified in __________________ County
                                   Certificate Filed in ______________ County
                                   Commission Expires _________________ 199__












                                     -77-







                                    EXHIBIT A

                                FORM OF SECURITY

                           [FORM OF FACE OF SECURITY]

     THIS  SECURITY AND ANY COMMON STOCK  ISSUED ON  CONVERSION  HEREOF HAVE NOT
BEEN  REGISTERED  UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE  "SECURITIES
ACT"), OR ANY STATE SECURITIES  LAWS.  NEITHER THIS SECURITY NOR ANY INTEREST OR
PARTICIPATION  HEREIN MAY BE REOFFERED,  SOLD, ASSIGNED,  TRANSFERRED,  PLEDGED,
ENCUMBERED  OR  OTHERWISE  DISPOSED  OF IN THE ABSENCE OF SUCH  REGISTRATION  OR
UNLESS SUCH  TRANSACTION  IS EXEMPT  FROM,  OR NOT SUBJECT TO, THE  REGISTRATION
REQUIREMENTS  OF  THE  SECURITIES  ACT.  THE  HOLDER  OF  THIS  SECURITY  BY ITS
ACCEPTANCE  HEREOF AGREES TO OFFER,  SELL OR OTHERWISE  TRANSFER SUCH  SECURITY,
PRIOR TO THE DATE WHICH IS THREE YEARS AFTER (OR SUCH SHORTER  PERIOD UNDER RULE
144(k) UNDER THE SECURITIES ACT OR ANY SUCCESSOR RULE) THE LATER OF THE ORIGINAL
ISSUE DATE HEREOF AND THE LAST DATE ON WHICH VANSTAR CORPORATION (THE "COMPANY")
OR ANY  AFFILIATE  OF THE  COMPANY  WAS  THE  OWNER  OF  THIS  SECURITY  (OR ANY
PREDECESSOR OF THIS SECURITY) (THE "RESALE  RESTRICTION  TERMINATION DATE") ONLY
(A) TO THE COMPANY,  (B) PURSUANT TO AN EFFECTIVE  REGISTRATION  STATEMENT UNDER
THE  SECURITIES  ACT, (C) FOR SO LONG AS THE  SECURITIES ARE ELIGIBLE FOR RESALE
PURSUANT TO RULE 144A UNDER THE  SECURITIES  ACT ("RULE  144A"),  TO A PERSON IT
REASONABLY BELIEVES IS A "QUALIFIED INSTITUTIONAL BUYER" AS DEFINED IN RULE 144A
THAT  PURCHASES  FOR  ITS  OWN  ACCOUNT  OR  FOR  THE  ACCOUNT  OF  A  QUALIFIED
INSTITUTIONAL  BUYER TO WHOM NOTICE IS GIVEN THAT THE  TRANSFER IS BEING MADE IN
RELIANCE ON RULE 144A, (D) PURSUANT TO OFFERS AND SALES TO NON-U.S. PERSONS THAT
OCCUR  OUTSIDE THE UNITED  STATES  WITHIN THE MEANING OF  REGULATION S UNDER THE
SECURITIES ACT, (E) TO AN INSTITUTIONAL "ACCREDITED INVESTOR" WITHIN THE MEANING
OF  SUBPARAGRAPH  (a)(1),  (2), (3) OR (7) OF RULE 501 UNDER THE  SECURITIES ACT
THAT IS ACQUIRING  THE SECURITY FOR ITS OWN ACCOUNT,  OR FOR THE ACCOUNT OF SUCH
AN INSTITUTIONAL  "ACCREDITED  INVESTOR," FOR INVESTMENT PURPOSES AND NOT WITH A
VIEW TO, OR FOR OFFER OR SALE IN CONNECTION  WITH, ANY DISTRIBUTION IN VIOLATION
OF THE SECURITIES ACT, OR (F) PURSUANT TO ANOTHER  AVAILABLE  EXEMPTION FROM THE
REGISTRATION  REQUIREMENTS OF THE SECURITIES  ACT,  SUBJECT TO THE COMPANY'S AND
THE TRANSFER AGENTS RIGHT PRIOR TO ANY SUCH OFFER, SALE OR TRANSFER (i) PURSUANT
TO CLAUSES  (D),  (E) OR (F) TO REQUIRE  THE  DELIVERY OF AN OPINION OF COUNSEL,
CERTIFICATION AND/OR OTHER INFORMATION SATISFACTORY TO EACH OF THEM, AND (ii) IN
EACH OF THE FOREGOING  CASES,  TO REQUIRE THAT A CERTIFICATE  OF TRANSFER IN THE
FORM  APPEARING ON THIS SECURITY IS COMPLETED AND DELIVERED BY THE TRANSFEROR TO
THE  TRANSFER  AGENT.  THIS LEGEND WILL BE REMOVED  UPON THE REQUEST OF A HOLDER
AFTER THE RESALE RESTRICTION TERMINATION DATE.

