Exhibit A

                             BASE TEN SYSTEMS, INC.
                           CERTIFICATE OF AMENDMENT OF
                      RESTATED CERTIFICATE OF INCORPORATION
                           PROVIDING FOR DESIGNATION,
                          PREFERENCES AND RIGHTS OF THE

                     CONVERTIBLE PREFERRED SHARES, SERIES B

                           (Par Value $1.00 Per Share)

                                       of

                             BASE TEN SYSTEMS, INC.


         Base Ten Systems,  Inc., a corporation  (the  "Corporation")  organized
under the laws of the State of New Jersey, to amend its Restated  Certificate of
Incorporation   in  accordance  with  Chapter  9  of  the  New  Jersey  Business
Corporation Act, hereby certifies:

         FIRST:   The name of the Corporation is Base Ten Systems, Inc.

         SECOND: The Board of Directors of the Corporation, at a meeting held on
November  24,  1998,  pursuant  to Section  14A:7-2  of the New Jersey  Business
Corporation  Act and the  authority  vested  in the  Board of  Directors  by the
Restated  Certificate  of  Incorporation,  as  amended,  adopted  the  following
resolution  providing  for the  issuance  of a new  series of the  Corporation's
Preferred Shares, par value $1.00 per share,  consisting of up to [exact initial
number of shares  determined  immediately prior to filing] shares of Convertible
Preferred Shares, Series B:

                           RESOLVED,  that pursuant to the  authority  vested in
                  this Board of Directors in  accordance  with the  provision of
                  the Corporation's certificate of incorporation,  as amended, a
                  new series of  Preferred  Shares of the  Corporation  known as
                  Convertible  Preferred  Shares,  Series B, be,  and hereby is,
                  created,  classified,  authorized  and  the  issuance  thereof
                  provided for, and that the  designation  and number of shares,
                  and relative  rights,  preferences and imitations  thereof are
                  hereby   fixed,   and   Article  6  of  the   Certificate   of
                  Incorporation  of  the  Corporation,  as  amended,  is  hereby
                  amended  by  adding  Article  6(e)  thereto,  to read,  in its
                  entirety, as follows:

                  (e) A.  Designation  and Amount.  The shares of this series of
Preferred Shares shall be designated as "Convertible Preferred Shares, Series B"
and the number of shares constituting such series shall be [exact initial number
of shares  determined  immediately  prior to filing],  with a par value of $1.00
per share. Fractional B Preferred Shares shall be permitted.

                           B.  Definitions.  As used in this Article  6(e),  the
following terms shall have the following meanings.

         "Article  6(e)"  means  this   Subsection  (e)  of  Article  6  of  the
Certificate of Incorporation establishing the B Preferred Shares as the same may
be amended,  supplemented  or modified from time to time in accordance  with the
terms hereof and pursuant to applicable law.

         "B Preferred Shares" means the Convertible Preferred Shares, Series B.

         "Board of Directors" means the board of directors of the Corporation.

         "Business Day" means any day, other than a Saturday,  a Sunday or a day
on which banking  institutions  in the City of New York, New York are authorized
or obligated by law or executive order to close.

         "Capital Stock" means any and all shares, rights to purchase, warrants,
options,  convertible  securities,  participation  or  other  equivalents  of or
interests  (other than security  interests) in (however  designated  and whether
voting or nonvoting) corporate stock.

         "Conversion Default Payments" has the meaning set forth in Section H(2)
hereof.

         "Closing Bid Price" means, for any security as of any date, the closing
bid price of such  security  on the  principal  securities  exchange  or trading
market  where such  security  is listed or traded,  as  reported at the close of
normal  trading  hours,  New York  time,  by  Bloomberg  Financial  Markets or a
comparable  reporting service of national reputation selected by the Corporation
and  reasonably  acceptable to holders of the B Preferred  Shares then holding a
majority of the then  outstanding  B Preferred  Shares  ("Majority  Holders") if
Bloomberg  Financial  Markets is not then  reporting  closing bid prices of such
security  (collectively,  "Bloomberg"),  or if the foregoing does not apply, the
last reported sale price of such security in the over-the-counter  market on the
electronic  bulletin board of such security as reported by Bloomberg,  or, if no
sale price is reported for such  security by  Bloomberg,  the average of the bid
prices of any market  makers for such  security as reported in the "pink sheets"
by the  National  Quotation  Bureau,  Inc. If the  Closing  Bid Price  cannot be
calculated  for such  security on such date on any of the foregoing  bases,  the
Closing Bid Price of such  security on such date shall be the fair market  value
as  reasonably  determined  by  an  investment  banking  firm  selected  by  the
Corporation and reasonably acceptable to the Majority Holders, with the costs of
such appraisal to be borne by the Corporation.

         "Common  Shares" means the Class A Common  Shares,  par value $1.00 per
share, of the Corporation  and all shares  hereafter  authorized of any class of
Common  Shares  of the  Corporation,  and,  in the  case of a  reclassification,
recapitalization or other similar change in such Common Shares or in the case of
a consolidation or merger of the Corporation  with or into another Person,  such
consideration  to which a holder of a share of  Common  Shares  would  have been
entitled upon the occurrence of such event.  Common Shares shall not include the
Corporation's Class B Common Shares, par value $1.00 per share.

         "Conversion Date" has the meaning set forth in Section H(2) hereof.

         "Conversion Notice" has the meaning set forth in Section H(2) hereof.

         "Conversion Price" has the meaning set forth in Section H(1) hereof.

         "Default  Redemption  Amount" has the meaning set forth in Section F(4)
hereof.

         "Delay  Compensation"  has the meaning set forth in Section 3(f) of the
Registration Rights Agreement.

         "Delisting  Payments"  has the  meaning set forth in Section 4.5 of the
Securities Purchase Agreement.

         "Dividend  Payment  Date" has the  meaning  set forth in  Section  C(1)
hereof.

         "DTC" has the meaning set forth in Section H(11) hereof.

         "Exchange Agreement" means that certain Exchange Agreement, dated as of
December  XX,  1998,  by and  among  the  Corporation  and  all  holders  of the
Convertible  Preferred  Shares,  Series  A, a copy  of  which  is on file in the
offices of the  Corporation  and available for inspection by shareholders of the
Corporation.

         "Fiscal  Quarter" means a calendar  quarter ended on March 31, June 30,
September 30 or December 31, as the case may be.

