FORM OF

                             DISTRIBUTION AGREEMENT

                                 BY AND BETWEEN

                                   AT&T CORP.

                                       AND

                                 NCR CORPORATION




                           DATED AS OF ________, 1996



                             DISTRIBUTION AGREEMENT


                  THIS DISTRIBUTION AGREEMENT, dated as of ___________, 1996, is
by and between  AT&T and NCR.  Capitalized  terms used herein and not  otherwise
defined shall have the respective meanings assigned to them in
Article I hereof.

                  WHEREAS, the Board of Directors of AT&T has determined that it
is in the  best  interests  of AT&T  and its  shareholders  to  separate  AT&T's
existing businesses into three independent businesses;

                  WHEREAS, in furtherance of the foregoing, AT&T, NCR and Lucent
have executed and delivered the Separation and Distribution  Agreement providing
for, among other things,  the initial public offering of shares of Lucent Common
Stock  (which  was  consummated  on  April  10,  1996)  and  for  the  pro  rata
distribution  by  AT&T  of all of its  shares  of  Lucent  Common  Stock  to the
shareholders of AT&T;

                  WHEREAS, AT&T, NCR and Lucent have also executed and delivered
the  Ancillary  Agreements  (as  such  term is  defined  in the  Separation  and
Distribution  Agreement)  governing certain  additional  matters relating to the
Lucent Distribution;

                  WHEREAS,  the Board of Directors  of AT&T has also  determined
that AT&T will  distribute to its  shareholders  all of the capital stock of NCR
held  directly or indirectly by AT&T,  subject to the terms and  conditions  set
forth herein;

                  WHEREAS, the NCR Distribution is intended to
qualify as a
tax-free spin-off under Section 355 of the Code;

                  WHEREAS,  it is appropriate and desirable to set forth certain
agreements that will govern certain matters relating to the NCR Distribution and
the relationship of AT&T and NCR and their respective Subsidiaries following the
NCR Distribution.

                  NOW,  THEREFORE,  the parties,  intending to be
legally bound,
agree as follows:


                                    ARTICLE I
                                   DEFINITIONS

                  For the purpose of this  Agreement the  following  terms shall
have the following meanings:

                  1.1. ACTION has the meaning set forth in the
Separation and
Distribution Agreement.

                  1.2. ADJUSTMENT has the meaning set forth in the
Tax Sharing
Agreement.

                  1.3. AFFILIATE has the meaning set forth in the
Separation and
Distribution Agreement.



                  1.4.  AGENT means the  distribution  agent to be  appointed by
AT&T to  distribute,  or make book entry  credits  for, the shares of NCR Common
Stock held by AT&T pursuant to the NCR Distribution.

                  1.5. AGREEMENT means this Distribution
Agreement, including all of the Schedules hereto.

                  1.6. ANCILLARY AGREEMENTS has the meaning set
forth in the
Separation and Distribution Agreement.

                  1.7. APPLICABLE DEADLINE has the meaning set
forth in the
Separation and Distribution Agreement.

                  1.8. ARBITRATION ACT has the meaning set forth
in the
Separation and Distribution Agreement.

                  1.9. ARBITRATION DEMAND NOTICE has the meaning
set forth in
the Separation and Distribution Agreement.

                  1.10. ASSETS has the meaning set forth in the
Separation and
Distribution Agreement.

                  1.11. AT&T means AT&T Corp., a New York
corporation.

                  1.12. AT&T COMMON STOCK means the Common Stock,
$1.00 par
value per share, of AT&T.

                  1.13. AT&T GROUP has the meaning set forth in
the Separation
and Distribution Agreement.

                  1.14. AT&T INDEMNITEES has the meaning set forth
in Section
4.2 hereof.

                  1.15. AT&T SERVICES BUSINESS has the meaning set
forth in the
Separation and Distribution Agreement.

                  1.16.  AT&T SERVICES GROUP means each member of
the AT&T Group
other than any member of the NCR Group.

                  1.17. AT&T VOLUME PURCHASE AGREEMENT means the
Volume Purchase
Agreement, dated as of the date hereof, as amended, by and between
AT&T and NCR.

                  1.18. CLOSING DATE has the meaning set forth in
the Separation
and Distribution Agreement.

                  1.19. CODE means the Internal Revenue Code of
1986, as
amended.






                  1.20. COMMISSION means the Securities and
Exchange Commission.

                  1.21. CONSENTS means any consents, waivers or
approvals from,
or notification requirements to, any third parties.

                  1.22. DETERMINATION REQUEST has the meaning set
forth in the
Separation and Distribution Agreement.

                  1.23.  EXCHANGE ACT means the Securities Exchange Act of 1934,
as amended, together with the rules and regulations promulgated thereunder.

                  1.24. GOVERNMENTAL APPROVALS has the meaning set
forth in the
Separation and Distribution Agreement.

                  1.25. GOVERNMENTAL AUTHORITY has the meaning set
forth in the
Separation and Distribution Agreement.

                  1.26. GROUP means any of the AT&T Services
Group, the Lucent
Group or the NCR Group, as the context requires.

                  1.27. INDEMNIFYING PARTY has the meaning set
forth in Section
4.4(a) hereof.

                  1.28. INDEMNITEE has the meaning set forth in
Section 4.4(a)
hereof.

                  1.29. INDEMNITY PAYMENT has the meaning set
forth in Section
4.4(a) hereof.

                  1.30. INSURANCE PROCEEDS has the meaning set
forth in the
Separation and Distribution Agreement.

                  1.31. IPO has the meaning set forth in the
Separation and
Distribution Agreement.

                  1.32. LIABILITIES has the meaning set forth in
the Separation
and Distribution Agreement.

                  1.33. LUCENT means Lucent Technologies Inc., a
Delaware
corporation.

                  1.34. LUCENT COMMON STOCK means the Common
Stock, $.01 par value per share, of Lucent.

                  1.35. LUCENT  DISTRIBUTION means the distribution by AT&T on a
pro rata basis to holders of AT&T Common Stock of all of the outstanding  shares
of  Lucent  Common  Stock  owned  by  AT&T as set  forth  in  Article  IV of the
Separation and Distribution Agreement.







                  1.36. LUCENT GROUP has the meaning set forth in
the Separation
and Distribution Agreement.

                  1.37. LUCENT INDEMNITEES has the meaning set
forth in the
Separation and Distribution Agreement.

                  1.38. NCR means NCR Corporation, a Maryland
corporation.

                  1.39. NCR ANCILLARY  AGREEMENTS means the AT&T
Volume Purchase
Agreement, the NCR Employee Benefits Agreement, the Procedures
Agreement and the
agreements related or supplemental to this Agreement or to any of
the foregoing.

                  1.40. NCR BUSINESS means (a) the computer  products,  computer
systems,  data processing and information  solutions  business and operations as
conducted  by NCR  and its  Subsidiaries;  (b)  except  as  otherwise  expressly
provided herein or in the Separation and Distribution Agreement, any terminated,
divested  or  discontinued  businesses  or  operations  (i)  that at the time of
termination,  divestiture  or  discontinuation  primarily  related  to  the  NCR
Business as then  conducted,  or (ii) that were  conducted by NCR, by any Person
that at any time was an  Affiliate  of NCR  prior to the  acquisition  of NCR by
AT&T,  or by any  Person  that  at any  time  was  controlled  by  NCR;  (c) the
terminated,  divested  or  discontinued  businesses  and  operations  listed  or
described on Schedule 1.75 to the Separation and Distribution Agreement; and (d)
any business or operation  conducted by NCR or any  Affiliate of NCR at any time
on or after the NCR Distribution Date.

                  1.41. NCR COMMON STOCK means the Common Stock,
par value $.01
per share, of NCR.

                  1.42. NCR COVERED LIABILITIES has the meaning
set forth in the
Separation and Distribution Agreement.

                  1.43. NCR DISTRIBUTION means the distribution by AT&T on a pro
rata basis to holders of AT&T Common Stock of all of the  outstanding  shares of
NCR  Common  Stock  owned by AT&T on the NCR  Distribution  Date as set forth in
Article II of this Agreement.

                  1.44. NCR DISTRIBUTION DATE means the date determined pursuant
to Section 2.3 of this Agreement on which the NCR Distribution occurs.

                  1.45.  NCR  EMPLOYEE  BENEFITS  AGREEMENT  means
the  Employee
Benefits Agreement, dated as of the date hereof, as amended, by
and between AT&T
and NCR.

                  1.46. NCR FORM 10 means the Registration  Statement on Form 10
to be filed by NCR with the Commission in connection with the NCR Distribution.

