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                    FIRST AMENDMENT TO FORBEARANCE AGREEMENT
                    ----------------------------------------

     This First Amendment to Forbearance Agreement is entered as of April 18,
1997 by and between

     The First National Bank of Boston (hereinafter, the "BANK"), a national
     banking association, having a principal place business at 100 Federal
     Street, Boston, Massachusetts;

     BancBoston Leasing Inc. (hereinafter, "BBL"), a Massachusetts corporation
     having a principal place of business at 100 Federal Street, Boston,
     Massachusetts;

     Centennial Technologies, Inc. (hereinafter, the "BORROWER"), a corporation
     organized under the laws of the State of Delaware, having a principal place
     of business at 37 Manning Road, Billerica, Massachusetts;

     NCT, Inc. (hereinafter, "NCT"), a corporation organized under the laws of
     the Commonwealth of Massachusetts, having a principal place of business at
     37 Manning Road, Billerica, Massachusetts;

     Century Electronics Manufacturing, Inc. (f/k/a Century Industries, Inc.)
     (hereinafter, "CENTURY"), a corporation organized under the laws of the
     State of Delaware, having a principal place of business at 37 Manning Road,
     Billerica, Massachusetts; and

     Design Circuits, Inc. (hereinafter "DCI"), a corporation organized under
     the laws of the Commonwealth of Massachusetts, having a principal place of
     business at 374 Turnpike Road, Southborough, Massachusetts

in consideration of the mutual covenants herein contained and benefits to be
derived herefrom.


                                  WITNESSETH:
                                  -----------

     1.   BACKGROUND. On March 18, 1997, the Bank, BBL, and the Obligors entered
          into a certain Forbearance Agreement and Amendment (the "Original
          Agreement") with respect to the Obligors' obligations under the Loan
          Agreement, their respective Guaranties and the Master Lease Agreement.
          The Forbearance Period has expired and the Bank, BBL and the Obligors
          desire to extend same and otherwise modify the Original Agreement on
          the terms set forth herein.

     2.   DEFINITIONS. All capitalized terms used herein and not otherwise
          defined shall have the same meaning herein as in the Original
          Agreement.



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     3.   OUTSTANDING OBLIGATIONS.
          -----------------------

          (a)  The Borrower and each of the Guarantors (individually, each an
               "OBLIGOR" and collectively, the "OBLIGORS") acknowledge and agree
               that they are jointly and severally obligated to the Bank to pay
               the Obligations and that as of April 18, 1997, the Obligations
               consist of:

               Principal:                        $8,406,554.45
               Interest through April 18, 1997:  $   37,831.89

          plus interest hereafter accruing, costs, and expenses, including,
          without limitation, attorneys' fees, consultants' fees, and commercial
          finance examination fees.

          (b)  The Borrower acknowledges and agrees that SCHEDULE 1 hereto
               accurately reflects the original cost of the property subject to
               the Master Lease Agreement and schedules thereto, which is
               presently owned by BBL.

          (c)  The Obligors further acknowledge and agree that none of them have
               any offsets, defenses, or counterclaims (i) against the Bank with
               respect to the Loan Agreement, the Guaranties, the other Loan
               Documents, or otherwise, or (ii) against BBL with respect to the
               Master Lease Agreement, or otherwise, and to the extent that any
               such offsets, defenses or counterclaims may exist, the Obligors
               each hereby WAIVE and RELEASE same. The Obligors shall execute
               and deliver to the Bank and BBL such releases as the Bank or BBL
               may request to confirm the foregoing.

          (d)  The Obligors each ratify and confirm that their respective
               obligations to the Bank (as modified hereby), including, without
               limitation, those under the Loan Agreement and the Guaranties,
               are secured by the Collateral and the Guarantor Assets.

          (e)  The Borrower ratifies and confirms that its obligations to BBL
               are secured by the Collateral.

     4.   FORBEARANCE BY BANK. The provisions of Section 4 of the Original
          Agreement are hereby amended by deleting the date April 18, 1997
          appearing in clause (i) and substituting the date June 30, 1997 in its
          stead.