         "Five  Percent  Limitation"  has the meaning set forth in Section  H(1)
hereof.

         "Illiquidity Payment" has the meaning set forth in Section C(1) hereof.

         "Junior  Stock"  means  Common  Shares and any other class or series of
Capital Stock of the  Corporation now or hereafter  issued and outstanding  that
ranks junior as to dividends and/or liquidation to the B Preferred Shares.

         "Mandatory  Redemption Price" has the meaning set forth in Section F(2)
hereof.

         "Market  Value" as of any date means the  average  Closing Bid Price of
Common Shares for the ten  consecutive  Trading Days ending on the date prior to
such date.

         "Maturity  Date" means December 15, 2000, [To be extended by the number
of days (if any)  required to be added to the Series A Preferred  Stock prior to
the Effective Date] provided, however, that such Maturity Date shall be extended
by a number of Trading Days equal to the aggregate number of Trading Days during
the period  from the  effective  date of the  Amendment  to the  Certificate  of
Incorporation  establishing the B Preferred Shares to and including the Maturity
Date during which the holders of B Preferred  Shares are restricted from selling
Common  Shares  by  reason  of  (x)  Section  2(d)  of the  Registration  Rights
Agreement,  (y)  any  Delay  Period(s)  (as  defined  in  Section  3(f)  of  the
Registration  Rights  Agreement),  but only if the  total  number of days in any
Delay Period(s) within a twelve-month period exceed thirty (30) days, or (z) any
Redemption Event.

         "NASDAQ" means the National Association of Securities Dealers Automated
Quotation System.

         "Person" means an individual,  a  corporation,  a partnership,  a joint
venture,  an association,  a joint-stock  company,  a trust, a business trust, a
government  or any  agency  or any  political  subdivision,  any  unincorporated
organization, or any other entity.

         "Purchase Price" shall mean $1,000 per B Preferred Share.

         "Redemption  Date" means any date on which shares of B Preferred Shares
are to be redeemed pursuant to Section F hereof.

         "Redemption Event" means any one of the following:

                  (i) the Common  Shares  (including  any of the  Common  Shares
issuable upon conversion of the B Preferred Shares or required from time to time
to be reserved pursuant hereto) are suspended from trading on, or are not listed
(and  authorized)  for  trading  on, the  NASDAQ  Small Cap  Market,  the NASDAQ
National  Market  System,  the American  Stock  Exchange,  or the New York Stock
Exchange for an aggregate of thirty (30) Trading Days in any eighteen (18) month
period;

                  (ii) the  Company  fails at any time  during the  Registration
Period (as defined in the Registration  Rights Agreement),  to cause the holders
of B Preferred Shares to be able to utilize the Registration  Statement required
to be filed  pursuant to Section 5 of the Exchange  Agreement  for the resale of
all of their  Registrable  Securities  (as  defined in the  Registration  Rights
Agreement  and the  Exchange  Agreement),  unless the  Company is using its best
efforts to remedy such inability to utilize such registration statement, subject
to the  Company's  Board of  Directors  having  determined  in their  good faith
business  judgment  by  resolution  that  the  continued  effectiveness  of such
registration  statement  would have a material  adverse  effect on the Company's
ability to consummate a financing,  acquisition,  merger or joint  venture,  the
failure  of which to  consummate  would have a  material  adverse  effect on the
Company's  financial  condition,  results  of  operations  or future  prospects;
provided  that in no event  shall  such  failure  exist for a total of more than
thirty (30) Trading Days in any eighteen (18) month period;

                  (iii) The Company fails to (x) issue Common Shares to a holder
of the B Preferred  Shares upon exercise by the holder of its conversion  rights
in accordance with the terms hereof; (y) transfer or to cause its transfer agent
to transfer any certificate for Common Shares issued to a holder upon conversion
of the B  Preferred  Shares  as  and  when  required  hereby,  by  the  Exchange
Agreement,   or  by  the  Registration  Rights  Agreement;  or  (z)  remove  any
restrictive  legend on any  certificate for any Common Shares issued to a holder
of the B Preferred  Shares upon conversion of the B Preferred Shares as and when
required  hereby,  by  the  Securities  Purchase  Agreement,   by  the  Exchange
Agreement,  or by the  Registration  Rights  Agreement;  and  any  such  failure
described above shall continue uncured for ten (10) Business Days; or

                  (iv) The  Corporation  fails to pay to a holder of B Preferred
Shares  any  amounts  due  hereunder  or  pursuant  to the  Securities  Purchase
Agreement,   the  Exchange  Agreement,  or  the  Registration  Rights  Agreement
(including  but not  limited  to  dividends,  Illiquidity  Payments,  Conversion
Default Payments,  and Delay Compensation thereon) when due and any such failure
shall continue  uncured (after written notice and demand to cure from the holder
of B Preferred Shares) for ten (10) Business Days.

         "Redemption  Price" means the Optional  Redemption Price, the Mandatory
Redemption  Price or the Default  Redemption  Price, as the case may be, each of
which terms shall have the respective meanings set forth in Section F hereof.

         "Registration Rights Agreement" means the Registration Rights Agreement
dated as of December 4, 1997 between the Corporation and the initial  purchasers
of the Convertible Preferred Shares, Series A of the Corporation,  as amended by
and incorporated by reference in the Exchange  Agreement,  a copy of which is on
file  in  the  offices  of the  Corporation  and  available  for  inspection  by
shareholders of the Corporation.

         "Securities Purchase Agreement" means the Securities Purchase Agreement
dated as of December 4, 1997 between the Corporation and the initial  purchasers
of the Convertible Preferred Shares, Series A, as amended by and incorporated by
reference in the Exchange  Agreement,  a copy of which is on file in the offices
of  the  Corporation  and  available  for  inspection  by  shareholders  of  the
Corporation.

         "Trading  Day" means,  with  respect to the Common  Shares:  (i) if any
series of Common  Shares is quoted on the NASDAQ  National  Market  System,  any
similar system of automated dissemination of quotations of securities prices, or
the National Quotation Bureau Incorporated,  each day on which quotations may be
made on such  system;  or (ii) if any  series  of  Common  Shares  is  listed or
admitted for trading on any  national  securities  exchange,  days on which such
national securities exchange is open for business; or (iii) if the Corporation's
Common  Shares are not quoted on any system or listed or admitted for trading on
any securities exchange, a Business Day.

