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             THIRD AMENDMENT TO FORBEARANCE AGREEMENT AND AMENDMENT
             ------------------------------------------------------

     This Third Amendment to Forbearance Agreement and Amendment is entered into
as of June 26, 1997 by and between

     BankBoston, N.A., formerly known as The First National Bank of Boston
     (hereinafter, the "BANK"), a national banking association, having a
     principal place of 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 7 Lopez Road, Wilmington, Massachusetts;

     NCT, Inc. (hereinafter, "NCT"), a corporation organized under the laws of
     the Commonwealth of Massachusetts, having a principal place of business at
     7 Lopez Road, Wilmington, 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 7 Lopez Road,
     Wilmington, 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 with respect to the
          obligors' obligations under the Loan Agreement, their respective
          Guaranties and the Master Lease Agreement, which Forbearance Agreement
          and Amendment was amended by a First Amendment to Forbearance
          Agreement dated as of April 18, 1997 and a Second Amendment to
          Forbearance Agreement dated June 4, t997 (collectively, the "ORIGINAL
          AGREEMENT"). The Bank, BBL and the Obligors desire to modify the
          Original Agreement on the terms set forth herein.


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

     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 June  , 1997, the Obligations
               consist of:

               Principal:                               $4,748,796.27
               Interest through June 26, 1997:          $   36,072.33

          plus interest hereafter accruing, costs, and expenses, including,
          without limitation, reasonable 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 suck releases as the Bank or BBL
               may request tO confirm the foregoing.

          (d)  The Obligers 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.


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     4.   FORBEARANCE BY BANK. The provisions of Section 4 of the Original
          Agreement are hereby amended by deleting the date June 30, 1997
          appearing in clause (i) and substituting the date July 31, 1997 in its
          stead.

     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.i 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) $2,000,000, 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) $2,000,000 (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), 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. $2,000,000 OR ANY LESSER AMOUNT, INCLUDING
               ZERO, RESULTING FROM A TERMINATION OR REDUCTION OF SUCH AMOUT IN
               ACCORDANCE WITH THE TERMS OF THIS AGREEMENT.

          (c)  Section 1.1 of the Loan Agreement is hereby amended by deleting
               clauses (ii) and (iii) of the definition of "Subsidiary
               Guarantees" in their entirety.

          (d)  Section 1.1 of :he Loan Agreement is hereby amended by deleting
               clauses (ii) and (iii) of the


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               definition of "Subsidiary Security Agreements" in their entirety.

          (e)  Section 1.1 of the Loan Agreement is hereby amended by deleting
               the definition of "Subsidiary Stock Pledge Agreement" in its
               entirety.

          (f)  Section 1.1 of the Loan Agreement is hereby amended by deleting
               the definition of "U.K. Security Documents" in its entirety.

          (g)  The Loan Agreement is hereby amended by deleting Section 2.7 in
               its entirety and substituting the following in its stead:

               52.7 INTEREST RATE AND PAYMENT OF INTEREST . SO LONG AS EVENT OF
               DEFAULT IS CONTINUING, EACH BASE RATE LOAN SHALL BEAR INTEREST
               FOR THE PERIOD COMMENCING WITH THE DRAWDOWN DATE THEREOF AND
               ENDING ON THE LAST DAY OF THE INTEREST PERIOD WITH RESPECT
               THERETO AT A RATE PER ANNUM EQUAL TO THE AGGREGATE OF THE BASE
               RATE AND THREE PERCENT (3%). AT THE OPTION OF THE BANK, AFTER THE
               OCCURRENCE OF AN EVENT OF DEFAULT, AMOUNTS PAYABLE UNDER ANY OF
               THE LOAN DOCUMENTS SHALL BEAR INTEREST (COMPOUNDED MONTHLY AND
               PAYABLE ON DEMAND IN RESPECT OF OVERDUE AMOUNTS) AT A RATE PER
               ANNUM WHICH IS EQUAL THE AGGREGATE OF THE BASE RATE AND FIVE
               PERCENT (5%) UNTIL SUCH AMOUNT IS PAID IN FULL OR (AS THE CASE
               MAY BE) SUCH EVENT OF DEFAULT HAS BEEN CURED OR WAIVED IN WRITING
               BY THE BANK (AFTER AS WELL AS BEFORE JUDGMENT).

          The Bank agrees that the foregoing default rate is not presently in
          effect and shall not be charged until the earlier of (i) the
          occurrence of any Termination Event, or (ii) the expiration of The
          Forbearance Period, for periods following such event.