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     5.   AMENDMENTS TO LOAN DOCUMENTS. From and after the date hereof the Loan
          Documents are hereby amended as follows (which amendment shall 
          survive the expiration of the Forbearance Period):

          (a)  Section 1.1 of the Loan Agreement is hereby amended by deleting
               the definition of "Borrowing Base" in its entirety and
               substituting the following in its stead:

               BORROWING BASE. ON ANY DATE OF DETERMINATION THEREOF, THE LESSER
               OF

               (A) $10,000,000, MINUS THE AGGREGATE FACE AMOUNT OF ALL
               OUTSTANDING LETTERS OF CREDIT, IN THE AMOUNTS ORIGINALLY ISSUED
               OR AS REDUCED PURSUANT TO THEIR TERMS, WHICH ARE EITHER
               OUTSTANDING OR WHICH HAVE BEEN DRAWN AND PAID BY THE BANK BUT NOT
               REIMBURSED BY THE BORROWER, OR

               (B) THE SUM OF (I) 80% OF ELIGIBLE ACCOUNTS AND (II) THE LESSER
               OF (A) 35% OF ELIGIBLE INVENTORY AND (B) $5,500,000 (OR SUCH
               LESSER PERCENTAGES OR AMOUNTS AS THE BANK MAY IN ITS REASONABLE
               DISCRETION DETERMINE FROM TIME TO TIME UPON THIRTY DAYS WRITTEN
               NOTICE TO THE BORROWER) AND (III) THE LESSER OF (A) $1,125,000.00
               OR (B) THE UNPAID AND OUTSTANDING AMOUNT OF THE FEDERAL INCOME
               TAX REFUND PAYABLE TO THE BORROWER FOR TAX YEARS ENDING PRIOR TO
               FEBRUARY 28, 1997, MINUS THE SUM OF (I) $2,000,000 AND (II) THE
               AGGREGATE FACE AMOUNT OF ALL OUTSTANDING LETTERS OF CREDIT, IN
               THE AMOUNTS ORIGINALLY ISSUED OR AS REDUCED PURSUANT TO THEIR
               TERMS, WHICH ARE EITHER OUTSTANDING OR WHICH HAVE BEEN DRAWN AND
               PAID BY THE BANK BUT NOT REIMBURSED BY THE BORROWER.

          (b)  Section 1.1 of the Loan Agreement is hereby amended by deleting
               the definition of "Maximum Commitment" in its entirety and
               substituting the following in its stead:

               MAXIMUM COMMITMENT. $10,000,000 OR ANY LESSER AMOUNT, INCLUDING
               ZERO, RESULTING FROM A TERMINATION OR REDUCTION OF SUCH AMOUNT IN
               ACCORDANCE WITH THE TERMS OF THIS AGREEMENT.

          (c)  The provisions of Section V of the Loan Agreement are hereby
               amended by adding the following new sections:

               5.14. CONSOLIDATED TANGIBLE NET WORTH. THE BORROWER SHALL AT ALL
               TIMES MAINTAIN A CONSOLIDATED TANGIBLE NET WORTH OF AT LEAST
               $37,000,000.

               5.15. CONSOLIDATED EBIT. THE BORROWER SHALL NOT PERMIT
               CONSOLIDATED EBIT FOR ANY MONTH, DETERMINED AT THE END OF


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               EACH FISCAL MONTH OF THE BORROWER, TO BE LESS THAN THE FOLLOWING:

               MONTH                         EBIT
               -----                         ----

               APRIL, 1997                   ($200,000)
               MAY, 1997                     $1,000, PLUS, IF EBIT AS REPORTED 
                                             IN APRIL, 1997 WAS NEGATIVE, AN   
                                             AMOUNT EQUAL TO THE DIFFERENCE    
                                             BETWEEN $1,000 AND THE ACTUAL EBIT
                                             FOR APRIL, 1997                   
               JUNE, 1997 AND EACH MONTH 
                  END THEREAFTER             $1,000



               FOR PURPOSES OF CALCULATING CONSOLIDATED EBIT, THERE SHALL BE
               EXCLUDED IN THE CALCULATION OF CONSOLIDATED NET INCOME OF THE
               BORROWER ALL ATTORNEYS, AUDITORS, AND CONSULTANTS' FEES INCURRED
               BY THE COMPANY IN CONNECTION WITH ITS PRESENT RESTRUCTURING.

     6.   AMENDMENTS TO SECTION 6. The provisions of Section 6 of the Original
          Agreement are hereby amended as follows.

     o    The provisions of Section 6(b) are hereby amended by adding the
          following sentence immediately after the second sentence of that
          section:

               ANY SUCH INCOME TAX REFUNDS OR PROCEEDS (INCLUDING, WITHOUT
               LIMITATION, PROCEEDS FROM THE SALE OR OTHER DISPOSITION OF
               CENTURY AND TRIAX) SHALL PERMANENTLY REDUCE THE MAXIMUM
               COMMITMENT AND THE AMOUNT SET FORTH IN CLAUSE (a) OF THE
               DEFINITION OF BORROWING BASE.

     o    The provisions of Section 6(h) of the Original Agreement are hereby
          amended by deleting the date "April 11, 1997" appearing in clause (i)
          thereof and substituting the date June 23, 1997 in its stead.