         "Underwriter's  Lock-Up"  has the meaning set forth in Section  2(d) of
the Registration Rights Agreement.

                           C. Dividends and Certain Other Payments.  The holders
of the B Preferred Shares shall be entitled to receive,  when and as declared by
the Board of Directors,  out of funds legally available therefor,  dividends and
certain other payments as set forth in this Section C.

                           (1) If a holder of B  Preferred  Shares is subject to
an  Underwriter's  Lock-Up,  that  holder  (but not any other  holder)  shall be
entitled to receive a payment (an  "Illiquidity  Payment") at the rate of $20.00
per  Preferred  Share for each Fiscal  Quarter in which such event  occurs or is
continuing.  Illiquidity Payments shall be payable at the option of the Board of
Directors  (x) in cash, or (y) if the Market Value is equal to, or in excess of,
$4.00,  in a number of B  Preferred  Shares  (which  may  include  fractional  B
Preferred  Shares)  equal  to the  product  of  (A)  the  cash  amount  of  such
Illiquidity  Payment, as the case may be, multiplied by (B) 1.25, divided by (C)
the Purchase Price per Preferred Share.

                           (2)  The  holders  of B  Preferred  Shares  shall  be
entitled to participate  with the holders of Common Shares in any dividends paid
or set aside for payment with  respect to the Common  Shares so that the holders
of B Preferred  Shares shall  receive with respect to each B Preferred  Share an
amount  equal to (x) the  dividend  payable  with  respect to each Common  Share
multiplied  by (y) the number of Common  Shares (and fraction of a Common Share,
if any) into which such B Preferred  Share is  convertible as of the record date
for such dividend.

                           (3) Dividends and  Illiquidity  Payments shall accrue
(whether  or not  declared)  from and  including  the first day of the  relevant
Fiscal Quarter to and including the date on which the  Redemption  Price is paid
on such shares or on which such  shares are  converted  or redeemed  and, to the
extent not paid for any relevant Fiscal Quarter,  will be cumulative.  Dividends
and Illiquidity Payments on the B Preferred Shares, to the extent payable, shall
be  payable  quarterly,  in  arrears,  on the last day of each  relevant  Fiscal
Quarter  (each such date, a "Dividend  Payment  Date"),  except that if any such
date is not a Business Day, then such dividend or  Illiquidity  Payment shall be
paid on the next  succeeding  Business Day.  Each such  dividend or  Illiquidity
Payment  shall be  payable  to  holders  of B  Preferred  Shares at the close of
business on the Dividend Payment Date. Dividends on the B Preferred Shares shall
accrue on a daily basis during the relevant  quarterly period whether or not the
Corporation shall have earnings or surplus at the time.

                           D. Voting Rights.  The holders of B Preferred  Shares
shall have the following voting rights:

                           (1)  Each  holder  of B  Preferred  Shares  shall  be
entitled to such number of votes for the B Preferred  Shares held on all matters
submitted to a vote of the  Corporation's  shareholders as shall be equal to the
largest  number of whole Common Shares into which all of the B Preferred  Shares
held are then  convertible  (after  giving  effect to, and  subject to, the Five
Percent  Limitation,  and any other  then  applicable  limitations  set forth in
Section (H)(1));

                           (2) Except as  otherwise  provided  herein or by law,
the holders of B Preferred Shares, the holders of Common Shares, and the holders
of Class B Common Shares of the Corporation  shall vote together as one class on
all matters submitted to a vote of the Corporation's shareholders.

                           (3)  So  long   as  any  B   Preferred   Shares   are
outstanding,  the Corporation shall not, without first obtaining the approval of
the holders of two-thirds of the B Preferred Shares:

                                    (i) alter or change the rights,  preferences
                           or privileges of the B Preferred Shares;

                                    (ii)  issue  any  other  class or  series of
                           Capital  Stock  having  rights  upon  liquidation  or
                           rights as to  dividends  which are  senior to or pari
                           passu with the rights of the  holders of B  Preferred
                           Shares; or

                                    (iii)  issue  any   additional  B  Preferred
                           Shares  in excess of the B  Preferred  Shares  issued
                           pursuant to the  Exchange  Agreement,  other than any
                           additional  B  Preferred  Shares  which may be issued
                           pursuant to Section C(1) hereof.

                           E.  Liquidation  Preference.  In  the  event  of  any
liquidation,  dissolution, or winding up of the Corporation, either voluntary or
involuntary, after the payment or the setting apart of payment to the holders of
any class or series of Capital  Stock of the  Corporation  hereafter  issued and
outstanding  that  ranks  senior as to  dividends  and/or  liquidation  to the B
Preferred Shares, the holders of B Preferred Shares shall be entitled to receive
out of assets of the Corporation available for distribution to shareholders,  an
amount  equal to the  Mandatory  Redemption  Price of such  shares,  before  any
payment shall be made or any assets  distributed to the holders of Junior Stock.
If the  assets and funds to be  distributed  to the  holders of the B  Preferred
Shares, and the holders of any other Capital Stock ranking pari passu with the B
Preferred  Shares,  shall be  insufficient  to permit  the  payment  to all such
holders  of their  full  preferential  amount,  the  assets  and  funds  legally
available shall be distributed ratably,  among the holders of such other Capital
Stock ranking pari passu with the B Preferred  Shares, in proportion to the full
preferential  amount each such holder is otherwise entitled to receive.  Neither
the consolidation or merger of the Corporation with or into any other entity nor
the sale or  transfer  by the  Corporation  of all or  substantially  all of its
assets  shall,  for  the  purposes  hereof,  be  deemed  to  be  a  liquidation,
dissolution or winding up of the Corporation.

                           F.       Redemption.

                           (1)  Optional  Redemption  by the  Company.  While  a
Registration  Statement  (as defined in the  Registration  Rights  Agreement) is
effective  with respect to the Common  Shares  issuable on  conversion  of the B
Preferred  Shares  and so  long  as no  Redemption  Event  has  occurred  and is
continuing,  the  Corporation  may, at its option at (i) any time within 45 days
prior to or 15 days after the commencement of a firm commitment  public offering
of its  equity  securities,  or (ii) at any  time  or  from  time to time  after
December 15, 1998, redeem for cash, out of funds legally available therefor, all
or any  part of (but  not less  than  1,400 B  Preferred  Shares  in any  single
redemption)  the  outstanding B Preferred  Shares at a price per Preferred Share
equal to the  greater of (x) 130% of the then  applicable  Mandatory  Redemption
Price per B Preferred Share or (y) (A) the then applicable  Mandatory Redemption
Price per B Preferred Share,  divided by (B) the then effective Conversion Price
of the B Preferred Shares on the Redemption  Date,  multiplied by (C) the Market
Value of the Common Shares into which each B Preferred  Share is  convertible on
the Redemption Date (the "Optional Redemption Price").