                  1.47. NCR GROUP has the meaning set forth in the
Separation
and Distribution Agreement.







                  1.48. NCR INDEMNITEES has the meaning set forth
in Section
4.3(a) hereof.

                  1.49.  NCR   INFORMATION   STATEMENT   means  the  Information
Statement  constituting  a part of the NCR Form 10, which will be mailed to AT&T
shareholders in connection with the NCR Distribution.

                  1.50.  NCR INSURANCE  POLICIES  means the  insurance  policies
written by insurance  carriers  unaffiliated  with AT&T pursuant to which NCR or
one or more of its Subsidiaries (or their respective officers or directors) will
be insured parties after the NCR Distribution Date.

                  1.51.  NCR RECORD  DATE  means the time at which the  transfer
agent for the AT&T  Common  Stock  closes its  transfer  records for AT&T Common
Stock on the date to be  determined by the AT&T Board of Directors as the record
date for  determining  shareholders  of AT&T  entitled  to receive  the  special
dividend of shares of NCR Common Stock in the NCR Distribution.

                  1.52. NYSE means The New York Stock Exchange,
Inc.

                  1.53. PERSON has the meaning set forth in the
Separation and
Distribution Agreement.

                  1.54.  PREFERRED  SHARE PURCHASE  RIGHTS mean the Rights to be
issued pursuant to a Rights  Agreement  substantially  in the form of the Rights
Agreement attached as an Exhibit to the NCR Form 10.

                  1.55. PROCEDURES AGREEMENT means the Procedures
Agreement,
dated as of the date hereof, as amended, by and between AT&T and
NCR.

                  1.56. RESTRUCTURING ADJUSTMENT has the meaning
set forth in
the Tax Sharing Agreement.

                  1.57.  SECURITIES  ACT means the  Securities
Act of 1933,  as
amended, together with the rules and regulations promulgated
thereunder.

                  1.58. SECURITY INTEREST has the meaning set
forth in the
Separation and Distribution Agreement.

                  1.59. SEPARATION has the meaning set forth in
the Separation
and Distribution Agreement.

                  1.60.   SEPARATION  AND   DISTRIBUTION   AGREEMENT  means  the
Separation and Distribution Agreement,  dated as of February 1, 1996, as amended
and restated as of March 29, 1996, by and among AT&T, Lucent and NCR,  including
the Schedules thereto.







                  1.61. SHARED CONTINGENT LIABILITY has the
meaning set forth in
the Separation and Distribution Agreement.

                  1.62. SUBSIDIARY has the meaning set forth in
the Separation
and Distribution Agreement.

                  1.63. TAX SHARING AGREEMENT has the meaning set
forth in the
Separation and Distribution Agreement.

                  1.64. TAXES has the meaning set forth in the Tax
Sharing
Agreement.

                  1.65. THIRD PARTY CLAIM has the meaning set
forth in Section
4.5(a) hereof.

                  1.66.   TRANSACTION  AGREEMENTS  means,
collectively,   this
Agreement,  the  NCR  Ancillary  Agreements,  the  Separation
and  Distribution
Agreement and the Ancillary Agreements.


                                   ARTICLE II
                                THE DISTRIBUTION

                  2.1. THE  DISTRIBUTION.  (a) Subject to Section 2.3 hereof, on
or prior to the NCR  Distribution  Date,  AT&T will deliver to the Agent for the
benefit of  holders of record of AT&T  Common  Stock on the NCR Record  Date,  a
single  stock  certificate  representing  all of the  outstanding  shares of NCR
Common  Stock  then  beneficially  owned  by  AT&T  or any of its  wholly  owned
Subsidiaries,  and shall cause the transfer  agent for the shares of AT&T Common
Stock to instruct the Agent on the NCR  Distribution  Date either to distribute,
or make  book-entry  credits for, the  appropriate  number of such shares of NCR
Common Stock to each such holder of AT&T Common Stock or  designated  transferee
or transferees of such holder.

                  (b) Subject to Section  2.4,  each holder of AT&T Common Stock
on the NCR Record Date (or such holder's  designated  transferee or transferees)
will be  entitled to receive in the NCR  Distribution  a number of shares of NCR
Common  Stock  equal to the number of shares of AT&T  Common  Stock held by such
holder on the NCR Record Date  multiplied by a fraction,  the numerator of which
is the number of shares of NCR Common Stock beneficially owned by AT&T or any of
its wholly  owned  Subsidiaries  on the NCR Record Date and the  denominator  of
which is the number of shares of AT&T Common Stock outstanding on the NCR Record
Date.

                  (c) Each of NCR and AT&T,  as the case may be, will provide to
the  Agent all  share  certificates  and any  information  required  in order to
complete the NCR Distribution on the terms contemplated hereby.

                  2.2. ACTIONS PRIOR TO THE NCR DISTRIBUTION. (a)
AT&T and NCR
shall prepare and mail, prior to the NCR Distribution Date, to the
holders of
AT&T Common






Stock,  the  NCR  Information  Statement,  which  shall  set  forth  appropriate
disclosure  concerning NCR, the NCR  Distribution and such other matters as AT&T
and NCR may determine.  AT&T and NCR shall prepare,  and NCR shall file with the
Commission, the NCR Form 10, which shall include or incorporate by reference the
NCR  Information  Statement.  NCR shall use its reasonable best efforts to cause
the NCR Form 10 to be  declared  effective  under  the  Exchange  Act as soon as
practicable following the filing thereof.

                  (b)  AT&T  and  NCR  shall  take  all  such  action  as may be
necessary or  appropriate  under the  securities  or blue sky laws of the United
States (and any comparable  laws under any foreign  jurisdiction)  in connection
with the NCR Distribution.

                  (c) NCR shall prepare and file,  and shall use its  reasonable
best efforts to have approved,  an application for the listing of the NCR Common
Stock (and related Preferred Share Purchase Rights) to be distributed in the NCR
Distribution  on the  NYSE or  another  mutually  agreeable  stock  exchange  or
quotations system.

                  2.3. CONDITIONS TO THE NCR DISTRIBUTION.  The
AT&T Board shall
have  the  sole  discretion  to  determine  the  NCR  Record
Date  and  the NCR
Distribution  Date, and all  appropriate  procedures in connection  with the NCR
Distribution,  provided that the NCR Distribution  shall not occur prior to such
time as each of the following conditions shall have been satisfied or shall have
been waived by the AT&T Board in its sole discretion:

                  (a) a private letter ruling from the Internal
Revenue Service
         shall have been obtained,  and shall continue in effect,
to the effect
         that,  among  other  things,  the NCR  Distribution
will  qualify as a
         tax-free distribution for federal income tax purposes
under Section 355
         of  the  Code,   and  such  ruling  shall  be  in  form
and  substance
         satisfactory to AT&T in its sole discretion;

                  (b) any material Governmental Approvals and
Consents necessary
         to consummate the NCR  Distribution  shall have been
obtained and be in
         full force and effect;

                  (c) no  order,  injunction  or  decree  issued
by any court or
         agency  of  competent   jurisdiction   or  other  legal
restraint  or
         prohibition  preventing the consummation of the NCR
Distribution  shall
         be in effect and no other event shall have  occurred or
failed to occur
         that prevents the consummation of the NCR Distribution;

                  (d) the NCR Form 10 shall have been declared
effective by the
         Commission;

                  (e) AT&T shall have  received a  favorable
response  from the
         Staff of the Commission to a request for a no-action
letter concerning,
         among  other  matters,   whether  the  NCR
Distribution  and  related
         transactions  may be effected  without  registration  of
the NCR Common
         Stock  (and  related   Preferred  Share  Purchase
Rights)  under  the
         Securities Act;







                  (f) the NCR Common Stock (and related Preferred
Share Purchase
         Rights)  shall have been  accepted  for  listing by the
NYSE or another
         mutually agreeable stock exchange or quotations system;
and

                  (g) the AT&T Board shall have formally approved
the
         Distribution;

provided  that  the  satisfaction  of  such  conditions  shall  not  create  any
obligation on the part of AT&T,  NCR or any other Person to effect or to seek to
effect the NCR  Distribution  or in any way limit AT&T's right to terminate this
Agreement  as set forth in  Section  7.1 or alter the  consequences  of any such
termination from those specified in Section 7.2.