     o    The following new subsections are hereby added to Section 6 of the
          Original Agreement:

          n.   THE OBLIGORS HAVE ADVISED THE BANK AND BBI THAT THE INTEND TO
               SELL AND DISPOSE OF A PORTION OF THEIR INTERESTS IN CENTURY AND
               TRIAX. THE OBLIGORS SHALL KEEP THE BANK REASONABLY INFORMED AS TO
               THE STATUS OF ANY OFFERS, NEGOTIATIONS, OR AGREEMENTS FOR THE
               SALE OR DISPOSITION OF A PORTION OF THEIR INTERESTS IN CENTURY
               AND TRIAX. ANY SUCH SALE OR DISPOSITION SHALL BE SUBJECT TO THE
               CONSENT OF THE BANK AND BBL, AND NOTHING CONTAINED HEREIN SHALL
               CONSTITUTE THE



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               AGREEMENT OF OR CONSENT BY THE BANK OR BBL TO ANY SUCH SALE OR
               DISPOSITION.

          o.   IN CONSIDERATION OF THE BANK'S ENTERING INTO THE FIRST AMENDMENT
               TO FORBEARANCE AGREEMENT AND EXTENDING THE FORBEARANCE PERIOD,
               UPON THE EXECUTION HEREOF, THE BORROWER SHALL PAY THE BANK THE
               SUM OF $21,000 AS AN ADDITIONAL FORBEARANCE FEE. SUCH FEE SHALL
               BE FULLY EARNED UPON PAYMENT AND SHALL NOT BE SUBJECT TO REFUND
               OR REBATE UNDER ANY CIRCUMSTANCES. THE FORBEARANCE FEE SHALL NOT
               BE APPLIED IN REDUCTION TO THE PRINCIPAL, INTEREST OR OTHER
               AMOUNTS DUE IN CONNECTION WITH THE LOAN ARRANGEMENT.

     7.   The provisions of Section 7 of the Original Agreement are hereby
          amended as follows:

     o    By deleting the provisions of Section 7(f) and substituting the
          following in its stead:


          f.   THE FAILURE OF THE OBLIGORS, ON OR BEFORE MAY 2, 1997, TO FURNISH
               THE BANK WITH A VALID, BINDING AND ARMS-LENGTH PURCHASE AND SALE
               AGREEMENT FOR THE SALE OF A PORTION OF THEIR INTERESTS IN EACH OF
               CENTURY AND TRIAX.

     o    The provisions of Section 7 of the Original Agreement are hereby
          amended by adding the following new Termination Events:

          g.   THE FAILURE OF THE OBLIGORS, ON OR BEFORE MAY 20, 1997, TO
               FURNISH THE BANK WITH EVIDENCE SATISFACTORY TO THE BANK THAT THE
               PURCHASERS UNDER THE PURCHASE AND SALE AGREEMENTS REFERRED TO IN
               SECTION 7(f) HAVE OBTAINED FINANCING AND/OR OTHERWISE WILL BE
               ABLE TO CONSUMMATE THE ACQUISITIONS CONTEMPLATED BY THE PURCHASE
               AND SALE AGREEMENTS.

          h.   THE FAILURE OF THE OBLIGORS, ON OR BEFORE JUNE 15, 1997, TO HAVE
               CONSUMMATED THE SALE OF A PORTION OF THEIR INTERESTS IN EACH OF
               CENTURY AND TRIAX ON TERMS SATISFACTORY TO THE BANK.

     8.   GENERAL.
          ------- 

          (a)  This Agreement shall be binding upon each Obligor and such
               Obligor's successors, and assigns and shall enure to the benefit
               of BBL, the Bank and BBL's and the Bank's successors and assigns.
               In the event that BBL or the Bank assigns or transfers its rights
               under this Agreement, the assignee shall thereupon succeed to and
               become vested with all rights, powers, privileges, and duties of
               BBL or the Bank hereunder and BBL or the Bank shall



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               thereupon be discharged and relieved from its duties and
               obligations hereunder.

          (b)  Any determination that any provision of this Agreement or any
               application thereof is invalid, illegal, or unenforceable in any
               respect in any instance shall not affect the validity, legality,
               or enforceability of such provision in any other instance, or the
               validity, legality, or enforceability of any other provision of
               this Agreement.

          (c)  No delay or omission by BBL or the Bank in exercising or
               enforcing any of BBL's or the Bank's rights and remedies shall
               operate as, or constitute, a waiver thereof. No waiver by BBL or
               the Bank of any of BBL's or the Bank's rights and remedies on any
               one occasion shall be deemed a waiver on any subsequent occasion,
               nor shall it be deemed a continuing waiver.