                                      A-1








                               VANSTAR CORPORATION

                         6 3/4% Convertible Subordinated
                               Debenture due 2016

No.                                                $
   --------------------------                        -----------------------
                                                                   CUSIP No.
     VANSTAR  CORPORATION,  a corporation  duly organized and existing under the
laws of the State of Delaware (herein called the "Company",  which terms include
any successor corporation under the Indenture hereinafter referred to) for value
received, hereby promises to pay to  _____________________________________  , or
registered  assigns,  the  principal  sum  [indicated on Schedule A hereof]* [of
_______________ Dollars]** ($ ) on October 1, 2016.

Interest Payment Dates:    January 1, April 1, July 1 and October 1,
                           commencing January 1, 1997

Regular Record Dates:      the close of business on the Business Day immediately
                           preceding each Interest Payment Date, except as
                           otherwise provided in clause 4 set forth on the
                           reverse side of this Security

     Reference  is hereby made to the further  provisions  of this  Security set
forth on the reverse  hereof,  which further  provisions  shall for all purposes
have the same effect as if set forth at this place.

     Unless the  certificate of  authentication  hereon has been executed by the
Trustee  referred to on the reverse  hereof by manual  signature,  this Security
shall  not be  entitled  to any  benefit  under  the  Indenture  or be  valid or
obligatory for any purpose.




- --------------

     *Applicable to Global Securities only.

     **Applicable to certificated Securities only.


                                      A-2








     IN WITNESS  WHEREOF,  the Company has caused this  instrument  to be signed
manually or by facsimile by its duly authorized  officers and a facsimile of its
corporate seal to be affixed hereto or imprinted hereon.

Dated:


                                   VANSTAR CORPORATION


                                   By:
                                       ----------------------------------
                                   Title:
                                       ----------------------------------
[Seal]



Attest:


- --------------------------------------


                     TRUSTEE'S CERTIFICATE OF AUTHENTICATION
     This  is  one  of  the  Securities  referred  to  in  the  within-mentioned
Indenture.


Dated:                                  WILMINGTON TRUST COMPANY,
                                   as Trustee


                                   By:
                                       ----------------------------------
                                           Authorized Signatory

                                      A-3









                          [FORM OF REVERSE OF SECURITY]

                               VANSTAR CORPORATION



                         6 3/4% Convertible Subordinated
                               Debenture due 2016*

          (1)  INTEREST.   Vanstar  Corporation,  a  Delaware  corporation  (the
"Company"),  is the issuer of this 6 3/4% Convertible Subordinated Debenture due
2016 (the "Security")  limited in aggregate principal amount to $180,412,350 (or
$207,474,200  if the  over-allotment  option  is  exercised),  issued  under the
Indenture  hereinafter  referred to. The Company promises to pay interest on the
Securities in cash from October 2, 1996 or from the most recent interest payment
date to which interest has been paid or duly provided for, quarterly (subject to
deferral for up to 20 consecutive  quarters as described in Section 3 hereof) in
arrears on  January  1,  April 1, July 1, and  October 1 of each year (each such
date, an "Interest Payment Date"),  commencing January 1, 1997, at the rate of 6
3/4% per annum  (subject to  increase  as  provided  in Section 12 hereto)  PLUS
Additional Interest,  Compound Interest and Liquidated Damages if any, until the
principal hereof shall have become due and payable.

     The amount of interest payable for any period will be computed on the basis
of a 360-day year of twelve 30-day  months.  Except as provided in the following
sentence,  the amount of  interest  payable for any period  shorter  than a full
quarterly period for which interest is computed will be computed on the basis of
the actual number of days elapsed.  In the event that any date on which interest
is payable on the Securities is not a Business Day, then payment of the interest
payable on such date will be made on the next succeeding day which is a Business
Day (without any interest or other payment in respect of any such delay), except
that, if such Business Day is in the next succeeding calendar year, such payment
shall be made on the immediately  preceding  Business Day, in each case with the
same force and effect as if made on such date.

          (2) ADDITIONAL  INTEREST.  The Company shall pay to Vanstar  Financing
Trust (and its  permitted  successors  or assigns  under the  Declaration)  (the
"Trust") such amounts as shall be required so that the net amounts  received and
retained  by the Trust  after  paying any taxes,  duties,  assessments  or other
governmental  charges of whatever nature (other than withholding  taxes) imposed
on the Trust by the United  States or any other  taxing  authority  ("Additional
Interest")  will be not less than the amounts the Trust would have  received had
no such taxes, duties, assessment or governmental charges been imposed.