                           (2)  Mandatory   Redemption   by  the  Company.   The
Corporation shall redeem all outstanding B Preferred Shares on the Maturity Date
at a price per share equal to the sum of (x) the Purchase Price, (y) any accrued
and  unpaid  dividends  thereon  through  the  date  of  final  distribution  to
shareholders,  whether  or  not  declared,  and  any  Illiquidity  Payments  and
conversion  Default  Payments  thereon,  and  (z)  any  Delay  Compensation  and
Delisting Payments thereon (collectively, the "Mandatory Redemption Price"). All
Conversion Default Payments,  Delay Compensation and Conversion Default Payments
shall be payable on the Maturity Date in cash,  out of funds  legally  available
therefor.  The  balance  of  the  Mandatory  Redemption  Price  (the  "Remaining
Redemption  Amount")  shall be payable on the Maturity Date at the option of the
Board of Directors (x) in cash, out of funds legally available therefor;  or (y)
while a Registration Statement (as defined in the Registration Rights Agreement)
is effective  with respect to the Common Shares  issuable on redemption of the B
Preferred  Shares,  in Common  Shares  having an  aggregate  Market Value on the
Maturity Date equal to (A) the  Remaining  Redemption  Amount  multiplied by (B)
1.25.

                           (3)      Procedures for Redemption by the Company.

                           (i) At least 30 days (45 days if the Redemption Price
         is to be paid in Common  Shares)  but not more than 60 days  before the
         applicable Redemption Date, the Corporation or its transfer agent shall
         mail a notice of redemption by first-class mail postage prepaid to each
         holder of B Preferred  Shares,  addressed to such holders at their last
         addresses  shown on the stock transfer books of the  Corporation.  Such
         notice shall  indicate  that B Preferred  Shares are to be redeemed and
         shall, among other things, state:

                                    (a) the Redemption Date;

                                    (b) the number of B Preferred  Shares  being
                  redeemed;

                                    (c)  the   Optional   Redemption   Price  or
                  Mandatory  Redemption Price, as the case may be, including the
                  amount of unpaid dividends,  Illiquidity Payments,  Conversion
                  Default Payments,  Delay  Compensation and Delisting  Payments
                  with respect to such shares;

                                    (d) that the B Preferred  Shares  called for
                  redemption  must be surrendered to the  Corporation to collect
                  the Redemption Price;

                                    (e)  that  B  Preferred  Shares  called  for
                  redemption  may be  converted  at any time before the close of
                  business on the first  Business Day preceding  the  Redemption
                  Date.

         Failure to give notice or any defect in the notice to any holder  shall
         not affect the validity of the notice given to any other holder.

                           (ii) As long as the Corporation has complied with the
         requirements set forth in this Section F, from and after the applicable
         Redemption  Date,  dividends on, and Illiquidity  Payments,  Conversion
         Default  Payments,  Delay  Compensation  and  Delisting  Payments  with
         respect to the shares of B  Preferred  Shares so called for  redemption
         shall cease to accrue as of the applicable Redemption Date, such shares
         shall be canceled and shall no longer be deemed to be outstanding,  and
         all rights of the holders  thereof as  shareholders  of the Corporation
         (except the right to receive from the Corporation the Redemption Price)
         shall cease.

                           (4)  Optional  Redemption  By  Holder.  (i)  Upon the
occurrence of a Redemption  Event,  each holder of B Preferred Shares shall have
the  right to elect at any time and from time to time by  delivery  of a Default
Redemption  Notice (as defined herein) to the Corporation  while such Redemption
Event  continues,  to require the Corporation to purchase for cash, out of funds
legally  available  therefor,  for an  amount  per  share  equal to the  Default
Redemption Amount (as defined herein), any or all of the then outstanding shares
of B Preferred Shares held by such Holder. The "Default  Redemption Amount" with
respect to each B Preferred  Share  means an amount  equal to the greater of (i)
1.25 times the then  effective  Mandatory  Redemption  Price per share of each B
Preferred  Share for which a demand for redemption is being made or (ii) (x) the
then effective Mandatory  Redemption Price of each B Preferred Share for which a
demand  for  redemption  is  being  made,  divided  by (y)  the  then  effective
Conversion Price, multiplied by (z) the Market Value of the Common Shares.

                           (ii) If the  Corporation  fails to pay any holder the
Default Redemption Amount with respect to any B Preferred Shares within five (5)
Business Days of its receipt of a notice  requiring such  redemption (a "Default
Redemption  Notice"),  then the holder delivering such Default Redemption Notice
shall be entitled to  interest on the Default  Redemption  Amount at a per annum
rate equal to the lower of (x) the sum of prime rate published from time to time
by the Wall Street  Journal plus five percent (5%) and (y) the highest  interest
rate permitted by applicable law from the date of the Default  Redemption Notice
until the date of redemption hereunder. In the event the Corporation is not able
to redeem all of the shares of B Preferred Shares subject to Default  Redemption
Notices  because  of  insufficient   shareholders  equity,   restrictions  under
applicable law or pursuant to agreements, or lack of cash, the Corporation shall
redeem shares of B Preferred Shares from each holder, to the maximum extent, pro
rata, based on the total number of shares of B Preferred Shares included by such
holder in the Default  Redemption  Notice relative to the total number of shares
of B Preferred Shares in all of the Default Redemption Notices.

                           G. Consolidation, Merger and Sale of Assets, etc. The
Corporation  shall  not  consolidate  with or merge  into,  or  transfer  all or
substantially  all of its assets to,  another Person unless (i) in the case of a
merger or consolidation,  the Corporation is the surviving entity and the rights
and  preferences  of the B Preferred  Shares are not  modified,  or (ii) (A) the
surviving, resulting or acquiring Person is a Person organized under the laws of
the United  States,  any state thereof or the District of Columbia,  or a Person
organized under the laws of a foreign  jurisdiction  whose equity securities are
listed on a national  securities exchange in the United States or authorized for
quotation on NASDAQ, and (B) the Corporation shall make effective provision such
that, upon consummation of such  transaction,  the holders of B Preferred Shares
shall  receive  preferred  stock of the surviving  entity  having  substantially
identical terms and registration rights as the B Preferred Shares.