          (d)  This Agreement and all other documents, instruments, and
               agreements executed in connection herewith incorporate all
               discussions and negotiations between the Obligors, BBL and the
               Bank, either express or implied, concerning the matters included
               herein and in such other instruments, any custom, usage, or
               course of dealings to the contrary notwithstanding. No such
               discussions, negotiations, custom, usage, or course of dealings
               shall limit, modify, or otherwise affect the provisions hereof.
               No modification, amendment, or waiver of any provision of this
               Agreement or of any provision of any other agreement between any
               Obligor and BBL or the Bank shall be effective unless executed in
               writing by the party to be charged with such modification,
               amendment and waiver, and if such party be BBL or the Bank, then
               by a duly authorized officer thereof.

          (e)  Except as modified hereby, all terms and conditions of the
               Original Agreement, the Master Lease Agreement, Loan Agreement,
               the Guaranties, and other Loan Documents remain in full force and
               effect. The Bank and BBL are not hereby waiving any Defaults,
               Events of Default or rights and remedies which exist under the
               Master Lease Agreement or the Loan Documents and the Bank and BBL
               reserve the right upon expiration of the Forbearance Period to
               undertake such action as a result of such Defaults and Events of
               Default as the Bank or BBL may determine. In particular,

    
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               without limiting the generality of the foregoing the Bank and BBL
               have not waived any Defaults or Events of Default, or the
               respective rights and remedies of the Bank and/or BBL arising as
               a result thereof, which may have occurred as a result of any
               misrepresentation made by or on behalf of any one or more of the
               Obligors.

          (f)  This Agreement and all rights and obligations hereunder,
               including matters of construction, validity, and performance,
               shall be governed by the laws of The Commonwealth of
               Massachusetts. The Obligors each submit to the jurisdiction of
               the Courts of said Commonwealth for all purposes with respect to
               this Agreement and the Obligors' relationship with the Bank and
               BBL.

          (g)  Each Obligor makes the following waiver knowingly, voluntarily,
               and intentionally, and understands that the Bank and BBL, in
               entering into the within Forbearance Agreement, is relying
               thereon. EACH OBLIGOR, TO THE EXTENT OTHERWISE ENTITLED THERETO,
               HEREBY IRREVOCABLY WAIVES ANY PRESENT OR FUTURE RIGHT OF THAT
               OBLIGOR TO A JURY IN ANY TRIAL OF ANY CASE OR CONTROVERSY IN
               WHICH THE BANK OR BBL IS OR BECOMES A PARTY (WHETHER SUCH CASE OR
               CONTROVERSY IS INITIATED BY OR AGAINST THE BANK OR BBL OR IN
               WHICH THE BANK OR BBL IS JOINED AS A PARTY LITIGANT), WHICH CASE
               OR CONTROVERSY ARISES OUT OF, OR IS IN RESPECT OF, ANY
               RELATIONSHIP BETWEEN THE BORROWER OR ANY SUCH PERSON AND THE BANK
               OR BBL.

          (h)  Each Obligor shall execute such instruments and documents as BBL
               and the Bank may from time to time request in connection with the
               Master Lease Agreement, Loan Agreement, the Guaranties, the Loan
               Documents, the within Agreement and the arrangements contemplated
               hereby.

     It is intended that this Agreement take effect as a sealed instrument.


CENTENNIAL TECHNOLOGIES, INC.           DESIGN CIRCUITS, INC.


By: /s/ Eugene M. Bullis                By: /s/ Walter Conroy 
   ----------------------------------      -------------------------------------

Print Name: Eugene M. Bullis            Print Name: Walter Conroy
           --------------------------               ----------------------------

Title: Chief Financial Officer          Title: President
      -------------------------------         ----------------------------------


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CENTURY ELECTRONICS                     NCT, INC. 
MANUFACTURING, INC.

By: /s/ Donald R. Peck                  By: /s/ Donald R. Peck    
   ----------------------------------     --------------------------------------

Print Name: Donald R. Peck               Print Name: Donald R. Peck
           --------------------------               ----------------------------

Title: Secretary and Treasurer          Title: President
      -------------------------------         ----------------------------------



AGREED AND ACCEPTED BY:

THE FIRST NATIONAL BANK OF BOSTON



By: /s/ Ron R. Ferguson
   ----------------------------------   

Print Name: Ron R. Ferguson
           --------------------------  

Title: Vice President
      -------------------------------  

BANCBOSTON LEASING INC.


By: /s/ Ron R. Ferguson
   ----------------------------------   

Print Name: Ron R. Ferguson
           --------------------------  

Title: Attorney In Fact 
      -------------------------------  


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                SCHEDULE TO FORBEARANCE AGREEMENT AND AMENDMENT

                            Equipment Schedule No. 9
                            Total Cost - $795,777.32