- -------------

     *All terms used in this  Security  which are defined in the Indenture or in
the Declaration  attached as Annex A thereto shall have the meanings assigned to
them in the Indenture or the Declaration, as the case may be.

                                      A-4








          (3) OPTION TO EXTEND INTEREST  PAYMENT PERIOD.  The Company shall have
the  right  at any time  during  the term of the  Securities  to defer  interest
payments  from  time  to time by  extending  the  interest  payment  period  for
successive  periods (each,  an "Extension  Period") not exceeding 20 consecutive
quarters for each such period;  PROVIDED,  no Extension Period may extend beyond
the maturity date of the Securities.  At the end of each Extension  Period,  the
Company shall be  responsible  for the payment of, and the Company shall pay all
interest then accrued and unpaid (including  Additional  Interest and Liquidated
Damages)  together  with  interest  thereon  compounded  quarterly  at the  rate
specified  for  the  Securities  to  the  extent  permitted  by  applicable  law
("Compounded Interest"); PROVIDED, that during any Extension Period, the Company
shall not, and shall not allow any of its Subsidiaries (other than, with respect
to clause (i) below only, its wholly owned  Subsidiaries) to, (i) declare or pay
dividends  on,  make  distributions  with  respect  to, or redeem,  purchase  or
acquire, or make a liquidation payment with respect to, any of its capital stock
(except for (1) dividends or  distributions  in shares of Common Stock on Common
Stock or on the  Preferred  Stock,  (2) purchases or  acquisitions  of shares of
Common Stock made in connection with any employee benefit plan of the Company or
its  subsidiaries  in the ordinary  course of business or pursuant to employment
agreements with officers or employees of the Company or its subsidiaries entered
into in the ordinary course of business,  provided that such  repurchases by the
Company  made from  officers or  employees  of the  Company or its  subsidiaries
pursuant to employment  agreements shall be made at a price not to exceed market
value on the date of any such  repurchase and shall not exceed $1 million in the
aggregate for all such employees and officers,  (3)  conversions or exchanges of
shares of Common  Stock of any one class into shares of Common  Stock of another
class or (4)  purchases  of  fractional  interests  in shares  of the  Company's
capital stock  pursuant to the  conversion or exchange  provisions of any of the
Company's  securities  being  converted or exchanged),  (ii) make any payment of
interest,  principal or premium, if any, on or repay,  repurchase or redeem, any
debt securities issued by the Company that rank junior to or PARI PASSU with the
Securities and (iii) make any guarantee  payments with respect to the foregoing.
Prior to the termination of any such Extension  Period,  the Company may further
extend such Extension Period; PROVIDED, that such Extension Period together with
all  previous  and  further  extensions  thereof  may not exceed 20  consecutive
quarters  and may not extend  beyond the  maturity of the  Securities.  Upon the
termination of any Extension Period and the payment of all amounts then due, the
Company may commence a new Extension Period,  subject to the above requirements.
No interest during an Extension Period, except at the end thereof,  shall be due
and payable.

          If the Property  Trustee is the sole holder of the  Securities  at the
time the Company selects an Extension  Period,  the Company shall give notice to
the Regular  Trustees,  the Property Trustee and the Trustee of its selection of
such Extension  Period at least one Business Day prior to the earlier of (i) the
date the  distributions  on the Preferred  Securities are payable or (ii) if the
Preferred Securities are listed on the New York Stock Exchange, Inc. ("NYSE") or
other stock exchange or quotation system, the date the Trust is required to give
notice  to the  NYSE or  other  applicable  self-regulatory  organization  or to
holders  of the  Preferred  Securities  on the  record  date  or the  date  such
distributions  are  payable,  but in any event not less than ten  Business  Days
prior to such record date.

                                      A-5









          If the Property  Trustee is not the sole holder of the  Securities  at
the time the Company  selects an Extension  Period,  the Company  shall give the
Holders and the Trustee notice of its selection of an Extension  Period at least
ten  Business  Days  prior to the  earlier of (i) the next  succeeding  Interest
Payment Date or (ii) if the Preferred Securities are listed on the NYSE or other
stock  exchange or  quotation  system,  the date the Company is required to give
notice to NYSE or other applicable self-regulatory organization or to holders of
the Securities on the record or payment date of such related  interest  payment,
but in any event not less than two Business Days prior to such record date.

          The  quarter in which any notice is given  pursuant  to the second and
third  paragraphs  of this  Section 3 shall be counted as one of the 20 quarters
permitted in the maximum Extension Period permitted under the first paragraph of
this Section 3.