                           H.       Conversion of B Preferred Shares.

                           (1) Right of Conversion of B Preferred Shares. Each B
Preferred Share shall be convertible at the option of the holder thereof, at any
time or from time to time, into a number of fully paid and nonassessable  Common
Shares  equal  to the  then  applicable  Mandatory  Redemption  Price  of such B
Preferred Share, divided by $4.00 (the "Conversion Price");  provided,  however,
that in no event shall any holder of B  Preferred  Shares be entitled to receive
Common  Shares upon a conversion to the extent that the sum of (x) the number of
Common Shares beneficially owned by that holder and its affiliates (exclusive of
shares issuable upon  conversion of the  unconverted  portion of any B Preferred
Shares or the unexercised or unconverted  portion of any other securities of the
Corporation  subject to a limitation on conversion or exercise  analogous to the
limitations  contained herein) and (y) the number of Common Shares issuable upon
the conversion of the B Preferred Shares with respect to which the determination
of this  subclause is being made,  would result in  beneficial  ownership by the
holder and its  affiliates  of more than 4.9% of the  outstanding  Common Shares
(the "Five Percent Limitation"), and for purposes of this subclause,  beneficial
ownership shall be determined in accordance with Section 13(d) of the Securities
Exchange Act of 1934, as amended,  and Regulation 13 D-G  thereunder,  except as
otherwise  provided  in  clause  (x)  above.  To the  extent  the  Five  Percent
Limitation  applies,  the  determination  of whether B Preferred Shares shall be
convertible  (vis-a-vis other securities owned by a holder) shall be in the sole
discretion of the holder and  submission of a Conversion  Notice shall be deemed
to be  the  holder's  determination  of  whether  the  B  Preferred  Shares  are
convertible  in  whole  or in  part,  subject  to such  aggregate  Five  Percent
Limitation.  No prior  inability to convert the B Preferred  Shares  pursuant to
this clause shall have any effect on the applicability of the provisions of this
clause with respect to any subsequent  determination of ability to convert.  The
provisions  of  this  clause  may be  amended  and/or  implemented  in a  manner
otherwise  than in  strict  conformity  with the terms of this  clause  with the
approval of the Board of Directors of the Company and the affected  Holder;  the
provisions of this clause may be waived by the affected  holder upon ninety (90)
days prior  written  notice from such  holder to the  Company.  The  limitations
contained in this clause shall apply to a successor holder concurrently with its
acquisition of such B Preferred Shares,  such election to be promptly  confirmed
in writing to the  Company  (provided  no  transfers  to a  successor  holder or
holders shall be used by a holder to evade the limitations contained herein).

                           (2) Conversion  Procedures.  In order to exercise the
conversion  privilege,  the holder of any B Preferred  Shares to be converted in
whole or in part  shall  give  written  notice to the  Corporation  ("Conversion
Notice") by courier delivery (with receipt acknowledged),  by personal delivery,
registered  or  certified  mail (with  receipt  acknowledged)  or, by  facsimile
transmission  (such  facsimile  transmission  will  be  deemed  received  by the
Corporation on the date and at the time it was sent by the holder so long as (i)
the holder's facsimile machine confirms that the transmission was received prior
to 5:30 p.m.,  New York time on the  Business  Day on which it was sent and (ii)
the  Corporation  receives the  original  thereof  (together  with a copy of the
facsimile  confirmation)  by  courier  within 2  Business  Days  following  such
facsimile  transmission),  that the holder  elects to convert such shares or the
portion thereof specified in such Conversion Notice into shares of Common Shares
and shall,  within five (5)  Business  Days after the  Business Day on which the
Conversion  Notice  was so given,  surrender  the  certificate  or  certificates
evidencing such shares to the Corporation.  The Conversion  Notice shall specify
the  effective  date of such  conversion,  which  shall be no  earlier  than the
Business Day on which the  Conversion  Notice was properly  given in  accordance
with this  Section H(2) and no later than 30 days  following  such giving of the
Conversion  Notice,  and shall also state the name or names  (with  address)  in
which the  certificates  for Common  Shares  which shall be  issuable  upon such
conversion  shall be issued.  Each  certificate  evidencing  B Preferred  Shares
surrendered for conversion  shall,  unless the shares issuable on conversion are
to be issued in the same name as the registration of such B Preferred Shares, be
duly  endorsed  by,  or be  accompanied  by  instruments  of  transfer  in  form
satisfactory  to the  Corporation  duly  executed  by,  such  holder or its duly
authorized attorney.

                  Within three (3) Business Days after the Business Day on which
the Conversion  Notice was properly given in accordance  with this Section H(2),
but not prior to the specified effective date of conversion,  and following (and
in no event prior to) surrender of the  certificate or  certificates  evidencing
the B Preferred Shares relating thereto, the Corporation shall issue and deliver
to such  holder (or upon the  written  order of such  holder) a  certificate  or
certificates  for the number of full Common Shares  issuable upon the conversion
of such B Preferred  Shares or portion thereof in accordance with the provisions
of this  Section  H, and a check or cash in  respect  of any  fractional  Common
Shares  issuable  upon such  conversion,  as  provided in Section  H(3).  If the
Corporation fails to issue  certificates upon any such conversion of B Preferred
Shares,  the Corporation  shall pay to any holders of such converted B Preferred
Shares an amount equal to (i) 1% of the  Conversion  Price per day multiplied by
the number of Common Shares issuable upon  conversion of the B Preferred  Shares
subject  to the  applicable  Conversion  Notice  for the first 30 days after the
scheduled  delivery date of such  certificates,  and (ii) thereafter,  2% of the
Conversion Price per day multiplied by the number of Common Shares issuable upon
conversion of the B Preferred Shares subject to the applicable Conversion Notice
("Conversion   Default  Payments").   Notwithstanding  the  foregoing,   if  the
Corporation's failure to issue such certificates is a result of an error made by
its  transfer  agent,  such  amount  shall not accrue  until after the third day
following the scheduled  delivery  date of such  certificate.  In the event that
less than all the B Preferred  Shares  represented  by a  certificate  are to be
converted,  the  Corporation  shall  issue and deliver or cause to be issued and
delivered to (or upon the written order of) the holder of the B Preferred Shares
so surrendered, without charge to such holder, a new certificate or certificates
representing a number of B Preferred Shares equal to the unconverted  portion of
the surrendered certificate.