                  2.4.   FRACTIONAL   SHARES.   No   certificates   representing
fractional  shares of NCR Common  Stock will be  distributed  to holders of AT&T
Common Stock in the NCR Distribution.  Holders that receive  certificates in the
NCR  Distribution  and  holders  that  receive  less than one whole share of NCR
Common Stock in the NCR Distribution will receive cash in lieu of such
fractional  shares as contemplated  hereby. As soon as practicable after the NCR
Distribution  Date,  AT&T  shall  direct  the Agent to  determine  the number of
fractional  shares of NCR Common  Stock  allocable  to each  holder of record or
beneficial  owner of AT&T Common  Stock as of the Record Date that will  receive
cash in lieu of such fractional  shares, to aggregate all such fractional shares
and sell the whole shares obtained by aggregating such fractional  shares either
in open  market  transactions  or  otherwise,  in each  case at then  prevailing
trading  prices,  and to cause to be  distributed to each such holder or for the
benefit of each such  beneficial  owner, in lieu of any fractional  share,  such
holder's or owner's  ratable  share of the  proceeds of such sale,  after making
appropriate  deductions of the amount required to be withheld for federal income
tax purposes  and after  deducting  an amount  equal to all  brokerage  charges,
commissions and transfer taxes attributed to such sale. AT&T and the Agent shall
use their  reasonable  best efforts to aggregate the shares of AT&T Common Stock
that may be held by any beneficial  owner thereof  through more than one account
in determining the fractional share allocable to such beneficial owner.


                                   ARTICLE III
               CERTAIN AGREEMENTS RELATING TO THE NCR DISTRIBUTION

                  3.1. NCR ANCILLARY AGREEMENTS. Effective as of
the date
hereof, each of AT&T and NCR are executing and delivering each of
the NCR
Ancillary Agreements.

                  3.2. THE NCR BOARD.  NCR and AT&T shall take all actions which
may be required to elect or  otherwise  appoint as directors of NCR, on or prior
to the NCR Distribution Date, the persons named in the NCR Form 10 to constitute
the Board of Directors of NCR on the NCR Distribution Date.

                  3.3.  NCR  CHARTER,  BYLAWS  AND  RIGHTS.  Prior  to  the  NCR
Distribution Date, (a) AT&T shall cause Articles of Amendment and Restatement of
NCR,  substantially  in the form  filed  with the NCR Form 10,  to be filed  for
record with the Maryland State  Department of Assessments and Taxation and to be
in effect on the NCR Distribution Date,






and (b) the Board of  Directors of NCR shall amend the Bylaws of NCR so that the
NCR Bylaws are  substantially  in the form filed with the NCR Form 10.  Prior to
the NCR Record Date,  the Board of Directors of NCR shall  declare a dividend of
the  Preferred  Share  Purchase  Rights so that each share of NCR  Common  Stock
issued and  outstanding on the NCR  Distribution  Date shall  initially have one
Preferred Share Purchase Right attached thereto.

                  3.4. TERMINATION OF INTERCOMPANY AGREEMENTS. (a) Except as set
forth in Section 3.4(b) or Section  2.4(b) of the  Separation  and  Distribution
Agreement or Schedule  2.4(b)(ii)  thereto,  in  furtherance of the releases and
other provisions of Section 4.1 hereof, NCR and each member of the NCR Group, on
the one hand, and AT&T and the respective members of the AT&T Services Group, on
the  other  hand,  hereby  terminate  any  and  all  agreements,   arrangements,
commitments or understandings,  whether or not in writing,  between or among NCR
and/or any member of the NCR Group,  on the one hand, and AT&T and/or any member
of the  AT&T  Services  Group,  on  the  other  hand,  effective  as of the  NCR
Distribution  Date. No such  terminated  agreement,  arrangement,  commitment or
understanding  (including  any  provision  thereof  which  purports  to  survive
termination)  shall be of any further force or effect after the NCR Distribution
Date. Each party shall, at the reasonable  request of any other party,  take, or
cause to be  taken,  such  other  actions  as may be  necessary  to  effect  the
foregoing.

                  (b) The provisions of Section 3.4(a) shall not apply to any of
the following agreements, arrangements, commitments or understandings (or to any
of the  provisions  thereof):  (i) the  Transaction  Agreements  (and each other
agreement or instrument expressly  contemplated by any Transaction  Agreement to
be  entered  into by any of the  parties  hereto or any of the  members of their
respective   Groups);   (ii)  any  agreements,   arrangements,   commitments  or
understandings listed or described on Schedule 3.4(b)(ii); (iii) any agreements,
arrangements,  commitments or  understandings to which any Person other than the
parties hereto and their  respective  Affiliates is a party;  (iv) except as set
forth in Schedule  3.4(b)(iv),  any  intercompany  accounts  payable or accounts
receivable  accrued as of the NCR  Distribution  Date that are  reflected in the
books  and  records  of the  parties  or  otherwise  documented  in  writing  in
accordance with past practices; (v) any agreements, arrangements, commitments or
understandings  to which  AT&T  Capital  Corporation,  any  member of the Lucent
Group, or any other  non-wholly owned Subsidiary of AT&T or NCR, as the case may
be, is a party (it being understood that directors' qualifying shares or similar
interests will be disregarded  for purposes of determining  whether a Subsidiary
is wholly owned);  (vi) any written Tax sharing or Tax allocation  agreements to
which  any  member of any  Group is a party;  and  (vii)  any other  agreements,
arrangements,   commitments  or  understandings  that  any  of  the  Transaction
Agreements expressly contemplates will survive the NCR Distribution Date.

                  3.5.  DISCLAIMER OF  REPRESENTATIONS  AND
WARRANTIES.  Each of
AT&T (on behalf of itself and each  member of the AT&T  Services
Group) and NCR
(on behalf of itself and each  member of the NCR Group)  understands  and agrees
that,  except as expressly set forth in any Transaction  Agreement,  no party to
any Transaction Agreement or any other agreement or document contemplated by any
Transaction Agreement either has or is






representing  or  warranting  in  any  way  as  to  the  Assets,  businesses  or
Liabilities retained,  transferred or assumed as contemplated hereby or thereby,
as to any  consents or approvals  required in  connection  therewith,  as to the
value or freedom from any Security Interests of, or any other matter concerning,
any  Assets of such  party,  or as to the  absence of any  defenses  or right of
setoff or freedom  from  counterclaim  with respect to any claim or other Asset,
including any accounts receivable,  of any party, or as to the legal sufficiency
of any assignment, document or instrument delivered hereunder to convey title to
any Asset or thing of value upon the  execution,  delivery and filing  hereof or
thereof. Except as may expressly be set forth in any Transaction Agreement,  all
such Assets were, or are being,  transferred,  or are being retained,  on an "as
is,"  "where is" basis  (and,  in the case of any real  property,  by means of a
quitclaim or similar form deed or  conveyance)  and the  respective  transferees
shall bear the  economic and legal risks that any  conveyance  shall prove to be
insufficient to vest in the transferee good and marketable title, free and clear
of any Security Interest.

                  3.6. NON-U.S. PLAN. On or prior to the NCR
Distribution Date,
NCR and AT&T shall use their reasonable best efforts to
consummate, or to cause
to be consummated, the transactions set forth on Schedule 3.6
hereto.

                  3.7. LETTERS OF CREDIT AND RELATED MATTERS.  In
the event that
at any  time,  whether  prior  to or  after  the  NCR
Distribution  Date,  AT&T
identifies any letters of credit, interest rate or foreign exchange contracts or
other financial or other contracts that relate primarily to the NCR Business but
for  which any  member of the AT&T  Services  Group has  contingent,  secondary,
joint,  several or other  Liability  of any nature  whatsoever,  NCR will at its
expense take such actions and enter into such  agreements  and  arrangements  as
AT&T may request to effect the release or substitution of the member of the AT&T
Services Group.



                                   ARTICLE IV
                        MUTUAL RELEASES; INDEMNIFICATION

                  4.1. RELEASE OF PRE-CLOSING  CLAIMS. (a) Except as provided in
Section 4.1(c),  effective as of the NCR Distribution Date, NCR does hereby, for
itself  and each  other  member of the NCR Group,  their  respective  Affiliates
(other  than  any  member  of the AT&T  Services  Group  or the  Lucent  Group),
successors  and  assigns,  and all  Persons  who at any  time  prior  to the NCR
Distribution  Date  have  been  shareholders,  directors,  officers,  agents  or
employees  of any  member of the NCR Group (in each  case,  in their  respective
capacities as such), remise,  release and forever discharge AT&T, the members of
the AT&T Services Group,  their respective  Affiliates (other than any member of
the NCR Group or the Lucent Group),  successors and assigns, and all Persons who
at  any  time  prior  to the  NCR  Distribution  Date  have  been  shareholders,
directors,  officers,  agents or  employees  of any member of the AT&T  Services
Group  (in each  case,  in their  respective  capacities  as  such),  and  their
respective heirs,  executors,  administrators,  successors and assigns, from any
and all Liabilities whatsoever, whether at law or in equity (including any right
of contribution),  whether arising under any contract or agreement, by operation
of law or otherwise, existing






or arising  from any acts or events  occurring or failing to occur or alleged to
have occurred or to have failed to occur or any  conditions  existing or alleged
to have existed on or before the NCR Distribution Date,  including in connection
with the actions or decisions  taken or omitted to be taken in connection  with,
and the other activities  relating to, the structuring or  implementation of any
of the Separation, the IPO, the Lucent Distribution or the NCR Distribution.