          (4) METHOD OF PAYMENT. The interest so payable, and punctually paid or
duly  provided  for,  on any  Interest  Payment  Date will,  as  provided in the
Indenture,  be paid to the  Person in whose name this  Security  (or one or more
Predecessor  Securities)  is  registered at the close of business on the regular
record date for such interest installment,  which shall be the close of business
on the Business Day immediately  preceding each Interest Payment Date; provided,
however,  that,  for so long as the  Securities  are  held by the  Trust  or the
Property  Trustee of the Trust, if any Preferred  Securities (or if the Trust is
liquidated  in  connection  with  Special  Event,  any  Securities)  are held in
certificated  form,  the Record Date for each Interest  Payment Date shall be 15
days  prior to such  Interest  Payment  Date (in each case,  a  "Regular  Record
Date").  Any such  interest not so  punctually  paid or duly  provided for shall
forthwith  cease to be payable to the Holder on such Regular Record Date and may
either  be paid to the  Person  in  whose  name  this  Security  (or one or more
Predecessor  Securities)  is  registered  at the close of  business on a Special
Record  Date  for the  payment  of such  Defaulted  Interest  to be fixed by the
Trustee,  notice of which shall be given to Holders of Securities  not less than
10 days prior to such Special  Record Date,  or be paid at any time in any other
lawful manner not inconsistent with the requirements of any securities  exchange
on which the Securities  may be listed,  and upon such notice as may be required
by such exchange, all as more fully provided in said Indenture.

          Payment of the principal of and interest on this Security will be made
at the office or agency of the Company  maintained for that purpose in New York,
New York,  in such coin or  currency  of the United  States of America as at the
time of  payment  is legal  tender for  payment  of public  and  private  debts;
PROVIDED,  however, that, at the option of the Company,  payment of interest may
be made by check  mailed to the address of the Person  entitled  thereto as such
address shall appear in the Security Register.

          (5) PAYING AGENT, SECURITY REGISTRAR AND CONVERSION AGENT. The Trustee
will act as Paying Agent,  Security  Registrar and Conversion Agent. The Company
may change any Paying  Agent,  Security  Registrar,  co-registrar  or,  with the
consent of the Trust,  Conversion Agent without prior notice. The Company or any
of its Affiliates may act in any such capacity.

                                      A-6









          (6) INDENTURE.  The Company issued the Securities  under an indenture,
dated  as of  October  2,  1996  (the  "Indenture"),  between  the  Company  and
Wilmington  Trust Company,  as Trustee (herein called the "Trustee",  which term
includes any successor trustee under the Indenture),  to which Indenture and all
indentures  supplemental thereto reference is hereby made for a statement of the
respective rights,  limitations of rights,  duties and immunities  thereunder of
the  Trustee,  the  Company  and the  Holders,  and of the terms  upon which the
Securities  are, and are to be,  authenticated  and delivered.  The terms of the
Securities  include  those  stated in the  Indenture  and those made part of the
Indenture  by the Trust  Indenture  Act of 1939 (15 U.S.  Code  Sections  77aaa-
77bbbb)  ("TIA") as in effect on the date of the  Indenture.  The Securities are
subject to, and  qualified by, all such terms,  certain of which are  summarized
hereon, and Holders are referred to the Indenture and the TIA for a statement of
such terms.  The  Securities  are unsecured  general  obligations of the Company
limited to $180,412,350 in aggregate  principal  amount (or  $207,474,200 if the
overallotment option is exercised).  No reference herein to the Indenture and no
provision  of this  Security  or of the  Indenture  shall  alter or  impair  the
obligation  of the  Company,  which is absolute  and  unconditional,  to pay the
principal of and interest on this Security at the times,  place and rate, and in
the coin or currency,  herein prescribed or to convert this Security as provided
in the Indenture.

          (7) OPTIONAL REDEMPTION. The Securities are redeemable, in whole or in
part,  at the  Company's,  option  at any time and from time to time on or after
October 5,  1999,  upon not less than 30 nor more than 60 days'  notice,  at the
following optional redemption prices (expressed as a percentage of the principal
amount of the  Securities)  if redeemed  during the  12-month  period  beginning
October 1 of the year shown below (October 5, in the case of 1999):
                                           Percentage of
                Year                   Principal Year Amount
          ---------------              ---------------------
          2000 . . . . . . . . . . . . . . . 104.050%
          2001 . . . . . . . . . . . . . . . 103.375
          2002 . . . . . . . . . . . . . . . 102.700
          2003 . . . . . . . . . . . . . . . 102.025
          2004 . . . . . . . . . . . . . . . 101.350
          2005 . . . . . . . . . . . . . . . 100.675
          2006  and thereafter . . . . . . . 100.000

plus, in each case, accrued and unpaid interest,  including Additional Interest,
Compounded  Interest and Liquidated  Damages, if any, to the Redemption Date. On
or after the Redemption  Date,  interest will cease to accrue on the Securities,
or portion thereof, called for redemption.