                  Each  conversion  shall be deemed to have been  effected as of
the date (the "Conversion Date") specified in the applicable  Conversion Notice,
or if no date is specified,  as of the Business Day on which a Conversion Notice
with respect to B Preferred  Shares shall have been received by the Corporation,
as described  above,  but only if the certificate or  certificates  evidencing B
Preferred  Shares shall have been surrendered to the Corporation or its transfer
agent  within  five (5)  Business  Days  after  the  Business  Day on which  the
Conversion  Notice  relating  thereto was properly given in accordance with this
Section  H(2)  and,  if such  certificate  or  certificates  shall not have been
surrendered within such time period, such Conversion Notice shall be ineffective
and void ab initio. Any Person in whose name any certificate or certificates for
Common Shares shall be issuable upon  conversion  shall be deemed to have become
the holder of record of the shares  represented  thereby on the Conversion Date;
provided,  however, that the receipt of a Conversion Notice on any date when the
share transfer  books of the  Corporation  shall be closed shall  constitute the
Person in whose  name the  certificates  are to be issued as the  record  holder
thereof for all purposes on the next succeeding day on which such share transfer
books are open, but such conversion shall be at the Conversion Rate in effect on
the Conversion Date.

                  Except as otherwise  provided in this Section H, no payment or
adjustment will be made for dividends or other distributions with respect to any
Common Shares issuable upon conversion of B Preferred Shares as provided herein.
Full  payment  shall be made by the  Corporation  to any  holder of B  Preferred
Shares surrendered for conversion in respect of dividends accrued since the last
preceding  Dividend  Payment  Date on the B  Preferred  Shares  surrendered  for
conversion; the dividend due on such Dividend Payment Date shall be payable with
respect to such B Preferred Shares  notwithstanding  such  conversion,  and such
dividend  (whether or not punctually paid or duly provided for) shall be paid to
the holder of such shares as of the close of business on such record date.

                           (3) Cash  Payments in Lieu of Fractional  Shares.  No
fractional Common Shares or scrip representing fractional shares shall be issued
upon conversion of B Preferred Shares. If any fractional Common Share would, but
for this Section H, be issuable upon the  conversion of any B Preferred  Shares,
the Corporation  shall make a payment therefor in cash on the third Business Day
immediately  following the Conversion Date equal to the Conversion Price of such
fractional share.

                           (4)   Adjustment   of  Conversion   Privileges.   The
Conversion  Price  shall be  adjusted  from time to time by the  Corporation  as
follows:

                           (i) In case  the  Corporation  shall  (A)  declare  a
         dividend, or make a distribution, in shares of any series of its Common
         Shares, on any series of its Common Shares, (B) subdivide or reclassify
         any series of its  outstanding  Common Shares into a greater  number of
         shares,  (C) combine any series of its outstanding Common Shares into a
         smaller number of shares,  (D) pay a dividend or make a distribution on
         any series of its Common  Shares in shares of any series of its Capital
         Stock other than Common Shares, or (E) issue by reclassification of any
         series of its Common  Shares of any series of its  Capital  Stock,  the
         conversion  privilege and the  Conversion  Price in effect  immediately
         prior  thereto  shall be adjusted so that the holder of any shares of B
         Preferred  Shares  thereafter   surrendered  for  conversion  shall  be
         entitled to receive the number of Common  Shares or other Capital Stock
         of the  Corporation  which  such  holder  would have owned or have been
         entitled to receive after the happening of any of the events  described
         above had such B Preferred Shares been converted  immediately  prior to
         the  happening  of such  event.  An  adjustment  made  pursuant to this
         Section H(4) shall become effective  immediately  after the record date
         in the case of a dividend or  distribution  and shall become  effective
         immediately  after  the  effective  date in the  case  of  subdivision,
         combination  or   reclassification.   Such  adjustment  shall  be  made
         successively  whenever any event referred to above shall occur.  In the
         event such dividend,  distribution,  subdivision,  reclassification  or
         combination  is not so made,  the  conversion  privilege then in effect
         shall be readjusted to the conversion  privilege which would then be in
         effect if such dividend, distribution, subdivision, reclassification or
         combination had not been declared or made, but such readjustment  shall
         not affect the number of Common Shares or other Capital Stock delivered
         upon any conversion prior to the date such readjustment is made.

                           (ii) In case the Corporation  shall distribute to all
         holders of any  series of its  Common  Shares any of its assets or debt
         securities, or rights, options, warrants or convertible or exchangeable
         securities  of the  Corporation  (including  securities  for cash,  but
         excluding distributions of Capital Stock referred to in Section H(4)(i)
         above,  if the  adjustment to the  Conversion  Price under that Section
         would be greater than an adjustment  under this Section),  then in each
         such  case,  the  Conversion  Price  shall be  adjusted  to  equal  the
         Conversion Price in effect  immediately prior to such distribution less
         an amount equal to the then fair market value (as reasonably determined
         by the  Board  of  Directors,  in  good  faith  and as  described  in a
         resolution  of the Board of  Directors) of the portion of the assets or
         debt  securities of the  Corporation  so distributed or of such rights,
         options,  warrants or convertible or exchangeable securities applicable
         to one share of Common Shares.  Such adjustment  shall become effective
         immediately  after  the  record  date for the  determination  of shares
         entitled to receive such distribution.  Notwithstanding  the foregoing,
         no  adjustment  of  the  Conversion   Price  shall  be  made  upon  the
         distribution  to holders of any series of Common Shares of such rights,
         options, warrants, convertible securities, assets or debt securities if
         the plan or  arrangement  under which such rights,  options,  warrants,
         convertible  securities,  assets or debt securities are issued provides
         for their  issuance to holders of shares of B  Preferred  Shares in the
         same pro rata amounts upon conversion thereof. Such adjustment shall be
         made successively whenever any event listed above shall occur.