                  (b) Except as provided in Section 4.1(c),  effective as of the
NCR Distribution Date, AT&T does hereby, for itself and each other member of the
AT&T  Services  Group,  their  respective  Affiliates  (other than AT&T  Capital
Corporation  or any of its  Subsidiaries,  any  member  of the NCR  Group or the
Lucent Group),  successors and assigns, and all Persons who at any time prior to
the NCR Distribution Date have been shareholders, directors, officers, agents or
employees  of any member of the AT&T  Services  Group  other  than AT&T  Capital
Corporation  or any of its  Subsidiaries  (in each  case,  in  their  respective
capacities as such),  remise,  release and forever discharge NCR, the respective
members of the NCR Group, their respective  Affiliates (other than any member of
the AT&T Services  Group or the Lucent Group),  successors and assigns,  and all
Persons  who  at  any  time  prior  to  the  NCR  Distribution  Date  have  been
shareholders,  directors, officers, agents or employees of any member of the NCR
Group  (in each  case,  in their  respective  capacities  as  such),  and  their
respective heirs,  executors,  administrators,  successors and assigns, from any
and all Liabilities whatsoever, whether at law or in equity (including any right
of contribution),  whether arising under any contract or agreement, by operation
of law or  otherwise,  existing or arising from any acts or events  occurring or
failing to occur or alleged to have  occurred  or to have failed to occur or any
conditions existing or alleged to have existed on or before the NCR Distribution
Date,  including in connection with the transactions and all other activities to
implement any of the  Separation,  the IPO, the Lucent  Distribution  or the NCR
Distribution.

                  (c) Nothing  contained  in Section  4.1(a) or (b) shall impair
any  right  of  any  Person  to  enforce  the  Transaction  Agreements,  or  any
agreements,  arrangements,  commitments or understandings  that are specified in
the Separation and  Distribution  Agreement,  in Section 3.4(b) or the Schedules
hereto  or  thereto  not  to  terminate  as of  the  Closing  Date  or  the  NCR
Distribution  Date,  as the case may be,  in each  case in  accordance  with its
terms. Nothing contained in Section 4.1(a) or (b) shall release any Person from:

                   (i) any Liability provided in or resulting from
any agreement
         among any members of the AT&T  Services  Group or the NCR
Group that is
         specified in the  Separation  and  Distribution
Agreement,  in Section
         3.4(b)  or  the  applicable  Schedules  hereto  or
thereto  as  not to
         terminate as of the Closing Date or as of the NCR
Distribution Date, as
         the  case  may  be,  or any  other  Liability  so
specified  as not to
         terminate as of the Closing Date or NCR Distribution Date;

                  (ii)  any   Liability,   contingent  or
otherwise,   assumed,
         transferred, assigned or allocated to the Group of which
such Person is
         a member in accordance  with,  or any other  Liability of
any member of
         any Group under, any Transaction Agreement;







                 (iii) any  Liability  that the parties may have
with respect to
         indemnification  or contribution  pursuant to this
Agreement for claims
         brought against the parties by third Persons,  which
Liability shall be
         governed by the provisions of this Article IV and by the
Separation and
         Distribution  Agreement,   and,  if  applicable,   by
the  appropriate
         provisions of the Ancillary Agreements or NCR Ancillary
Agreements; or

                  (iv) any  Liability  the release of which would
result in the
         release of any Person  other than a Person  released
pursuant  to this
         Section  4.1;  provided  that the  parties  agree not to
bring  suit or
         permit any of their  Subsidiaries to bring suit against
any such Person
         with  respect to any  Liability to the extent that such
Person would be
         released with respect to such Liability by this Section
4.1 but for the
         provisions of this clause (iv).

                  (d) NCR shall not make, and shall not permit any member of the
NCR Group to make,  any claim or demand,  or commence any Action  asserting  any
claim or demand,  including any claim of  contribution  or any  indemnification,
against  AT&T,  any  member of the AT&T  Services  Group,  or any  other  Person
released  pursuant to Section 4.1(a),  with respect to any Liabilities  released
pursuant to Section  4.1(a).  AT&T shall not, and shall not permit any member of
the AT&T  Services  Group,  to make any claim or demand,  or commence any Action
asserting  any  claim or  demand,  including  any claim of  contribution  or any
indemnification, against NCR or any member of the NCR Group, or any other Person
released  pursuant to Section 4.1(b),  with respect to any Liabilities  released
pursuant to Section 4.1(b).

                  (e) It is the  intent of each of AT&T and NCR by virtue of the
provisions  of this Section 4.1 to provide for a full and  complete  release and
discharge  of all  Liabilities  existing  or  arising  from all acts and  events
occurring  or failing to occur or alleged to have  occurred or to have failed to
occur and all  conditions  existing or alleged to have  existed on or before the
NCR Distribution  Date,  between or among NCR or any member of the NCR Group, on
the one hand,  and AT&T or any member of the AT&T Services  Group,  on the other
hand (including any contractual  agreements or arrangements  existing or alleged
to exist  between or among any such  members  on or before the NCR  Distribution
Date),  except as expressly  set forth in Section  4.1(c).  At any time,  at the
request of any other party, each party shall cause each member of its respective
Group to execute and deliver releases reflecting the provisions hereof.

                  4.2.  INDEMNIFICATION BY NCR. NCR shall indemnify,  defend and
hold harmless  AT&T,  each member of the AT&T  Services  Group and each of their
respective directors,  officers and employees, and each of the heirs, executors,
successors  and  assigns  of any  of  the  foregoing  (collectively,  the  "AT&T
Indemnitees"),  from and against any and all Liabilities of the AT&T Indemnitees
relating  to,  arising  out of or  resulting  from  any of the  following  items
(without duplication),  in each case whether arising before, on or after the NCR
Distribution Date:

                  (a) the failure of NCR or any other member of
the NCR Group or
         any other Person to pay,  perform or otherwise  promptly
discharge any
         Liabilities of any mem-






         ber of the NCR Group in accordance with their respective
terms, whether
         prior to or after the NCR Distribution Date or the date
hereof;

                  (b) the NCR Business (including any claim by any
creditor of
         AT&T UK Holdings Ltd. to the extent relating to the NCR
Business
         conducted by such entity), any Liability of any member of
the NCR Group
         or any NCR Covered Liability;

                  (c) any Asset (including contracts,  agreements,
real property
         and  leasehold  interests)  of any  member of the NCR
Group at any time
         (other than Assets transferred to any member of the AT&T
Services Group
         prior  to the NCR  Distribution  Date),  and any
contract,  agreement,
         letter of credit or other  commitment or obligation
listed on Schedule
         4.2 hereof;

                  (d) the  operation  of the NCR  Business,  as
conducted at any
         time prior to, on or after the NCR  Distribution  Date
(including  any
         Liability  relating  to,  arising out of or  resulting
from any act or
         failure  to  act  by  any  director,   officer,
employee,   agent  or
         representative  (whether  or not such act or  failure  to
act is or was
         within such Person's authority));

                          (e) any guarantee, indemnity,
                          representation, warranty or
         other  Liability of or made by any member of the AT&T
Services Group in
         respect of any Liability or alleged  Liability of any
member of the NCR
         Group;

                  (f) any  breach by NCR or any  member of the NCR
Group of this
         Agreement,  the Separation and  Distribution  Agreement,
any Ancillary
         Agreement or any of the NCR Ancillary Agreements;

                  (g) any  Liabilities  relating to, arising out
of or resulting
         from the NCR Business (including any NCR Covered
Liabilities) for which
         AT&T has agreed to indemnify and hold  harmless the
Lucent  Indemnitees
         pursuant  to  Section  5.3(a)  of  the   Separation
and   Distribution
         Agreement;

                  (h) actions taken by any member of the AT&T
Group on behalf of
         any member of the NCR Group pursuant to the Separation
and Distribution
         Agreement or any Ancillary Agreement;

                  (i) any untrue  statement  or alleged  untrue
statement  of a
         material fact or omission or alleged  omission to state a
material fact
         required  to be stated  therein  or  necessary  to make
the  statements
         therein not misleading,  with respect to all
information  contained in
         the NCR Information Statement or NCR Form 10; and

                  (j) any  Liability  relating  to,  arising out
of or resulting
         from any actual or threatened  Action or other claim
alleging that any
         Liability was  improperly  allocated to the NCR Group or
that any Asset
         was  improperly  withheld from the NCR Group,  in each
case pursuant to
         any of the Transaction Agreements.