          (h)  Section 6.9 of the Loan Agreement is hereby amended by adding the
               following clause at the end of clause (iii) thereof:

               AND (IV) INVESTMENTS CONSISTING OF LOANS TO ITS SUBSIDIARY, ITP,
               IN AN AMOUNT NOT TO EXCEED $673,000, PLUS THE LESSER OF (A)
               $50,000 PER WEEK, COMMENCING WITH THE WEEK ENDING JUNE 27, 1997,
               OR (B) $200,000 IN THE AGGREGATE.

     6.   RELEASE OF CERTAIN GUARANTOR'S ASSETS.
          --------------------------------------

               Contemporaneously herewith, DCI is entering into a financing
          arrangement with Congress Financial, the proceeds of which shall be
          utilized, in part, to repay indebtedness due from DCI to the Borrower
          and to purchase certain of the equipment leased by BBL to the Borrower
          and utilized by DCI. A portion of the


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          proceeds received by the Borrower shall be paid to the Bank and BBL to
          reduce the Borrower's Obligations to each of them. In connection with
          such financing, DCI and Century have requested that the Bank release
          its security interest in the assets of DCI and Century and release DCI
          and Century from their Guaranties and that BBL transfer title to the
          agreed upon equipment to the Borrower. Upon the receipt of the
          following amounts by the Bank and BBL, tke Bank shall release its
          security interest in the assets of DCI and Century and the Guaranties
          of DCI and Century and BBL shall transfer title to such equipment to
          the Borrower.

               To Be Applied to the Borrower's Obligations to Bank:
          $3,298,624.15 (plus such additional amounts, if any, as may be
          necessary to reduce the Borrower's Obligations to $1,900,000.00)

               To Be Applied to BBL Lease Obligations:    $1,042,682.85

               Upon receipt of the amounts set forth above, the Bank will (a)
          execute and deliver all necessary discharges, releases and other
          documents that may be necessary to release (i) any security interest
          held by the Bank in and to the Guarantors' assets, and (ii) the
          Guaranties, and (b) release the original stock certificates of DCI and
          3,928,000 of the shares of Century which have been pledged to the
          Bank, and BBL shall execute such documentation as may be necessary to
          transfer title to the agreed upon equipment to the Borrower.

     7.   AMENDMENT TO CONDITIONS TO FORBEARANCE.
          ---------------------------------------

          The Conditions to Forbearance set forth in the Original Agreement are
          hereby amended as follows:

          (a)  The provisions of Paragraph 6(h) of the Original Agreement are
               hereby deleted in their entirety.

          (b)  The existing Intercompany Note from DCI payable to the Borrower
               shall be replaced by a new Intercompany Note in the principal sum
               of $2,891,125.00 on terms reasonably acceptable to the Bank. The
               new Intercompany Note shall continue to be collaterally assigned
               to the Bank and BBL as further security for the Obligations and
               the Master Lease Agreement.

          (c)  In consideration of the Bank's entering into this Third
               Amendment, upon the execution hereof, the



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               Borrower shall pay the Bank the sum of Two Thousand Five Hundred
               and no/100 Dollars ($2,500.00) as a 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 of the principal, interest or
               other amounts due in connection with the loan arrangement.

          (d)  Upon the execution hereof, the Borrower shall pay all reasonable
               costs and expenses, including, without limitation, reasonable
               attorneys' fees, consultants' fees, and commercial finance
               examination fees, which have been incurred by the Bank and BBL in
               connection with its loan and lease arrangements with the
               Borrower.

          (e)  During the Forbearance Period, the Borrower (a) shall not permit
               its tangible net worth (determined in accordance with generally
               accepted accounting principles) to be less than $29,000,000 at
               any time, and (b) shall not incur a loss (determined in
               accordance with generally accepted accounting principles) during
               any calendar month in excess of $250,000.00.

          (f)  All other Conditions to Forbearance set forth in the Original
               Agreement remain in full force and effect.

     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
               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


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               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. Without limiting the foregoing, the parties acknowledge
               that the Forbearance Period will expire, unless sooner
               terminated, on July 31, 1997. 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, 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 resu1t of any


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               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 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.


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     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/ Donald R. Peck 
   ----------------------------------      -------------------------------------

Print Name: Eugene M. Bullis            Print Name:  Donald R. Peck 
           --------------------------               ----------------------------

Title: Chief Financial Officer          Title: Treasurer and Clerk 
      -------------------------------         ----------------------------------



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:

BANKBOSTON, N.A. f/k/a
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: V. P.              
      -------------------------------