                           (iii)  Anything in this  Section H(4) to the contrary
         notwithstanding,  the  Corporation  shall  be  entitled  to  make  such
         reductions in the  Conversion  Price,  in addition to those required by
         this Section H(4), as it in its reasonable  discretion  shall determine
         to be  advisable  in order  that any stock  dividends,  subdivision  of
         shares,  distribution  of rights to purchase  stock or  securities,  or
         distribution of securities  convertible  into or exchangeable for stock
         hereafter  made by the  Corporation to its  shareholders,  shall not be
         taxable.

                           (iv)  Whenever  the  Conversion  Price is adjusted as
         provided  in this  Section  H(4),  or the B  Preferred  Shares  becomes
         convertible  into  shares  of  stock,  securities,  property  or assets
         pursuant  to  Section  H(5)  below,  or  the  Corporation  reduces  the
         Conversion Price pursuant to Section H(6) below, the Corporation  shall
         prepare a notice of such  adjustment  of the  Conversion  Price setting
         forth  the  adjusted  Conversion  Price  and  the  date on  which  such
         adjustment  becomes  effective,  and setting forth in reasonable detail
         the  facts  requiring  such  adjustment  and  the  calculation  of such
         adjustment,  and shall mail such notice of adjustment to all holders of
         B  Preferred  Shares at their  last  addresses  appearing  on the share
         transfer books of the Corporation.

                           (v) In any case in which this Section  H(4)  provides
         that an adjustment  shall become effective  immediately  after a record
         date for an event,  the  Corporation  may defer until the occurrence of
         such  event  (i)  issuing  to  the  holder  of any B  Preferred  Shares
         converted  after such  record  date and before the  occurrence  of such
         event the  additional  Common Shares  issuable upon such  conversion by
         reason of the  adjustment  required  by such  event  over and above the
         Common  Shares  issuable upon such  conversion  before giving effect to
         such  adjustment,  and (ii) paying to such holder any amount in cash in
         lieu of any fractional Common Shares pursuant to Section H(3).

                           (vi) For  purposes  of any  computations  pursuant to
         this Section H(4),  respecting  consideration  received,  the following
         shall apply:

                                    (a) in the case of the issuance of shares of
                  Capital Stock for cash, the consideration  shall be the amount
                  of such cash,  provided that in no case shall any deduction be
                  made for any commissions, discounts or other expenses incurred
                  by the  Corporation  for  any  underwriting  of the  issue  or
                  otherwise in connection therewith;

                                    (b) in the case of the issuance of shares of
                  Capital  Stock for a  consideration  in whole or in part other
                  than cash, the  consideration  other than cash shall be deemed
                  to be the fair market value thereof as  reasonably  determined
                  in good faith by the Board of Directors  or a duly  authorized
                  committee  thereof  (irrespective of the accounting  treatment
                  thereof),  and  described  in a  resolution  of the  Board  of
                  Directors or such committee; and

                                    (c)  in  the   case  of  the   issuance   of
                  securities convertible into or exchangeable or exercisable for
                  shares of Capital Stock, the aggregate  consideration received
                  therefor shall be deemed to be the  consideration  received by
                  the  Corporation  for the issuance of such securities plus the
                  additional  minimum  consideration,  if any, to be received by
                  the Corporation  upon the conversion or exchange  thereof (the
                  consideration in each case to be determined in the same manner
                  as provided in clauses (a) and (b) of this Section).

                           (vii) If after an  adjustment a holder of B Preferred
         Shares may, upon conversion of such security,  receive shares of two or
         more classes of Capital Stock of the Corporation, the Corporation shall
         determine on a fair basis the  allocation  of the  adjusted  Conversion
         Price between the classes of Capital Stock. After such allocation,  the
         conversion  privilege and the Conversion Price of each class of Capital
         Stock shall  thereafter be subject to adjustment on terms comparable to
         those applicable to Common Shares in this Section H.

                           (viii) In no event  shall an  adjustment  pursuant to
         this  Section  H(4)  or any  other  provision  of this  Certificate  of
         Amendment reduce the Conversion Price below the then par value, if any,
         of the Common Shares issuable upon conversion of B Preferred Shares.

                           (5) Effect of Reclassification, Consolidation, Merger
or Sale. If any of the following events occur,  namely (i) any  reclassification
or change of outstanding  Common Shares  issuable upon conversion of B Preferred
Shares (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),
(ii) any consolidation or merger of the Corporation with another Person shall be
effected as a result of which holders of Common Shares  issuable upon conversion
of B Preferred  Shares shall be entitled to receive  stock,  securities or other
property or assets  (including  cash) with  respect to or in  exchange  for such
Common  Shares,  or (iii) any sale or conveyance of the properties and assets of
the Corporation as, or substantially  as, an entirety to any other Person,  then
the  Corporation  or such  successor or purchasing  Person,  as the case may be,
shall make provisions in its certificate or articles of  incorporation  or other
constituent  documents to establish that each Preferred  Share then  outstanding
shall be  convertible  into the kind and  amount  of  shares  of stock and other
securities  or  property  or  assets   (including  cash)  receivable  upon  such
reclassification,  change, consolidation, merger, sale or conveyance by a holder
of the number of Common  Shares  issuable  upon  conversion  of such B Preferred
Shares  immediately  prior  to  such  reclassification,  change,  consolidation,
merger, sale or conveyance.  Such provisions shall provide for adjustments which
shall be as nearly equivalent as may be practicable to the adjustments  provided
for in this Section H.

                  If this Section  H(5)  applies with respect to a  transaction,
Section  H(4)  shall not  apply  with  respect  to that  transaction.  The above
provisions   of  this  Section  H(5)  shall   similarly   apply  to   successive
reclassifications, consolidations, mergers and sales.

                  (6) Voluntary Adjustment. Subject to the Ownership Limitation,
the  Corporation at any time may reduce the  Conversion  Price by any amount and
for any period of time,  provided  that such period is not less than twenty (20)
Business Days. Whenever the Conversion Price is reduced pursuant to this Section
8(f), the  Corporation  shall mail to the Holders,  a notice of the reduction at
least 15 days before 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.
                  (7) Taxes on Shares Issued. The issuance of share certificates
upon  conversion or transfer of B Preferred  Shares shall be made without charge
to the converting holder for any tax in respect of the issuance thereof.

                  (8) Reservation Of Shares; Shares To Be Fully Paid; Compliance
With  Governmental  Requirements.  The  Corporation  shall  reserve,  free  from
preemptive  rights,  out of its authorized but unissued shares, or out of shares
held in its treasury,  sufficient Common Shares to provide for the conversion at
any time or from time to time,  and/or  redemption  at the Maturity  Date at the
then applicable  Mandatory Redemption Price, of all B Preferred Shares from time
to time outstanding.  The Corporation covenants that all Common Shares which may
be issued upon conversion of B Preferred Shares will upon issuance be fully paid
and nonassessable by the Corporation and free from all taxes,  liens and charges
with respect to the issuance thereof.

                  (9) Notice to Holders Prior to Certain Actions. In the event:

                  (i) that the  Corporation  shall  take any  action  that would
         require an adjustment in the Conversion  Price pursuant to clauses (i),
         (ii) or (iii) of Section H(4) above; or

                  (ii)  that any event described in Section H(5) shall occur; or

                  (iii) of the voluntary or involuntary dissolution, liquidation
         or winding-up of the Corporation;

the Corporation shall cause notice of such proposed action or event to be mailed
to each holder of record of B Preferred  Shares at its address  appearing on the
stock  transfer  books of the  Corporation,  as promptly as possible  but in any
event at least  thirty  (30) days  prior to the  record  date for such  proposed
action or the effective date of such event; provided, however, that in the event
that the  Corporation  provides  public notice of such proposed  action or event
specifying the  information  set forth below at least ten (10) days prior to the
proposed record date or effective date, the Corporation  shall be deemed to have
satisfied its obligation to provide notice pursuant to this Section H(9). In any
event,  such notice shall  specify (A) the date on which a record is to be taken
for the purpose of such action,  or, if a record is not to be taken, the date as
of which the holders of record of Common Shares are to be determined, or (B) the
date on which such proposed event is expected to become effective,  and the date
as of which it is  expected  that  holders of record of Common  Shares  shall be
entitled  to exchange  their  Common  Shares for  securities  or other  property
deliverable upon such event. Failure to give such notice, or any defect therein,
shall not affect the legality or validity of such action or event.

                  (10)  Conversion  Disputes.  In the case of any  dispute  with
respect to a conversion,  the  Corporation  shall  promptly issue such number of
Common Shares as are not disputed in accordance  with Section H hereof.  If such
dispute involves the calculation of the Conversion  Price, the Corporation shall
submit the disputed calculations,  and shall permit any holder to simultaneously
submit its data and views, to a "Big Six"  independent  accounting firm selected
by the Corporation via facsimile  within two (2) business days of receipt of the
Conversion  Notice.  The accounting firm shall audit the calculations and notify
the  Corporation  and the holder of the  results no later than two (2)  business
days from the date it receives the disputed calculations.  The accounting firm's
calculation shall be deemed conclusive, absent manifest error. The Company shall
then issue the  appropriate  number of Common Shares in accordance  with Section
H(2) hereof.

                  (11) Electronic  Transmission.  In lieu of delivering physical
certificates  representing  the Common Shares  issuable upon the conversion of B
Preferred Shares,  provided the Corporation's transfer agent is participating in
the Depository Trust Company ("DTC") Fast Automated Securities Transfer program,
upon the written request of a holder who shall have  previously  instructed such
holder's  prime  broker to confirm such  request to the  Corporation's  transfer
agent, the Corporation  shall use its commercially  reasonable  efforts to cause
its transfer agent to  electronically  transmit the Common Shares  issuable upon
conversion to the holder by crediting the account of holder's  prime broker with
DTC through its Deposit Withdrawal Agent Commission ("DWAC") system.

                  I.       Transfers; Replacement Of Certificates.

                  (1) Transfers.  Subject to any  restrictions on transfer under
applicable  securities or other laws, B Preferred  Shares may be  transferred on
the  books  of the  Corporation  by the  surrender  to  the  Corporation  of the
certificate  therefor properly  endorsed or accompanied by a written  assignment
and power of attorney  properly  executed,  with transfer  stamps (if necessary)
affixed,  and such proof of the  authenticity of signature as the Corporation or
its transfer agent may reasonably require.

                  (2) Replacement of Certificates.  If any mutilated certificate
representing  B Preferred  Shares is  surrendered  to the  Corporation,  or if a
holder claims the  certificate  representing  B Preferred  Shares has been lost,
destroyed  or  willfully  taken,  the  Corporation  shall  issue  a  replacement
certificate of like tenor and date if (i) the holder  provides an indemnity bond
or other security sufficient, in the reasonable judgment of the Corporation,  to
protect the Corporation and any authenticating  agent and any of their officers,
directors,  employees  or  representatives  from any loss  which any of them may
suffer if a certificate  representing B Preferred  Shares is replaced,  and (ii)
the holder satisfies any other reasonable requirements of the Corporation.

                  J.  Reacquired  Shares.  Any  B  Preferred  Shares  which  are
converted,  purchased, redeemed or otherwise acquired by the Corporation,  shall
be retired and canceled by the Corporation promptly  thereafter.  No such shares
shall upon their cancellation be reissued as B Preferred Shares.

                  K. Consideration. The Purchase Price of $1,000 per B Preferred
Share  shall be paid for by  exchange  of one  share  of  Convertible  Preferred
Shares, Series A in accordance with the terms of the Exchange Agreement. In lieu
of physical delivery of certificates  representing Convertible Preferred Shares,
Series A, all shares of Convertible  Preferred Shares, Series A to be exchanged,
shall be and become a like number of B Preferred Shares.  Each share certificate
representing the Convertible Preferred Shares, Series A, outstanding immediately
prior to the exchange shall, upon  effectiveness of the exchange pursuant to the
Exchange  Agreement,  be deemed to evidence a like number of B Preferred Shares.
The Company shall issue new  certificates to each holder  requesting B Preferred
Share  certificates upon the surrender of certificates  previously  representing
Convertible Preferred Shares, Series A.

         THIRD: That the Corporation's  Restated Certificate of Incorporation is
amended so that the designation  and number of shares of the B Preferred  Shares
acted upon in the foregoing resolution, and the relative rights, preferences and
limitations of such series, are as stated in the foregoing resolution.

         FOURTH:  This  Certificate  of Amendment  shall become  effective  upon
filing.


         IN  WITNESS  WHEREOF,  Base  Ten  Systems,  Inc.  has  caused  its duly
authorized  officer to execute this Certificate on this ____ day of ___________,
1998.

                                           BASE TEN SYSTEMS, INC.



                                           By:__________________________________
                                              THOMAS E. GARDNER, President
                                                and Chief Executive Officer