Nothing in this  Agreement  shall be deemed to amend or modify Section 5.3(c) of
the Separation and  Distribution  Agreement and the provisions of the Separation
and Distribution Agreement shall govern matters covered thereby.

                  4.3. INDEMNIFICATION BY AT&T. (a) AT&T shall indemnify, defend
and hold harmless NCR, each member of the NCR Group and each of their respective
directors, officers and employees, and each of the heirs, executors,  successors
and assigns of any of the foregoing (collectively, the "NCR Indemnitees"),  from
and against any and all Liabilities of the NCR Indemnitees  relating to, arising
out of or resulting from any of the following  items (without  duplication),  in
each case whether arising before, on or after the NCR Distribution Date:

                   (i) the failure of AT&T or any other member of
the AT&T Group
         or any other Person to pay, perform or otherwise promptly
discharge any
         Liabilities  of the AT&T  Services  Group whether prior
to or after the
         NCR Distribution Date or the date hereof;

                  (ii) the AT&T Services Business (including any
claim by any
         creditor of AT&T UK Holdings Ltd. to the extent relating
to the AT&T
         Services Business conducted by such entity) or any
Liability of the
         AT&T Services Group; and

                 (iii)  any  breach by AT&T or any  member of the
AT&T  Services
         Group of this Agreement, the Separation and Distribution
Agreement, any
         Ancillary Agreement or any of the NCR Ancillary
Agreements;

provided however that this Section 4.3 shall not apply to any
Liability relating
to the NCR Business.

                  4.4. INDEMNIFICATION OBLIGATIONS NET OF INSURANCE PROCEEDS AND
OTHER  AMOUNTS.   (a)  The  parties   intend  that  any  Liability   subject  to
indemnification  or  reimbursement  pursuant  to this  Article IV will be net of
Insurance   Proceeds  that  actually   reduce  the  amount  of  the   Liability.
Accordingly, the amount which any party (an "Indemnifying Party") is required to
pay to any Person entitled to  indemnification  hereunder (an "Indemnitee") will
be reduced by any Insurance  Proceeds  theretofore  actually  recovered by or on
behalf of the Indemnitee in reduction of the related Liability. If an Indemnitee
receives a payment (an "Indemnity  Payment")  required by this Agreement from an
Indemnifying  Party  in  respect  of any  Liability  and  subsequently  receives
Insurance  Proceeds,  then the Indemnitee will pay to the Indemnifying  Party an
amount equal to the excess of the Indemnity  Payment received over the amount of
the  Indemnity  Payment  that  would  have  been due if the  Insurance  Proceeds
recovery had been received,  realized or recovered before the Indemnity  Payment
was made.

                  (b) An insurer who would  otherwise  be  obligated  to pay any
claim shall not be  relieved  of the  responsibility  with  respect  thereto or,
solely by virtue of the indemnification  provisions hereof, have any subrogation
rights with respect  thereto,  it being expressly  understood and agreed that no
insurer or any other third party shall be entitled to a "windfall"







(i.e.,  a benefit  they would not be  entitled  to receive in the absence of the
indemnification provisions) by virtue of the indemnification provisions hereof.

                  4.5. PROCEDURES FOR INDEMNIFICATION OF THIRD PARTY CLAIMS. (a)
If an Indemnitee  shall receive notice or otherwise  learn of the assertion by a
Person  (including any  Governmental  Authority) who is not a member of the AT&T
Services Group or the NCR Group of any claim or of the  commencement by any such
Person of any Action (collectively, a "Third Party Claim") with respect to which
an  Indemnifying  Party may be  obligated  to  provide  indemnification  to such
Indemnitee  pursuant  to  Section  4.2 or  4.3,  or any  other  Section  of this
Agreement  or any NCR  Ancillary  Agreement,  such  Indemnitee  shall  give such
Indemnifying Party written notice thereof within 20 days after becoming aware of
such Third Party Claim.  Any such notice shall describe the Third Party Claim in
reasonable detail.  Notwithstanding the foregoing, the failure of any Indemnitee
to give notice as provided in this Section  4.5(a) shall not relieve the related
Indemnifying  Party of its  obligations  under this  Article  IV,  except to the
extent that such  Indemnifying  Party is actually  prejudiced by such failure to
give notice.

                  (b) If the  Indemnitee  or any other  party to
this  Agreement
believes that the Third Party Claim is or may be a Shared
Contingent  Liability,
such  Indemnitee or other party may make a  Determination  Request in accordance
with the Separation and Distribution  Agreement at any time following any notice
given by the Indemnitee to an  Indemnifying  Party  pursuant to Section  4.5(a).
AT&T may make such a Determination Request at any time. Unless each of AT&T, NCR
and Lucent has acknowledged that the applicable Third Party Claim (including any
Third Party Claim set forth on Schedule 6.6 to the Separation  and  Distribution
Agreement) is not a Shared  Contingent  Liability or unless a  determination  to
such effect has been made in accordance  with the  Separation  and  Distribution
Agreement,  AT&T shall be entitled (but not  obligated) to assume the defense of
such Third Party Claim as if it were the Indemnifying  Party  hereunder.  In any
such  event,  AT&T  shall be  entitled  to  reimbursement  of all the  costs and
expenses (including  allocated costs of in-house counsel and other personnel) of
such  defense once a final  determination  or  acknowledgment  is made as to the
status of the Third Party Claim from the applicable  party or parties that would
have been  required  to pay such  amounts if the status of the Third Party Claim
had been  determined  immediately;  provided  that, if such Third Party Claim is
determined to be a Shared Contingent Liability, such costs and expenses shall be
shared  as  provided  in  Section  5.5(c)  of the  Separation  and  Distribution
Agreement.

                  (c) AT&T shall  assume the  defense of, and may seek to settle
or compromise,  any Third Party Claim that is a Shared Contingent Liability, and
the costs and expenses (including  allocated costs of in-house counsel and other
personnel)  thereof  shall be included in the  calculation  of the amount of the
applicable  Shared   Contingent   Liability  in  determining  the  reimbursement
obligations of the other parties with respect thereto pursuant to Section 6.4 of
the Separation and Distribution Agreement. Any Indemnitee in respect of a Shared
Contingent  Liability  shall have the right to employ  separate  counsel  and to
participate in (but not control) the defense, compromise, or settlement thereof,
but all  fees  and  expenses  of  such  counsel  shall  be the  expense  of such
Indemnitee.







                  (d) Other than in the case of a Shared  Contingent  Liability,
an Indemnifying  Party may elect to defend (and,  unless the Indemnifying  Party
has specified any reservations or exceptions,  to seek to settle or compromise),
at such Indemnifying  Party's own expense and by such  Indemnifying  Party's own
counsel,  any Third Party Claim. Within 30 days after the receipt of notice from
an  Indemnitee in accordance  with Section  4.5(a) (or sooner,  if the nature of
such Third Party Claim so  requires),  the  Indemnifying  Party shall notify the
Indemnitee  of  its  election  whether  the   Indemnifying   Party  will  assume
responsibility  for  defending  such Third Party  Claim,  which  election  shall
specify any reservations or exceptions.  After notice from an Indemnifying Party
to an  Indemnitee  of its election to assume the defense of a Third Party Claim,
such  Indemnitee  shall  have  the  right  to  employ  separate  counsel  and to
participate in (but not control) the defense, compromise, or settlement thereof,
but the  fees  and  expenses  of  such  counsel  shall  be the  expense  of such
Indemnitee  except as set forth in the next sentence.  In the event that (i) the
Third Party Claim is not a Shared Contingent Liability and (ii) the Indemnifying
Party has  elected  to assume  the  defense  of the  Third  Party  Claim but has
specified,  and  continues to assert,  any  reservations  or  exceptions in such
notice, then, in any such case, the reasonable fees and expenses of one separate
counsel for all Indemnitees shall be borne by the Indemnifying Party.