          (8) OPTIONAL  REDEMPTION UPON TAX EVENT. The Securities are subject to
redemption in whole (but not in part), at any time within 90 days thereafter, if
a Tax Event (as defined in the  Declaration)  shall occur and be continuing,  at
the applicable  redemption price set forth above (or, for the period  commencing
on the date of issuance of the Securities through October 4, 1997 and the twelve
month  periods  commencing  October 5, 1997 and October 5, 1998,  the product of
106.750%, 106.075% and 105.400%, respectively, times $50), in each

                                      A-7









case plus accrued but unpaid interest, including Additional Interest, Compounded
Interest and Liquidated  Damages, if any, to the Redemption Date. Any redemption
pursuant  to this  Section 8 will be made upon not less than 30 nor more than 60
days' notice.

          (9) NOTICE OF REDEMPTION. Notice of redemption will be mailed at least
30 days but not more than 60 days before the  Redemption  Date to each Holder of
the  Securities  to be  redeemed  at his address of record.  The  Securities  in
denominations  larger  than $50 may be  redeemed  in part  but only in  integral
multiples  of  $50.  In the  event  of a  redemption  of  less  than  all of the
Securities,  the  Securities  will be chosen for  redemption  by the  Trustee in
accordance with the Indenture. On and after the Redemption Date, interest ceases
to accrue on the Securities or portions of them called for  redemption.  If this
Security is redeemed  subsequent  to a Regular  Record Date with  respect to any
Interest  Payment Date specified above and on or prior to such Interest  Payment
Date,  then any accrued  interest  will be paid to the person in whose name this
Security is registered at the close of business on such record date.

          (10)  REDEMPTION.  The Securities  will mature on October 1, 2016, and
may be redeemed,  in whole or in part,  at any time after October 5, 1999 as set
forth above or at any time in certain circumstances upon the occurrence of a Tax
Event as set forth  above.  Upon the  repayment  of the  Securities,  whether at
maturity or upon  redemption,  the proceeds from such repayment or payment shall
simultaneously  be  applied  to redeem  Trust  Securities  having  an  aggregate
liquidation  amount  equal  to the  Securities  so  repaid  or  redeemed  at the
applicable  redemption  price  together  with  accrued and unpaid  distributions
through the date of redemption;  PROVIDED,  that holders of the Trust Securities
shall be given not less than 30 nor more than 60 days notice of such redemption.
Upon the  repayment  of the  Securities  at maturity  or upon any  acceleration,
earlier  redemption  or  otherwise,  the proceeds  from such  repayment  will be
applied to redeem the Preferred Securities,  in whole, upon not less than 30 nor
more than 60 days'  notice.  There are no sinking fund  payments with respect to
the Securities.

          (11) CONVERSION. The Holder of any Security has the right, exercisable
at any time prior to the close of business  (New York time) on the  Business Day
immediately preceding the date of repayment of such Security whether at maturity
or upon  redemption  (either at the option of the  Company or  pursuant to a Tax
Event),  to convert the principal amount thereof (or any portion thereof that is
an integral  multiple of $50) into the number of shares of Common Stock obtained
by dividing  $50 per  Security by the  applicable  conversion  price  (initially
$28.75 per share of Common Stock for each Security)  (equivalent to a conversion
rate of 1.739  shares per share of Common  Stock of the Company  per  Security),
subject to adjustment under certain circumstances as set forth in the Indenture.

          To  convert  a  Security,  a  Holder  must  (1)  complete  and  sign a
conversion notice  substantially in the form attached hereto,  (2) surrender the
Security to a Conversion Agent, (3) furnish appropriate endorsements or transfer
documents if required by the Security  Registrar or Conversion Agent and (4) pay
any transfer or similar tax, if required.  Upon  conversion,  no  adjustment  or
payment will be made for interest or dividends,  but if any Holder  surrenders a
Security for  conversion  after the close of business on the Regular Record Date
for the payment

                                      A-8









of an  installment  of interest and prior to the opening of business on the next
Interest  Payment Date,  then,  notwithstanding  such  conversion,  the interest
payable on such Interest  Payment Date will be paid to the registered  Holder of
such Security on such Regular Record Date. In such event,  such  Security,  when
surrendered  for  conversion,  need not be  accompanied  by payment of an amount
equal to the interest  payable on such  Interest  Payment Date on the portion so
converted.  The number of shares  issuable  upon  conversion  of a  Security  is
determined  by dividing the  principal  amount of the Security  converted by the
conversion price in effect on the Conversion Date. No fractional  shares will be
issued upon  conversion  but a cash  adjustment  will be made for any fractional
interest.  The Outstanding  principal amount of any Security shall be reduced by
the portion of the  principal  amount  thereof  converted  into shares of Common
Stock.