                  (e) Other than in the case of a Shared  Contingent  Liability,
if an  Indemnifying  Party elects not to assume  responsibility  for defending a
Third Party Claim,  or fails to notify an Indemnitee of its election as provided
in Section 4.5(d), such Indemnitee may defend such Third Party Claim at the cost
and expense (including  allocated costs of in-house counsel and other personnel)
of the Indemnifying Party.

                  (f)  Unless  the  Indemnifying  Party has failed to assume the
defense of the Third Party Claim in accordance with the terms of this Agreement,
no  Indemnitee  may settle or  compromise  any Third  Party  Claim that is not a
Shared Contingent  Liability  without the consent of the Indemnifying  Party. No
Indemnitee  may  settle or  compromise  any Third  Party  Claim that is a Shared
Contingent Liability without the consent of AT&T.

                  (g) In the case of a Third  Party  Claim  that is not a Shared
Contingent  Liability,  no  Indemnifying  Party  shall  consent  to entry of any
judgment  or enter into any  settlement  of the Third  Party  Claim  without the
consent of the  Indemnitee  if the effect  thereof is to permit any  injunction,
declaratory  judgment,  other order or other  nonmonetary  relief to be entered,
directly or  indirectly,  against any  Indemnitee.  In the case of a Third Party
Claim that is a Shared Contingent Liability,  AT&T shall not consent to entry of
any judgment or enter into any  settlement  of the Third Party Claim without the
consent of the  Indemnitee  if the effect  thereof is to permit any  injunction,
declaratory  judgment,  other order or other  nonmonetary  relief to be entered,
directly or indirectly, against any Indemnitee.

                  (h) The  provisions  of Section  4.5 and Section 4.6 shall not
apply to Taxes (which are covered by the Tax Sharing Agreement).

                  4.6. ADDITIONAL MATTERS. (a) Any claim on
account of a
Liability which does not result from a Third Party Claim shall be
asserted by
written notice given by the Indemnitee to the related Indemnifying
Party. Such
Indemnifying Party shall have a period






of 30 days after the receipt of such notice within which to respond thereto.  If
such  Indemnifying  Party does not  respond  within  such  30-day  period,  such
Indemnifying  Party shall be deemed to have refused to accept  responsibility to
make payment.  If such  Indemnifying  Party does not respond  within such 30-day
period or rejects such claim in whole or in part, such Indemnitee  shall be free
to pursue such remedies as may be available to such party as contemplated by any
Transaction Agreement.

                  (b)  In  the  event  of   payment  by  or  on  behalf  of  any
Indemnifying  Party to any Indemnitee in connection  with any Third Party Claim,
such  Indemnifying  Party shall be subrogated to and shall stand in the place of
such  Indemnitee  as to any  events or  circumstances  in  respect of which such
Indemnitee  may have any right,  defense or claim  relating  to such Third Party
Claim  against any  claimant or  plaintiff  asserting  such Third Party Claim or
against any other person. Such Indemnitee shall cooperate with such Indemnifying
Party in a reasonable manner,  and at the cost and expense (including  allocated
costs of in-house  counsel and other personnel) of such  Indemnifying  Party, in
prosecuting any subrogated right, defense or claim; provided, however, that AT&T
shall be entitled to control the prosecution of any such right, defense or claim
in respect of any Shared Contingent Liability.

                  (c) In the event of an Action in which the Indemnifying  Party
is not a named defendant,  if either the Indemnified Party or Indemnifying Party
shall so request,  the parties  shall  endeavor to substitute  the  Indemnifying
Party for the named defendant or, in the case of a Shared Contingent  Liability,
add the Indemnifying Party as a named defendant, if at all practicable.  If such
substitution  or addition cannot be achieved for any reason or is not requested,
the named defendant shall allow the  Indemnifying  Party to manage the Action as
set forth in this  Section  and,  subject to Section 6.4 of the  Separation  and
Distribution  Agreement  with  respect  to Shared  Contingent  Liabilities,  the
Indemnifying  Party shall fully indemnify the named defendant  against all costs
of defending the Action  (including court costs,  sanctions  imposed by a court,
attorneys'  fees,  experts'  fees  and  all  other  external  expenses,  and the
allocated  costs of  in-house  counsel  and other  personnel),  the costs of any
judgment or  settlement,  and the cost of any interest or penalties  relating to
any judgment or settlement.

                  4.7.  REMEDIES  CUMULATIVE.  The  remedies  provided  in  this
Article IV shall be cumulative  and,  subject to the provisions of Article IX of
the Separation and Distribution  Agreement,  shall not preclude assertion by any
Indemnitee  of any other  rights or the  seeking  of any and all other  remedies
against any Indemnifying Party.

                  4.8. SURVIVAL OF INDEMNITIES. The rights and
obligations of
each of AT&T and NCR and their respective Indemnitees under this
Article IV
shall  survive  the  sale or  other  transfer  by any  party  of any  Assets  or
businesses or the assignment by it of any Liabilities.

                  4.9. RELATIONSHIP TO SEPARATION AND DISTRIBUTION
AGREEMENT
DISPUTE RESOLUTION PROCEDURES. (a) Each of NCR and AT&T agrees
that the
procedures for discussion, negotiation and arbitration set forth
in Article IX
of the Separation and Distribution Agreement (which are hereby
incorporated
herein by reference) shall apply to all dis-






putes, controversies or claims (whether sounding in contract, tort or otherwise)
that may arise out of or relate to, or arise  under or in  connection  with this
Agreement or, except as otherwise expressly provided therein,  any NCR Ancillary
Agreement (as if each of this Agreement and each of the NCR Ancillary Agreements
were an Ancillary Agreement), or the transactions contemplated hereby or thereby
(including  all actions taken in furtherance  of the  transactions  contemplated
hereby or thereby on or prior to the date hereof), or the commercial or economic
relationship  of the parties  relating  hereto or thereto,  between or among any
member of the AT&T Services Group and the NCR Group.

                  (b) Each party  agrees on behalf of itself and each  member of
its  respective  Group that the procedures set forth in such Article IX shall be
the sole and exclusive  remedy in connection  with any dispute,  controversy  or
claim relating to any of the foregoing matters and irrevocably  waives any right
to  commence  any  Action in or before  any  Governmental  Authority,  except as
expressly provided in Sections 9.7(b) and 9.8 of the Separation and Distribution
Agreement and except to the extent  provided  under the  Arbitration  Act in the
case of judicial review of arbitration  results or awards.  Each party on behalf
of itself and each member of its respective Group  irrevocably  waives any right
to any trial by jury with respect to any claim, controversy or dispute set forth
in  the  first  sentence  of  Section  9.1 of the  Separation  and  Distribution
Agreement.

                  (c) Without limiting the foregoing, each of the parties agrees
on behalf of itself and each member of its Group that if an  Arbitration  Demand
Notice with respect to a dispute, controversy or claim is not given prior to the
expiration of the Applicable  Deadline,  as between or among the parties and the
members of their Groups, such dispute, controversy or claim will be barred.

                  (d) Subject to Sections  9.7(d) and 9.8 of the  Separation and
Distribution  Agreement,  upon delivery of an Arbitration Demand Notice pursuant
to Section  9.3(a) of the  Separation and  Distribution  Agreement  prior to the
Applicable  Deadline,  the dispute,  controversy  or claim shall be decided by a
sole  arbitrator  in  accordance  with the rules set forth in  Article IX of the
Separation and Distribution Agreement.

                  (e) The  interpretation  of the provisions of this Section 4.9
and  Article IX of the  Separation  and  Distribution  Agreement  (to the extent
incorporated herein by reference),  only insofar as they relate to the agreement
to  arbitrate  and any  procedures  pursuant  thereto,  shall be governed by the
Arbitration Act and other  applicable  federal law. In all other  respects,  the
interpretation of this Agreement shall be governed as set forth in Section 8.2.


                                    ARTICLE V
                  INTERIM OPERATIONS AND CERTAIN OTHER MATTERS


                  5.1. CERTAIN TAX MATTERS. Notwithstanding any
other provision
of this Agreement, the Tax Sharing Agreement or any other
Transaction Agreement,
in the case of any Adjustment comprising a Restructuring
Adjustment that relates
to the NCR Distribution






and arises as a result of the acquisition of all or a portion of the NCR capital
stock of any class or series and/or of its assets by any means whatsoever by any
Person other than an Affiliate of NCR following such NCR Distribution, NCR shall
indemnify,  defend  and  hold  harmless  AT&T  from  and  against  any  and  all
Liabilities  of  AT&T  relating  to,  arising  out  of or  resulting  from  such
Adjustment.