          (12) REGISTRATION RIGHTS. The holders of the Preferred Securities, the
Securities, the Guarantee and the shares of Common Stock of the Company issuable
upon conversion of the Securities  (collectively,  the "REGISTRABLE SECURITIES")
are entitled to the benefits of a  Registration  Rights  Agreement,  dated as of
October 2, 1996,  among the Company,  the Trust and the Initial  Purchasers (the
"Registration Rights Agreement"). Pursuant to the Registration Rights Agreement,
the Company has agreed for the benefit of the holders of Registrable  Securities
that (i) it will, at its cost,  within 75 days after the date of issuance of the
Registrable  Securities,   file  a  shelf  registration  statement  (the  "Shelf
Registration  Statement")  with the  Commission  with  respect to resales of the
Registrable  Securities,  (ii) it will use its reasonable efforts to cause, such
Shelf  Registration  Statement to be declared effective by the Commission within
135 days after the date of issuance of the Registrable  Securities and (iii) the
Company  will use its  reasonable  efforts to maintain  such Shelf  Registration
Statement  continuously  effective  under  the  Securities  Act  until the third
anniversary of the  effectiveness  of the Shelf  Registration  Statement or such
earlier date as is provided in the Registration  Rights Agreement.  Reference is
made to the  Registration  Rights  Agreement for a  description  of, among other
things, the circumstances  under which a "Registration  Default" may be declared
if such Shelf  Registration  Statement is not filed or is not declared effective
within a specified period of time, and additional interest  "Liquidated Damages"
may accrue and by payable on the  Securities as a result of such a  Registration
Default.

          (13) REGISTRATION,  TRANSFER, EXCHANGE AND DENOMINATIONS.  As provided
in the  Indenture  and subject to certain  limitations  therein  set forth,  the
transfer  of  this  Security  is  registrable  in the  Security  Register,  upon
surrender of this Security for  registration of transfer at the office or agency
of the Company in New York, New York or Wilmington,  Delaware, duly endorsed by,
or accompanied by a written  instrument of transfer in form  satisfactory to the
Company and the Security  Registrar  duly  executed by, the Holder hereof or his
attorney duly  authorized in writing,  and thereupon one or more new Securities,
of authorized denominations and for the same aggregate principal amount, will be
issued to the designated transferee or transferees.

          The Securities are issuable only in registered form without coupons in
denominations of $50 and integral multiples thereof.  No service charge shall be
made for any

                                      A-9









such  registration of transfer or exchange,  but the Company may require payment
of a sum  sufficient to cover any tax or other  governmental  charge  payable in
connection therewith. Prior to due presentment of this Security for registration
of  transfer,  the  Company,  the  Trustee  and any agent of the  Company or the
Trustee may treat the Person in whose name this  Security is  registered  as the
owner  hereof for all  purposes,  whether or not this  Security be overdue,  and
neither the Company,  the Trustee nor any such agent shall be affected by notice
to the  contrary.  In the event of  redemption or conversion of this Security in
part only,  a new  Security or  Securities  for the  unredeemed  or  unconverted
portion  hereof  will be  issued  in the  name of the  Holder  hereof  upon  the
cancellation hereof.

          (14) PERSONS  DEEMED  OWNERS.  Except as provided in Section 4 hereof,
the  registered  Holder  of a  Security  may be  treated  as its  owner  for all
purposes.

          (15)  UNCLAIMED  MONEY.  If money  for the  payment  of  principal  or
interest remains unclaimed for two years, the Trustee and the Paying Agent shall
pay the money back to the Company at its written request. After that, holders of
Securities  entitled to the money must look to the Company for payment unless an
abandoned  property  law  designates  another  Person and all  liability  of the
Trustee and such Paying Agent with respect to such money shall cease.

          (16) DEFAULTS AND REMEDIES.  The  Securities  shall have the Events of
Default  as set  forth in  Section  501 of the  Indenture.  Subject  to  certain
limitations in the  Indenture,  if an Event of Default occurs and is continuing,
the  Trustee  by  notice  to the  Company,  or the  holders  of at least  25% in
aggregate  principal amount of the then Outstanding  Securities by notice to the
Company and the Trustee,  may declare all the  Securities  to be due and payable
immediately.