                  5.2. AGREEMENT FOR EXCHANGE OF INFORMATION;
ARCHIVES. Each of
AT&T and NCR agrees that the  provisions of Article VIII of the
Separation  and
Distribution  Agreement shall continue to apply after the NCR
Distribution Date;
provided however, that as between the members of NCR Group, on the one hand, and
the AT&T  Services  Group,  on the  other  hand,  the  reference  to "the  third
anniversary   of  the  date  hereof"  in  Section  8.2  of  the  Separation  and
Distribution  Agreement shall be deemed to be the third  anniversary of the date
of this  Agreement.  Without  limiting the foregoing,  (a) NCR shall maintain in
effect at its own cost and expense  adequate  systems and controls to the extent
necessary  to enable the members of the AT&T Group to satisfy  their  respective
reporting,  accounting,  audit and other obligations, and (b) NCR shall provide,
or cause to be  provided,  to AT&T in such  form as AT&T  shall  request,  at no
charge to AT&T, all financial and other data and  information as AT&T determines
necessary or advisable in order to prepare AT&T financial statements and reports
or filings with any Governmental Authority.



                                   ARTICLE VI
                   FURTHER ASSURANCES AND ADDITIONAL COVENANTS

                  6.1.  FURTHER  ASSURANCES.  (a) In  addition  to  the  actions
specifically  provided  for  elsewhere  in this  Agreement,  each of the parties
hereto shall use its  reasonable  best  efforts,  prior to, on and after the NCR
Distribution  Date,  to take, or cause to be taken,  all actions,  and to do, or
cause to be done, all things,  reasonably  necessary,  proper or advisable under
applicable laws, regulations and agreements to consummate and make effective the
transactions contemplated by this Agreement and the NCR Ancillary Agreements.

                  (b) Without limiting the foregoing, prior to, on and after the
NCR Distribution Date, each party hereto shall cooperate with the other parties,
and  without  any further  consideration,  but at the expense of the  requesting
party, to execute and deliver, or use its reasonable best efforts to cause to be
executed and delivered,  all instruments,  including  instruments of conveyance,
assignment  and  transfer,  and to make all  filings  with,  and to  obtain  all
consents,  approvals or  authorizations  of, any  Governmental  Authority or any
other Person under any permit, license, agreement, indenture or other instrument
(including any Consents or Governmental  Approvals),  and to take all such other
actions as such party may  reasonably  be  requested  to take by any other party
hereto from time to time,  consistent  with the terms of this  Agreement and the
NCR Ancillary Agreements,  in order to effectuate the provisions and purposes of
this  Agreement  and the NCR  Ancillary  Agreements  and the other  transactions
contemplated  hereby and thereby.  Without  limiting the  foregoing,  each party
will, at the reasonable request,  cost and expense of any other party, take such
other actions as may be







reasonably necessary to vest in such other party good and marketable title, free
and clear of any Security Interest, if and to the extent it is practicable to do
so.

                  (c) Each of AT&T and NCR, at the  request of the other,  shall
use its  reasonable  best  efforts to obtain,  or to cause to be  obtained,  any
consent, substitution,  approval or amendment required to novate (including with
respect to any federal  government  contract)  or assign all  obligations  under
agreements,  leases, licenses and other obligations or Liabilities of any nature
whatsoever  that  constitute  Liabilities of the NCR Group or  Liabilities  that
relate to the NCR Group,  or to obtain in writing the  unconditional  release of
all  parties to such  arrangements  other  than any member of the NCR Group,  so
that, in any such case, NCR and its Subsidiaries will be solely  responsible for
such  Liabilities;  provided,  however,  that  neither  AT&T  nor NCR  shall  be
obligated  to pay any  consideration  therefor to any third party from whom such
consents, approvals, substitutions, amendments and releases are requested.

                  (d) If AT&T or NCR is  unable  to  obtain,  or to  cause to be
obtained,  any  such  required  consent,  approval,  release,   substitution  or
amendment, the applicable member of the AT&T Services Group shall continue to be
bound by such agreements, leases, licenses and other obligations and, unless not
permitted by law or the terms thereof,  NCR shall, as agent or subcontractor for
AT&T or such other Person,  as the case may be, pay, perform and discharge fully
all the  obligations or other  Liabilities of AT&T or such other Person,  as the
case may be, thereunder from and after the date hereof. NCR shall indemnify each
AT&T Indemnitee,  and hold each of them harmless against any Liabilities arising
in connection therewith.

                  (e) On or prior to the Closing  Date,  AT&T and NCR shall take
all actions as may be  necessary  to approve the  stock-based  employee  benefit
plans of NCR in order to  satisfy  the  requirements  of Rule  16b-3  under  the
Exchange Act and Section 162(m) of the Code.

                  (f) The parties  hereto agree to take any  reasonable  actions
necessary  in  order  for  the  NCR   Distribution  to  qualify  as  a  tax-free
distribution pursuant to Section 355 of the Code.

                  6.2. QUALIFICATION AS TAX-FREE DISTRIBUTION. (a) After the NCR
Distribution  Date,  none of AT&T or NCR shall take, or permit any member of its
respective  Group to take,  any action  which  could  reasonably  be expected to
prevent the NCR Distribution from qualifying as a tax-free  distribution  within
the meaning of Section 355 of the Code or any other transaction  contemplated by
this  Agreement  or any other  Transaction  Agreement  which is  intended by the
parties to be tax-free from failing so to qualify.

                  (b) After the NCR Distribution  Date, NCR shall not, nor cause
or  permit,  any  member of the NCR Group to take any  action or enter  into any
transaction  which could  reasonably be expected to materially  adversely impact
the reasonably  expected tax  consequences to AT&T which are known to NCR of any
transaction  contemplated  by  this  Agreement  or  any  Transaction  Agreement;
provided,  however,  nothing in this section shall  prohibit NCR from taking any
action, or entering into any transaction (or permitting or causing any member of
the NCR Group so to act or enter) in the  ordinary  course of business or in the
ordinary course of business dealing, or in connection with the settlement of any
audit issue or in  connection  with the filing of any tax return.  After the NCR
Distribution  Date, AT&T shall not, nor cause or permit,  any member of the AT&T
Group to take any action or enter into any transaction which could reasonably be
expected to materially  adversely  impact the expected tax  consequences  to NCR
which are known to AT&T of any transaction contemplated by this Agreement or any
Transaction Agreement; provided, however, nothing in this section shall prohibit
AT&T from taking any action,  or entering into any transaction (or permitting or
causing any member of the AT&T Group so to act or enter), in the ordinary course
of business or in the ordinary course of business dealing, or in connection with
the  settlement of any audit issue or in  connection  with the filing of any tax
return.


                                   ARTICLE VII
                                   TERMINATION





                  7.1. TERMINATION. This Agreement may be
terminated at any time
prior to the NCR Distribution Date by AT&T.

                  7.2. EFFECT OF TERMINATION. In the event of any
termination of
this Agreement, no party to this Agreement (or any of its
directors or officers)
shall have any Liability or further obligation to any other party.



                                  ARTICLE VIII
                                  MISCELLANEOUS

                  8.1. COUNTERPARTS; ENTIRE AGREEMENT; CORPORATE POWER. (a) This
Agreement  and each  NCR  Ancillary  Agreement  may be  executed  in one or more
counterparts,  all of which shall be considered one and the same agreement,  and
shall become effective when one or more counterparts have been signed by each of
the parties and delivered to the other party.

                  (b) This Agreement, the Separation and Distribution Agreement,
the  Ancillary  Agreements  and the NCR Ancillary  Agreements  and the Exhibits,
Schedules and Appendices hereto and thereto contain the entire agreement between
the parties with respect to the subject  matter  hereof,  supersede all previous
agreements, negotiations, discussions, writings, understandings, commitments and
conversations with respect to such subject matter and there are no agreements or
understandings  between  the  parties  other than those set forth or referred to
herein or therein.

                  (c) AT&T  represents on behalf of itself and each other member
of the AT&T  Services  Group,  and NCR  represents  on behalf of itself and each
other member of the NCR Group as follows:

                   (i) each such  Person has the  requisite
corporate  or other
         power  and  authority  and has  taken  all  corporate  or
other  action
         necessary  in  order  to  execute,  deliver  and
perform  each of this
         Agreement  and each  other NCR  Ancillary  Agreements  to
which it is a
         party  and to  consummate  the  transactions
contemplated  hereby  and
         thereby; and

                  (ii) this Agreement and each NCR Ancillary
Agreement to which
         it  is a  party  has  been  duly  executed  and
delivered  by  it  and
         constitutes  a  valid  and  binding  agreement  of  it
enforceable  in
         accordance with the terms thereof.