          The holders of a majority in principal  amount of the Securities  then
Outstanding by written notice to the Trustee may rescind an acceleration and its
consequences  if the rescission is prior to a judgment or decree for the payment
of the money due has been  obtained by the Trustee as provided in the  Indenture
and if all  existing  Events  of  Default  have  been  cured  or  waived  except
nonpayment of principal  and/or  interest that has become due solely  because of
the acceleration. Holders may not enforce the Indenture or the Securities except
as  provided  in the  Indenture.  Subject to certain  limitations,  holders of a
majority in principal amount of the then Outstanding Securities issued under the
Indenture  may direct the  Trustee in its  exercise  of any trust or power.  The
Company must furnish annually compliance  certificates to the Trustee. The above
description  of Events of Default and remedies is qualified by reference to, and
subject in its entirety by, the more complete  description  thereof contained in
the Indenture.

          (17) AMENDMENTS,  SUPPLEMENTS AND WAIVERS. The Indenture permits, with
certain   exceptions  as  therein  provided,   the  amendment  thereof  and  the
modification  of the rights and obligations of the Company and the rights of the
Holders of the Securities under the Indenture at any time by the Company and the
Trustee  with the consent of the Holders of a majority  in  aggregate  principal
amount of the  Securities at the time  Outstanding.  The Indenture also contains
provisions   permitting  the  Holders  of  specified  percentages  in  aggregate
principal  amount of the  Securities at the time  Outstanding,  on behalf of the
Holders of all the Securities,

                                      A-10









to waive compliance by the Company with certain  provisions of the Indenture and
certain past  defaults  under the  Indenture  and their  consequences.  Any such
consent or waiver by the Holder of this Security shall be conclusive and binding
upon  such  Holder  and upon all  future  Holders  of this  Security  and of any
Security issued upon the  registration of transfer hereof or in exchange herefor
or in lieu  hereof,  whether or not  notation of such  consent or waiver is made
upon this Security.

          (18) TRUSTEE DEALINGS WITH THE COMPANY. The Trustee, in its individual
or any other  capacity may become the owner or pledgee of the Securities and may
otherwise  deal with the Company or an  Affiliate  with the same rights it would
have, as if it were not Trustee,  subject to certain limitations provided for in
the Indenture and in the TIA. Any Agent may do the same with like rights.

          (19) NO RECOURSE  AGAINST  OTHERS.  A director,  officer,  employee or
stockholder,  as such,  of the  Company  shall  not have any  liability  for any
obligations  of the Company  under the  Securities  or the  Indenture or for any
claim  based  on,  in  respect  of or by  reason  of such  obligations  or their
creation.  Each Holder of the  Securities  by  accepting  a Security  waives and
releases  all  such   liability.   The  waiver  and  release  are  part  of  the
consideration for the issue of the Securities.

          (20) GOVERNING LAW. THE INDENTURE AND THE SECURITIES SHALL BE GOVERNED
BY AND  CONSTRUED IN  ACCORDANCE  WITH THE LAWS OF THE STATE OF NEW YORK WITHOUT
REGARD TO CONFLICT OF LAW PROVISIONS THEREOF.

          (21)   AUTHENTICATION.   The  Securities  shall  not  be  valid  until
authenticated by the manual signature of an authorized  signatory of the Trustee
or an authenticating agent.

          The Company will furnish to any Holder of the Securities  upon written
request and without charge a copy of the Indenture. Request may be made to:

          Vanstar Corporation
          5964 West Las Positas Boulevard
          Pleasanton, California 94588-9012
          Attention of: Chief Financial Officer
          Facsimile: (510) 734-0760


                                      A-11










                                 ASSIGNMENT FORM


     To assign this Security, fill in the form below:

     (I) or (we) assign and transfer this Security to


- --------------------------------------------------------------------------------
               (Insert assignee's social security or tax I.D. no.)
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
              (Print or type assignee's name, address and zip code)
and irrevocably appoint ________________________________________________________
agent to  transfer  this  Security  on the books of the  Company.  The agent may
substitute another to act for him.

                            Your Signature: -----------------------------
                            (Sign exactly as your name appears on the
                            other side of this Security)
                            Date: ---------------------------------------
                            Signature Guarantee:* -----------------------

[Include the following if the Security bears a Restricted Securities Legend --
In  connection  with any  transfer of any of the  Securities  evidenced  by this
certificate, the undersigned confirms that such Securities are being:
CHECK ONE BOX BELOW

     (1)  / /    exchanged for the undersigned's own account without transfer;
                 or

     (2)  / /    transferred  pursuant to and in  compliance  with Rule 144A
                 under the Securities Act of 1933; or


- ------------------

     *Signature must be guaranteed by a commercial bank, trust company or member
firm of the NYSE.










     (3) / /     transferred pursuant to and in compliance with Regulation S
                 under the Securities Act of 1933; or

     (4) / /     transferred  pursuant to another  available  exemption from
                 the registration requirements of the Securities Act of 1933; or

     (5) / /     transferred  pursuant to an effective  Shelf  Registration
                 Statement.

Unless one of the boxes is checked,  the Trustee  will refuse to register any of
the  Securities  evidenced by this  certificate  in the name of any person other
than the registered Holder thereof; PROVIDED, HOWEVER, that if box (3) or (4) is
checked, the Trustee may require,  prior to registering any such transfer of the
Securities  such legal  opinions,  certifications  and other  information as the
Company has  reasonably  requested to confirm  that such  transfer is being made
pursuant  to an  exemption  from,  or  in a  transaction  not  subject  to,  the
registration  requirements  of the Securities Act of 1933, such as the exemption
provided by Rule 144 under such Act.


                                       -----------------------------------
                                       Signature
Signature Guarantee:*

- -----------------------------          --------------------------------- ] 
Signature must be guaranteed
Signature

- --------------------------------------------------------------------------
             [TO BE COMPLETED BY PURCHASER IF (2) ABOVE IS CHECKED.
     The undersigned represents and warrants that it is purchasing this Security
for its own  account  or an account  with  respect  to which it  exercises  sole
investment  discretion  and  that  it  and  any  such  account  is a  "qualified
institutional buyer" within the meaning of Rule 144A under the Securities Act of
1933,  and is aware that the sale to it is being made in  reliance  on Rule 144A
and acknowledges that it has received such information  regarding the Company as
the  undersigned  has requested  pursuant to Rule 144A or has  determined not to
request such  information  and that it is aware that the  transferor  is relying
upon the undersigned's foregoing representations in order to claim the exemption
from registration provided by Rule 144A.


Dated:
      -------------------------    ---------------------------------------
                                   NOTICE: To be executed by an executive
                                   officer.]

- --------------

     *Signature must be guaranteed by a commercial bank, trust company or member
firm of the NYSE.

                                      -2-








                      [TO BE ATTACHED TO GLOBAL SECURITIES]

                                   SCHEDULE A

     The initial  principal amount of this Global Security shall be $__________.
The  following  increases or decreases  in the  principal  amount of this Global
Security have been made:


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                AMOUNT OF INCREASE IN
               PRINCIPAL AMOUNT OF THIS
              GLOBAL SECURITY INCLUDING     AMOUNT OF DECREASE IN    PRINCIPAL AMOUNT OF THIS   SIGNATURE OF AUTHORIZED
                UPON EXERCISE OF OVER-    PRINCIPAL AMOUNT OF THIS   GLOBAL SECURITY FOLLOWING   OFFICER OF TRUSTEE OR
  DATE MADE       ALLOTMENT OPTION            GLOBAL SECURITY        SUCH DECREASE OR INCREASE    SECURITIES CUSTODIAN
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                                      -3-









                               ELECTION TO CONVERT

To:  Vanstar Corporation

     The  undersigned  owner of this Security hereby  irrevocably  exercises the
option to convert this Security,  or the portion below  designated,  into Common
Stock of  Vanstar  Corporation  in  accordance  with the terms of the  Indenture
referred  to in  this  Security,  and  directs  that  the  shares  issuable  and
deliverable upon  conversion,  together with any check in payment for fractional
shares,  be issued in the name of and  delivered  to the  undersigned,  unless a
different name has been indicated in the assignment  below.  If shares are to be
issued in the name of a person other than the undersigned,  the undersigned will
pay all transfer taxes payable with respect thereto.

     Any holder,  upon the exercise of its conversion  rights in accordance with
the terms of the Indenture and the Security,  agrees to be bound by the terms of
the  Registration  Rights  Agreement  relating to the Common Stock issuable upon
conversion of the Securities.

Date:
     -------------------------

      in whole _____               Portions of Security to be in part converted
      in part  _____               ($50 or integral multiples thereof):

                                   $
                                     -----------------------------------------

                                   -------------------------------------------
                                   Signature (for conversion only)
                                   Please Print or Typewrite Name and Address,
                                   Including Zip Code, and Social Security or
                                   Other Identifying Number


                                   -------------------------------------------
                                   -------------------------------------------
                                   -------------------------------------------
                                   Signature Guarantee:*
                                                         ---------------------
- ------------------

     *Signature must be guaranteed by a commercial bank, trust company or member
firm of the New York Stock Exchange.