                  (d) Notwithstanding any provision of this Agreement or any NCR
Ancillary Agreement,  AT&T shall not be required to take or omit to take any act
that would violate its fiduciary duties to any minority  stockholders of Lucent,
AT&T Capital  Corporation or any other  non-wholly  owned Subsidiary of AT&T (it
being understood that directors'  qualifying shares or similar interests will be
disregarded for purposes of determining whether a Subsidiary is wholly owned).






                  8.2.  GOVERNING  LAW. This  Agreement  and,  unless  expressly
provided  therein,  each  NCR  Ancillary  Agreement,  shall be  governed  by and
construed and  interpreted in accordance  with the laws of the State of New York
(other than as to its laws of  arbitration  which  shall be  governed  under the
Arbitration Act or other  applicable  federal law pursuant to Section 4.9 hereof
and Section 9.10 of the Separation and Distribution Agreement),  irrespective of
the  choice of laws  principles  of the State of New  York,  as to all  matters,
including matters of validity, construction, effect, enforceability, performance
and remedies.

                  8.3.  ASSIGNABILITY.  (a)  Except  as set  forth  in  any  NCR
Ancillary  Agreement,  this Agreement and each NCR Ancillary  Agreement shall be
binding  upon and  inure to the  benefit  of the  parties  hereto  and  thereto,
respectively,  and their respective successors and assigns;  provided,  however,
that no party hereto or thereto may assign its respective rights or delegate its
respective  obligations  under this  Agreement  or any NCR  Ancillary  Agreement
without  the  express  prior  written  consent  of the other  parties  hereto or
thereto.

                  8.4. THIRD PARTY BENEFICIARIES. Except for the
indemnification
rights under this  Agreement of any AT&T  Indemnitee or NCR
Indemnitee in their
respective capacities as such, (a) the provisions of this
Agreement and each NCR
Ancillary  Agreement  are solely  for the  benefit  of the  parties  and are not
intended  to confer  upon any Person  except the  parties any rights or remedies
hereunder,  and (b) there are no third party  beneficiaries of this Agreement or
any NCR  Ancillary  Agreement  and neither this  Agreement nor any NCR Ancillary
Agreement  shall  provide any third  person with any remedy,  claim,  liability,
reimbursement,  claim of  action  or other  right in  excess  of those  existing
without reference to this Agreement or any NCR Ancillary Agreement.

                  8.5. NOTICES.  All notices or other  communications under this
Agreement or any NCR Ancillary Agreement shall be in writing and shall be deemed
to be duly given when (a)  delivered  in person or (b)  deposited  in the United
States mail or private express mail, postage prepaid, addressed as follows:

         If to AT&T, to:   AT&T Corp.
                           131 Morristown Road
                           Basking Ridge, NJ 07920
                           Attn.: Vice President-Law and
                                  Corporate Secretary

         If to NCR, to:    NCR Corporation
                           1700 S. Patterson Blvd.
                               Dayton, Ohio 45479
                           Attn.: Chief Financial Officer

         with a copy to:   NCR Corporation
                           1700 S. Patterson Blvd.
                               Dayton, Ohio 45479
                           Attn.: General Counsel






Any party may,  by notice to the other  party,  change the address to which such
notices are to be given.

                  8.6.  SEVERABILITY.  If any provision of this Agreement or any
NCR Ancillary Agreement or the application thereof to any Person or circumstance
is  determined  by a court of  competent  jurisdiction  to be  invalid,  void or
unenforceable, the remaining provisions hereof or thereof, or the application of
such provision to Persons or circumstances or in jurisdictions  other than those
as to which it has been held  invalid  or  unenforceable,  shall  remain in full
force  and  effect  and shall in no way be  affected,  impaired  or  invalidated
thereby,  so  long  as the  economic  or  legal  substance  of the  transactions
contemplated  hereby  or  thereby,  as the case may be, is not  affected  in any
manner  adverse  to any  party.  Upon  such  determination,  the  parties  shall
negotiate in good faith in an effort to agree upon such a suitable and equitable
provision to effect the original intent of the parties.

                  8.7.  FORCE  MAJEURE.  No party  shall be deemed in default of
this  Agreement or any NCR  Ancillary  Agreement to the extent that any delay or
failure in the  performance of its  obligations  under this Agreement or any NCR
Ancillary  Agreement  results from any cause beyond its  reasonable  control and
without its fault or negligence,  such as acts of God, acts of civil or military
authority, embargoes,  epidemics, war, riots, insurrections,  fires, explosions,
earthquakes,  floods,  unusually  severe weather  conditions,  labor problems or
unavailability  of parts,  or, in the case of computer  systems,  any failure in
electrical  or air  conditioning  equipment.  In the  event of any such  excused
delay, the time for performance shall be extended for a period equal to the time
lost by reason of the delay.

                  8.8.  PUBLICITY.  Prior to the NCR Distribution  Date, each of
NCR and AT&T shall  consult with each other prior to issuing any press  releases
or  otherwise  making  public  statements  with  respect to the IPO,  the Lucent
Distribution, the NCR Distribution or any of the other transactions contemplated
hereby and prior to making any  filings  with any  Governmental  Authority  with
respect thereto.

                  8.9. EXPENSES. Except as expressly set forth in this Agreement
or in any NCR  Ancillary  Agreement,  whether  or not the  NCR  Distribution  is
consummated,  all third party fees, costs and expenses paid or incurred prior to
the NCR Distribution  Date in connection with the NCR Distribution  will be paid
by AT&T;  provided  however that NCR shall  consult with AT&T prior to incurring
any such third party obligations.

                  8.10. HEADINGS. The article, section and
paragraph headings
contained in this Agreement and in the NCR Ancillary Agreements
are for
reference purposes only and shall not affect in any way the
meaning or
interpretation of this Agreement or any NCR Ancillary Agreement.

                  8.11. SURVIVAL OF COVENANTS. Except as expressly
set forth in
any NCR Ancillary Agreement, the covenants, representations and
warranties
contained in this Agreement and each NCR Ancillary Agreement, and
liability for
the breach of any obligations







contained  herein,  shall survive the NCR  Distribution and shall remain in full
force and effect following the consummation of the NCR Distribution.

                  8.12.  WAIVERS OF DEFAULT.  Waiver by any party of any default
by the other  party of any  provision  of this  Agreement  or any NCR  Ancillary
Agreement shall not be deemed a waiver by the waiving party of any subsequent or
other default, nor shall it prejudice the rights of the other party.

                  8.13.  AMENDMENTS.  No provisions of this Agreement or any NCR
Ancillary Agreement shall be deemed waived, amended, supplemented or modified by
any party,  unless such waiver,  amendment,  supplement  or  modification  is in
writing and signed by the authorized representative of the party against whom it
is sought to enforce such waiver, amendment, supplement or modification.

                  8.14.  INTERPRETATION.  Words in the singular shall be held to
include  the  plural  and vice  versa and words of one  gender  shall be held to
include the other genders as the context requires. The terms "hereof," "herein,"
and "herewith" and words of similar import shall,  unless otherwise  stated,  be
construed to refer to this Agreement (or the applicable NCR Ancillary Agreement)
as a whole (including all of the Schedules,  Exhibits and Appendices  hereto and
thereto)  and not to any  particular  provision of this  Agreement  (or such NCR
Ancillary  Agreement).   Article,   Section,   Exhibit,  Schedule  and  Appendix
references are to the Articles,  Sections, Exhibits, Schedules and Appendices to
this  Agreement (or the  applicable NCR Ancillary  Agreement)  unless  otherwise
specified.  The word  "including"  and words of similar import when used in this
Agreement (or the applicable  NCR Ancillary  Agreement)  shall mean  "including,
without  limitation,"  unless the context otherwise requires or unless otherwise
specified.  The word  "or"  shall not be  exclusive.  For all  purposes  of this
Agreement,  "allocated  costs of in-house  counsel and other personnel" shall be
determined in accordance  with the principles set forth in Schedule 12.15 to the
Separation and Distribution Agreement.





TNESS  WHEREOF,  the  parties  have  caused this  Distribution  Agreement  to be
executed by their duly authorized representatives.

                                        AT&T CORP.




                                       By:
                                      Name:
                                     Title:




                                        NCR CORPORATION




                                       By:
                                      Name:
                                     Title: