DELTA COMPUTEC INC
8-K/A, 1996-11-06
COMPUTERS & PERIPHERAL EQUIPMENT & SOFTWARE
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<PAGE>
                       SECURITIES AND EXCHANGE COMMISSION
                              Washington, DC 20549

                                    FORM 8-K

                             Current Report Pursuant
                          to Section 13 or 15(d) of the
                         Securities Exchange Act of 1934

       Date of Report (Date of Earliest Event Reported): October 10, 1996

                               Delta Computec Inc.
             (Exact Name of Registrant as Specified in its Charter)

                                    New York
                 (State or Other Jurisdiction of Incorporation)

     0-14733                                            16-1146345
(Commission File Number)                    (I.R.S. Employer Identification No.)

                366 White Spruce Blvd., Rochester, New York 14623
               (Address of Principal Executive Offices) (Zip Code)

                                  201-440-8585
              (Registrant's Telephone Number, Including Area Code)

                                 Not Applicable
          (Former Name or Former Address, if Changed Since Last Report)

Total number of pages in Report (including Exhibits)   215

Exhibit Index located on page 6

<PAGE>
                    INFORMATION TO BE INCLUDED IN THE REPORT

Item 7. Financial Statements and Exhibits.

     (c) Exhibits.

     A. The following Exhibits constituting the original Credit Agreement
entered into between the Registrant, Data Net, and SAI/Delta and NCFC on April
1, 1994, and Amendments Nos. 1 and 2 to the original Credit Agreement, have
previously been furnished as Exhibits to the Registrant's Annual Report on Form
10-K for the Fiscal Year ended October 31, 1994, and Amendments Nos. 3 through 5
to the original Credit Agreement, and the letter agreements dated May 1, 1995,
and May 4, 1995, with Lobozzo relating to Lobozzo providing a commitment to
advance up to $400,000 to the Registrant as part of an Overadvance Facility with
NCFC, and granting a stock option to Lobozzo which grants to Lobozzo the right
to purchase up to 11,440,475 of the Registrant's common shares, have previously
been furnished as Exhibits to the Registrant's Annual Report on Form 10-K for
the fiscal year ended October 31, 1995 or the Registrant's Current Report on
Form 8-K dated May 4, 1995. .

     B. The following Exhibits: (a) letter between Data Net and NCFC dated March
8, 1996; (b) Forbearance Agreement between the Registrant, Data Net and NCFC
dated March 8, 1996; (c) Release and Indemnification Agreement between the
Registrant, Data Net and NCFC dated March 8, 1996; (d) Reaffirmation of Guaranty
between SAI/Delta and NCFC dated March 8, 1996; (e) Letter between NCFC and Data
Net dated March 6, 1996; and (f) Reaffirmation of Subordination dated March 8,
1996, between Lobozzo and NCFC, constituting documents relative to the
disposition of the assets of Data Net, have previously been furnished as
Exhibits to the Registrant's Current Report on Form 8-K filed March 21, 1996.

     C. The following Exhibits, constituting promissory notes issued by the
Registrant under the Existing NCFC Loan, are filed as part of this Report:

     1. Amended and Restated Promissory Note from the Registrant to NCFC dated
May 1, 1995.

     2. Third Amended and Restated Promissory Note from the Registrant to NCFC
dated October 27, 1995.

     D. The following Exhibits, constituting amendments to the Forbearance
Agreement, and letters extending the date of the expiration of the Forbearance
Period (as defined in the Forbearance Agreement), are filed as part of this
Report:

<PAGE>
     3. Amendment No. 1 to Forbearance Agreement dated May 9, 1996.

     4. Amendment No. 2 to Forbearance Agreement dated May 21, 1996.

     5. Amendment No. 3 to Forbearance Agreement dated June 14, 1996.

     6. Amendment No. 4 to Forbearance Agreement dated July 31, 1996.

     7. Amendment No. 5 to Forbearance Agreement dated August 15, 1996.

     8. Amendment No. 6 to Forbearance Agreement dated September 9, 1996.

     9. Letter from NCFC to the Registrant dated October 1, 1996, extending the
Forbearance Period to October 3, 1996.

     10. Letter from NCFC to the Registrant dated October 4, 1996, extending the
Forbearance Period to October 9, 1996.

     11. Letter from NCFC to the Registrant dated October 10, 1996, extending
the Forbearance Period to October 10, 1996.

     E. The following Exhibits, constituting the NCFC Restructuring Documents,
are filed as part of this Report:

     12. Assignment from NCFC to Lobozzo dated October 10, 1996.

     13. Amended and Restated Promissory Note from the Registrant to NCFC dated
October 10, 1996, in the principal face amount of $750,000.

     14. Intercreditor Agreement between NCFC and Lobozzo dated October 10,
1996.

     15. Amended and Restated Security Agreement between the Registrant and NCFC
dated October 10, 1996.

     16. Pledge Security Agreement between Lobozzo and NCFC dated October 10,
1996.

     17. Form of Warrant from the Registrant to Lobozzo (the "DCI Warrant"),
attached as Exhibit A to the Pledge Security Agreement, Exhibit 16, above, to be
used in the event the

<PAGE>
shareholders of the Registrant approve the issuance thereof.

     18. Form of Stock Option from the Registrant to NCFC (the "Assigned
Option"), attached as Exhibit B to the Pledge Security Agreement, Exhibit 16,
above, to be used in the event the shareholders of the Registrant do not approve
the issuance of the DCI Warrant.

     19. Form of Assignment Agreement from Lobozzo to NCFC to be used in the
event Lobozzo issues to NCFC the Assigned Option.

     20. Form of Stock Option from the Registrant to Lobozzo to be issued in the
event Lobozzo issues to NCFC the Assigned Option.

     21. Limited Non-Recourse Guaranty and Suretyship Agreement between Lobozzo
and NCFC dated October 10, 1996.

     22. Document from NCFC showing the payoff amounts for the Existing NCFC
Loan as of October 10, 1996.

     23. Letter from NCFC to the Registrant dated October 10, 1996,
acknowledging receipt from Lobozzo on October 10, 1996, of $1,544,661.10, with
regard to the NCFC Restructuring and assignment of a portion of the Existing
NCFC Loan to Lobozzo.

     24. Form of letter sent to customers of the Registrant advising the
customers of a different lock box address.

     25. Amended and Restated Credit Agreement between the Registrant, Data Net
and Lobozzo dated October 10, 1996.

     26. Amended and Restated Promissory Note from the Registrant to Lobozzo in
the principal maximum face amount of $2,550,000, dated October 10, 1996.

     27. Amended and Restated General Security Agreement between the Registrant,
Data Net and Lobozzo, dated October 10, 1996.

     28. Amended and Restated Unlimited Continuing Guaranty from SAI/Delta to
Lobozzo, dated October 10, 1996.

     29. Amended and Restated General Security Agreement from SAI/Delta to
Lobozzo, dated October 10, 1996.

<PAGE>
     30. Cash Management Services Agreement between the Registrant and
Manufacturers & Traders Trust Company.

     31. Letter from NCFC dated April 24. 1996, advising Data Net that
$122,182.10 had been applied by NCFC to the outstanding Data Net loan as a
result of the liquidation of the Data Net assets.

                                   SIGNATURES

     Pursuant to the requirements of the Securities Exchange Act of 1934, the
Registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.

                                       Delta Computec Inc.
                                           Registrant

Date: October 24, 1996                 By: s/s John DeVito
                                           John DeVito, President

<PAGE>
                                INDEX TO EXHIBITS

     A. The following Exhibits constituting the original Credit Agreement
entered into between the Registrant, Data Net, and SAI/Delta and NCFC on April
1, 1994, and Amendments Nos. 1 and 2 to the original Credit Agreement, have
previously been furnished as Exhibits to the Registrant's Annual Report on Form
10-K for the Fiscal Year ended October 31, 1994. The following Exhibits
constituting Amendments Nos. 3 through 5 to the original Credit Agreement, and
the letter agreements dated May 1, 1995, and May 4, 1995, with Lobozzo relating
to Lobozzo providing a commitment to advance up to $400,000 to the Registrant as
part of an Overadvance Facility with NCFC, and granting a stock option to
Lobozzo which grants to Lobozzo the right to purchase up to 11,440,475 of the
Registrant's common shares, have previously been furnished as Exhibits to the
Registrant's Annual Report on Form 10-K for the fiscal year ended October 31,
1995 or the Registrant's Current Report on Form 8-K dated May 4, 1995.

     B. The following Exhibits: (a) letter between Data Net and NCFC dated March
8, 1996; (b) Forbearance Agreement between the Registrant, Data Net and NCFC
dated March 8, 1996; (c) Release and Indemnification Agreement between the
Registrant, Data Net and NCFC dated March 8, 1996; (d) Reaffirmation of Guaranty
between SAI/Delta and NCFC dated March 8, 1996; (e) Letter between NCFC and Data
Net dated March 6, 1996; and (f) Reaffirmation of Subordination dated March 8,
1996, between Lobozzo and NCFC, constituting documents relative to the
disposition of the assets of Data Net, have previously been furnished as
Exhibits to the Registrant's Current Report on Form 8-K filed March 21, 1996.

     C. The following Exhibits, constituting promissory notes issued by the
Registrant under the Existing NCFC Loan, are filed as part of this Report:

     1. Amended and Restated Promissory Note from the Registrant to NCFC dated
May 1, 1995.

     2. Third Amended and Restated Promissory Note from the Registrant to NCFC
dated October 27, 1995.

     D. The following Exhibits, constituting amendments to the Forbearance
Agreement, and letters extending the date of the expiration of the Forbearance
Period (as defined in the Forbearance Agreement), are filed as part of this
Report:

     3. Amendment No. 1 to Forbearance Agreement dated May 9, 1996.

     4. Amendment No. 2 to Forbearance Agreement dated May 21, 1996.

     5. Amendment No. 3 to Forbearance Agreement dated June 14, 1996.

<PAGE>
     6. Amendment No. 4 to Forbearance Agreement dated July 31, 1996.

     7. Amendment No. 5 to Forbearance Agreement dated August 15, 1996.

     8. Amendment No. 6 to Forbearance Agreement dated September 9, 1996.

     9. Letter from NCFC to the Registrant dated October 1, 1996, extending the
Forbearance Period to October 3, 1996.

     10. Letter from NCFC to the Registrant dated October 4, 1996, extending the
Forbearance Period to October 9, 1996.

     11. Letter from NCFC to the Registrant dated October 10, 1996, extending
the Forbearance Period to October 10, 1996.

     E. The following Exhibits, constituting the NCFC Restructuring Documents,
are filed as part of this Report:

     12. Assignment from NCFC to Lobozzo dated October 10, 1996.

     13. Amended and Restated Promissory Note from the Registrant to NCFC dated
October 10, 1996, in the principal face amount of $750,000.

     14. Intercreditor Agreement between NCFC and Lobozzo dated October 10,
1996.

     15. Amended and Restated Security Agreement between the Registrant and NCFC
dated October 10, 1996.

     16. Pledge Security Agreement between Lobozzo and NCFC dated October 10,
1996.

     17. Form of Warrant from the Registrant to Lobozzo (the "DCI Warrant"),
attached as Exhibit A to the Pledge Security Agreement, Exhibit 16, above, to be
used in the event the shareholders of the Registrant approve the issuance
thereof.

     18. Form of Stock Option from the Registrant to NCFC (the "Assigned
Option"), attached as Exhibit B to the Pledge Security Agreement, Exhibit 16,
above, to be used in the event the shareholders of the Registrant do not approve
the issuance of the DCI Warrant.

     19. Form of Assignment Agreement from Lobozzo to NCFC to be used in the
event Lobozzo issues to NCFC the Assigned Option.

<PAGE>
     20. Form of Stock Option from the Registrant to Lobozzo to be issued in the
event Lobozzo issues to NCFC the Assigned Option.

     21. Limited Non-Recourse Guaranty and Suretyship Agreement between Lobozzo
and NCFC dated October 10, 1996.

     22. Document from NCFC showing the payoff amounts for the Existing NCFC
Loan as of October 10, 1996.

     23. Letter from NCFC to the Registrant dated October 10, 1996,
acknowledging receipt from Lobozzo on October 10, 1996, of $1,544,661.10, with
regard to the NCFC Restructuring and assignment of a portion of the Existing
NCFC Loan to Lobozzo.

     24. Form of letter sent to customers of the Registrant advising the
customers of a different lock box address.

     25. Amended and Restated Credit Agreement between the Registrant, Data Net
and Lobozzo dated October 10, 1996.

     26. Amended and Restated Promissory Note from the Registrant to Lobozzo in
the principal maximum face amount of $2,550,000, dated October 10, 1996.

     27. Amended and Restated General Security Agreement between the Registrant,
Data Net and Lobozzo, dated October 10, 1996.

     28. Amended and Restated Unlimited Continuing Guaranty from SAI/Delta to
Lobozzo, dated October 10, 1996.

     29. Amended and Restated General Security Agreement from SAI/Delta to
Lobozzo, dated october 10, 1996.

     30. Cash Management Services Agreement between the Registrant and
Manufacturers & Traders Trust Company.

     31. Letter from NCFC dated April 24, 1996, advising Data Net that $
122,182.10 had been applied by NCFC to the outstanding Data Net loan as a result
of the liquidation of the Data Net assets.



<PAGE>
       THIS DOCUMENT IS A COPY OF THE EXHIBIT FILED ON OCTOBER 24, 1996
             PURSUANT TO A RULE 201 TEMPORARY HARDSHIP EXEMPTION.

                              AMENDED AND RESTATED
                                 PROMISSORY NOTE
                                 ---------------


$4,500,000.00                                                 Syracuse, New York
                                                                     May 1, 1995


     For Value Received,  DELTA COMPUTEC INC., and DELTA DATA NET, INC., each of
which is a New York  corporation  with its principal office at 6647 Old Thompson
Road,  Syracuse,  New York  (collectively,  Borrower"),  jointly  and  severally
promise to pay to the order of NATIONAL CANADA FINANCE CORPORATION ("Lender") in
lawful money of the United  States of America,  at its office  located at Suite+
2540, Main Place Tower, 250 Main Street, Buffalo, New York 14202 or, at Lender's
option,  at such  other  place  as may be  designated  from  time to time by the
lender,  a principal  amount  equal to the lesser of FOUR  MILLION  FIVE HUNDRED
THOUSAND  DOLLARS  ($4,500,000.00),  or the aggregate unpaid principal amount of
all loans made by the Lender under a Credit Agreement  ("Agreement") between the
borrower and the Lender dated April 1, 1994, as amended,  together with interest
thereon.

     This Note is intended to evidence "Revolving Credit Loans" made pursuant to
a Revolving Credit Facility under Section 2 of the Agreement, and "Overadvances"
made under the NCFC  overadvance  Facility under Section 9 of the Agreement.  In
this Note loans under either facility are sometimes  referred to collectively as
"Loans."

     All Overadvances,  with accrued interest thereon,  shall be paid in full on
or before April 30, 1996 (the "Overadvance Maturity Date"). All Revolving Credit
Loans, with accrued interest  thereon,  shall be paid in full on or before April
30, 1997 ("Revolving Credit Maturity Date").

     Loans evidenced by this Note shall bear interest from the date hereof until
maturity  (whether by  acceleration  or  otherwise)  on the balance of principal
thereof  from time to time unpaid at a rate per annum equal to 1.5% in excess of
the Prime Rate, as defined below, in the case of Revolving  Credit Loans, and at
a rate  per  annum  equal to 2.5% in  excess  of the  Prime  Rate in the case of
Overadvances.  After maturity  (whether by  acceleration or otherwise) this note
shall bear interest on the unpaid  principal hereof at a rate per annum equal to
3.5% in  excess of the Prime  Rate in the case in the case of  Revolving  Credit
Loans,  and at a rate per annum equal to 4.5% in excess of the Prime Rate in the
case of Overadvances,  provided, however, in no event shall the rate of interest
on this Note exceed the maximum rate  authorized  by  applicable  law.  Interest
shall be calculated on the basis of one three hundred sixtieth  (1/360th) of the
rate hereon for each  calendar day such  balance of  principle is unpaid,  which
will result in a higher effective annual rate. Interest shall be payable monthly
on the first day of each month  until the  applicable  Maturity  Date and on the
date the principle  balance hereof is paid in full. The rate of interest on this
Note shall change  simultaneously with a corresponding change in the Prime Rate.

The Prime Rate means the National  Bank of Canada prime rate as announced in the
United States as it may change from time to time
                                                             Page 1 of 207 Pages
<PAGE>


     The Lender's  records shall  constitute  prima facie evidence of all loans,
and of all payments on this note.

     No failure by Lender to exercise, and no delay in exercising,  any right or
power  hereunder  shall  operate  as a waiver  thereof,  nor shall any single or
partial  exercise by lender of any right or power  hereunder  preclude any other
rights or power.  The  rights and  remedies  of Lender as herein  specified  are
cumulative  and not  exclusive  of any other  rights or  remedies  of Lender may
otherwise have.

     No Modification,  rescission, waiver, release or amendment of any provision
of this  Note  shall be made  expect by  written  agreement  subscribed  by duly
authorized officers of the Company and the lender.

     Reference is hereby made to the  Agreement for  provisions  with respect to
prepayment, collateral and rights of acceleration of the principal hereof on the
occurrence of certain events.

     Borrower  agrees to pay all reasonable  costs and expenses  incurred by the
holder  in  enforcing  this Note or in  collecting  the  indebtedness  evidenced
hereby,  including,  without  limitation,  if the holder retains counsel for any
such purpose, reasonable attorney' fees and expenses.

     Borrower hereby waives diligence, presentment, protest and demand, and also
notice of protest, demand, dishonor and nonpayment of this Note.

     This Note shall be construed under and governed by the internal laws of the
State of New York in effect from time to time without  regard to  principles  of
conflicts of laws.

     The obligations of the undersigned under this Note are joint and several.

     This Note amends and  restates a  Promissory  Note  executed by Borrower on
April 1, 1994, and as previously amended and restated on November 17, 1994.


                                              DELTA COMUTEC INC.

                                              By:________________________
                                                       John DeVito, President

                                              DELTA DATA NET, INC.

                                              By:_________________________
                                                       John DeVito, President

                                                             Page 2 of 207 Pages


<PAGE>
       THIS DOCUMENT IS A COPY OF THE EXHIBIT FILED ON OCTOBER 24, 1996
             PURSUANT TO A RULE 201 TEMPORARY HARDSHIP EXEMPTION.

                              AMENDED AND RESTATED
                                 PROMISSORY NOTE
                                 ---------------

$4,500,000.00                                                 Syracuse, New York
                                                                   October, 1995


     For Value Received,  DELTA COMPUTEC INC., and DELTA DATA NET, INC., each of
which is a New York  corporation  with its principal  office at 366 White Spruce
Boulevard, Rochester, NY 14623 (collectively,  Borrower"), jointly and severally
promise to pay to the order of NATIONAL CANADA FINANCE CORPORATION ("Lender") in
lawful  money of the United  States of America,  at its office  located at Suite
2540, Main Place Tower, 250 Main Street, Buffalo, New York 14202 or, at Lender's
option,  at such  other  place  as may be  designated  from  time to time by the
lender,  a principal  amount  equal to the lesser of FOUR  MILLION  FIVE HUNDRED
THOUSAND  DOLLARS  ($4,500,000.00),  or the aggregate unpaid principal amount of
all loans made by the Lender under a Credit Agreement  ("Agreement") between the
borrower and the Lender dated April 1, 1994, as amended,  together with interest
thereon.

     This Note is intended to evidence "Revolving Credit Loans" made pursuant to
a Revolving Credit Facility under Section 2 of the Agreement, and "Overadvances"
made under the NCFC  Overadvance  Facility under Section 9 of the Agreement.  In
this Note loans under either facility are sometimes  referred to collectively as
"Loans."

     All Overadvances,  with accrued interest thereon,  shall be paid in full on
or before April 30, 1996 (the "Overadvance Maturity Date"). All Revolving Credit
Loans, with accrued interest  thereon,  shall be paid in full on or before April
30, 1997 ("Revolving Credit Maturity Date").

     Loans evidenced by this Note shall bear interest from the date hereof until
maturity  (whether by  acceleration  or  otherwise)  on the balance of principal
thereof from time to time unpaid at a rate per annum which are stipulated in the
Credit  Agreement  as amended  from time to time.  After  Maturity  (whether  by
acceleration or otherwise) this note shall bear interest on the unpaid principal
hereof at a rate per annum  equal to 4.0% in  excess of the Prime  Rate,  in the
case of Revolving  Credit Loans, and at a rate per annum equal to 5.0% in excess
of the Prime Rate in the case of overadvances,  provided,  however,  in no event
shall the rate of interest on this Note exceed the Maximum  rate  authorized  by
applicable  law.  Interest shall be calculated on the basis of one three hundred
sixtieth  (1/360th)  of the rate hereon for each  calendar  day such  balance of
principle  is  unpaid,  which will  result in a higher  effective  annual  rate.
Interest  shall be  payable  monthly  on the first day of each  month  until the
applicable Maturity Date and on the date the principle balance hereof is paid in
full.  The rate of  interest  on this Note shall  change  simultaneously  with a
corresponding  change in the Prime Rate.  The Prime Rate means the National Bank
of Canada  prime rate as  announced  in the United  States as it may change from
time to time.


                                                             Page 3 of 207 Pages
<PAGE>


     The Lender's  records shall  constitute  prima facie evidence of all loans,
and of all payments on this note.

     No failure by Lender to exercise, and no delay in exercising,  any right or
power  hereunder  shall  operate  as a waiver  thereof,  nor shall any single or
partial  exercise by lender of any right or power  hereunder  preclude any other
rights or power.  The  rights and  remedies  of Lender as herein  specified  are
cumulative  and not  exclusive  of any other  rights or  remedies  of Lender may
otherwise have.

     No Modification,  rescission, waiver, release or amendment of any provision
of this  Note  shall be made  expect by  written  agreement  subscribed  by duly
authorized officers of the Company and the lender.

     Reference is hereby made to the  Agreement for  provisions  with respect to
prepayment, collateral and rights of acceleration of the principal hereof on the
occurrence of certain events.

     Borrower  agrees to pay all reasonable  costs and expenses  incurred by the
holder  in  enforcing  this Note or in  collecting  the  indebtedness  evidenced
hereby,  including,  without  limitation,  if the holder retains counsel for any
such purpose, reasonable attorney' fees and expenses.

     Borrower hereby waives diligence, presentment, protest and demand, and also
notice of protest, demand, dishonor and nonpayment of this Note.

     This Note shall be construed under and governed by the internal laws of the
State of New York in effect from time to time without  regard to  principles  of
conflicts of laws.

     The obligations of the undersigned under this Note are joint and several.

     This Note amends and  restates a  Promissory  Note  executed by Borrower on
April 1, 1994, and as previously amended and restated on November 17, 1994.


                                              DELTA COMUTEC INC.

                                              By:________________________
                                                       John DeVito, President


                                              DELTA DATA NET, INC.

                                              By:_________________________
                                                       John DeVito, President

                                      -2-
                                                             Page 4 of 207 Pages



<PAGE>
       THIS DOCUMENT IS A COPY OF THE EXHIBIT FILED ON OCTOBER 24, 1996
             PURSUANT TO A RULE 201 TEMPORARY HARDSHIP EXEMPTION.

                               AMENDMENT NO. 1 TO
                              FORBEARANCE AGREEMENT
                              ---------------------

     THIS AMENDMENT NO. 1 TO FORBEARANCE  AGREEMENT  ("Amendment  No.1") is made
and entered into as of May__, 1996, by and between Delta Computec,  Inc. ("DCI")
and Delta Data Net, Inc. ("DDI"),  (collectively,  the "Borrowers") and National
Canada Finance Corp. ("Lender").

                              W I T N E S S E T H:

     WHEREAS,  Lender  and  Borrowers  entered  into  that  certain  Forbearance
Agreement dated March 8, 1996 ( the " Forbearance  Agreement"),  a copy of which
is attached  hereto as Exhibit  "A", in which the Lender  agreed to forbear from
exercising  certain  rights  and  remedies  under its Loan  Documents  and under
applicable law against the Borrowers and their properties, provided that certain
conditions were met as more fully provided in the Forbearance Agreement; and

     WHEREAS,  all  capitalized  terms  used  in  this  Amendment  No.1,  unless
otherwise  defined,  shall  have  the  meaning  ascribed  to such  terms  in the
Forbearance Agreement and the Loan Agreements; and

     WHEREAS, the Lender has agreed to extend the term of the Forbearance Period
as more fully set forth in the  Forbearance  Agreement  from May 8, 1996 to June
14, 1996 provided that the Borrowers comply with all terms and conditions of the
Forbearance Agreement and this Amendment No.1; and

     WHEREAS,  on March 8, 1996,  DDI  terminated  its business  operations  and
closed its business facility located at 900 Huyler Street, Teterboro, New Jersey
07608,  which action  constituted an Event of Default under the Loan Agreements;
and

     WHEREAS,  DDI  peaceably  turned over to Lender on March 11, 1996,  the DDI
Collateral, except the DDI accounts receivable; which DDI Collateral was sold at
public  auction sale  pursuant to the Uniform  Commercial  Code on April 9, 1996
(the "Public Auction Sale"); and

     WHEREAS,  DCI and DDI remain jointly and severally liable to Lender for any
deficiency following the Public Auction Sale of the DDI Collateral in accordance
with the Loan Documents and applicable law; and

     WHEREAS,  all Loans made by Lender to Borrowers,  and all other liabilities
and obligations at any time or time owing by Borrowers to Lender, continue to be
secured  by  security  interests  granted  by  Borrowers  to  Lender  in  all of
Borrowers' then existing and thereafter acquired accounts, inventory, equipment,
general intangibles,  chattel paper, contract rights,  instruments and balances,
as more full set forth in the Loan Agreements; and

                                                             Page 5 of 207 Pages
<PAGE>



     WHEREAS,  the  Guarantor  by  separate  Guaranty  Agreement,  continues  to
unconditionally  guarantee payment to Lender of certain  liabilities at any time
owing by Borrowers to Lender under the Loan  Agreements,  or otherwise,  as more
fully set forth in the Guaranty Agreement; and

     WHEREAS, there exists continuing defaults under the Loan Agreements; and

     WHEREAS,  Borrowers desire that Lender continue to forebear from exercising
certain remedies available to Lender under the Loan Agreements,  the Forbearance
Agreement and applicable law;

     WHEREAS,  Borrowers and the Guarantor desire that Lender  continue,  during
the Forbearance Period to make Loans to DCI pursuant to the Loan Agreements,  as
modified hereby;

     WHEREAS,  Lender is willing to continue to forbear,  in accordance with the
terms of the  Forbearance  Agreement and the  Amendment  No. 1, from  exercising
remedies  available to it as a result of the continuing  defaults under the Loan
Agreements,  and to continue  making Loans  consistent with this Amendment No. 1
and the Forbearance  Agreement,  but only on the terms and conditions  contained
herein;

     NOW,  THEREFORE FOR TEN DOLLARS  ($10.00) in hand paid and in consideration
of the premises and the mutual covenants herein  contained,  the parties hereto,
intending to be legally bound hereby, agree as follows:

     1. Definitions:

          "Forbearance  Period"  shall  mean the period  commencing  on the date
     hereof  and  ending at the close of  business  on May 22,  1996,  provided,
     however, that the foregoing date may be extended to a later date by written
     agreement of the Lender, in its sole and absolute discretion.

     2.   Acknowledgments   and   Stipulations   by  Borrowers.   The  Borrowers
acknowledge, stipulate and agree that:

     (a) as of the  opening of  business  on May 9, 1996,  the  Indebtedness  is
$486,775.83,  exclusive of interest,  costs and  attorneys'  fees  chargeable to
Borrowers under the Loan Agreements;

     (b) all of the  Indebtedness  is  absolutely  due and owing by Borrowers to
Lender without any defense, deduction, offset or counterclaim;

     (c) the following  Events of Default have occurred and are continuing under
the Loan Agreements;

                                        2
                                                             Page 6 of 207 Pages
<PAGE>


          (i) The cessation of the business operations by DDI;


          (ii)  Borrowers  are not in compliance  with the  following  financial
     covenants  contained  in the Credit  Agreement  as follows:  Section  6.17-
     Tangible Net Worth; Section 6.18 -Debt-to-Tangible Net Worth; Section 6.19-
     Working  Capital  Ratio;   Section  6.20  -  Pre-Tax  Income;  and  Section
     6.21-Interest Coverage Ratio.

     (d) the Lender does not waive as to Borrowers  any unknown or  unenumerated
Event of Default which exists under the Loan Agreements;

     (e) each of the Loan Agreements and the Forbearance  Agreement  executed by
Borrowers are legal,  valid and binding  obligations  of Borrowers,  enforceable
against Borrowers in accordance with their respective terms;

     (f) the security  interest granted by Borrowers to Lender in the Collateral
is a duly perfected, first priority security interest; and

     (g) Lender shall be permitted in its sole and absolute  discretion to apply
the proceeds from the DDI Collateral to the Indebtedness.

     3. Agreement to Forebear.  Provided that no Termination Event has occurred,
Lender agrees that during the  Forbearance  Period it will not, solely by reason
of the  existence on this date of the Events of Default  referenced in Section 2
of this Amendment No. 1, exercise any default  remedy  available to Lender under
the Loan Agreements to enforce collection from DCI of any of the Indebtedness or
to  foreclose  its  security  interest  in  any  of the  Collateral  during  the
Forbearance  Period except with regards to the Collateral  owned by DDI. Neither
this Amendment No.1 nor Lender's  forbearance  hereunder shall be deemed to be a
waiver of or a consent to the Events of Default  referenced in Section 2 of this
Amendment No. 1.

     4. Termination of Forbearance. If any one or more of the Termination Events
occur, Lender's agreement to forbear as set forth in Section 3 of this Amendment
No.1  shall,  at  Lender's  election,  upon  written  notice to or  demand  upon
Borrowers  (it being  agreed by the parties that such notice may be delivered by
facsimile  with a copy  to  Borrowers'  counsel),  terminate  and  Lender  shall
thereupon have and may exercise from time to time all of the remedies  available
to it under the Loan  Agreements and applicable law as a consequence of an Event
of Default, without further notice, demand or presentment.

     5. Loans. During the Forbearance Period, Borrowers may request, and Lender,
in its sole and  absolute  discretion,  may  make  Loans to DCI in an  aggregate
amount  (when  added to all then  outstanding  Loans,  whether  made prior to or
during the  Forbearance  Period)  not to exceed the  Maximum  Loan  Amount.  The
Maximum Loan Amount shall mean the lesser of:

                                        3
                                                             Page 7 of 207 Pages
<PAGE>


     (a)  (1) Eighty Percent (80%) of DCI's eligible receivables;
          (2) Eighty Percent (80%) of DDI's eligible receivables; and
          (3) $300,000; less

          (4) Outstanding Letter of Credit Obligations; or

     (b)  Three  Million  Two  Hundred  Fifty  Thousand  Dollars   ($3,250,000),
          including  Letter of Credit  Obligations,  in the aggregate at any one
          time outstanding.

Notwithstanding the foregoing provision and any other provision contained in the
Loan Agreements or any course of dealing or conduct between Lender and Borrowers
prior to the date hereof,  Lender shall have no obligation to make further Loans
to DCI;  Lender may make, or refuse to make,  Loans to DCI, in its discretion in
each  instance;  and  Lender  reserves  the right to make Loans in excess of the
Maximum Loan Amount.

     All Loans made during the  Forbearance  Period  shall be payable on demand,
and shall be entitled to all  benefits and  protections  and secured in the same
manner and to the same extent as Loans made prior to the date hereof.  All Loans
made during the  Forbearance  Period shall bear interest as provided in the Loan
Agreements.

     6. No Further  Commitments by Lender.  Borrowers  further  acknowledge  and
agree that the Lender has no existing commitments,  obligations or agreements to
make  Loans or to make other  loans,  to issue  letters of credit,  or to extend
other financial accommodations to Borrowers, except the parties have agreed that
during the  Forbearance  Period they will negotiate in good faith to restructure
the debt of DCI to the Lender.

     7. Reaffirmation of Loan Agreements.  The Borrowers reaffirm and agree that
all of the Loan  Agreements are fully  enforceable  and in full force and effect
and have not been waived or modified in any manner except as expressly set forth
in this  Amendment  No. 1, and that the Loan  Agreements,  as  modified  by this
Amendment No. 1, are fully  enforceable and in full force and effect on the date
of this Amendment No. 1.

     8.  Application  of Payments and  Collections.  Borrowers  hereby waive the
right,  if any, to direct the manner in which  Lender  applies  any  payments or
collections to the Indebtedness and agrees that Lender may apply and reapply all
such payments to the Indebtedness as Lender in its sole and absolute  discretion
elects from time to time.

     9.  Representations  and Warranties of Borrowers.  Borrowers  represent and
warrant that (a) no Event of Default  exists under the Loan  Agreements,  except
for Events of Default  identified in Section 2 of this  Amendment No. 1 that are
in existence on the date hereof;  (b) subject to the  existence of the Events of
Default specified in Section 2 of this Amendment No. 1, the  representations and
warranties of Borrowers  contained in the Loan  Agreements were true and correct


                                       4
                                                             Page 8 of 207 Pages
<PAGE>


in all material  respects on the date hereof;  (c) the  execution,  delivery and
performance  by Borrowers of this  Amendment No. 1 and the  consummation  of the

transactions contemplated hereby are within the power of Borrowers and have been
duly authorized by all necessary  corporate action on the part of the Borrowers,
do not require any approval or consent,  or filing with, any governmental agency
or authority or any person,  do not violate any  provisions  of any law, rule or
regulation or any provision of any order, writ,  judgment,  injunction,  decree,
determination  or award  presently in effect in which Borrowers are named or any
provision of the charter documents of Borrowers and do not result in a breach of
or constitute a default under any agreement or instrument to which Borrowers are
a party  or by  which  they or any of  their  properties  are  bound;  (d)  this
Amendment  No.  1  constitutes  the  legal,  valid  and  binding  obligation  of
Borrowers,  enforceable  against Borrowers in accordance with its terms; (e) the
Borrowers are entering into this Amendment No. 1 freely and voluntarily with the
advice of legal counsel of their own choosing; (f) the Borrowers have freely and
voluntarily  agreed to the releases,  waivers and undertakings set forth in this
Amendment  No.  1; (g) the  Public  Auction  Sale and all  efforts  taken by the
Lender, its agents,  employees and attorneys to notice, conduct and conclude the
Public  Auction  Sale were  proper by the  Lender,  its  agents,  employees  and
attorneys and were performed in a commercially reasonable manner as provided for
in the Uniform Commercial Code and the Borrowers freely and voluntarily  release
and waive any claims against the Lender, its agents, employees and attorneys for
any actions or  undertakings in connection with the Public Auction Sale; and (h)
irrespective  of the fact that the financial  projections  dated April 12, 1996,
for the two (2) years  ending  October  31,  1997,  prepared  by the  Borrowers,
indicate  loans in  excess  of the  Maximum  Loan  Amount  are  required  by the
Borrowers,  Borrowers  acknowledge  that the  Maximum  Loan  Amount  will not be
exceeded.

     10.  Covenants of the  Borrowers.  In addition to each of the covenants set
forth in the Loan Agreements, the Borrowers have, or will:

     (a) duly and  punctually  observe,  perform  and  discharge  each and every
obligation and covenant on their parts to be performed  under this Amendment No.
1;

     (b) deliver to the Lender,  each of which shall be satisfactory in form and
substance to Lender:

          (i)   Release and Indemnification Agreement by the Borrowers;

          (ii)  A signed  consent  from  Joseph M.  Lobozzo,  II agreeing to and
                acknowledging  to the delivery and  execution of Amendment No. 1
                and a Reaffirmation of Subordination;

          (iii) A signed Reaffirmation of Guaranty by SAI/Delta, Inc.

          (iv)  Certified copies (certified by authorized officers of Borrowers)
                of a corporate  resolution  taken by Borrowers to authorize  the
                execution, delivery and performance of this Amendment No. 1;

                                       5
                                                             Page 9 of 207 Pages
<PAGE>



          (v)   Certificates of incumbency and specimen  signatures with respect
                to each of the  officers  of  Borrowers  who are  authorized  to
                execute  and  deliver  this   Amendment   No.  1  and  the  Loan
                Agreements;

          (vi)  Certified  Financial  Statement  for each  Borrower  prepared in
                accordance with Generally Accepted Accounting Principals for the
                fiscal year ending  October 31, 1995 which shall be delivered to
                lender by June 3, 1996;

          (vii) An  internally  prepared  Balance  Sheet,  Income  Statement and
                Statement  of Cash  Flows for each  Borrower  for the four month
                period  ending  February  28, 1996 which shall be  delivered  to
                Lender by May 17, 1996;

          (viii)A  Compilation  and Cash Flow  Statements  for each Borrower for
                the five month  period  ending  March 31,  1996  which  shall be
                delivered to Lender by May 17, 1996;

     (c) have executed and delivered this Amendment No. 1;

     (d) Borrowers shall from 3/11/96,  collect at least Eighty Percent (80%) of
the  projected  accounts  receivable  as set forth on page DDN-6 of the  annexed
Exhibit "B", all as set forth on page DDN-6,  identified  in each  instance as a
page from the Delta Data Net, Inc. Financial Projections for the two years ended
October 31, 1997.

     (e)  Borrowers  shall have paid all fees and  expenses of Lender's  counsel
incurred in the preparation, negotiation, execution, delivery and administration
of this Amendment No. 1.

     (f) Borrowers  shall have paid to Lender a fee of $3,250.00  upon execution
of this Amendment No.1.

     11. Termination.  In the event the Lender shall terminate the Amendment No.
1, DCI  agrees  that , at the option of Lender,  it shall  commence a  voluntary
liquidation of its entire business.  This provision is in addition to any of the
other rights and remedies available to the Lender under the Loan Agreements.

     12.  Bankruptcy.  In the event either of the Borrowers files for bankruptcy
relief under 11 U.S.C.  Section 101 et seq. or an involuntary  petition is filed
against either of the Borrowers,  then in such event,  Borrowers agree that they
will consent to granting  Lender  relief from the  automatic  stay  provided for
under 11 U.S.C. Section 362 and Borrowers shall not seek to restrain,  enjoin or
otherwise  interfere with Lender's rights  pursuant to 11 U.S.C.  Section 105 or
any other  Federal  or State  statute.  Borrowers  will  consent to any Order or
execute any  document  necessary  for Lender to obtain the relief  provided  for
herein.
                                       6
                                                            Page 10 of 207 Pages
<PAGE>

     13. Relationship of Parties; No Third Party Beneficiaries.  Nothing in this
Amendment  No. 1 shall be  construed  to alter  the  existing  borrower-creditor

relationship  between Borrowers and Lender. Nor is this Amendment No. 1 intended
to change or affect in any way the  relationship.  This  Amendment  No. 1 is not
intended,  nor shall it be construed to create,  a partnership  or joint venture
relationship  between or among any of the  parties  hereto.  No person or entity
other than a party hereto is intended to be a  beneficiary  hereof and no person
or  entity  other  than a party  hereto  shall be  authorized  to rely  upon the
contents of this Amendment No. 1.

     14. Entire Agreement;  Modification of Agreement. This Amendment No. 1, the
Forbearance  Agreement  and the other  Loan  Agreements  constitute  the  entire
understanding  of the  parties  with  respect to the subject  matter  hereof and
thereof. This Amendment No. 1 may not be modified,  altered or amended except by
agreement in writing signed by all the parties hereto.

     15.  Governing Law. This Amendment No. 1 shall be governed by and construed
in accordance with the law of the State of New York.

     16.  Non-Waiver  of  Default.  Neither  this  Amendment  No.  1 ,  Lender's
forbearance  hereunder  nor  Lender's  continued  making  of  Loans  to  DCI  in
accordance  with this  Amendment No. 1 shall be deemed a waiver of or consent to
the Events of Default referenced in Section 2 of this Amendment No. 1. Borrowers
agree  that such  Events  of  Default  shall not be deemed to have been  waived,
released  or cured by  virtue  of such  Loans,  Lender's  agreement  to  forbear
pursuant to the terms of this Amendment No. 1 or the execution of this Amendment
No. 1.

     17. No Novation.  This  Amendment No. 1 is not intended to be, nor shall it
be construed to create,  a novation or accord and  satisfaction,  and, except as
otherwise  expressly  stated herein,  the Loan  Agreements  (including,  without
limitation,  Borrowers'  obligation  under the  Lockbox  Agreement  by and among
Borrowers and Lender) shall remain in full force and effect. Notwithstanding any
prior  mutual  temporary  disregard  of  any  of the  terms  of any of the  Loan
Agreements,  the  parties  agree  that the terms of each of the Loan  Agreements
shall be strictly  adhered to on and after the date hereof,  except as expressly
modified by this Amendment No. 1.

     18.  Miscellaneous.  This  Amendment No. 1 may be executed in any number of
counterparts and by different parties hereto in separate  counterparts,  each of
which when so executed  shall  constitute  an  original,  but all of which taken
together shall be one and the same  instrument.  In enforcing this Amendment No.
1, it shall  not be  necessary  to  produce  or  account  for more than one such
counterpart  signed by the party against whom  enforcement is sought.  Notice of
Lender's acceptance hereof is hereby waived.

     19. Release of Claims. TO INDUCE LENDER TO ENTER INTO THIS AMENDMENT NO. 1,
BORROWERS  HEREBY RELEASE,  ACQUIT AND FOREVER  DISCHARGE  LENDER,  AND LENDER'S
OFFICERS, DIRECTORS, PROFESSIONALS,  AUCTIONEERS, APPRAISERS, ATTORNEYS, AGENTS,
EMPLOYEES,  SUCCESSORS  AND  ASSIGNS,  FROM ALL  LIABILITIES,  CLAIMS,  DEMANDS,
ACTIONS OR CAUSES 

                                       7
                                                            Page 11 of 207 Pages
<PAGE>


OF ACTIONS OF ANY KIND (IF ANY THERE BE), WHETHER ABSOLUTE OR CONTINGENT, DUE OR
TO BECOME DUE, DISPUTED OR UNDISPUTED,  AT LAW OR IN EQUITY,  THAT THE BORROWERS
NOW HAVE OR EVER HAD AGAINST  LENDER RISING UNDER OR IN  CONNECTION  WITH ANY OF
THE LOAN  AGREEMENTS,  THE  FORBEARANCE  AGREEMENT,  THE PUBLIC  AUCTION SALE OR
OTHERWISE.

     20. Severability. Wherever possible, each provision of this Amendment No. 1
is to  be  interpreted  in  such  manner  as to be  effective  and  valid  under
applicable law, but if any provision of this Amendment No. 1 is to be prohibited
by or invalid under  applicable law, such provision is to be ineffective only to
the extent of such prohibition or invalidity, without invalidating the remainder
of such provision or the remaining provisions of this Amendment No. 1.

     21. Loan  Agreements.  This Amendment No. 1 shall be entitled to all of the
benefits of the Loan Agreements.

     22. Further  Representations.  The Borrowers  hereby  represent and warrant
that after the date hereof they will have the same principal  place of business,
DCI will  continue to do business in the same  location as it was doing prior to
the date hereof and will continue to use the names Delta Computec Inc. and Delta
Data Net,  Inc.,  unless it gives Lender prior written notice of any such change
in the manner provided for under the Loan Agreements.

     23. The Borrowers hereby acknowledge that all notices, requests and demands
in  accordance  with  the Loan  Agreements  and  this  Amendment  No. 1 shall be
addressed to:

                           E. Lynn Forgosh, Group V.P.
                          National Canada Finance Corp.
                              125 West 55th Street
                          New York, New York 10019-5366

                              -- with a copy to --

                           Walter J. Greenhalgh, Esq.
                           Robinson, St. John & Wayne
                               Two Penn Plaza East
                          Newark, New Jersey 07105-2249



Lenders  hereby  acknowledge  that all  notices,  requests  and  demands in
accordance  with the Loan  Documents  and this  Amendment No. 3  shall be
addressed to:

                                       8
                                                            Page 12 of 207 Pages
<PAGE>

                                   President
                              Delta Computec, Inc.
                               900 Huyler Stteet
                          teterboro, New Jersey 07608
                          Telecopy No. (201) 440-3985


                                       or

                                   President
                              Delta Data Net, Inc.
                                900 Huyler Stret
                          Teterboro, New Jersey 07608
                          Telecopy No. (201) 440-3985


                               - with a copy to -

                             Edwin M. Larkin, Esq.
                           Jacckle, Fleishman & Mugel
                           39 State Street, Suite 460
                         Rochester, New York 14614-1310
                          Telepcopy No. (716) 262-4133

IN WITNESS  WHEREOF,  the parties  hereto have caused this Amendment No. 3 to be
duly executed and delivered on the date first written above.

                                                 BORROWERS:

                                                 DELTA COMPUTEC INC.

ATTEST:                                          By: /s/ John DeVito
                                                    ----------------------------
                                                 Name: John DeVito
                                                      --------------------------
                                                 Title: President/COO
                                                       -------------------------
By:_______________________
[CORPORATE SEAL]

                                                 DELTA DATA NET, INC.

ATTEST:                                          By: /s/ John DeVito
                                                    ----------------------------
                                                 Name: John DeVito
                                                      --------------------------
                                                 Title: President/COO
                                                       -------------------------
By:_____________________
[CORPORATE SEAL]

                       (SIGNATURES CONTINUED ON NEXT PAGE)

                                       9
                                                            Page 13 of 207 Pages
<PAGE>


                                                 LENDER:


                                                 NATIONAL CANADA FINANCE CORP.

                                                 By:
                                                    ----------------------------
                                                     E. Lynn Forgosh, Group V.P.

 ATTEST:

By:_________________________
[CORPORATE SEAL]

                                       10
                                                            Page 14 of 207 Pages


<PAGE>
       THIS DOCUMENT IS A COPY OF THE EXHIBIT FILED ON OCTOBER 24, 1996
             PURSUANT TO A RULE 201 TEMPORARY HARDSHIP EXEMPTION.

                               AMENDMENT NO. 2 TO
                              FORBEARANCE AGREEMENT
                              ---------------------

     THIS AMENDMENT NO. 2 TO FORBEARANCE  AGREEMENT  ("Amendment No. 2") is made
and entered into as of May 23, 1996, by and between Delta Computec, Inc. ("DCI")
and Delta Data Net, Inc. ("DDI"),  (collectively,  the "Borrowers") and National
Canada Finance Corp. ("Lender").

                              W I T N E S S E T H:

     WHEREAS,  Lender  and  Borrowers  entered  into  that  certain  Forbearance
Agreement dated March 8, 1996 ( the " Forbearance  Agreement"),  a copy of which
is attached  hereto as Exhibit  "A", in which the Lender  agreed to forbear from
exercising  certain  rights  and  remedies  under its Loan  Documents  and under
applicable law against the Borrowers and their properties, provided that certain
conditions were met as more fully provided in the Forbearance Agreement; and

     WHEREAS,  Lender and Borrowers  entered into  Amendment No.1 to Forbearance
Agreement  dated May 9, 1996 ("  Amendment  No.1"),  a copy of which is attached
hereto as Exhibit  "B", in which the Lender  agreed to forbear  from  exercising
certain rights and remedies  under its Loan  Documents and under  applicable law
against  the  Borrowers  and  their  properties  and to  extend  the term of the
Forbearance Period as more fully set forth in the Forbearance Agreement from May
8, 1996 to May 22, 1996, provided that certain conditions were met as more fully
provided in the Amendment No.1; and

     WHEREAS, the Lender has agreed to extend the term of the Forbearance Period
as more fully set forth in the  Forbearance  Agreement from May 23, 1996 to June
14, 1996 provided that the Borrowers comply with all terms and conditions of the
Forbearance Agreement, Amendment No. 1 and this Amendment No. 2; and

     WHEREAS,  on March 8, 1996,  DDI  terminated  its business  operations  and
closed its business facility located at 900 Huyler Street, Teterboro, New Jersey
07608,  which action  constituted an Event of Default under the Loan Agreements;
and

     WHEREAS,  DDI  peaceably  turned over to Lender on March 11, 1996,  the DDI
Collateral, except the DDI accounts receivable; which DDI Collateral was sold at
public  auction sale  pursuant to the Uniform  Commercial  Code on April 9, 1996
(the "Public Auction Sale"); and

     WHEREAS,  DCI and DDI remain jointly and severally liable to Lender for any
deficiency following the Public Auction Sale of the DDI Collateral in accordance
with the Loan Documents and applicable law; and

     WHEREAS,  all Loans made by Lender to Borrowers,  and all other liabilities
and obligations at any time or time owing by Borrowers to Lender, continue to be
secured  by  security  interests  


                                                            Page 15 of 207 Pages
<PAGE>


granted by Borrowers to Lender in all of Borrowers' then existing and thereafter
acquired accounts,  inventory,  equipment,  general intangibles,  chattel paper,
contract  rights,  instruments and balances,  as more full set forth in the Loan
Agreements; and

     WHEREAS,  the  Guarantor  by  separate  Guaranty  Agreement,  continues  to
unconditionally  guarantee payment to Lender of certain  liabilities at any time
owing by Borrowers to Lender under the Loan  Agreements,  or otherwise,  as more
fully set forth in the Guaranty Agreement; and

     WHEREAS, there exists continuing defaults under the Loan Agreements; and

     WHEREAS,  Borrowers desire that Lender continue to forebear from exercising
certain remedies available to Lender under the Loan Agreements,  the Forbearance
Agreement and applicable law;

     WHEREAS,  Borrowers and the Guarantor desire that Lender  continue,  during
the Forbearance Period to make Loans to DCI pursuant to the Loan Agreements,  as
modified hereby;

     WHEREAS,  Lender is willing to continue to forbear,  in accordance with the
terms of the  Forbearance  Agreement,  Amendment No. 1 and this Amendment No. 2,
from exercising  remedies available to it as a result of the continuing defaults
under the Loan  Agreements,  and to continue  making Loans  consistent with this
Amendment No. 2, Amendment No. 1 and the Forbearance Agreement,  but only on the
terms and conditions contained herein;

     WHEREAS,  all  capitalized  terms  used in this  Amendment  No.  2,  unless
otherwise  defined,  shall  have  the  meaning  ascribed  to such  terms  in the
Forbearance Agreement and the Loan Agreements; and

     NOW,  THEREFORE FOR TEN DOLLARS  ($10.00) in hand paid and in consideration
of the premises and the mutual covenants herein  contained,  the parties hereto,
intending to be legally bound hereby, agree as follows:

     1. Definitions:

          "Forbearance  Period"  shall  mean the period  commencing  on the date
     hereof  and ending at the close of  business  on June 14,  1996,  provided,
     however, that the foregoing date may be extended to a later date by written
     agreement of the Lender, in its sole and absolute discretion.

     2.   Acknowledgments   and   Stipulations   by  Borrowers.   The  Borrowers
acknowledge, stipulate and agree that:

     (a) as of the opening of business on May 23, 1996,  the  Indebtedness  is $
2,503,065.22,  exclusive of interest,  costs and attorneys'  fees  chargeable to
Borrowers under the Loan Agreements;

                                       2

                                                            Page 16 of 207 Pages
<PAGE>


     (b) all of the  Indebtedness  is  absolutely  due and owing by Borrowers to
Lender without any defense, deduction, offset or counterclaim;

     (c) the following  Events of Default have occurred and are continuing under
the Loan Agreements;

          (i) The cessation of the business operations by DDI;

          (ii)  Borrowers  are not in compliance  with the  following  financial
     covenants  contained  in the Credit  Agreement  as follows:  Section  6.17-
     Tangible Net Worth; Section 6.18 -Debt-to-Tangible Net Worth; Section 6.19-
     Working  Capital  Ratio;   Section  6.20  -  Pre-Tax  Income;  and  Section
     6.21-Interest Coverage Ratio.

     (d) the Lender does not waive as to Borrowers  any unknown or  unenumerated
Event of Default which exists under the Loan Agreements;

     (e) each of the Loan  Agreements,  the Forbearance  Agreement and Amendment
No.1  executed  by  Borrowers  are  legal,  valid  and  binding  obligations  of
Borrowers,  enforceable  against  Borrowers in accordance with their  respective
terms;

     (f) the security  interest granted by Borrowers to Lender in the Collateral
is a duly perfected, first priority security interest; and

     (g) Lender shall be permitted in its sole and absolute  discretion to apply
the proceeds from the DDI Collateral to the Indebtedness.

     3. Agreement to Forebear.  Provided that no Termination Event has occurred,
Lender agrees that during the  Forbearance  Period it will not, solely by reason
of the  existence on this date of the Events of Default  referenced in Section 2
of this Amendment No. 2, exercise any default  remedy  available to Lender under
the Loan Agreements to enforce collection from DCI of any of the Indebtedness or
to  foreclose  its  security  interest  in  any  of the  Collateral  during  the
Forbearance  Period except with regards to the Collateral  owned by DDI. Neither
this Amendment No. 2 nor Lender's forbearance  hereunder shall be deemed to be a
waiver of or a consent to the Events of Default  referenced in Section 2 of this
Amendment No. 2.

     4. Termination of Forbearance. If any one or more of the Termination Events
occur, Lender's agreement to forbear as set forth in Section 3 of this Amendment
No. 2 shall,  at  Lender's  election,  upon  written  notice to or  demand  upon
Borrowers  (it being  agreed by the parties that such notice may be delivered by
facsimile  with a copy  to  Borrowers'  counsel),  terminate  and  Lender  shall
thereupon have and may exercise from time to time all of the remedies  available
to it under the Loan  Agreements and applicable law as a consequence of an Event
of Default, without further notice, demand or presentment.

                                       3
                                                            Page 17 of 207 Pages

<PAGE>


     5. Loans. During the Forbearance Period, Borrowers may request, and Lender,
in its sole and  absolute  discretion,  may  make  Loans to DCI in an  aggregate
amount  (when  added to all then  outstanding  Loans,  whether  made prior to or
during the  Forbearance  Period)  not to exceed the  Maximum  Loan  Amount.  The
Maximum Loan Amount shall mean the lesser of:

          (a)  (1)  Eighty  Percent  (80%)  of  DCI's  Eligible  Receivables  on
                    service contracts that are based on a billing schedule of no
                    greater than ninety (90) days;

               (2)  Eighty  Percent  (80%)  of  DCI's  Eligible  Receivables  on
                    service  contracts  which do not exceed $25,000 and that are
                    based on a billing schedule of in excess of ninety (90) days
                    but no greater than one year;
                  
               (3)  Eighty  Percent  (80%)  of  DDI's  Eligible  Receivables  on
                    service contracts that are based on a billing schedule of no
                    greater than ninety (90) days;
                  
               (4)  Eighty  Percent  (80%)  of  DDI's  Eligible  Receivables  on
                    service  contracts  which do not exceed $25,000 and that are
                    based on a billing schedule of in excess of ninety (90) days
                    but no greater than one year;
                  
               (5)  Fifty Percent (50%) of DCI's Eligible Receivables on service
                    contracts  which  exceed  $25,000  and that  are  based on a
                    billing  schedule  of in excess  of ninety  (90) days but no
                    greater than one hundred eighty (180) days;
                  
               (6)  Twenty-five  Percent (25%) of DCI's Eligible  Receivables on
                    service contracts which exceed $25,000 and that are based on
                    a billing  schedule of in excess of one hundred eighty (180)
                    days but no greater than one year; and

               (7)  $300,000; less

               (8)  Outstanding Letter of Credit Obligations; or

     (b)  Three  Million  Two  Hundred  Fifty  Thousand  Dollars   ($3,250,000),
          including  Letter of Credit  Obligations,  in the aggregate at any one
          time outstanding.

Notwithstanding the foregoing provision and any other provision contained in the
Loan Agreements or any course of dealing or conduct between Lender and Borrowers
prior to the date hereof,  Lender shall have no obligation to make further Loans
to DCI;  Lender may make, or refuse to make,  Loans to DCI, in its discretion in
each  instance;  and  Lender  reserves  the right to make Loans in excess of the
Maximum  Loan  Amount.  The  parties  acknowledge  that the only  change made by
Paragraph  5(a) from  Amendment  No. 1 to this  Amendment  No. 2 is the  percent
advanced by Lender to DCI on Eligible Receivables.


     All Loans made during the  Forbearance  Period  shall be payable on demand,
and shall be entitled to all  benefits and  protections  and secured in the same
manner and to the same extent as Loans made prior to the date hereof.  All Loans
made during the  Forbearance  Period shall bear interest as provided in the Loan
Agreements.

     All payments of Receivables must be credited through a lock box arrangement
through Lender's offices which shall be held by Lender as collateral for payment
and/or performance of Borrowers' Obligations to Lender.

                                       4
                                                            Page 18 of 207 Pages
<PAGE>

     6. No Further  Commitments by Lender.  Borrowers  further  acknowledge  and
agree that the Lender has no existing commitments,  obligations or agreements to
make  Loans or to make other  loans,  to issue  letters of credit,  or to extend
other financial accommodations to Borrowers, except the parties have agreed that
during the  Forbearance  Period they will negotiate in good faith to restructure
the debt of DCI to the Lender.

     7. Reaffirmation of Loan Agreements.  The Borrowers reaffirm and agree that
all of the Loan  Agreements are fully  enforceable  and in full force and effect
and have not been waived or modified in any manner except as expressly set forth
in the  Forbearance  Agreement,  Amendment No. 1, this Amendment No. 2, and that
the Loan Agreements,  as modified by this Amendment No. 2, are fully enforceable
and in full force and effect on the date of this Amendment No. 2.

     8.  Application  of Payments and  Collections.  Borrowers  hereby waive the
right,  if any, to direct the manner in which  Lender  applies  any  payments or
collections to the Indebtedness and agrees that Lender may apply and reapply all
such payments to the Indebtedness as Lender in its sole and absolute  discretion
elects from time to time.

     9.  Representations  and Warranties of Borrowers.  Borrowers  represent and
warrant that (a) no Event of Default  exists under the Loan  Agreements,  except
for Events of Default  identified in Section 2 of this  Amendment No. 2 that are
in existence on the date hereof;  (b) subject to the  existence of the Events of
Default specified in Section 2 of this Amendment No. 2, the  representations and
warranties of Borrowers  contained in the Loan  Agreements were true and correct
in all material  respects on the date hereof;  (c) the  execution,  delivery and
performance  by Borrowers of this  Amendment No. 2 and the  consummation  of the
transactions contemplated hereby are within the power of Borrowers and have been
duly authorized by all necessary  corporate action on the part of the Borrowers,
do not require any approval or consent,  or filing with, any governmental agency
or authority or any person,  do not violate any  provisions  of any law, rule or
regulation or any provision of any order, writ,  judgment,  injunction,  decree,
determination  or award  presently in effect in which Borrowers are named or any
provision of the charter documents of Borrowers and do not result in a breach of
or constitute a default under any agreement or instrument to which Borrowers are
a party  or by  which  they or any of  their  properties  are  bound;  (d)  this
Amendment  No.  2  constitutes  the  legal,  valid  and  binding  obligation  of
Borrowers,  enforceable  against Borrowers in accordance with its terms; (e) the
Borrowers are entering into this Amendment No. 2 freely and voluntarily with the

advice of legal counsel of their own choosing; (f) the Borrowers have freely and
voluntarily  agreed to the releases,  waivers and undertakings set forth in this
Amendment  No.  2; (g) the  Public  Auction  Sale and all  efforts  taken by the
Lender, its agents,  employees and attorneys to notice, conduct and conclude the
Public  Auction  Sale were  proper by the  Lender,  its  agents,  employees  and
attorneys and were performed in a commercially reasonable manner as provided for
in the Uniform Commercial Code and the Borrowers freely and voluntarily  release
and waive any claims against the Lender, its agents, employees and attorneys for
any actions or  undertakings in connection with the Public Auction Sale; and (h)
irrespective  of the fact that the financial  projections  dated April 12, 1996,
for the two (2) years ending October 31, 1997, prepared by the

                                       5
                                                            Page 19 of 207 Pages
<PAGE>


Borrowers,  indicate  loans in excess of the Maximum Loan Amount are required by
the Borrowers,  Borrowers  acknowledge  that the Maximum Loan Amount will not be
exceeded.

     10.  Covenants of the  Borrowers.  In addition to each of the covenants set
forth in the Loan Agreements, the Borrowers have, or will:

     (a) duly and  punctually  observe,  perform  and  discharge  each and every
obligation and covenant on their parts to be performed  under this Amendment No.
2;

     (b) deliver to the Lender,  each of which shall be satisfactory in form and
substance to Lender:

          (i)    Release and Indemnification Agreement by the Borrowers;

          (ii)   A signed  consent  from Joseph M.  Lobozzo,  II agreeing to and
                 acknowledging  to the delivery and execution of Amendment No. 2
                 and a Reaffirmation of Subordination;

          (iii)  A signed Reaffirmation of Guaranty by SAI/Delta, Inc.

          (iv)   Certified   copies   (certified  by   authorized   officers  of
                 Borrowers)  of a corporate  resolution  taken by  Borrowers  to
                 authorize  the  execution,  delivery  and  performance  of this
                 Amendment No. 2;

          (v)    Certificates of incumbency and specimen signatures with respect
                 to each of the  officers of  Borrowers  who are  authorized  to
                 execute  and  deliver  this   Amendment  No.  2  and  the  Loan
                 Agreements;

          (vi)   A Draft  Consolidated  Financial  Statement  for the  Borrowers
                 prepared  in  accordance  with  Generally  Accepted  Accounting
                 Principals  for the fiscal year  ending  October 31, 1995 which
                 shall be delivered to Lender by June 10, 1996;


          (vii)  An internally  prepared  Balance  Sheet,  Income  Statement and
                 Statement  of Cash Flows for each  Borrower  for the four month
                 period  ending  February  28, 1996 which shall be  delivered to
                 Lender by May 22, 1996;

          (viii) A Compilation  and Cash Flow  Statements  for each Borrower for
                 the five month  period  ending  March 31,  1996 which  shall be
                 delivered to Lender by May 24, 1996;

          (ix)   A  Capitalization   Proposal  for  DCI,  including  a  proposed
                 timetable, as prepared by management of DCI and approved by the
                 DCI Board of  Directors  which shall be  delivered to Lender by
                 June 7, 1996;

                                       6
                                                            Page 20 of 207 Pages
<PAGE>


     (c) have executed and delivered this Amendment No. 2;

     (d)  Borrowers  shall from March 1, 1996,  collect at least Eighty  Percent
(80%) of the  projected  accounts  receivable  as set forth on page DDN-6 of the
annexed Exhibit "C", all as set forth on page DDN-6, identified in each instance
as a page from the Delta Data Net, Inc. Financial  Projections for the two years
ended October 31, 1997.

     (e)  Borrowers  shall have paid all fees and  expenses of Lender's  counsel
incurred in the preparation, negotiation, execution, delivery and administration
of this Amendment No. 2.

     11. Termination. In the event the Lender shall terminate this Amendment No.
2, DCI  agrees  that , at the option of Lender,  it shall  commence a  voluntary
liquidation of its entire business.  This provision is in addition to any of the
other rights and remedies available to the Lender under the Loan Agreements.

     12.  Bankruptcy.  In the event either of the Borrowers files for bankruptcy
relief under 11 U.S.C.  Section 101 et seq. or an involuntary  petition is filed
against either of the Borrowers,  then in such event,  Borrowers agree that they
will consent to granting  Lender  relief from the  automatic  stay  provided for
under 11 U.S.C. Section 362 and Borrowers shall not seek to restrain,  enjoin or
otherwise  interfere with Lender's rights  pursuant to 11 U.S.C.  Section 105 or
any other  Federal  or State  statute.  Borrowers  will  consent to any Order or
execute any  document  necessary  for Lender to obtain the relief  provided  for
herein.

     13. Relationship of Parties; No Third Party Beneficiaries.  Nothing in this
Amendment  No. 2 shall be  construed  to alter  the  existing  borrower-creditor
relationship  between Borrowers and Lender, nor is this Amendment No. 2 intended
to change or affect in any way the  relationship.  This  Amendment  No. 2 is not
intended,  nor shall it be construed to create,  a partnership  or joint venture
relationship  between or among any of the  parties  hereto.  No person or entity
other than a party hereto is intended to be a  beneficiary  hereof and no person
or  entity  other  than a party  hereto  shall be  authorized  to rely  upon the

contents of this Amendment No. 2.

     14. Entire  Agreement;  Modification  of Agreement.  This  Amendment No. 2,
amendment  No.  1, the  Forbearance  Agreement  and the  other  Loan  Agreements
constitute the entire  understanding  of the parties with respect to the subject
matter hereof and thereof. This Amendment No. 2 may not be modified,  altered or
amended except by agreement in writing signed by all the parties hereto.

     15.  Governing Law. This Amendment No. 2 shall be governed by and construed
in accordance with the law of the State of New York.

     16.  Non-Waiver  of  Default.  Neither  this  Amendment  No.  2 ,  Lender's
forbearance  hereunder  nor  Lender's  continued  making  of  Loans  to  DCI  in
accordance  with this  Amendment No. 2 shall be deemed a waiver of or consent to
the Events of Default referenced in Section 2 of this 

                                       7
                                                            Page 21 of 207 Pages
<PAGE>


Amendment No. 2. Borrowers agree that such Events of Default shall not be deemed
to have  been  waived,  released  or cured by  virtue  of such  Loans,  Lender's
agreement  to  forbear  pursuant  to the  terms of this  Amendment  No. 2 or the
execution of this Amendment No. 2.

     17. No Novation.  This  Amendment No. 2 is not intended to be, nor shall it
be construed to create,  a novation or accord and  satisfaction,  and, except as
otherwise  expressly  stated herein,  the Loan  Agreements  (including,  without
limitation,  Borrowers'  obligation  under the  Lockbox  Agreement  by and among
Borrowers and Lender) shall remain in full force and effect. Notwithstanding any
prior  mutual  temporary  disregard  of  any  of the  terms  of any of the  Loan
Agreements,  the  parties  agree  that the terms of each of the Loan  Agreements
shall be strictly  adhered to on and after the date hereof,  except as expressly
modified by this Amendment No. 2.

     18.  Miscellaneous.  This  Amendment No. 2 may be executed in any number of
counterparts and by different parties hereto in separate  counterparts,  each of
which when so executed  shall  constitute  an  original,  but all of which taken
together shall be one and the same  instrument.  In enforcing this Amendment No.
2, it shall  not be  necessary  to  produce  or  account  for more than one such
counterpart  signed by the party against whom  enforcement is sought.  Notice of
Lender's acceptance hereof is hereby waived.

     19. Release of Claims. TO INDUCE LENDER TO ENTER INTO THIS AMENDMENT NO. 2,
BORROWERS  HEREBY RELEASE,  ACQUIT AND FOREVER  DISCHARGE  LENDER,  AND LENDER'S
OFFICERS, DIRECTORS, PROFESSIONALS,  AUCTIONEERS, APPRAISERS, ATTORNEYS, AGENTS,
EMPLOYEES,  SUCCESSORS  AND  ASSIGNS,  FROM ALL  LIABILITIES,  CLAIMS,  DEMANDS,
ACTIONS OR CAUSES OF ACTIONS OF ANY KIND (IF ANY THERE BE),  WHETHER ABSOLUTE OR
CONTINGENT,  DUE OR TO BECOME DUE, DISPUTED OR UNDISPUTED,  AT LAW OR IN EQUITY,
THAT THE  BORROWERS  NOW  HAVE OR EVER HAD  AGAINST  LENDER  RISING  UNDER OR IN
CONNECTION  WITH ANY OF THE LOAN  AGREEMENTS,  THE  FORBEARANCE  AGREEMENT,  THE
PUBLIC AUCTION SALE OR OTHERWISE.


     20. Severability. Wherever possible, each provision of this Amendment No. 2
is to  be  interpreted  in  such  manner  as to be  effective  and  valid  under
applicable law, but if any provision of this Amendment No. 2 is to be prohibited
by or invalid under  applicable law, such provision is to be ineffective only to
the extent of such prohibition or invalidity, without invalidating the remainder
of such provision or the remaining provisions of this Amendment No. 2.

     21. Loan  Agreements.  This Amendment No. 2 shall be entitled to all of the
benefits of the Loan Agreements.

     22. Further  Representations.  The Borrowers  hereby  represent and warrant
that after the date hereof they will have the same principal  place of business,
DCI will  continue to do business in the same  location as it was doing prior to
the date hereof and will continue to use the names Delta 

                                       8
                                                            Page 22 of 207 Pages
<PAGE>


Computec  Inc. and Delta Data Net,  Inc.,  unless it gives Lender prior  written
notice of any such change in the manner provided for under the Loan Agreements.

     23. Notices.  The Borrowers hereby  acknowledge that all notices,  requests
and demands in  accordance  with the Loan  Agreements  and this  Amendment No. 2
shall be addressed to:

                           E. Lynn Forgosh, Group V.P.
                          National Canada Finance Corp.
                              125 West 55th Street
                          New York, New York 10019-5366

                              -- with a copy to --

                           Walter J. Greenhalgh, Esq.
                           Robinson, St. John & Wayne
                               Two Penn Plaza East
                          Newark, New Jersey 07105-2249

     Lender  hereby  acknowledges  that all  notices,  requests  and  demands in
accordance  with the Loan  Documents and this Amendment No. 2 shall be addressed
to:

                                    President
                              Delta Computec, Inc.
                                900 Huyler Street
                           Teterboro, New Jersey 07608
                           telecopy no. (201) 440-3985

                                       or

                                    President
                              Delta Data Net, Inc.
                                900 Huyler Street

                           Teterboro, New Jersey 07608
                           telecopy no. (201) 440-3985

                              -- with a copy to --

                              Edwin M. Larkin, Esq.
                           Jaeckle, Fleishmann & Mugel
                           39 State Street, Suite 460
                         Rochester, New York 14614-1310
                           telecopy no. (716) 262-4133

                                       9
                                                            Page 23 of 207 Pages
<PAGE>


IN WITNESS  WHEREOF,  the parties  hereto have caused this Amendment No. 2 to be
duly executed and delivered on the date first written above.


                                            BORROWERS:

                                            DELTA COMPUTEC INC.

ATTEST:                                     By: /s/ John DeVito
                                               ---------------------------------
                                            Name: John DeVito
                                                 -------------------------------
                                            Title: President
                                                  ------------------------------
By: /s/ [ILLEGIBLE]
   -------------------------
      [CORPORATE SEAL]

                                            DELTA DATA NET, INC.

ATTEST:                                     By: /s/ John DeVito
                                               ---------------------------------
                                            Name: John DeVito
                                                 -------------------------------
                                            Title: President
                                                  ------------------------------
By: /s/ [ILLEGIBLE]
   -------------------------
      [CORPORATE SEAL]


                       (SIGNATURES CONTINUED ON NEXT PAGE)

                                       10
                                                            Page 24 of 207 Pages
<PAGE>



                                            LENDER:

                                            NATIONAL CANADA FINANCE CORP.


                                            By: ______________________________
                                                 E. Lynn Forgosh, Group V.P.

 ATTEST:

By:_________________________
      [CORPORATE SEAL]


                                       11
                                                            Page 25 of 207 Pages


<PAGE>
       THIS DOCUMENT IS A COPY OF THE EXHIBIT FILED ON OCTOBER 24, 1996
             PURSUANT TO A RULE 201 TEMPORARY HARDSHIP EXEMPTION.

                               AMENDMENT NO. 3 TO
                              FORBEARANCE AGREEMENT
                              ---------------------

     THIS AMENDMENT NO. 3 TO FORBEARANCE  AGREEMENT  ("Amendment No. 3") is made
and entered  into as of June 14,  1996,  by and  between  Delta  Computec,  Inc.
("DCI") and Delta Data Net, Inc.  ("DDI"),  (collectively,  the "Borrowers") and
National Canada Finance Corp. ("Lender").

                              W I T N E S S E T H:

     WHEREAS,  Lender  and  Borrowers  entered  into  that  certain  Forbearance
Agreement dated March 8, 1996 ( the " Forbearance  Agreement"),  a copy of which
is attached  hereto as Exhibit  "A", in which the Lender  agreed to forbear from
exercising  certain  rights  and  remedies  under its Loan  Documents  and under
applicable law against the Borrowers and their properties, provided that certain
conditions were met as more fully provided in the Forbearance Agreement; and

     WHEREAS,  Lender and Borrowers  entered into  Amendment No.1 to Forbearance
Agreement  dated May 9, 1996 ("  Amendment  No.1"),  a copy of which is attached
hereto as Exhibit  "B", in which the Lender  agreed to forbear  from  exercising
certain rights and remedies  under its Loan  Documents and under  applicable law
against  the  Borrowers  and  their  properties  and to  extend  the term of the
Forbearance Period as more fully set forth in the Forbearance Agreement from May
8, 1996 to May 22, 1996, provided that certain conditions were met as more fully
provided in the Amendment No.1; and

     WHEREAS,  Lender and Borrowers  entered into  Amendment No.2 to Forbearance
Agreement  dated May 23, 1996 (" Amendment  No.2"),  a copy of which is attached
hereto as Exhibit  "C", in which the Lender  agreed to forbear  from  exercising
certain rights and remedies  under its Loan  Documents and under  applicable law
against  the  Borrowers  and  their  properties  and to  extend  the term of the
Forbearance Period as more fully set forth in the Forbearance Agreement from May
22, 1996 to June 14, 1996,  provided  that certain  conditions  were met as more
fully provided in the Amendment No.2; and

     WHEREAS, the Lender has agreed to extend the term of the Forbearance Period
as more fully set forth in the Forbearance  Agreement from June 14, 1996 to July
31, 1996 provided that the Borrowers comply with all terms and conditions of the
Forbearance  Agreement,  Amendment No. 1, Amendment No. 2 and this Amendment No.
3; and

     WHEREAS,  on March 8, 1996,  DDI  terminated  its business  operations  and
closed its business facility located at 900 Huyler Street, Teterboro, New Jersey
07608,  which action  constituted an Event of Default under the Loan Agreements;
and

                                                            Page 26 of 207 Pages
<PAGE>



     WHEREAS,  DDI  peaceably  turned over to Lender on March 11, 1996,  the DDI
Collateral, except the DDI accounts receivable; which DDI Collateral was sold at
public  auction sale  pursuant to the Uniform  Commercial  Code on April 9, 1996
(the "Public Auction Sale"); and

     WHEREAS,  DCI and DDI remain jointly and severally liable to Lender for any
deficiency following the Public Auction Sale of the DDI Collateral in accordance
with the Loan Documents and applicable law; and

     WHEREAS,  all Loans made by Lender to Borrowers,  and all other liabilities
and obligations at any time or time owing by Borrowers to Lender, continue to be
secured  by  security  interests  granted  by  Borrowers  to  Lender  in  all of
Borrowers' then existing and thereafter acquired accounts, inventory, equipment,
general intangibles,  chattel paper, contract rights,  instruments and balances,
as more full set forth in the Loan Agreements; and

     WHEREAS,  the  Guarantor  by  separate  Guaranty  Agreement,  continues  to
unconditionally  guarantee payment to Lender of certain  liabilities at any time
owing by Borrowers to Lender under the Loan  Agreements,  or otherwise,  as more
fully set forth in the

Guaranty Agreement; and

     WHEREAS, there exists continuing defaults under the Loan Agreements; and

     WHEREAS,  Borrowers desire that Lender continue to forebear from exercising
certain remedies available to Lender under the Loan Agreements,  the Forbearance
Agreement and applicable law;

     WHEREAS,  Borrowers and the Guarantor desire that Lender  continue,  during
the Forbearance Period to make Loans to DCI pursuant to the Loan Agreements,  as
modified hereby;

     WHEREAS,  Lender is willing to continue to forbear,  in accordance with the
terms of the  Forbearance  Agreement,  Amendment No. 1, Amendment No. 2 and this
Amendment  No. 3, from  exercising  remedies  available to it as a result of the
continuing  defaults  under the Loan  Agreements,  and to continue  making Loans
consistent  with this  Amendment No. 3, Amendment No. 2, Amendment No. 1 and the
Forbearance Agreement, but only on the terms and conditions contained herein;

     WHEREAS,  all  capitalized  terms  used in this  Amendment  No.  3,  unless
otherwise  defined,  shall  have  the  meaning  ascribed  to such  terms  in the
Forbearance Agreement and the Loan Agreements; and

     NOW,  THEREFORE FOR TEN DOLLARS  ($10.00) in hand paid and in consideration
of the premises and the mutual covenants herein  contained,  the parties hereto,
intending to be legally bound hereby, agree as follows:

                                       2
                                                            Page 27 of 207 Pages
<PAGE>



1. Definitions:

          "Forbearance  Period"  shall  mean the period  commencing  on the date
     hereof  and ending at the close of  business  on July 31,  1996,  provided,
     however, that the foregoing date may be extended to a later date by written
     agreement of the Lender, in its sole and absolute discretion.

2.  Acknowledgments  and Stipulations by Borrowers.  The Borrowers  acknowledge,
stipulate and agree that:

          (a) as of the opening of business on June 14, 1996,  the  Indebtedness
     is  $2,305,358.98   exclusive  of  interest,   costs  and  attorneys'  fees
     chargeable to Borrowers under the Loan Agreements;

          (b) all of the  Indebtedness  is absolutely due and owing by Borrowers
     to Lender without any defense, deduction, offset or counterclaim;

          (c) the following  Events of Default have occurred and are  continuing
     under the Loan Agreements;

               (i) The cessation of the business operations by DDI;

               (ii) Borrowers are not in compliance with the following financial
          covenants contained in the Credit Agreement as follows:  Section 6.17-
          Tangible Net Worth; Section 6.18  -Debt-to-Tangible Net Worth; Section
          6.19-  Working  Capital  Ratio;  Section  6.20 - Pre-Tax  Income;  and
          Section 6.21-Interest Coverage Ratio.

          (d)  the  Lender  does  not  waive  as to  Borrowers  any  unknown  or
     unenumerated Event of Default which exists under the Loan Agreements;

          (e) each of the Loan Agreements, the Forbearance Agreement,  Amendment
     No.1,  Amendment  No.2 and this  Amendment  No.3  executed by Borrowers are
     legal,  valid and binding  obligations  of Borrowers,  enforceable  against
     Borrowers in accordance with their respective terms;

          (f) the  security  interest  granted  by  Borrowers  to  Lender in the
     Collateral is a duly perfected, first priority security interest; and


                                       3
                                                            Page 28 of 207 Pages
<PAGE>



          (g) Lender shall be permitted in its sole and absolute  discretion  to
     apply the proceeds from the DDI Collateral to the Indebtedness.

     3. Agreement to Forebear.  Provided that no Termination Event has occurred,
Lender agrees that during the  Forbearance  Period it will not, solely by reason
of the  existence on this date of the Events of Default  referenced in Section 2
of this Amendment No. 3, exercise any default  remedy  available to Lender under
the Loan Agreements to enforce collection from DCI of any of the Indebtedness or

to  foreclose  its  security  interest  in  any  of the  Collateral  during  the
Forbearance  Period except with regards to the Collateral  owned by DDI. Neither
this Amendment No. 3 nor Lender's forbearance  hereunder shall be deemed to be a
waiver of or a consent to the Events of Default  referenced in Section 2 of this
Amendment No. 3.

     4. Termination of Forbearance. If any one or more of the Termination Events
occur, Lender's agreement to forbear as set forth in Section 3 of this Amendment
No. 3 shall,  at  Lender's  election,  upon  written  notice to or  demand  upon
Borrowers  (it being  agreed by the parties that such notice may be delivered by
facsimile  with a copy  to  Borrowers'  counsel),  terminate  and  Lender  shall
thereupon have and may exercise from time to time all of the remedies  available
to it under the Loan  Agreements and applicable law as a consequence of an Event
of Default, without further notice, demand or presentment.

     5. Loans. During the Forbearance Period, Borrowers may request, and Lender,
in its sole and  absolute  discretion,  may  make  Loans to DCI in an  aggregate
amount  (when  added to all then  outstanding  Loans,  whether  made prior to or
during the  Forbearance  Period)  not to exceed the  Maximum  Loan  Amount.  The
Maximum Loan Amount shall mean the lesser of:

                                       4
                                                            Page 29 of 207 Pages
<PAGE>



(a)  (1)  Eighty  Percent  (80%)  of  DCI's  Eligible   Receivables  on  service
          contracts  that are based on a billing  schedule  of no  greater  than
          ninety (90) days;
     (2)  Eighty  Percent  (80%)  of  DCI's  Eligible   Receivables  on  service
          contracts  which do not exceed $25,000 and that are based on a billing
          schedule  of in  excess of ninety  (90) days but no  greater  than one
          year;
     (3)  Eighty  Percent  (80%)  of  DDI's  Eligible   Receivables  on  service
          contracts  that are based on a billing  schedule  of no  greater  than
          ninety (90) days;
     (4)  Eighty  Percent  (80%)  of  DDI's  Eligible   Receivables  on  service
          contracts  which do not exceed $25,000 and that are based on a billing
          schedule  of in  excess of ninety  (90) days but no  greater  than one
          year;
     (5)  Fifty Percent (50%) of DCI's Eligible Receivables on service contracts
          which  exceed  $25,000 and that are based on a billing  schedule of in
          excess of ninety  (90) days but no  greater  than one  hundred  eighty
          (180) days;
     (6)  Twenty-five  Percent (25%) of DCI's  Eligible  Receivables  on service
          contracts  which  exceed  $25,000  and  that are  based  on a  billing
          schedule of in excess of one hundred  eighty (180) days but no greater
          than one year; and
     (7)  $300,000; less
     (8)  Outstanding Letter of Credit Obligations; or

(b)  Three Million Two Hundred Fifty Thousand  Dollars  ($3,250,000),  including
     Letter of Credit Obligations, in the aggregate at any one time outstanding,

     provided Lender obtains a Loan participant in an amount not less than Three
     Hundred  Thousand  Dollars  ($300,000).  In the event that  Lender does not
     obtain a Loan participant in an amount not less than Three Hundred Thousand
     Dollars  ($300,000),  then the  Maximum  Loan  Amount  shall not exceed Two
     Million Nine Hundred Fifty 

                                       5
                                                            Page 30 of 207 Pages
<PAGE>

     Thousand Dollars  ($2,950,000),  including Letter of Credit  Obligations in
     the aggregate at any one time outstanding.

Notwithstanding the foregoing provision and any other provision contained in the
Loan Agreements or any course of dealing or conduct between Lender and Borrowers
prior to the date hereof,  Lender shall have no obligation to make further Loans
to DCI;  Lender may make, or refuse to make,  Loans to DCI, in its discretion in
each  instance;  and  Lender  reserves  the right to make Loans in excess of the
Maximum Loan Amount.

     All Loans made during the  Forbearance  Period  shall be payable on demand,
and shall be entitled to all  benefits and  protections  and secured in the same
manner and to the same extent as Loans made prior to the date hereof.  All Loans
made during the  Forbearance  Period shall bear interest as provided in the Loan
Agreements.

     All payments of Receivables must be credited through a lock box arrangement
through Lender's offices which shall be held by Lender as collateral for payment
and/or performance of Borrowers' Obligations to Lender.

     6. No Further  Commitments by Lender.  Borrowers  further  acknowledge  and
agree that the Lender has no existing commitments,  obligations or agreements to
make  Loans or to make other  loans,  to issue  letters of credit,  or to extend
other financial accommodations to Borrowers, except the parties have agreed that
during the  Forbearance  Period they will negotiate in good faith to restructure
the debt of DCI to the Lender.

     7. Reaffirmation of Loan Agreements.  The Borrowers reaffirm and agree that
all of the Loan  Agreements are fully  enforceable  and in full force and effect
and have not been waived or modified in any manner except as expressly set forth
in the Forbearance  Agreement,  Amendment No. 1, Amendment No. 2, this Amendment
No. 3, and that the Loan  Agreements,  as modified by this  Amendment No. 3, are
fully enforceable and in full force and effect on the date of this Amendment No.
3.

     8.  Application  of Payments and  Collections.  Borrowers  hereby waive the
right,  if any, to direct the manner in which  Lender  applies  any  payments or
collections to the Indebtedness and agrees that Lender may apply and reapply all
such payments to the Indebtedness as Lender in its sole and absolute  discretion
elects from time to time.

     9.  Representations  and Warranties of Borrowers.  Borrowers  represent and
warrant that (a) no Event of Default  exists under the Loan  Agreements,  except
for Events of Default  identified in Section 2 of this  Amendment No. 3 that are

in existence on the date hereof;  (b) subject to the  existence of the Events of
Default specified in Section 2 of this Amendment No. 3, the  representations and
warranties of Borrowers  contained in the Loan  Agreements were true and correct
in all material  respects on the date hereof;  (c) the  execution,  delivery and
performance  by Borrowers of this  Amendment No. 3 and the  consummation  of the
transactions contemplated hereby are within 

                                       6
                                                            Page 31 of 207 Pages
<PAGE>


the power of Borrowers and have been duly authorized by all necessary  corporate
action on the part of the Borrowers,  do not require any approval or consent, or
filing with, any governmental  agency or authority or any person, do not violate
any  provisions  of any law,  rule or  regulation or any provision of any order,
writ, judgment,  injunction,  decree, determination or award presently in effect
in which  Borrowers  are named or any  provision  of the  charter  documents  of
Borrowers  and do not result in a breach of or  constitute  a default  under any
agreement or instrument  to which  Borrowers are a party or by which they or any
of their  properties are bound;  (d) this Amendment No. 3 constitutes the legal,
valid and binding  obligation of  Borrowers,  enforceable  against  Borrowers in
accordance  with its terms;  (e) the Borrowers are entering into this  Amendment
No. 3 freely  and  voluntarily  with the  advice of legal  counsel  of their own
choosing;  (f) the Borrowers have freely and voluntarily agreed to the releases,
waivers  and  undertakings  set forth in this  Amendment  No. 3; (g) the  Public
Auction  Sale and all efforts  taken by the Lender,  its agents,  employees  and
attorneys to notice, conduct and conclude the Public Auction Sale were proper by
the  Lender,  its  agents,  employees  and  attorneys  and were  performed  in a
commercially  reasonable  manner as provided for in the Uniform  Commercial Code
and the Borrowers  freely and  voluntarily  release and waive any claims against
the Lender, its agents,  employees and attorneys for any actions or undertakings
in connection  with the Public  Auction Sale; and (h)  irrespective  of the fact
that the financial projections dated

April 12, 1996, for the two (2) years ending  October 31, 1997,  prepared by the
Borrowers,  indicate  loans in excess of the Maximum Loan Amount are required by
the Borrowers,  Borrowers  acknowledge  that the Maximum Loan Amount will not be
exceeded.

     10.  Covenants of the  Borrowers.  In addition to each of the covenants set
forth in the Loan Agreements, the Borrowers have, or will:

     (a) duly and  punctually  observe,  perform  and  discharge  each and every
obligation and covenant on their parts to be performed  under this Amendment No.
3;

     (b) deliver to the Lender,  each of which shall be satisfactory in form and
substance to Lender:

          (i) Release and Indemnification Agreement by the Borrowers;

          (ii) A signed  consent  from  Joseph M.  Lobozzo,  II  agreeing to and
     acknowledging  to the  delivery  and  execution  of  Amendment  No. 3 and a

     Reaffirmation of Subordination;

          (iii) A signed Reaffirmation of Guaranty by SAI/Delta, Inc.;

          (iv) Certified copies (certified by authorized  officers of Borrowers)
     of a corporate  resolution  taken by Borrowers to authorize the  execution,
     delivery and performance of this Amendment No. 3;

                                       7
                                                            Page 32 of 207 Pages
<PAGE>


          (v) Certificates of incumbency and specimen signatures with respect to
     each of the officers of Borrowers who are authorized to execute and deliver
     this Amendment No. 3 and the Loan Agreements;

          (vi) A  Draft  Consolidated  Financial  Statement  for  the  Borrowers
     prepared in accordance with Generally  Accepted  Accounting  Principals for
     the fiscal year ending  October  31,1995 which shall be delivered to Lender
     by July 1, 1996;

     (c) have executed and delivered this Amendment No. 3;

     (d)  Borrowers  shall from March 1, 1996,  collect at least Eighty  Percent
(80%) of the  projected  accounts  receivable  as set forth on page DDN-6 of the
annexed Exhibit "D", all as set forth on page DDN-6, identified in each instance
as a page from the Delta Data Net, Inc. Financial  Projections for the two years
ended October 31, 1997; and

     (e)  Borrowers  shall have paid all fees and  expenses of Lender's  counsel
incurred in the preparation, negotiation, execution, delivery and administration
of this Amendment No. 3.

     11. Termination. In the event the Lender shall terminate this Amendment No.
3, DCI  agrees  that,  at the option of Lender,  it shall  commence a  voluntary
liquidation of its entire business.  This provision is in addition to any of the
other rights and remedies available to the Lender under the Loan Agreements.

     12.  Bankruptcy.  In the event either of the Borrowers files for bankruptcy
relief under 11 U.S.C.  Section 101 et seq. or an involuntary  petition is filed
against either of the Borrowers,  then in such event,  Borrowers agree that they
will consent to granting  Lender  relief from the  automatic  stay  provided for
under 11 U.S.C. Section 362 and Borrowers shall not seek to restrain,  enjoin or
otherwise  interfere with Lender's rights  pursuant to 11 U.S.C.  Section 105 or
any other  Federal  or State  statute.  Borrowers  will  consent to any Order or
execute any  document  necessary  for Lender to obtain the relief  provided  for
herein.

     13. Relationship of Parties; No Third Party Beneficiaries.  Nothing in this
Amendment  No. 3 shall be  construed  to alter  the  existing  borrower-creditor
relationship  between Borrowers and Lender, nor is this Amendment No. 3 intended
to change or affect in any way the  relationship.  This  Amendment  No. 3 is not
intended,  nor shall it be construed to create,  a partnership  or joint venture

relationship  between or among any of the  parties  hereto.  No person or entity
other than a party hereto is intended to be a  beneficiary  hereof and no person
or  entity  other  than a party  hereto  shall be  authorized  to rely  upon the
contents of this Amendment No. 3.

     14. Entire  Agreement;  Modification  of Agreement.  This  Amendment No. 3,
Amendment No.2,  Amendment No. 1, the  Forbearance  Agreement and the other Loan
Agreements  constitute the entire  understanding  of the parties with respect to
the subject matter hereof and 

                                       8
                                                            Page 33 of 207 Pages
<PAGE>

thereof. This Amendment No. 3 may not be modified,  altered or amended except by
agreement in writing signed by all the parties hereto.

     15.  Governing Law. This Amendment No. 3 shall be governed by and construed
in accordance with the -------------- law of the State of New York.

     16.  Non-Waiver  of  Default.   Neither  this  Amendment  No.  3,  Lender's
forbearance  hereunder  nor  Lender's  continued  making  of  Loans  to  DCI  in
accordance  with this  Amendment No. 3 shall be deemed a waiver of or consent to
the Events of Default referenced in Section 2 of this Amendment No. 3. Borrowers
agree  that such  Events  of  Default  shall not be deemed to have been  waived,
released  or cured by  virtue  of such  Loans,  Lender's  agreement  to  forbear
pursuant to the terms of this Amendment No. 3 or the execution of this Amendment
No. 3.

     17. No Novation.  This  Amendment No. 3 is not intended to be, nor shall it
be construed to create,  a novation or accord and  satisfaction,  and, except as
otherwise  expressly  stated herein,  the Loan  Agreements  (including,  without
limitation,  Borrowers'  obligation  under the  Lockbox  Agreement  by and among
Borrowers and Lender) shall remain in full force and effect. Notwithstanding any
prior  mutual  temporary  disregard  of  any  of the  terms  of any of the  Loan
Agreements,  the  parties  agree  that the terms of each of the Loan  Agreements
shall be strictly  adhered to on and after the date hereof,  except as expressly
modified by this Amendment No. 3.

     18.  Miscellaneous.  This  Amendment No. 3 may be executed in any number of
counterparts and by different parties hereto in separate  counterparts,  each of
which when so executed  shall  constitute  an  original,  but all of which taken
together shall be one and the same  instrument.  In enforcing this Amendment No.
3, it shall  not be  necessary  to  produce  or  account  for more than one such
counterpart  signed by the party against whom  enforcement is sought.  Notice of
Lender's acceptance hereof is hereby waived.

     19. Release of Claims. TO INDUCE LENDER TO ENTER INTO THIS AMENDMENT NO. 3,
BORROWERS  HEREBY RELEASE,  ACQUIT AND FOREVER  DISCHARGE  LENDER,  AND LENDER'S
OFFICERS, DIRECTORS, PROFESSIONALS,  AUCTIONEERS, APPRAISERS, ATTORNEYS, AGENTS,
EMPLOYEES,  SUCCESSORS  AND  ASSIGNS,  FROM ALL  LIABILITIES,  CLAIMS,  DEMANDS,
ACTIONS OR CAUSES OF ACTIONS OF ANY KIND (IF ANY THERE BE),  WHETHER ABSOLUTE OR
CONTINGENT,  DUE OR TO BECOME DUE, DISPUTED OR UNDISPUTED,  AT LAW OR IN EQUITY,
THAT THE  BORROWERS  NOW HAVE OR EVER HAD  AGAINST  LENDER  ARISING  UNDER OR IN

CONNECTION WITH ANY OF THE LOAN AGREEMENTS, THE FORBEARANCE AGREEMENT, AMENDMENT
NO. 1,  AMENDMENT  NO. 2 AND THIS  AMENDMENT  NO. 3, THE PUBLIC  AUCTION SALE OR
OTHERWISE.

     20. Severability. Wherever possible, each provision of this Amendment No. 3
is to  be  interpreted  in  such  manner  as to be  effective  and  valid  under
applicable law, but if any provision of this Amendment No. 3 is to be prohibited
by or invalid under  applicable law, such provision is to 

                                       9
                                                            Page 34 of 207 Pages
<PAGE>

be ineffective  only to the extent of such  prohibition  or invalidity,  without
invalidating the remainder of such provision or the remaining provisions of this
Amendment No. 3.

     21. Loan  Agreements.  This Amendment No. 3 shall be entitled to all of the
benefits of the Loan ---------------- Agreements.

     22. Further  Representations.  The Borrowers  hereby  represent and warrant
that after the date hereof they will have the same principal  place of business,
DCI will  continue to do business in the same  location as it was doing prior to
the date hereof and will continue to use the names Delta Computec Inc. and Delta
Data Net,  Inc.,  unless it gives Lender prior written notice of any such change
in the manner provided for under the Loan Agreements.

     23. Notices.  The Borrowers hereby  acknowledge that all notices,  requests
and demands in  accordance  with the Loan  Agreements  and this  Amendment No. 3
shall be addressed to:

                           E. Lynn Forgosh, Group V.P.
                          National Canada Finance Corp.
                              125 West 55th Street
                          New York, New York 10019-5366

                              -- with a copy to --

                           Walter J. Greenhalgh, Esq.
                           Robinson, St. John & Wayne
                               Two Penn Plaza East
                          Newark, New Jersey 07105-2249

     Lender  hereby  acknowledges  that all  notices,  requests  and  demands in
accordance  with the Loan  Documents and this Amendment No. 3 shall be addressed
to:

                                    President
                              Delta Computec, Inc.
                                900 Huyler Street
                           Teterboro, New Jersey 07608
                           Telecopy No. (201) 440-3985

                                       or


                                    President
                              Delta Data Net, Inc.
                                900 Huyler Street
                           Teterboro, New Jersey 07608
                           Telecopy No. (201) 440-3985

                                       10
                                                            Page 35 of 207 Pages
<PAGE>


                              -- with a copy to --


                              Edwin M. Larkin, Esq.
                           Jaeckle, Fleishmann & Mugel
                           39 State Street, Suite 460
                         Rochester, New York 14614-1310
                           Telecopy No. (716) 262-4133

IN WITNESS  WHEREOF,  the parties  hereto have caused this Amendment No. 3 to be
duly executed and delivered on the date first written above.

                                                     BORROWERS:

                                                     DELTA COMPUTEC INC.

ATTEST:                                              By: /s/ John Devito
                                                         -----------------------
                                                     Name: John Devito
                                                           ---------------------
                                                     Title: President
                                                            --------------------
By:_______________________
      [CORPORATE SEAL]

                                                     DELTA DATA NET, INC.

ATTEST:                                              By: /s/ John Devito
                                                         -----------------------
                                                     Name: John Devito
                                                           ---------------------
                                                     Title: President
                                                            --------------------
By:_____________________
      [CORPORATE SEAL]








                       (SIGNATURES CONTINUED ON NEXT PAGE)


                                       11
                                                            Page 36 of 207 Pages
<PAGE>



                                                 LENDER:

                                                 NATIONAL CANADA FINANCE CORP.


                                                 By: ___________________________
                                                     E. Lynn Forgosh, Group V.P.

ATTEST:

By:_________________________
      [CORPORATE SEAL]

                                                            Page 37 of 207 Pages


<PAGE>
       THIS DOCUMENT IS A COPY OF THE EXHIBIT FILED ON OCTOBER 24, 1996
             PURSUANT TO A RULE 201 TEMPORARY HARDSHIP EXEMPTION.

                               AMENDMENT NO. 4 TO
                              FORBEARANCE AGREEMENT

     THIS AMENDMENT NO. 4 TO FORBEARANCE  AGREEMENT  ("Amendment No. 4") is made
and entered  into as of July 31,  1996,  by and  between  Delta  Computec,  Inc.
("DCI") and Delta Data Net, Inc.  ("DDI"),  (collectively,  the "Borrowers") and
National Canada Finance Corp. ("Lender").

                              W I T N E S S E T H:

     WHEREAS,  Lender  and  Borrowers  entered  into  that  certain  Forbearance
Agreement dated March 8, 1996 ( the " Forbearance  Agreement"),  a copy of which
is attached  hereto as Exhibit  "A", in which the Lender  agreed to forbear from
exercising  certain  rights  and  remedies  under its Loan  Documents  and under
applicable law against the Borrowers and their properties, provided that certain
conditions were met as more fully provided in the Forbearance Agreement; and

     WHEREAS,  Lender and Borrowers  entered into  Amendment No.1 to Forbearance
Agreement  dated May 9, 1996 ("  Amendment  No.1"),  a copy of which is attached
hereto as Exhibit  "B", in which the Lender  agreed to forbear  from  exercising
certain rights and remedies  under its Loan  Documents and under  applicable law
against  the  Borrowers  and  their  properties  and to  extend  the term of the
Forbearance Period as more fully set forth in the Forbearance Agreement from May
8, 1996 to May 22, 1996, provided that certain conditions were met as more fully
provided in the Amendment No.1; and

     WHEREAS,  Lender and Borrowers  entered into  Amendment No.2 to Forbearance
Agreement  dated May 23, 1996 (" Amendment  No.2"),  a copy of which is attached
hereto as Exhibit  "C", in which the Lender  agreed to forbear  from  exercising
certain rights and remedies  under its Loan  Documents and under  applicable law
against  the  Borrowers  and  their  properties  and to  extend  the term of the
Forbearance Period as more fully set forth in the Forbearance Agreement from May
22, 1996 to June 14, 1996, provided that


certain conditions were met as more fully provided in the  Amendment No.2; and

         WHEREAS,   Lender  and  Borrowers  entered  into  Amendment  No.  3  to
Forbearance Agreement dated June 14, 1996,  ("Amendment No. 3"), a copy of which
is attached  hereto as Exhibit  "D", in which the Lender  agreed to forbear from
exercising  certain  rights  and  remedies  under its Loan  Documents  and under
applicable law against the Borrowers and their properties and to extend the term
of the Forbearance  Period as more fully set forth in the Forbearance  Agreement
from June 14, 1996 to July 31, 1996,  provided that certain  conditions were met
as more fully provided in the Amendment No. 3; and

     WHEREAS, the Lender has agreed to extend the term of the Forbearance Period
as more  fully  set forth in the  Forbearance  Agreement  from July 31,  1996 to
August 15, 1996 provided that


                                                            Page 38 of 207 Pages
<PAGE>

the Borrowers comply with all terms and conditions of the Forbearance Agreement,
Amendment No. 1, Amendment No. 2, Amendment No. 3 and this Amendment No. 4; and

         WHEREAS,  on March 8, 1996, DDI terminated its business  operations and
closed its business facility located at 900 Huyler Street, Teterboro, New Jersey
07608,  which action  constituted an Event of Default under the Loan Agreements;
and

         WHEREAS, DDI peaceably turned over to Lender on March 11, 1996, the DDI
Collateral, except the DDI accounts receivable; which DDI Collateral was sold at
public  auction sale  pursuant to the Uniform  Commercial  Code on April 9, 1996
(the "Public Auction Sale"); and

         WHEREAS,  DCI and DDI remain jointly and severally liable to Lender for
any  deficiency  following  the Public  Auction  Sale of the DDI  Collateral  in
accordance with the Loan Documents and applicable law; and

     WHEREAS,  all Loans made by Lender to Borrowers,  and all other liabilities
and obligations at any time or time owing by Borrowers to Lender, continue to be
secured  by  security  interests  granted  by  Borrowers  to  Lender  in  all of
Borrowers' then existing and thereafter acquired accounts, inventory, equipment,
general intangibles,  chattel paper, contract rights,  instruments and balances,
as more full set forth in the Loan Agreements; and

     WHEREAS,  the  Guarantor  by  separate  Guaranty  Agreement,  continues  to
unconditionally  guarantee payment to Lender of certain  liabilities at any time
owing by Borrowers to Lender under the Loan  Agreements,  or otherwise,  as more
fully set forth in the Guaranty Agreement; and

     WHEREAS, there exists continuing defaults under the Loan Agreements; and

     WHEREAS,  Borrowers desire that Lender continue to forebear from exercising
certain remedies available to Lender under the Loan Agreements,  the Forbearance
Agreement and applicable law;

     WHEREAS,  Borrowers and the Guarantor desire that Lender  continue,  during
the Forbearance Period to make Loans to DCI pursuant to the Loan Agreements,  as
modified hereby;

     WHEREAS,  Lender is willing to continue to forbear,  in accordance with the
terms of the Forbearance Agreement,  Amendment No. 1, Amendment No. 2, Amendment
No. 3 and this Amendment No. 4, from  exercising  remedies  available to it as a
result of the  continuing  defaults under the Loan  Agreements,  and to continue
making Loans  consistent  with this  Amendment No. 4, Amendment No. 3, Amendment
No. 2, Amendment No. 1 and the Forbearance Agreement,  but only on the terms and
conditions contained herein;

                                      2
                                                            Page 39 of 207 Pages
<PAGE>



     WHEREAS,  all  capitalized  terms  used in this  Amendment  No.  4,  unless
otherwise  defined,  shall  have  the  meaning  ascribed  to such  terms  in the
Forbearance Agreement and the Loan Agreements; and

     NOW,  THEREFORE FOR TEN DOLLARS  ($10.00) in hand paid and in consideration
of the premises and the mutual covenants herein  contained,  the parties hereto,
intending to be legally bound
hereby, agree as follows:

     1.   Definitions:

          "Forbearance  Period"  shall  mean the period  commencing  on the date
     hereof and ending at the close of  business on August 15,  1996,  provided,
     however, that the foregoing date may be extended to a later date by written
     agreement of the Lender, in its sole and absolute discretion.

     2.   Acknowledgments   and   Stipulations   by  Borrowers.   The  Borrowers
acknowledge, stipulate and agree that:

     (a) as of the opening of business on July 30, 1996, the  Indebtedness  is $
1,879,745.40  exclusive of interest,  costs and  attorneys'  fees  chargeable to
Borrowers under the Loan Agreements;

     (b) all of the  Indebtedness  is  absolutely  due and owing by Borrowers to
Lender without any defense, deduction, offset or counterclaim;

     (c) the following  Events of Default have occurred and are continuing under
the Loan Agreements;

          (i) The cessation of the business operations by DDI;

          (ii)  Borrowers  are not in compliance  with the  following  financial
     covenants  contained  in the Credit  Agreement  as follows:  Section  6.17-
     Tangible Net Worth; Section 6.18 -Debt-to-Tangible Net Worth; Section 6.19-
     Working  Capital  Ratio;   Section  6.20  -  Pre-Tax  Income;  and  Section
     6.21-Interest Coverage Ratio.

     (d) the Lender does not waive as to Borrowers  any unknown or  unenumerated
Event of Default which exists under the Loan Agreements;

     (e) each of the Loan Agreements, the Forbearance Agreement, Amendment No.1,
Amendment  No.2,  Amendment No. 3 and this Amendment No. 4 executed by Borrowers
are legal,  valid and binding  obligations  of  Borrowers,  enforceable  against
Borrowers in accordance with their respective terms;

                                      3
                                                            Page 40 of 207 Pages
<PAGE>


     (f) the security  interest granted by Borrowers to Lender in the Collateral
is a duly perfected, first priority security interest; and


     (g) Lender shall be permitted in its sole and absolute  discretion to apply
the proceeds from the DDI Collateral to the Indebtedness.

     3. Agreement to Forebear.  Provided that no Termination Event has occurred,
Lender agrees that during the  Forbearance  Period it will not, solely by reason
of the  existence on this date of the Events of Default  referenced in Section 2
of this Amendment No. 4, exercise any default  remedy  available to Lender under
the Loan Agreements to enforce collection from DCI of any of the Indebtedness or
to  foreclose  its  security  interest  in  any  of the  Collateral  during  the
Forbearance  Period except with regards to the Collateral  owned by DDI. Neither
this Amendment No. 4 nor Lender's forbearance  hereunder shall be deemed to be a
waiver of or a consent to the Events of Default  referenced in Section 2 of this
Amendment No. 4.

     4. Termination of Forbearance. If any one or more of the Termination Events
occur, Lender's agreement to forbear as set forth in Section 3 of this Amendment
No. 4 shall,  at  Lender's  election,  upon  written  notice to or  demand  upon
Borrowers  (it being  agreed by the parties that such notice may be delivered by
facsimile  with a copy  to  Borrowers'  counsel),  terminate  and  Lender  shall
thereupon have and may exercise from time to time all of the remedies  available
to it under the Loan  Agreements and applicable law as a consequence of an Event
of Default, without further notice, demand or presentment.

     5. Loans. During the Forbearance Period, Borrowers may request, and Lender,
in its sole and  absolute  discretion,  may  make  Loans to DCI in an  aggregate
amount  (when  added to all then  outstanding  Loans,  whether  made prior to or
during the  Forbearance  Period)  not to exceed the  Maximum  Loan  Amount.  The
Maximum Loan Amount shall mean the lesser of:

(a)  (1)  Eighty  Percent  (80%)  of  DCI's  Eligible   Receivables  on  service
          contracts  that are based on a billing  schedule  of no  greater  than
          ninety (90) days;
     (2)  Eighty  Percent  (80%)  of  DCI's  Eligible   Receivables  on  service
          contracts  which do not exceed $25,000 and that are based on a billing
          schedule  of in  excess of ninety  (90) days but no  greater  than one
          year;
     (3)  Eighty  Percent  (80%)  of  DDI's  Eligible   Receivables  on  service
          contracts  that are based on a billing  schedule  of no  greater  than
          ninety (90) days;
     (4)  Eighty  Percent  (80%)  of  DDI's  Eligible   Receivables  on  service
          contracts  which do not exceed $25,000 and that are based on a billing
          schedule  of in  excess of ninety  (90) days but no  greater  than one
          year;
     (5)  Fifty Percent (50%) of DCI's Eligible Receivables on service contracts
          which  exceed  $25,000 and that are based on a billing  schedule of in
          excess of ninety  (90) days but no  greater  than one  hundred  eighty
          (180) days;

                                       4
                                                            Page 41 of 207 Pages
<PAGE>


     (6)  Twenty-five  Percent (25%) of DCI's  Eligible  Receivables  on service

          contracts  which  exceed  $25,000  and  that are  based  on a  billing
          schedule of in excess of one hundred  eighty (180) days but no greater
          than one year; and
     (7)  $300,000; less
     (8)  Outstanding Letter of Credit Obligations; or

(b)  Three Million Two Hundred Fifty Thousand  Dollars  ($3,250,000),  including
     Letter of Credit Obligations, in the aggregate at any one time outstanding,
     provided Lender obtains a Loan participant in an amount not less than Three
     Hundred  Thousand  Dollars  ($300,000).  In the event that  Lender does not
     obtain a Loan participant in an amount not less than Three Hundred Thousand
     Dollars  ($300,000),  then the  Maximum  Loan  Amount  shall not exceed Two
     Million Nine Hundred Fifty Thousand Dollars ($2,950,000),  including Letter
     of Credit Obligations in the aggregate at any one time outstanding.

Notwithstanding the foregoing provision and any other provision contained in the
Loan Agreements or any course of dealing or conduct between Lender and Borrowers
prior to the date hereof,  Lender shall have no obligation to make further Loans
to DCI;  Lender may make, or refuse to make,  Loans to DCI, in its discretion in
each  instance;  and  Lender  reserves  the right to make Loans in excess of the
Maximum Loan Amount.

     All Loans made during the  Forbearance  Period  shall be payable on demand,
and shall be entitled to all  benefits and  protections  and secured in the same
manner and to the same extent as Loans made prior to the date hereof.  All Loans
made during the  Forbearance  Period shall bear interest as provided in the Loan
Agreements.

     All payments of Receivables must be credited through a lock box arrangement
through Lender's offices which shall be held by Lender as collateral for payment
and/or performance of Borrowers' Obligations to Lender.

     6. No Further  Commitments by Lender.  Borrowers  further  acknowledge  and
agree that the Lender has no existing commitments,  obligations or agreements to
make  Loans or to make other  loans,  to issue  letters of credit,  or to extend
other financial accommodations to Borrowers, except the parties have agreed that
during the  Forbearance  Period they will negotiate in good faith to restructure
the debt of DCI to the Lender.

     7. Reaffirmation of Loan Agreements.  The Borrowers reaffirm and agree that
all of the Loan  Agreements are fully  enforceable  and in full force and effect
and have not been waived or modified in any manner except as expressly set forth
in the Forbearance Agreement, Amendment No. 1, Amendment No. 2, Amendment No. 3,
this  Amendment  No.  4,  and  that the Loan  Agreements,  as  modified  by this
Amendment No. 4, are fully  enforceable and in full force and effect on the date
of this Amendment No. 4.

                                       5
                                                            Page 42 of 207 Pages
<PAGE>



     8.  Application  of Payments and  Collections.  Borrowers  hereby waive the

right,  if any, to direct the manner in which  Lender  applies  any  payments or
collections to the Indebtedness and agrees that Lender may apply and reapply all
such payments to the Indebtedness as Lender in its sole and absolute  discretion
elects from time to time.

     9.  Representations  and Warranties of Borrowers.  Borrowers  represent and
warrant that (a) no Event of Default  exists under the Loan  Agreements,  except
for Events of Default  identified in Section 2 of this  Amendment No. 4 that are
in existence on the date hereof;  (b) subject to the  existence of the Events of
Default specified in Section 2 of this Amendment No. 4, the  representations and
warranties of Borrowers  contained in the Loan  Agreements were true and correct
in all material  respects on the date hereof;  (c) the  execution,  delivery and
performance  by Borrowers of this  Amendment No. 4 and the  consummation  of the
transactions contemplated hereby are within the power of Borrowers and have been
duly authorized by all necessary  corporate action on the part of the Borrowers,
do not require any approval or consent,  or filing with, any governmental agency
or authority or any person,  do not violate any  provisions  of any law, rule or
regulation or any provision of any order, writ,  judgment,  injunction,  decree,
determination  or award  presently in effect in which Borrowers are named or any
provision of the charter documents of Borrowers and do not result in a breach of
or constitute a default under any agreement or instrument to which Borrowers are
a party  or by  which  they or any of  their  properties  are  bound;  (d)  this
Amendment  No.  4  constitutes  the  legal,  valid  and  binding  obligation  of
Borrowers,  enforceable  against Borrowers in accordance with its terms; (e) the
Borrowers are entering into this Amendment No. 4 freely and voluntarily with the
advice of legal counsel of their own choosing; (f) the Borrowers have freely and
voluntarily  agreed to the releases,  waivers and undertakings set forth in this
Amendment  No.  4; (g) the  Public  Auction  Sale and all  efforts  taken by the
Lender, its agents,  employees and attorneys to notice, conduct and conclude the
Public  Auction  Sale were  proper by the  Lender,  its  agents,  employees  and
attorneys and were performed in a commercially reasonable manner as provided for
in the Uniform Commercial Code and the Borrowers freely and voluntarily  release
and waive any claims against the Lender, its agents, employees and attorneys for
any actions or  undertakings in connection with the Public Auction Sale; and (h)
irrespective  of the fact that the financial  projections  dated April 12, 1996,
for the two (2) years  ending  October  31,  1997,  prepared  by the  Borrowers,
indicate  loans in  excess  of the  Maximum  Loan  Amount  are  required  by the
Borrowers,  Borrowers  acknowledge  that the  Maximum  Loan  Amount  will not be
exceeded.

     10.  Covenants of the  Borrowers.  In addition to each of the covenants set
forth in the Loan Agreements, the Borrowers have, or will:

     (a) duly and  punctually  observe,  perform  and  discharge  each and every
obligation and covenant on their parts to be performed  under this Amendment No.
4;

     (b) deliver to the Lender,  each of which shall be satisfactory in form and
substance to Lender:

     (i)  Release and Indemnification Agreement by the Borrowers;

                                       6
                                                            Page 43 of 207 Pages

<PAGE>


     (ii) A  signed  consent  from  Joseph  M.  Lobozzo,   II  agreeing  to  and
          acknowledging  to the delivery and  execution of Amendment No. 4 and a
          Reaffirmation of Subordination;

     (iii) A signed Reaffirmation of Guaranty by SAI/Delta, Inc.;

     (iv) Certified copies (certified by authorized  officers of Borrowers) of a
          corporate  resolution  taken by Borrowers to authorize the  execution,
          delivery and performance of this Amendment No. 4;

     (v)  Certificates  of incumbency  and specimen  signatures  with respect to
          each of the officers of Borrowers  who are  authorized  to execute and
          deliver this Amendment No. 4 and the Loan Agreements;

     (c)  have executed and delivered this Amendment No. 4;

     (d)  Borrowers  shall from March 1, 1996,  collect at least Eighty  Percent
(80%) of the  projected  accounts  receivable  as set forth on page DDN-6 of the
annexed Exhibit "E", all as set forth on page DDN-6, identified in each instance
as a page from the Delta Data Net, Inc. Financial  Projections for the two years
ended October 31, 1997; and

     (e)  Borrowers  shall have paid all fees and  expenses of Lender's  counsel
incurred in the preparation, negotiation, execution, delivery and administration
of this Amendment No. 4.

     11. Termination. In the event the Lender shall terminate this Amendment No.
4, DCI  agrees  that , at the option of Lender,  it shall  commence a  voluntary
liquidation of its entire business.  This provision is in addition to any of the
other rights and remedies available to the Lender under the Loan Agreements.

     12.  Bankruptcy.  In the event either of the Borrowers files for bankruptcy
relief under 11 U.S.C.  Section 101 et seq. or an involuntary  petition is filed
against either of the Borrowers,  then in such event,  Borrowers agree that they
will consent to granting  Lender  relief from the  automatic  stay  provided for
under 11 U.S.C. Section 362 and Borrowers shall not seek to restrain,  enjoin or
otherwise  interfere with Lender's rights  pursuant to 11 U.S.C.  Section 105 or
any other  Federal  or State  statute.  Borrowers  will  consent to any Order or
execute any  document  necessary  for Lender to obtain the relief  provided  for
herein.

     13. Relationship of Parties; No Third Party Beneficiaries.  Nothing in this
Amendment  No. 4 shall be  construed  to alter  the  existing  borrower-creditor
relationship  between Borrowers and Lender, nor is this Amendment No. 4 intended
to change or affect in any way the  relationship.  This  Amendment  No. 4 is not
intended,  nor shall it be construed to create,  a partnership  or joint venture
relationship  between or among any of the  parties  hereto.  No person or entity

                                       7
                                                            Page 44 of 207 Pages
<PAGE>



other than a party hereto is intended to be a  beneficiary  hereof and no person
or  entity  other  than a party  hereto  shall be  authorized  to rely  upon the
contents of this Amendment No. 4.

     14. Entire  Agreement;  Modification  of Agreement.  This  Amendment No. 4,
Amendment No. 3, Amendment No.2, Amendment No. 1, the Forbearance  Agreement and
the other Loan  Agreements  constitute the entire  understanding  of the parties
with respect to the subject matter hereof and thereof.  This Amendment No. 4 may
not be modified, altered or amended except by agreement in writing signed by all
the parties hereto.

     15.  Governing Law. This Amendment No. 4 shall be governed by and construed
in accordance with the law of the State of New York.

     16.  Non-Waiver  of  Default.   Neither  this  Amendment  No.  4,  Lender's
forbearance  hereunder  nor  Lender's  continued  making  of  Loans  to  DCI  in
accordance  with this  Amendment No. 4 shall be deemed a waiver of or consent to
the Events of Default referenced in Section 2 of this Amendment No. 4. Borrowers
agree  that such  Events  of  Default  shall not be deemed to have been  waived,
released  or cured by  virtue  of such  Loans,  Lender's  agreement  to  forbear
pursuant to the terms of this Amendment No. 4 or the execution of this Amendment
No. 4.

     17. No Novation.  This  Amendment No. 4 is not intended to be, nor shall it
be construed to create,  a novation or accord and  satisfaction,  and, except as
otherwise  expressly  stated herein,  the Loan  Agreements  (including,  without
limitation,  Borrowers'  obligation  under the  Lockbox  Agreement  by and among
Borrowers and Lender) shall remain in full force and effect. Notwithstanding any
prior  mutual  temporary  disregard  of  any  of the  terms  of any of the  Loan
Agreements,  the  parties  agree  that the terms of each of the Loan  Agreements
shall be strictly  adhered to on and after the date hereof,  except as expressly
modified by this Amendment No. 4.

     18.  Miscellaneous.  This  Amendment No. 4 may be executed  inany number of
counterparts and by different parties hereto in separate  counterparts,  each of
which when so executed  shall  constitute  an  original,  but all of which taken
together shall be one and the same  instrument.  In enforcing this Amendment No.
4, it shall  not be  necessary  to  produce  or  account  for more than one such
counterpart  signed by the party against whom  enforcement is sought.  Notice of
Lender's acceptance hereof is hereby waived.

     19. Release of Claims. TO INDUCE LENDER TO ENTER INTO THIS AMENDMENT NO. 4,
BORROWERS  HEREBY RELEASE,  ACQUIT AND FOREVER  DISCHARGE  LENDER,  AND LENDER'S
OFFICERS, DIRECTORS, PROFESSIONALS,  AUCTIONEERS, APPRAISERS, ATTORNEYS, AGENTS,
EMPLOYEES,  SUCCESSORS  AND  ASSIGNS,  FROM ALL  LIABILITIES,  CLAIMS,  DEMANDS,
ACTIONS OR CAUSES OF ACTIONS OF ANY KIND (IF ANY THERE BE),  WHETHER ABSOLUTE OR
CONTINGENT,  DUE OR TO BECOME DUE, DISPUTED OR UNDISPUTED,  AT LAW OR IN EQUITY,
THAT THE  BORROWERS  NOW HAVE OR EVER HAD  AGAINST  LENDER  ARISING  UNDER OR IN
CONNECTION WITH ANY OF THE LOAN AGREEMENTS,

                                       8
                                                            Page 45 of 207 Pages

<PAGE>

THE FORBEARANCE AGREEMENT, AMENDMENT NO. 1, AMENDMENT NO. 2, AMENDMENT NO. 3 AND
THIS AMENDMENT NO. 4, THE PUBLIC AUCTION SALE OR OTHERWISE.

     20. Severability. Wherever possible, each provision of this Amendment No. 4
is to  be  interpreted  in  such  manner  as to be  effective  and  valid  under
applicable law, but if any provision of this Amendment No. 4 is to be prohibited
by or invalid under  applicable law, such provision is to be ineffective only to
the extent of such prohibition or invalidity, without invalidating the remainder
of such provision or the remaining provisions of this Amendment No. 4.

     21. Loan  Agreements.  This Amendment No. 4 shall be entitled to all of the
benefits of the Loan Agreements.

     22. Further  Representations.  The Borrowers  hereby  represent and warrant
that after the date hereof they will have the same principal  place of business,
DCI will  continue to do business in the same  location as it was doing prior to
the date hereof and will continue to use the names Delta Computec Inc. and Delta
Data Net,  Inc.,  unless it gives Lender prior written notice of any such change
in the manner provided for under the Loan Agreements.

     23. Notices.  The Borrowers hereby  acknowledge that all notices,  requests
and demands in  accordance  with the Loan  Agreements  and this  Amendment No. 4
shall be addressed to:

                           E. Lynn Forgosh, Group V.P.
                          National Canada Finance Corp.
                              125 West 55th Street
                          New York, New York 10019-5366

                              -- with a copy to --

                           Walter J. Greenhalgh, Esq.
                           Robinson, St. John & Wayne
                               Two Penn Plaza East
                          Newark, New Jersey 07105-2249

     Lender  hereby  acknowledges  that all  notices,  requests  and  demands in
accordance  with the Loan  Documents and this Amendment No. 4 shall be addressed
to:

                                    President
                              Delta Computec, Inc.
                                900 Huyler Street
                           Teterboro, New Jersey 07608
                           Telecopy No. (201) 440-3985
                                       9
                                                            Page 46 of 207 Pages
<PAGE>


                                       or


                                    President
                              Delta Data Net, Inc.
                                900 Huyler Street
                           Teterboro, New Jersey 07608
                           Telecopy No. (201) 440-3985

                              -- with a copy to --

                              Edwin M. Larkin, Esq.
                          Jaeckle, Fleischmann & Mugel
                           39 State Street, Suite 460
                         Rochester, New York 14614-1310
                           Telecopy No. (716) 262-4133

     IN WITNESS WHEREOF,  the parties hereto have caused this Amendment No. 4 to
be duly executed and delivered on the date first written above.

                                                     BORROWERS:

                                                     DELTA COMPUTEC INC.

ATTEST:                                              By: ______________________
                                                     Name: ____________________
                                                     Title: ___________________
By:_______________________
      [CORPORATE SEAL]

                                                     DELTA DATA NET, INC.

ATTEST:                                              By: ______________________
                                                     Name: ____________________
                                                     Title: ___________________
By:_____________________
      [CORPORATE SEAL]






                       (SIGNATURES CONTINUED ON NEXT PAGE)


                                       10
                                                            Page 47 of 207 Pages
<PAGE>


                                                  LENDER:

                                                  NATIONAL CANADA FINANCE CORP.


                                                   By:_______________________

                                                     E. Lynn Forgosh, Group V.P.

ATTEST:

By:_________________________
     [CORPORATE SEAL]


                                       11
                                                            Page 48 of 207 Pages


<PAGE>
       THIS DOCUMENT IS A COPY OF THE EXHIBIT FILED ON OCTOBER 24, 1996
             PURSUANT TO A RULE 201 TEMPORARY HARDSHIP EXEMPTION.

                               AMENDMENT NO. 5 TO
                              FORBEARANCE AGREEMENT

         THIS AMENDMENT NO. 5 TO FORBEARANCE AGREEMENT ("Amendment No.5") is
made and entered into as of August 15, 1996, by and between Delta Computec, Inc.
("DCI") and Delta Data Net, Inc. ("DDI"), (collectively, the "Borrowers") and
National Canada Finance Corp. ("Lender").

                              W I T N E S S E T H:

         WHEREAS, Lender and Borrowers entered into that certain Forbearance
Agreement dated March 8, 1996 ( the "Forbearance Agreement"), in which the
Lender agreed to forbear from exercising certain rights and remedies under its
Loan Documents and under applicable law against the Borrowers and their
properties, provided that certain conditions were met as more fully provided in
the Forbearance Agreement; and

         WHEREAS, Lender and Borrowers entered into Amendment No.1 to
Forbearance Agreement dated May 9, 1996 ( "Amendment No.1"), in which the Lender
agreed to forbear from exercising certain rights and remedies under its Loan
Documents and under applicable law against the Borrowers and their properties
and to extend the term of the Forbearance Period as more fully set forth in the
Forbearance Agreement from May 8, 1996 to May 22, 1996, provided that certain
conditions were met as more fully provided in the Amendment No.1; and

         WHEREAS, Lender and Borrowers entered into Amendment No.2 to
Forbearance Agreement dated May 23, 1996 (" Amendment No.2"), in which the
Lender agreed to forbear from exercising certain rights and remedies under its
Loan Documents and under applicable law against the Borrowers and their
properties and to extend the term of the Forbearance Period as more fully set
forth in the Forbearance Agreement from May 22, 1996 to June 14, 1996, provided
that certain conditions were met as more fully provided in the Amendment No.2;
and

         WHEREAS, Lender and Borrowers entered into Amendment No. 3 to
Forbearance Agreement dated June 14, 1996, ("Amendment No. 3"), in which the
Lender agreed to forbear from exercising certain rights and remedies under its
Loan Documents and under applicable law against the Borrowers and their
properties and to extend the term of the Forbearance Period as more fully set
forth in the Forbearance Agreement from June 14, 1996 to July 31, 1996, provided
that certain conditions were met as more fully provided in the

                                                            Page 49 of 207 Pages
<PAGE>



Amendment No. 3; and

         WHEREAS, Lender and Borrowers entered into Amendment No. 4 to

Forbearance Agreement dated July 31, 1996, ("Amendment No. 4"), in which the
Lender agreed to forbear from exercising certain rights and remedies under its
Loan Documents and under applicable law against the Borrowers and their
properties and to extend the term of the Forbearance Period as more fully set
forth in the Forbearance Agreement from July 31, 1996 to August 15, 1996,
provided that certain conditions were met as more fully provided in the
Amendment No. 4; and

          WHEREAS, the Lender has agreed to extend the term of the Forbearance
Period as more fully set forth in the Forbearance Agreement from August 15,
1996, to September 30, 1996 provided that the Borrowers comply with all terms
and conditions of the Forbearance Agreement, Amendment No.1, Amendment No.2,
Amendment No.3, Amendment No.4, and this Amendment No. 5; and

         WHEREAS, on March 8, 1996, DDI terminated its business operations and
closed its business facility located at 900 Huyler Street,

Teterboro, New Jersey 07608, which action constituted an Event of Default under
the Loan Agreements; and

         WHEREAS, DDI peaceably turned over to Lender on March 11, 1996, the DDI
Collateral, except the DDI accounts receivable; which DDI Collateral was sold at
public auction sale pursuant to the Uniform Commercial Code on April 9, 1996
(the "Public Auction Sale"); and

         WHEREAS, DCI and DDI remain jointly and severally liable to Lender for
any deficiency following the Public Auction Sale of the DDI Collateral in
accordance with the Loan Documents and applicable law; and

         WHEREAS, all Loans made by Lender to Borrowers, and all other
liabilities and obligations at any time or time owing by Borrowers to Lender,
continue to be secured by security interests granted by Borrowers to Lender in
all of Borrowers' then existing and thereafter acquired accounts, inventory,
equipment, general intangibles, chattel paper, contract rights, instruments and
balances, as more full set forth in the Loan Agreements; and

                                                            Page 50 of 207 Pages
<PAGE>



         WHEREAS, the Guarantor by separate Guaranty Agreement, continues to
unconditionally guarantee payment to Lender of certain liabilities at any time
owing by Borrowers to Lender under the Loan Agreements, or otherwise, as more
fully set forth in the Guaranty Agreement; and

         WHEREAS, there exists continuing defaults under the Loan Agreements;
and

         WHEREAS, Borrowers desire that Lender continue to forebear from
exercising certain remedies available to Lender under the Loan Agreements, the
Forbearance Agreement and applicable law;

         WHEREAS, Borrowers and the Guarantor desire that Lender continue,

during the Forbearance Period to make Loans to DCI pursuant to the Loan
Agreements, as modified hereby;

         WHEREAS, Lender is willing to continue to forbear, in accordance with
the terms of the Forbearance Agreement, Amendment No. 1, Amendment No. 2,
Amendment No. 3, Amendment No. 4, and this Amendment No. 5. from exercising
remedies available to it as a result of the continuing defaults under the Loan
Agreements, and to continue making Loans consistent with this Amendment No. 5,
Amendment No. 4, Amendment No. 3, Amendment No.2, Amendment No. 1, and the
Forbearance Agreement, but only on the terms and conditions contained herein;

         WHEREAS, all capitalized terms used in this Amendment No. 5, unless
otherwise defined, shall have the meaning ascribed to such terms in the
Forbearance Agreement and the Loan Agreements; and

         NOW, THEREFORE FOR TEN DOLLARS ($10.00) in hand paid and in
consideration of the premises and the mutual covenants herein contained, the
parties hereto, intending to be legally bound hereby, agree as follows:

         1. Definitions:

                  "Forbearance Period" shall mean the period commencing on
         September 3, 1996 and ending at the close of business on September 30,
         1996, provided, however, that the foregoing date may be extended to a
         later date by written agreement of the Lender, in its sole and absolute
         discretion.

                                                            Page 51 of 207 Pages
<PAGE>



         2. Acknowledgments and Stipulations by Borrowers. The Borrowers
acknowledge, stipulate and agree that:

         (a) as of the opening of business on August 15, 1996, the Indebtedness
is $ 1,635,559 exclusive of interest, costs and attorneys' fees chargeable to
Borrowers under the Loan Agreements;

         (b) all of the Indebtedness is absolutely due and owing by Borrowers to
Lender without any defense, deduction, offset or counterclaim;

         (c) the following Events of Default have occurred and are continuing
under the Loan Agreements;

                  (i) The cessation of the business operations by DDI;

                  (ii) Borrowers are not in compliance with the following
financial covenants contained in the Credit Agreement as follows: Section 6.17-
Tangible Net Worth; Section 6.18 -Debt-to-Tangible Net Worth; Section 6.19-
Working Capital Ratio; Section 6.20 - Pre-Tax Income; and Section 6.21-Interest
Coverage Ratio.

         (d) the Lender does not waive as to Borrowers any unknown or

unenumerated Event of Default which exists under the Loan Agreements;

         (e) each of the Loan Agreements, the Forbearance Agreement, Amendment
No. 1, Amendment No. 2, Amendment No. 3, Amendment No. 4, and this Amendment No.
5 executed by Borrowers are legal, valid and binding obligations of Borrowers,
enforceable against Borrowers in accordance with their respective terms;

         (f) the security interest granted by Borrowers to Lender in the
Collateral is a duly perfected, first priority security interest; and

         (g) Lender shall be permitted in its sole and absolute discretion to
apply the proceeds from the DDI Collateral to the Indebtedness.

         3. Agreement to Forebear. Provided that no Termination Event has
occurred, Lender agrees that during the Forbearance Period it will not, solely
by reason of the existence on this date of the Events of Default referenced in
Section 2 of this Amendment No. 5, exercise any default remedy available to
Lender under the Loan Agreements to enforce collection from DCI of any of the
Indebtedness or to foreclose its security interest in any of the Collateral
during

                                                            Page 52 of 207 Pages
<PAGE>



the Forbearance Period except with regards to the Collateral owned by DDI.
Neither this Amendment No. 5 nor Lender's forbearance hereunder shall be deemed
to be a waiver of or a consent to the Events of Default referenced in Section 2
of this Amendment No. 5.

         4. Termination of Forbearance. If any one or more of the Termination
Events occur, Lender's agreement to forbear as set forth in Section 3 of this
Amendment No. 5 shall, at Lender's election, upon written notice to or demand
upon Borrowers (it being agreed by the parties that such notice may be delivered
by facsimile with a copy to Borrowers' counsel), terminate and Lender shall
thereupon have and may exercise from time to time all of the remedies available
to it under the Loan Agreements and applicable law as a consequence of an Event
of Default, without further notice, demand or presentment.

         5. Loans. During the Forbearance Period, Borrowers may request, and
Lender, in its sole and absolute discretion, may make Loans to DCI in an
aggregate amount (when added to all then outstanding Loans, whether made prior
to or during the Forbearance Period) not to exceed the Maximum Loan Amount. The
Maximum Loan Amount shall mean the lesser of:

                  (a) (1) Eighty Percent (80%) of DCI's Eligible Receivables on
                  service contracts that are based on a billing schedule of no
                  greater than ninety (90) days;

                           (2) Eighty Percent (80%) of DCI's Eligible
                  Receivables on service contracts which do not exceed $25,000
                  and that are based on a billing schedule of in excess of
                  ninety (90) days but no greater than one year;


                           (3) Eighty Percent (80%) of DDI's Eligible
                  Receivables on service contracts that are based on a billing
                  schedule of no greater than ninety (90) days;

                           (4) Eighty Percent (80%) of DDI's Eligible
                  Receivables on service contracts which do not exceed $25,000
                  and that are based on a billing schedule of in excess of
                  ninety (90) days but no greater than one year;

                           (5) Fifty Percent (50%) of DCI's Eligible Receivables
                  on service contracts which exceed $25,000 and that are based
                  on a billing schedule of in excess of ninety (90) days but no
                  greater than one hundred eighty (180) days;

                           (6) Twenty-five Percent (25%) of DCI's Eligible
                  Receivables on service contracts which exceed $25,000

                                                            Page 53 of 207 Pages
<PAGE>



                  and that are based on a billing schedule of in excess of one
                  hundred eighty (180) days but no greater than one year; and

                           (7) $300,000; less

                           (8) Outstanding Letter of Credit Obligations; or

                  (b) Two Million Seven Hundred Thousand Dollars ($2,700,000),
                  including Letter of Credit Obligations, in the aggregate at
                  any one time outstanding, provided Lender obtains a loan
                  participant in an amount not less than Six Hundred Thousand
                  Dollars ($600,000). In the event that Lender does not obtain a
                  Loan participant in an amount not less than Six Hundred
                  Thousand Dollars ($600,000), than the Maximum Loan Amount
                  shall not exceed Two Million One Hundred Thousand Dollars
                  ($2,100,000), including Letter of Credit Obligations, in the
                  aggregate at any one time outstanding.

Notwithstanding the foregoing provision and any other provision contained in the
Loan Agreements or any course of dealing or conduct between Lender and Borrowers
prior to the date hereof, Lender shall have no obligation to make further Loans
to DCI; Lender may make, or refuse to make, Loans to DCI, in its discretion in
each instance; and Lender reserves the right to make Loans in excess of the
Maximum Loan Amount.

                  All Loans made during the Forbearance Period shall be payable
on demand, and shall be entitled to all benefits and protections and secured in
the same manner and to the same extent as Loans made prior to the date hereof.
All Loans made during the Forbearance Period shall bear interest as provided in
the Loan Agreements.


                  All payments of Receivables must be credited through a lock
box arrangement through Lender's offices which shall be held by Lender as
collateral for payment and/or performance of Borrowers' Obligations to Lender.

         6. No Further Commitments by Lender. Borrowers further acknowledge and
agree that the Lender has no existing commitments, obligations or agreements to
make Loans or to make other loans, to issue letters of credit, or to extend
other financial accommodations to Borrowers, except the parties have agreed that
during the Forbearance Period they will negotiate in good faith to restructure
the debt of DCI to the Lender.

         7. Reaffirmation of Loan Agreements. The Borrowers reaffirm and

                                                            Page 54 of 207 Pages
<PAGE>



agree that all of the Loan Agreements are fully enforceable and in full force
and effect and have not been waived or modified in any manner except as
expressly set forth in the Forbearance Agreement, Amendment No. 1, Amendment No.
2, Amendment No. 3, Amendment No. 4, and this Amendment No. 5 and that the Loan
Agreements, as modified by this Amendment No. 5, are fully enforceable and in
full force and effect on the date of this Amendment No.5.

         8. Application of Payments and Collections. Borrowers hereby waive the
right, if any, to direct the manner in which Lender applies any payments or
collections to the Indebtedness and agrees that Lender may apply and reapply all
such payments to the Indebtedness as Lender in its sole and absolute discretion
elects from time to time.

         9. Representations and Warranties of Borrowers. Borrowers represent and
warrant that (a) no Event of Default exists under the Loan Agreements, except
for Events of Default identified in Section 2 of this Amendment No. 5 that are
in existence on the date hereof; (b) subject to the existence of the Events of
Default specified in Section 2 of this Amendment No. 5, the representations and
warranties of Borrowers contained in the Loan Agreements were true and correct
in all material respects on the date hereof; (c) the execution, delivery and
performance by Borrowers of this Amendment No.5 and the consummation of the
transactions contemplated hereby are within the power of Borrowers and have been
duly authorized by all necessary corporate action on the part of the Borrowers,
do not require any approval or consent, or filing with, any governmental agency
or authority or any person, do not violate any provisions of any law, rule or
regulation or any provision of any order, writ, judgment, injunction, decree,
determination or award presently in effect in which Borrowers are named or any
provision of the charter documents of Borrowers and do not result in a breach of
or constitute a default under any agreement or instrument to which Borrowers are
a party or by which they or any of their properties are bound; (d) this
Amendment No. 5 constitutes the legal, valid and binding obligation of
Borrowers, enforceable against Borrowers in accordance with its terms; (e) the
Borrowers are entering into this Amendment No. 5 freely and voluntarily with the
advice of legal counsel of their own choosing; (f) the Borrowers have freely and
voluntarily agreed to the releases, waivers and undertakings set forth in this
Amendment No. 5; (g) the Public Auction Sale and all efforts taken by the

Lender, its agents, employees and attorneys to notice, conduct and conclude the
Public Auction Sale were proper by the Lender, its agents, employees and
attorneys and were performed in a commercially reasonable manner as provided for
in the Uniform Commercial Code and the Borrowers freely and voluntarily release
and waive any claims against the

                                                            Page 55 of 207 Pages
<PAGE>



Lender, its agents, employees and attorneys for any actions or undertakings in
connection with the Public Auction Sale; and (h) irrespective of the fact that
the financial projections dated April 12, 1996, for the two (2) years ending
October 31, 1997, prepared by the Borrowers, indicate loans in excess of the
Maximum Loan Amount are required by the Borrowers, Borrowers acknowledge that
the Maximum Loan Amount will not be exceeded.

         10. Covenants of the Borrowers. In addition to each of the covenants
set forth in the Loan Agreements, the Borrowers have, or will:

         (a) duly and punctually observe, perform and discharge each and every
obligation and covenant on their parts to be performed under this Amendment No.
5;

         (b) deliver to the Lender, each of which shall be satisfactory in form
and substance to Lender:

                  (I) Release and Indemnification Agreement by the Borrowers;

                  (ii) A signed consent from Joseph M. Lobozzo, II agreeing to
         and acknowledging to the delivery and execution of Amendment No. 5 and
         a Reaffirmation of Subordination;

                  (iii) A signed Reaffirmation of Guaranty by SAI/Delta, Inc.;

                  (iv) Certified copies (certified by authorized officers of
         Borrowers) of a corporate resolution taken by Borrowers to authorize
         the execution, delivery and performance of this Amendment No. 5;

                  (v) Certificates of incumbency and specimen signatures with
         respect to each of the officers of Borrowers who are authorized to
         execute and deliver this Amendment No. 5 and the Loan Agreements. ;

                  (vi) Certified Consolidated Financial Statements for the
         Borrowers prepared in accordance with Generally Accepted Accounting
         Principals for the fiscal year ending October 31, 1995, which shall be
         delivered to Lender so as to be received no later than September 30,
         1996;

                                                            Page 56 of 207 Pages
<PAGE>




         (c) have executed and delivered this Amendment No. 5;

         (d) Borrowers shall from March 1, 1996, collect at least Eighty Percent
(80%) of the projected accounts receivable as set forth on page DDN-6 of the
annexed Exhibit "A", all as set forth on page DDN-6, identified in each instance
as a page from the Delta Data Net, Inc. Financial Projections for the two years
ended October 31, 1997; and

         (e) Borrowers shall have paid all fees and expenses of Lender's counsel
incurred in the preparation, negotiation, execution, delivery and administration
of this Amendment No.5.

         11. Termination. In the event the Lender shall terminate this Amendment
No. 5, DCI agrees that, at the option of Lender, it shall commence a voluntary
liquidation of its entire business. This provision is in addition to any of the
other rights and remedies available to the Lender under the Loan Agreements.

         12. Bankruptcy. In the event either of the Borrowers files for
bankruptcy relief under 11 U.S.C. Section 101 et seq. or an involuntary petition
is filed against either of the Borrowers, then in such event, Borrowers agree
that they will consent to granting Lender relief from the automatic stay
provided for under 11 U.S.C. Section 362 and Borrowers shall not seek to
restrain, enjoin or otherwise interfere with Lender's rights pursuant to 11
U.S.C. Section 105 or any other Federal or State statute. Borrowers will consent
to any Order or execute any document necessary for Lender to obtain the relief
provided for herein.

         13. Relationship of Parties; No Third Party Beneficiaries. Nothing in
this Amendment No. 5 shall be construed to alter the existing borrower-creditor
relationship between Borrowers and Lender, nor is this Amendment No. 5 intended
to change or affect in any way the relationship. This Amendment No. 5 is not
intended, nor shall it be construed to create, a partnership or joint venture
relationship between or among any of the parties hereto. No person or entity
other than a party hereto is intended to be a beneficiary hereof and no person
or entity other than a party hereto shall be authorized to rely upon the
contents of this Amendment No. 5.

         14. Entire Agreement; Modification of Agreement. This Amendment No. 5,
Amendment No. 1, Amendment No. 2, Amendment No. 3, Amendment No. 4, the
Forbearance Agreement and the other Loan Agreements constitute the entire
understanding of the parties with respect to the subject matter hereof and
thereof. This Amendment No. 5 may not be modified, altered or amended except by
agreement in writing signed by all the parties hereto.

                                                            Page 57 of 207 Pages
<PAGE>



         15. Governing Law. This Amendment No. 5 shall be governed by and
construed in accordance with the law of the State of New York.

         16. Non-Waiver of Default. Neither this Amendment No. 5, Lender's

forbearance hereunder nor Lender's continued making of Loans to DCI in
accordance with this Amendment No. 5 shall be deemed a waiver of or consent to
the Events of Default referenced in Section 2 of this Amendment No. 5. Borrowers
agree that such Events of Default shall not be deemed to have been waived,
released or cured by virtue of such Loans, Lender's agreement to forbear
pursuant to the terms of this Amendment No. 5 or the execution of this Amendment
No. 5.

         17. No Novation. This Amendment No. 5 is not intended to be, nor shall
it be construed to create, a novation or accord and satisfaction, and, except as
otherwise expressly stated herein, the Loan Agreements (including, without
limitation, Borrowers' obligation under the Lockbox Agreement by and among
Borrowers and Lender) shall remain in full force and effect. Notwithstanding any
prior mutual temporary disregard of any of the terms of any of the Loan
Agreements, the parties agree that the terms of each of the Loan Agreements
shall be strictly adhered to on and after the date hereof, except as expressly
modified by this Amendment No. 5.

         18. Miscellaneous. This Amendment No. 5 may be executed in any number
of counterparts and by different parties hereto in separate counterparts, each
of which when so executed shall constitute an original, but all of which taken
together shall be one and the same instrument. In enforcing this Amendment No.5,
it shall not be necessary to produce or account for more than one such
counterpart signed by the party against whom enforcement is sought. Notice of
Lender's acceptance hereof is hereby waived.

         19. Release of Claims. TO INDUCE LENDER TO ENTER INTO THIS AMENDMENT
NO. 5, BORROWERS HEREBY RELEASE, ACQUIT AND FOREVER DISCHARGE LENDER, AND
LENDER'S OFFICERS, DIRECTORS, PROFESSIONALS, AUCTIONEERS, APPRAISERS, ATTORNEYS,
AGENTS, EMPLOYEES, SUCCESSORS AND ASSIGNS, FROM ALL LIABILITIES, CLAIMS,
DEMANDS, ACTIONS OR CAUSES OF ACTIONS OF ANY KIND (IF ANY THERE BE), WHETHER
ABSOLUTE OR CONTINGENT, DUE OR TO BECOME DUE, DISPUTED OR UNDISPUTED, AT LAW OR
IN EQUITY, THAT THE BORROWERS NOW HAVE OR EVER HAD AGAINST LENDER ARISING UNDER
OR IN CONNECTION WITH ANY OF THE LOAN AGREEMENTS, THE FORBEARANCE AGREEMENT,
AMENDMENT NO. 1, AMENDMENT NO. 2, AMENDMENT NO. 3, AMENDMENT NO. 4, AND THIS
AMENDMENT NO. 5 THE PUBLIC AUCTION SALE OR OTHERWISE.

                                                            Page 58 of 207 Pages
<PAGE>



         20. Severability. Wherever possible, each provision of this Amendment
No.5 is to be interpreted in such manner as to be effective and valid under
applicable law, but if any provision of this Amendment No.5 is to be prohibited
by or invalid under applicable law, such provision is to be ineffective only to
the extent of such prohibition or invalidity, without invalidating the remainder
of such provision or the remaining provisions of this Amendment No. 5.

         21. Loan Agreements. This Amendment No. 5 shall be entitled to all of
the benefits of the Loan Agreements.

         22. Further Representations. The Borrowers hereby represent and warrant
that after the date hereof they will have the same principal place of business,

DCI will continue to do business in the same location as it was doing prior to
the date hereof and will continue to use the names Delta Computec Inc. and Delta
Data Net, Inc., unless it gives Lender prior written notice of any such change
in the manner provided for under the Loan Agreements.

         23. Notices. The Borrowers hereby acknowledge that all notices,
requests and demands in accordance with the Loan Agreements and this Amendment
No.5 shall be addressed to Lender as follows:

                           E. Lynn Forgosh, Group V.P.
                          National Canada Finance Corp.
                              125 West 55th Street
                          New York, New York 10019-5366

                              -- with a copy to --

                           Walter J. Greenhalgh, Esq.
                            Duane, Morris & Heckscher
                           The Legal Center, Suite 500
                             1037 Raymond Boulevard
                            Newark, New Jersey 07102

         Lender hereby acknowledges that all notices, requests and demands in
accordance with the Loan Documents and this Amendment No. 5 shall be addressed
to Borrowers as follows:

                                                            Page 59 of 207 Pages
<PAGE>


                                    President
                              Delta Computec, Inc.
                                900 Huyler Street
                           Teterboro, New Jersey 07608
                           Telecopy No. (201) 440-3985

                                       or

                                    President
                              Delta Data Net, Inc.
                                900 Huyler Street
                           Teterboro, New Jersey 07608
                           Telecopy No. (201) 440-3985

                              -- with a copy to --

                              Edwin M. Larkin, Esq.
                          Jaeckle, Fleischmann & Mugel
                           39 State Street, Suite 460
                         Rochester, New York 14614-1310
                           Telecopy No. (716) 262-4133

         IN WITNESS WHEREOF, the parties hereto have caused this Amendment No. 5
to be duly executed and delivered on the year and day first written above.


                                   BORROWERS:

                                   DELTA COMPUTEC INC.

ATTEST:                            By: ______________________
                                   Name: ____________________
                                   Title: _____________________
By:_______________________
      [CORPORATE SEAL]

                                    DELTA DATA NET, INC.

ATTEST:                             By: ______________________
                                    Name: ____________________
                                    Title: _____________________
By:________________________
      [CORPORATE SEAL]

                                                            Page 60 of 207 Pages
<PAGE>

                       (SIGNATURES CONTINUED ON NEXT PAGE)

                                                            Page 61 of 207 Pages
<PAGE>



                                    LENDER:

                                    NATIONAL CANADA FINANCE CORP.

                                    By: ______________________________
                                        E. Lynn Forgosh, Group V.P.
ATTEST:

By:_________________________
      [CORPORATE SEAL]

                                                            Page 62 of 207 Pages


<PAGE>
       THIS DOCUMENT IS A COPY OF THE EXHIBIT FILED ON OCTOBER 24, 1996
             PURSUANT TO A RULE 201 TEMPORARY HARDSHIP EXEMPTION.

                               AMENDMENT NO. 6 TO
                              FORBEARANCE AGREEMENT

     THIS AMENDMENT NO. 6 TO FORBEARANCE  AGREEMENT  ("Amendment No. 6") is made
and entered into as of September 9, 1996,  by and between Delta  Computec,  Inc.
("DCI") and Delta Data Net, Inc.  ("DDI"),  (collectively,  the "Borrowers") and
National Canada Finance Corp. ("Lender").

                              W I T N E S S E T H:

     WHEREAS,  Lender  and  Borrowers  entered  into  that  certain  Forbearance
Agreement  dated  March 8,  1996 ( the  "Forbearance  Agreement"),  in which the
Lender agreed to forbear from  exercising  certain rights and remedies under its
Loan  Documents  and  under  applicable  law  against  the  Borrowers  and their
properties,  provided that certain conditions were met as more fully provided in
the Forbearance Agreement; and

     WHEREAS,  Lender and Borrowers  entered into  Amendment No.1 to Forbearance
Agreement dated May 9, 1996 ( "Amendment  No.1"),  in which the Lender agreed to
forbear from exercising certain rights and remedies under its Loan Documents and
under  applicable  law against the Borrowers and their  properties and to extend
the term of the  Forbearance  Period as more fully set forth in the  Forbearance
Agreement  from May 8, 1996 to May 22, 1996,  provided  that certain  conditions
were met as more fully provided in the Amendment No.1; and

     WHEREAS,  Lender and Borrowers  entered into  Amendment No.2 to Forbearance
Agreement dated May 23, 1996 (" Amendment  No.2"), in which the Lender agreed to
forbear from exercising certain rights and remedies under its Loan Documents and
under  applicable  law against the Borrowers and their  properties and to extend
the term of the  Forbearance  Period as more fully set forth in the  Forbearance
Agreement from May 22, 1996 to June 14, 1996,  provided that certain  conditions
were met as more fully provided in the Amendment No.2; and

         WHEREAS,   Lender  and  Borrowers  entered  into  Amendment  No.  3  to
Forbearance  Agreement  dated June 14, 1996,  ("Amendment  No. 3"), in which the
Lender agreed to forbear from  exercising  certain rights and remedies under its
Loan  Documents  and  under  applicable  law  against  the  Borrowers  and their
properties  and to extend the term of the  Forbearance  Period as more fully set
forth in the Forbearance Agreement from June 14, 1996 to July 31, 1996, provided
that certain  conditions were met as more fully provided in the Amendment No. 3;
and

         WHEREAS,   Lender  and  Borrowers  entered  into  Amendment  No.  4  to
Forbearance  Agreement  dated July 31, 1996,  ("Amendment  No. 4"), in which the
Lender agreed to forbear from  exercising  certain rights and remedies under its
Loan  Documents  and  under  applicable  law  against  the  Borrowers  and their
properties  and to extend the term of the  Forbearance  Period as more fully set
forth in the  Forbearance  Agreement  from  July 31,  1996 to August  15,  1996,
provided  that  certain  conditions  were  met as  more  fully  provided  in the
Amendment No. 4; and


                                                            Page 63 of 207 Pages
<PAGE>


     WHEREAS,  Lender and Borrowers  entered into Amendment No. 5 to Forbearance
Agreement dated August 15, 1996, ("Amendment No. 5"), in which the Lender agreed
to forbear from exercising  certain rights and remedies under its Loan Documents
and under  applicable  law against the  Borrowers  and their  properties  and to
extend  the  term of the  Forbearance  Period  as more  fully  set  forth in the
Forbearance  Agreement from August 15, 1996 to September 3, 1996,  provided that
certain conditions were met as more fully provided in the Amendment No. 5; and

     WHEREAS, the Lender has agreed to extend the term of the Forbearance Period
as more fully set forth in the  Forbearance  Agreement from September 3, 1996 to
September  30,  1996  provided  that the  Borrowers  comply  with all  terms and
conditions  of the  Forbearance  Agreement,  Amendment  No. 1,  Amendment No. 2,
Amendment No. 3, Amendment No. 4, Amendment No. 5 and this Amendment No. 6; and

     WHEREAS,  on March 8, 1996,  DDI  terminated  its business  operations  and
closed its business facility located at 900 Huyler Street, Teterboro, New Jersey
07608,  which action  constituted an Event of Default under the Loan Agreements;
and

     WHEREAS,  DDI  peaceably  turned over to Lender on March 11, 1996,  the DDI
Collateral, except the DDI accounts receivable; which DDI Collateral was sold at
public  auction sale  pursuant to the Uniform  Commercial  Code on April 9, 1996
(the "Public Auction Sale"); and

     WHEREAS,  DCI and DDI remain jointly and severally liable to Lender for any
deficiency following the Public Auction Sale of the DDI Collateral in accordance
with the Loan Documents and applicable law; and

     WHEREAS,  all Loans made by Lender to Borrowers,  and all other liabilities
and obligations at any time or time owing by Borrowers to Lender, continue to be
secured  by  security  interests  granted  by  Borrowers  to  Lender  in  all of
Borrowers' then existing and thereafter acquired accounts, inventory, equipment,
general intangibles,  chattel paper, contract rights,  instruments and balances,
as more full set forth in the Loan Agreements; and

     WHEREAS,  the  Guarantor  by  separate  Guaranty  Agreement,  continues  to
unconditionally  guarantee payment to Lender of certain  liabilities at any time
owing by Borrowers to Lender under the Loan  Agreements,  or otherwise,  as more
fully set forth in the Guaranty Agreement; and

     WHEREAS, there exists continuing defaults under the Loan Agreements; and

     WHEREAS,  Borrowers desire that Lender continue to forebear from exercising
certain remedies available to Lender under the Loan Agreements,  the Forbearance
Agreement and applicable law;

     WHEREAS,  Borrowers and the Guarantor desire that Lender  continue,  during
the Forbearance Period to make Loans to DCI pursuant to the Loan Agreements,  as
modified hereby;


                                       2
                                                            Page 64 of 207 Pages
<PAGE>


     WHEREAS,  Lender is willing to continue to forbear,  in accordance with the
terms of the Forbearance Agreement,  Amendment No. 1, Amendment No. 2, Amendment
No.  3,  Amendment  No.  4,  Amendment  No. 5 and this  Amendment  No.  6,  from
exercising remedies available to it as a result of the continuing defaults under
the Loan Agreements,  and to continue making Loans consistent with Amendment No.
1,  Amendment No. 2,  Amendment No. 3, Amendment No. 4, Amendment No. 5 and this
Amendment  No.  6 and the  Forbearance  Agreement,  but  only on the  terms  and
conditions contained herein;

     WHEREAS,  Lender and Borrowers have negotiated a restructuring of the Loans
and Loan Documents, which restructuring is to occur no latter than September 30,
1996, unless extended by Lender in writing, the general terms of which are to be
set forth in a Term Sheet the provisions of which are currently being negotiated
between the parties,,  said restructuring to occur only in the sole and absolute
discretion of Lender and subject to proper  documents  satisfactory to Lender in
its sole and absolute discretion; and

     WHEREAS,  all  capitalized  terms  used in this  Amendment  No.  6,  unless
otherwise  defined,  shall  have  the  meaning  ascribed  to such  terms  in the
Forbearance Agreement and the Loan Agreements; and

         NOW,   THEREFORE  FOR  TEN  DOLLARS   ($10.00)  in  hand  paid  and  in
consideration  of the premises and the mutual covenants  herein  contained,  the
parties hereto, intending to be legally bound hereby, agree as follows:

     1.   Definitions:

          "Forbearance  Period" shall mean the period commencing on September 3,
     1996 and ending at the close of business on September  30, 1996,  provided,
     however, that the foregoing date may be extended to a later date by written
     agreement of the Lender, in its sole and absolute discretion.

     2.   Acknowledgments   and   Stipulations   by  Borrowers.   The  Borrowers
acknowledge, stipulate and agree that:

          (a)  as  of  the  opening  of  business  on  September  9,  1996,  the
     Indebtedness is $1,855,000.00  exclusive of interest,  costs and attorneys'
     fees chargeable to Borrowers under the Loan Agreements;

          (b) all of the  Indebtedness  is absolutely due and owing by Borrowers
     to Lender without any defense, deduction, offset or counterclaim;

          (c) the following  Events of Default have occurred and are  continuing
     under the Loan Agreements;

          (i) The cessation of the business operations by DDI;

                                       3

                                                            Page 65 of 207 Pages
<PAGE>


          (ii)  Borrowers  are not in compliance  with the  following  financial
     covenants  contained  in the Credit  Agreement  as follows:  Section  6.17-
     Tangible Net Worth; Section 6.18 -Debt-to-Tangible Net Worth; Section 6.19-
     Working  Capital  Ratio;   Section  6.20  -  Pre-Tax  Income;  and  Section
     6.21-Interest Coverage Ratio.

     (d) the Lender does not waive as to Borrowers  any unknown or  unenumerated
Event of Default which exists under the Loan Agreements;

     (e) each of the Loan Agreements,  the Forbearance Agreement,  Amendment No.
1,  Amendment No. 2,  Amendment No. 3, Amendment No. 4, Amendment No. 5 and this
Amendment No. 6 executed by Borrowers are legal,  valid and binding  obligations
of Borrowers,  enforceable against Borrowers in accordance with their respective
terms;

     (f) the security  interest granted by Borrowers to Lender in the Collateral
is a duly perfected, first priority security interest; and

     (g) Lender shall be permitted in its sole and absolute  discretion to apply
the proceeds from the DDI Collateral to the Indebtedness.

     3. Agreement to Forebear.  Provided that no Termination Event has occurred,
Lender agrees that during the  Forbearance  Period it will not, solely by reason
of the  existence on this date of the Events of Default  referenced in Section 2
of this Amendment No. 6, exercise any default  remedy  available to Lender under
the Loan Agreements to enforce collection from DCI of any of the Indebtedness or
to  foreclose  its  security  interest  in  any  of the  Collateral  during  the
Forbearance  Period except with regards to the Collateral  owned by DDI. Neither
this Amendment No. 6 nor Lender's forbearance  hereunder shall be deemed to be a
waiver of or a consent to the Events of Default  referenced in Section 2 of this
Amendment No. 6.

     4. Termination of Forbearance. If any one or more of the Termination Events
occur, Lender's agreement to forbear as set forth in Section 3 of this Amendment
No. 6 shall,  at  Lender's  election,  upon  written  notice to or  demand  upon
Borrowers  (it being  agreed by the parties that such notice may be delivered by
facsimile  with a copy  to  Borrowers'  counsel),  terminate  and  Lender  shall
thereupon have and may exercise from time to time all of the remedies  available
to it under the Loan  Agreements and applicable law as a consequence of an Event
of Default, without further notice, demand or presentment.

     5. Loans. During the Forbearance Period, Borrowers may request, and Lender,
in its sole and  absolute  discretion,  may  make  Loans to DCI in an  aggregate
amount  (when  added to all then  outstanding  Loans,  whether  made prior to or
during the  Forbearance  Period)  not to exceed the  Maximum  Loan  Amount.  The
Maximum Loan Amount shall mean the lesser of:

(a)  (1)  Eighty  Percent  (80%)  of  DCI's  Eligible   Receivables  on  service
          contracts  that are based on a billing  schedule  of no  greater  than
          ninety (90) days;


                                       4
                                                            Page 66 of 207 Pages
<PAGE>


     (2)  Eighty  Percent  (80%)  of  DCI's  Eligible   Receivables  on  service
          contracts  which do not exceed $25,000 and that are based on a billing
          schedule  of in  excess of ninety  (90) days but no  greater  than one
          year;

     (3)  Eighty  Percent  (80%)  of  DDI's  Eligible   Receivables  on  service
          contracts  that are based on a billing  schedule  of no  greater  than
          ninety (90) days;
                                    
     (4)  Eighty  Percent  (80%)  of  DDI's  Eligible   Receivables  on  service
          contracts  which do not exceed $25,000 and that are based on a billing
          schedule  of in  excess of ninety  (90) days but no  greater  than one
          year;
                                   
     (5)  Fifty Percent (50%) of DCI's Eligible Receivables on service contracts
          which  exceed  $25,000 and that are based on a billing  schedule of in
          excess of ninety  (90) days but no  greater  than one  hundred  eighty
          (180) days;
                                 
     (6)  Twenty-five  Percent (25%) of DCI's  Eligible  Receivables  on service
          contracts  which  exceed  $25,000  and  that are  based  on a  billing
          schedule of in excess of one hundred  eighty (180) days but no greater
          than one year; and
                  
     (7)  $300,000; less
                               
     (8)  Outstanding Letter of Credit Obligations; or

(b)  One  Million  Eight  Hundred  Fifty  Five  Thousand  Dollars  ($1,855,000),
     including  Letter of Credit  Obligations,  in the aggregate at any one time
     outstanding,  until  such time as the Term Sheet has been  agreed  upon and
     duly signed by the Lender,  Borrowers and Joseph M.  LoBozzo,  II then upon
     the  execution of the Term Sheet this amount shall  increase to Two Million
     Two  Hundred  Thousand  Dollars  ($2,200,000),  including  Letter of Credit
     Obligations, in the aggregate at any one time outstanding.

Notwithstanding the foregoing provision and any other provision contained in the
Loan Agreements or any course of dealing or conduct between Lender and Borrowers
prior to the date hereof,  Lender shall have no obligation to make further Loans
to DCI;  Lender may make, or refuse to make,  Loans to DCI, in its discretion in
each  instance;  and  Lender  reserves  the right to make Loans in excess of the
Maximum Loan Amount.

     All Loans made during the  Forbearance  Period  shall be payable on demand,
and shall be entitled to all  benefits and  protections  and secured in the same
manner and to the same extent as Loans made prior to the date hereof.  All Loans
made during the  Forbearance  Period shall bear interest as provided in the Loan
Agreements.


     All payments of Receivables must be credited through a lock box arrangement
through Lender's offices which shall be held by Lender as collateral for payment
and/or performance of Borrowers' Obligations to Lender.

     6. No Further  Commitments by Lender.  Borrowers  further  acknowledge  and
agree that the Lender has no existing commitments,  obligations or agreements to
make  Loans or to make other  loans,  to issue  letters of credit,  or to extend
other financial accommodations to Borrowers, except the parties have agreed that
during the  Forbearance  Period they will negotiate in good faith to restructure
the debt of DCI to the Lender.

     7. Reaffirmation of Loan Agreements.  The Borrowers reaffirm and agree that
all of the Loan  Agreements are fully  enforceable  and in full force and effect
and have not been waived or

                                       5
                                                            Page 67 of 207 Pages
<PAGE>

modified  in any  manner  except  as  expressly  set  forth  in the  Forbearance
Agreement,  Amendment No. 1,  Amendment No. 2, Amendment No. 3, Amendment No. 4,
Amendment  No. 5 and this  Amendment  No.  6, and that the Loan  Agreements,  as
modified by this  Amendment No. 6, are fully  enforceable  and in full force and
effect on the date of this Amendment No. 6.

     8.  Application  of Payments and  Collections.  Borrowers  hereby waive the
right,  if any, to direct the manner in which  Lender  applies  any  payments or
collections to the Indebtedness and agrees that Lender may apply and reapply all
such payments to the Indebtedness as Lender in its sole and absolute  discretion
elects from time to time.

     9.  Representations  and Warranties of Borrowers.  Borrowers  represent and
warrant that (a) no Event of Default  exists under the Loan  Agreements,  except
for Events of Default  identified in Section 2 of this  Amendment No. 6 that are
in existence on the date hereof;  (b) subject to the  existence of the Events of
Default specified in Section 2 of this Amendment No. 6, the  representations and
warranties of Borrowers  contained in the Loan  Agreements were true and correct
in all material  respects on the date hereof;  (c) the  execution,  delivery and
performance  by Borrowers of this  Amendment No. 6 and the  consummation  of the
transactions contemplated hereby are within the power of Borrowers and have been
duly authorized by all necessary  corporate action on the part of the Borrowers,
do not require any approval or consent,  or filing with, any governmental agency
or authority or any person,  do not violate any  provisions  of any law, rule or
regulation or any provision of any order, writ,  judgment,  injunction,  decree,
determination  or award  presently in effect in which Borrowers are named or any
provision of the charter documents of Borrowers and do not result in a breach of
or constitute a default under any agreement or instrument to which Borrowers are
a party  or by  which  they or any of  their  properties  are  bound;  (d)  this
Amendment  No.  6  constitutes  the  legal,  valid  and  binding  obligation  of
Borrowers,  enforceable  against Borrowers in accordance with its terms; (e) the
Borrowers are entering into this Amendment No. 6 freely and voluntarily with the
advice of legal counsel of their own choosing; (f) the Borrowers have freely and
voluntarily  agreed to the releases,  waivers and undertakings set forth in this

Amendment  No.  6; (g) the  Public  Auction  Sale and all  efforts  taken by the
Lender, its agents,  employees and attorneys to notice, conduct and conclude the
Public  Auction  Sale were  proper by the  Lender,  its  agents,  employees  and
attorneys and were performed in a commercially reasonable manner as provided for
in the Uniform Commercial Code and the Borrowers freely and voluntarily  release
and waive any claims against the Lender, its agents, employees and attorneys for
any actions or  undertakings in connection with the Public Auction Sale; and (h)
irrespective  of the fact that the financial  projections  dated April 12, 1996,
for the two (2) years  ending  October  31,  1997,  prepared  by the  Borrowers,
indicate  loans in  excess  of the  Maximum  Loan  Amount  are  required  by the
Borrowers,  Borrowers  acknowledge  that the  Maximum  Loan  Amount  will not be
exceeded.

     10.  Covenants of the  Borrowers.  In addition to each of the covenants set
forth in the Loan Agreements, the Borrowers have, or will:

     (a) duly and  punctually  observe,  perform  and  discharge  each and every
obligation and covenant on their parts to be performed  under this Amendment No.
6;

                                       6
                                                            Page 68 of 207 Pages
<PAGE>


     (b) deliver to the Lender,  each of which shall be satisfactory in form and
substance to Lender:

     (I)  Release and Indemnification Agreement by the Borrowers;

     (ii) A  signed  consent  from  Joseph  M.  Lobozzo,   II  agreeing  to  and
          acknowledging  to the delivery and  execution of Amendment No. 6 and a
          Reaffirmation of Subordination;

     (iii) A signed Reaffirmation of Guaranty by SAI/Delta, Inc.;

     (iv) Certified copies (certified by authorized  officers of Borrowers) of a
          corporate  resolution  taken by Borrowers to authorize the  execution,
          delivery and performance of this Amendment No. 6;

     (v)  Certificates  of incumbency  and specimen  signatures  with respect to
          each of the officers of Borrowers  who are  authorized  to execute and
          deliver this Amendment No. 6 and the Loan Agreements;

     (vi) Certified Consolidated Financial Statements for the Borrowers prepared
          in accordance with Generally  Accepted  Accounting  Principals for the
          fiscal  year ending  October 31,  1995,  which shall be  delivered  to
          Lender so as to be received no latter than September 30, 1996;

     (c) have executed and delivered this Amendment No. 6;

     (d)  Borrowers  shall from March 1, 1996,  collect at least Eighty  Percent
(80%) of the  projected  accounts  receivable  as set forth on page DDN-6 of the
annexed Exhibit "A", all as set forth on page DDN-6, identified in each instance

as a page from the Delta Data Net, Inc. Financial  Projections for the two years
ended October 31, 1997; and

     (e)  Borrowers  shall have paid all fees and  expenses of Lender's  counsel
incurred in the preparation, negotiation, execution, delivery and administration
of this Amendment No. 6.

     11. Termination. In the event the Lender shall terminate this Amendment No.
6, DCI  agrees  that , at the option of Lender,  it shall  commence a  voluntary
liquidation of its entire business.  This provision is in addition to any of the
other rights and remedies available to the Lender under the Loan Agreements.
   
     12.  Bankruptcy.  In the event either of the Borrowers files for bankruptcy
relief under 11 U.S.C.  Section 101 et seq. or an involuntary  petition is filed
against either of the Borrowers,  then in such event,  Borrowers agree that they
will consent to granting  Lender  relief from the  automatic  stay  provided for
under 11 U.S.C. Section 362 and Borrowers shall not seek to restrain,  enjoin or

                                       7
                                                            Page 69 of 207 Pages
<PAGE>

otherwise  interfere with Lender's rights  pursuant to 11 U.S.C.  Section 105 or
any other  Federal  or State  statute.  Borrowers  will  consent to any Order or
execute any  document  necessary  for Lender to obtain the relief  provided  for
herein.

     13. Relationship of Parties; No Third Party Beneficiaries.  Nothing in this
Amendment  No. 6 shall be  construed  to alter  the  existing  borrower-creditor
relationship  between Borrowers and Lender, nor is this Amendment No. 6 intended
to change or affect in any way the  relationship.  This  Amendment  No. 6 is not
intended,  nor shall it be construed to create,  a partnership  or joint venture
relationship  between or among any of the  parties  hereto.  No person or entity
other than a party hereto is intended to be a  beneficiary  hereof and no person
or  entity  other  than a party  hereto  shall be  authorized  to rely  upon the
contents of this Amendment No. 6.

     14. Entire  Agreement;  Modification  of Agreement.  This  Amendment No. 6,
Amendment No. 1,  Amendment No. 2,  Amendment No. 3,  Amendment No. 4, Amendment
No. 5, the Forbearance  Agreement and the other Loan  Agreements  constitute the
entire  understanding  of the parties with respect to the subject  matter hereof
and thereof. This Amendment No. 6 may not be modified, altered or amended except
by agreement in writing signed by all the parties hereto.

     15.  Governing Law. This Amendment No. 6 shall be governed by and construed
in accordance with the law of the State of New York.

     16.  Non-Waiver  of  Default.   Neither  this  Amendment  No.  6,  Lender's
forbearance  hereunder  nor  Lender's  continued  making  of  Loans  to  DCI  in
accordance  with this  Amendment No. 6 shall be deemed a waiver of or consent to
the Events of Default referenced in Section 2 of this Amendment No. 6. Borrowers
agree  that such  Events  of  Default  shall not be deemed to have been  waived,
released  or cured by  virtue  of such  Loans,  Lender's  agreement  to  forbear
pursuant to the terms of this Amendment No. 6 or the execution of this Amendment

No. 6.

     17. No Novation.  This  Amendment No. 6 is not intended to be, nor shall it
be construed to create,  a novation or accord and  satisfaction,  and, except as
otherwise  expressly  stated herein,  the Loan  Agreements  (including,  without
limitation,  Borrowers'  obligation  under the  Lockbox  Agreement  by and among
Borrowers and Lender) shall remain in full force and effect. Notwithstanding any
prior  mutual  temporary  disregard  of  any  of the  terms  of any of the  Loan
Agreements,  the  parties  agree  that the terms of each of the Loan  Agreements
shall be strictly  adhered to on and after the date hereof,  except as expressly
modified by this Amendment No. 6.

     18.  Miscellaneous.  This  Amendment No. 6 may be executed in any number of
counterparts and by different parties hereto in separate  counterparts,  each of
which when so executed  shall  constitute  an  original,  but all of which taken
together shall be one and the same instrument. In enforcing this Amendment No.6,
it  shall  not be  necessary  to  produce  or  account  for  more  than one such
counterpart  signed by the party against whom  enforcement is sought.  Notice of
Lender's acceptance hereof is hereby waived.

                                       8
                                                            Page 70 of 207 Pages
<PAGE>



     19. Release of Claims. TO INDUCE LENDER TO ENTER INTO THIS AMENDMENT NO. 6,
BORROWERS  HEREBY RELEASE,  ACQUIT AND FOREVER  DISCHARGE  LENDER,  AND LENDER'S
OFFICERS, DIRECTORS, PROFESSIONALS,  AUCTIONEERS, APPRAISERS, ATTORNEYS, AGENTS,
EMPLOYEES,  SUCCESSORS  AND  ASSIGNS,  FROM ALL  LIABILITIES,  CLAIMS,  DEMANDS,
ACTIONS OR CAUSES OF ACTIONS OF ANY KIND (IF ANY THERE BE),  WHETHER ABSOLUTE OR
CONTINGENT,  DUE OR TO BECOME DUE, DISPUTED OR UNDISPUTED,  AT LAW OR IN EQUITY,
THAT THE  BORROWERS  NOW HAVE OR EVER HAD  AGAINST  LENDER  ARISING  UNDER OR IN
CONNECTION WITH ANY OF THE LOAN AGREEMENTS, THE FORBEARANCE AGREEMENT, AMENDMENT
NO. 1,  AMENDMENT NO. 2,  AMENDMENT NO. 3,  AMENDMENT NO. 4, AMENDMENT NO. 5 AND
THIS AMENDMENT NO. 6, THE PUBLIC AUCTION SALE OR OTHERWISE.

     20. Severability.  Wherever possible, each provision of this Amendment No.6
is to  be  interpreted  in  such  manner  as to be  effective  and  valid  under
applicable  law, but if any provision of this Amendment No.6 is to be prohibited
by or invalid under  applicable law, such provision is to be ineffective only to
the extent of such prohibition or invalidity, without invalidating the remainder
of such provision or the remaining provisions of this Amendment No. 6.

     21. Loan  Agreements.  This Amendment No. 6 shall be entitled to all of the
benefits of the Loan Agreements.

     22. Further  Representations.  The Borrowers  hereby  represent and warrant
that after the date hereof they will have the same principal  place of business,
DCI will  continue to do business in the same  location as it was doing prior to
the date hereof and will continue to use the names Delta Computec Inc. and Delta
Data Net,  Inc.,  unless it gives Lender prior written notice of any such change
in the manner provided for under the Loan Agreements.


     23. Notices.  The Borrowers hereby  acknowledge that all notices,  requests
and demands in accordance with the Loan Agreements and this Amendment No.6 shall
be addressed to Lender as follows:

                           E. Lynn Forgosh, Group V.P.
                          National Canada Finance Corp.
                              125 West 55th Street
                          New York, New York 10019-5366

                              -- with a copy to --

                                       9
                                                            Page 71 of 207 Pages
<PAGE>


                           Walter J. Greenhalgh, Esq.
                            Duane, Morris & Heckscher
                                    Suite 500
                              One Riverfront Plaza
                            Newark, New Jersey 07102

     Lender  hereby  acknowledges  that all  notices,  requests  and  demands in
accordance  with the Loan  Documents and this Amendment No. 6 shall be addressed
to Borrowers as follows:



                                    President
                              Delta Computec, Inc.
                                900 Huyler Street
                           Teterboro, New Jersey 07608
                           Telecopy No. (201) 440-3985

                                       or

                                    President
                              Delta Data Net, Inc.
                                900 Huyler Street
                           Teterboro, New Jersey 07608
                           Telecopy No. (201) 440-3985


                              -- with a copy to --

                              Edwin M. Larkin, Esq.
                          Jaeckle, Fleischmann & Mugel
                           39 State Street, Suite 460
                         Rochester, New York 14614-1310
                           Telecopy No. (716) 262-4133

     IN WITNESS WHEREOF,  the parties hereto have caused this Amendment No. 6 to
be duly executed and delivered on the year and day first written above.


                                                 BORROWERS:

                                                 DELTA COMPUTEC INC.

ATTEST:                                          By: ______________________
                                                 Name: ____________________
                                                 Title: _____________________
By:_______________________
      [CORPORATE SEAL]


                                       10
                                                            Page 72 of 207 Pages
<PAGE>


                                                  DELTA DATA NET, INC.

ATTEST:                                           By: ______________________
                                                  Name: ____________________
                                                  Title: _____________________
By:_____________________
      [CORPORATE SEAL]


                       (SIGNATURES CONTINUED ON NEXT PAGE)


                                       11
                                                            Page 73 of 207 Pages
<PAGE>



                                                   LENDER:

                                                   NATIONAL CANADA FINANCE CORP.


                                                   By: ________________________
                                                     E. Lynn Forgosh, Group V.P.

ATTEST:

By:_________________________
      [CORPORATE SEAL]

                                       12
                                                            Page 74 of 207 Pages


<PAGE>
       THIS DOCUMENT IS A COPY OF THE EXHIBIT FILED ON OCTOBER 24, 1996
             PURSUANT TO A RULE 201 TEMPORARY HARDSHIP EXEMPTION.

                          NATIONAL CANADA FINANCE CORP
                            A National Bank Company
                              125 West 55th Street
                         New York, New York 10019-5366
                     Tel. (212) 632-8500 Fax (212)632-8775

                                                  October 1, 1996


Delta Computec, Inc.
900 Huyler Street
Teteboro, Nj  070608
Telecopier: 201-440-3985

Attention:  John DeVito, President

     Re:  Extension to Amendment No. 6 to Forebearance Agreement

Dear John:

     In consideration of the anticipated  closing of the assignment  transaction
among National Canada Finance Corp. ("NCFC"),  Joseph L. Lobozzo,II  ("Lobozzo")
and Delta Computecc,  Inc. ("DCI"), I am writing to confirm that NCFC has agreed
to extend the "Forbearnace Period" under the Sixth Amendment to the close of the
Business,  October  3,  1996.  I will  be out of the  office  tomorrow  and  not
reachable. We therefore need to resolve any remaining issues today.

     All other  provisions of the Sixth Amendment shall remain in place and , as
we discussed,  NCFC will permit  advances under the DCI credit  facility only to
the extent that there is elegibility under the DCI facility.

     Please contact me if you have any questions.

                                                     Sincerely,


                                                     E. Lynn Forgosh
                                                     Group Vice President

cc:  James  J.  Holman,  Esquire  (by  telecopier)  
     Joseph  L.  Lobozzo,  II (by telecopier)

                                                            Page 75 of 207 Pages


<PAGE>
       THIS DOCUMENT IS A COPY OF THE EXHIBIT FILED ON OCTOBER 24, 1996
             PURSUANT TO A RULE 201 TEMPORARY HARDSHIP EXEMPTION.

                          NATIONAL CANADA FINANCE CORP
                            A National Bank Company
                              125 West 55th Street
                         New York, New York 10019-5366
                     Tel. (212) 632-8500 Fax (212)632-8775


                                                  October 4, 1996


Delta Computec, Inc.
900 Huyler Street
Teteboro, Nj  070608
Telecopier: 201-440-3985

Attention:  John DeVito, President

Re:  Extension to Amendment No. 6 to Forebearance Agreement

Dear John:

     In consideration of the anticipated  closing of the assignment  transaction
among National Canada Finance Corp. ("NCFC"),  Joseph L. Lobozzo,II  ("Lobozzo")
and Delta Computecc,  Inc. ("DCI"), I am writing to confirm that NCFC has agreed
to extend the "Forbearnace Period" under the Sixth Amendment to the close of the
Business, October 9, 1996.

     All other  provisions of the Sixth Amendment shall remain in place and , as
we discussed,  NCFC will permit  advances under the DCI credit  facility only to
the extent that there is elegibility under the DCI facility.

     Please contact me if you have any questions.

                                                  Sincerely,


                                                  E. Lynn Forgosh
                                                  Group Vice President

cc:  James J. Holman, Esquire (by telecopier)
     Joseph L. Lobozzo, II (by telecopier)

                                                            Page 76 of 207 Pages


<PAGE>
       THIS DOCUMENT IS A COPY OF THE EXHIBIT FILED ON OCTOBER 24, 1996
             PURSUANT TO A RULE 201 TEMPORARY HARDSHIP EXEMPTION.

                          NATIONAL CANADA FINANCE CORP
                            A National Bank Company
                              125 West 55th Street
                         New York, New York 10019-5366
                     Tel. (212) 632-8500 Fax (212)632-8775


                                             October 10, 1996


Delta Computec, Inc.
900 Huyler Street
Teteboro, Nj  070608
Telecopier: 201-440-3985

Attention:  John DeVito, President

Re:  Extension to Amendment No. 6 to Forebearance Agreement

Dear John:

     In consideration of the anticipated  closing of the assignment  transaction
among National Canada Finance Corp. ("NCFC"),  Joseph L. Lobozzo,II  ("Lobozzo")
and Delta Computecc,  Inc. ("DCI"), I am writing to confirm that NCFC has agreed
to extend the "Forbearnace Period" under the Sixth Amendment to the close of the
Business, October 10, 1996.

     All other  provisions of the Sixth Amendment shall remain in place and , as
we discussed,  NCFC will permit  advances under the DCI credit  facility only to
the extent that there is elegibility under the DCI facility.

     Please contact me if you have any questions.

                                             Sincerely,


                                             E. Lynn Forgosh
                                             Group Vice President

cc:  James J. Holman, Esquire (by telecopier)
     Joseph L. Lobozzo, II (by telecopier)

                                                            Page 77 of 207 Pages


<PAGE>
       THIS DOCUMENT IS A COPY OF THE EXHIBIT FILED ON OCTOBER 24, 1996
             PURSUANT TO A RULE 201 TEMPORARY HARDSHIP EXEMPTION.

                                   ASSIGNMENT


     NATIONAL CANADA FINANCE CORP., a Delaware corporation with an office at 125
West 55th Street, New York, New York 10019 ("Assignor"), for in consideration of
the sum of One Million Four Hundred  Forty-nine  Thousand Eight Hundred  Fifteen
and 99/100 Dollars ($1,449,815.99), the receipt of which is hereby acknowledged,
does hereby, without recourse,  sell, grant assign,  convey,  transfer, set over
and deliver unto JOSEPH M.  LOBOZZO II, with an office at 690  Portland  Avenue,
Rochester,  New York 14621 ("Assignee"),  all of the Assignor's right, title and
interest,  in and to those  certain  documents  identified  on Exhibit A annexed
hereto (the "Loan Instruments"), except to the extent that such right, title and
interest relates to indebtedness of Delta Computec Inc. (but not Delta Data Net,
Inc.) to  Assignor  in the  principal  sum of  $750,000  and  accrued and unpaid
interest on such  principal sum except that Assignor  retains a shared  security
interest with Assignee in the spare parts inventory of Delta Computec Inc.

     THIS  ASSIGNMENT,  (2)  ANY  OF  THE  LOAN  INSTRUMENTS  OR  THE  VALIDITY,
SUFFICIENCY OR ENFORCEABILITY OF ANY THEREOF,  (3) ANY ASPECT OF ANY TRANSACTION
BETWEEN ASSIGNOR AND DELTA COMPUTEC INC, DELTA DATA NET, INC., OR SAI/DELTA INC.
OR (4) ANY OTHER MATTER WHATSOEVER,  except that Assignor represents to Assignee
that there is due and owing under the Loan  Instruments the principal sum of Two
Million One  Hundred  

                                                            Page 78 of 207 Pages
<PAGE>

Ninety-nine Thousand,  Eight Hundred Fifteen and 89/100 Dollars ($2,199,815.99),
plus accrued and unpaid  interest of Five  Thousand  Nine Hundred  Sixty-two and
50/100 Dollars  ($5,962.50) as of October 10, 1996, which includes  principal of
$750,000.00 that is not being assigned to Assignee.

     Assignee  acknowledges  that prior to the date  hereof the  balance  due to
Assignor  under the Loan  Instruments  may have been  reduced by checks or other
instruments  (collectively,  the "Returned Items") which may not be honored upon
presentation  by  Assignor  after the date  hereof.  To the extent that any such
Returned  Items are not honored  for the  account of  Assignor  in the  ordinary
course of Assignor's  business,  Assignee  agrees to indemnify the Assignor upon
demand for such Returned Items by remitting to Assignor an amount  sufficient to
restore to $750,000,  the principal sum due to the Assignor as of the assignment
date pursuant to the Loan Instruments, but not assigned to Assignee.

     IN WITNESS  WHEREOF,  this  Assignment  has been duly executed by Assignor,
intending to be legally bound, the 10th day of October, 1996.

                                            NATIONAL CANADA FINANCE CORP.

                                            By: /s/ E. Lynn Forgosh
                                            Name:   E. Lynn Forgosh
                                            Title:  Group V.P.



                                       2
                                                            Page 79 of 207 Pages
<PAGE>



STATE OF ______________    )
COUNTY OF _____________    ) SS:

     On this 10 day of October, 1996, before me, the subscriber, personally came
E. Lynn  Forgosh to me known,  who,  being by me duly sworn,  did depose and say
that (s)he  resides at 125 West 55th St.,  New York New York;  that (s)he is the
Group Vice President of NATIONAL CANADA FINANCE CORP., the corporation described
in and such  executed  the  above  instrument;  and  that  (s)he  executed  said
instrument by authority of the Board of Directors of said corporation.


                                  /s/ Una Teresa Finn
                                  Notary Public

                                                                  [NOTARY STAMP]
                                                                 Una Teresa Finn
                                                Notary Public, State of New York
                                                      Qualified in Queens County
                                               Commission Expires March 11, 1998


                                       3
                                                            Page 80 of 207 Pages


<PAGE>
       THIS DOCUMENT IS A COPY OF THE EXHIBIT FILED ON OCTOBER 24, 1996
             PURSUANT TO A RULE 201 TEMPORARY HARDSHIP EXEMPTION.

                              AMENDED AND RESTATED
                                 PROMISSORY NOTE


     THIS AMENDED AND RESTATED  PROMISSORY NOTE is made this 10th day of October
1996 by and  between  DELTA  COMPUTEC  INC.,  a New  York  corporation  with its
principal office and place of business 900 Huyler Street,  Teterboro, New Jersey
07608  ("Borrower")  and NATIONAL  CANADA FINANCE CORP., a Delaware  corporation
with an office and place of business at 125 West 55th Street, New York, New York
10019-5366 ("Lender").

                              W I T N E S S E T H :

     WHEREAS,  Borrower,  Delta Data Net, Inc. ("DDI") and Lender entered into a
certain  Credit  Agreement  dated as of April 1,  1994,  as  amended  by  Credit
Agreement  Amendment No. 1 dated November 17, 1994,  Credit Agreement  Amendment
No. 2 dated January 24, 1995,  Credit  Agreement  Amendment No. 3 dated April 3,
1995,  Credit  Agreement  Amendment No. 4 dated May 1, 1995 and Credit Agreement
Amendment No. 5 dated October 27, 1995 (as amended, the "Credit Agreement"); and

     WHEREAS,  Borrower and DDI  executed  and  delivered to Lender a Promissory
Note dated  April 1, 1994,  as amended and  restated by an Amended and  Restated
Promissory Note dated May 1, 1995 and as further amended and restated by a Third
Amended  and  Restated  Promissory  Note dated  October 27, 1995 (as amended and
restated, the "Promissory Note"); and

     WHEREAS,  on the date  hereof,  Lender is assigning to Joseph M. Lobozzo II
("Lobozzo")  all  indebtedness  of DDI to  Lender  and all but  $750,000  of the
indebtedness  owed to Lender by Borrower  evidenced by the Credit  Agreement and
the Promissory Note; and

     WHEREAS,  Borrower and Lender  desire to enter into a new  agreement  which
amends and restates,  in its entirety,  the portions of the Credit Agreement and
the Promissory Note evidencing the indebtedness which Lender is not assigning to
Lobozzo.

     NOW, THEREFORE, Borrower and Lender agree as follows:

     1. Promise to Pay. For value received,  Borrower promises to pay to Lender,
on the earlier to occur of: (a) October 10, 2001 (the "Maturity  Date");  or (b)
the day upon which  Lender  accelerates  the  Indebtedness  (as herein  defined)
following  the  occurrence  of an Event  of  Default  and,  if  applicable,  the
expiration  of any cure period  related to such Event of Default,  the principal
sum of Seven  Hundred  Fifty  Thousand  and 00/100  Dollars  ($750,000.00)  (the
"Principal"),  plus interest as agreed below and all reasonable  attorneys' fees
and disbursements Lender incurs in order to collect any amount due

                                                            Page 81 of 207 Pages
<PAGE>


under  this Note.  All of  Borrower's  obligations  to Lender  described  in the
preceding  sentence,  together with  Borrower's  obligations  to make  Quarterly
Premium Payments, as such term is defined below, are collectively referred to as
the "Indebtedness".

     2. Interest.  The unpaid Principal balance of this Note shall earn interest
calculated  on the basis of a 360-day year for the actual number of days of each
year (365 or 366) from and  including  the date hereof to but not  including the
date all  amounts  hereunder  are paid in full at a rate per year that  shall on
each day be one  percent  (1%)  above the rate in effect on that day as the rate
announced  by Lender  as its  Prime  Rate of  interest.  Until  the  outstanding
Principal  is paid in full,  payments  of all  accrued  and unpaid  interest  in
amounts  which will vary will  become  due and  payable on the first day of each
month commencing on November 1, 1996.  "Prime Rate" shall mean the interest rate
per annum  announced  from time to time by Lender as its Prime  Rate.  The Prime
Rate may be greater or lesser  than other  interest  rates  charged by Lender to
other  borrowers  and is not solely  based or dependent  upon the interest  rate
which Lender may charge any particular borrower or class of borrowers.

     3.  Interest  Rate Cap. It is the intent of Lender and Borrower  that in no
event  shall  interest  be  payable  at a rate in  excess  of the  maximum  rate
permitted by  applicable  law (the "Maximum  Legal Rate").  Solely to the extent
necessary to prevent  interest  under this Note from exceeding the Maximum Legal
Rate,  any amount  that would be treated  as  excessive  under a final  judicial
interpretation  of  applicable  law shall be  deemed to have been a mistake  and
automatically  canceled,  and,  if  received  by Lender,  shall be  refunded  to
Borrower.

     4. Prepayment  Premium.  

          (a) During the  period  from the date  hereof  through  and  including
     October 10,  1997,  Borrower  may prepay all or any portion of this Note at
     any time  without  premium or penalty.  During the period from  October 10,
     1997 through and including October 10, 1999, Borrower may prepay all or any
     portion of this Note at any time; provided, however, any prepayment of this
     Note in full  must be  accompanied  by all  accrued  and  unpaid  Quarterly
     Premium Payments, as such term is defined below.  Thereafter,  Borrower may
     prepay  all or any  portion  of this Note at any time  without  premium  or
     penalty.

          (b) A premium of $25,000 per quarter (a "Quarterly  Premium  Payment")
     shall accrue as of the first day of each  three-month  period  beginning on
     October 10, 1997, but the aggregate of all Quarterly Premium Payments shall
     not exceed $200,000.

                                       2
                                                            Page 82 of 207 Pages
<PAGE>

          (c) If a portion of this Note,  but not the entire Note, is paid as of
     the date any Quarterly  Premium  Payment  accrues (a "QPP  Reduction  Ratio
     Date"),  the Quarterly  Premium  Payment  accruing as of such QPP Reduction
     Ratio Date shall be reduced by the proportion that all prepayments  made on
     this Note as of that QPP Reduction Ratio Date (the "QPP Prepayment  Total")

     bears to $750,000;  provided,  however, that, except to the extent provided
     in the Pledge Agreement,  as hereinafter  defined, no such prepayment shall
     affect  Lender's right to Warrant  Shares or Option Shares,  as these terms
     are defined in that certain Pledge Security Agreement dated the date hereof
     between Lender and Lobozzo (the "Pledge Agreement").

     5.  Additional   Consideration.   As  of  the  date  hereof,   for  and  in
consideration of Lender's  agreement,  at the request of Borrower and Lobozzo to
enter  into this Note and  related  documents:  (a)  Lobozzo,  pursuant  to that
certain  Limited  Nonrecourse  Guaranty and  Suretyship  Agreement (the "Lobozzo
Guaranty")  and the Pledge  Agreement,  has agreed to deliver to Lender  certain
common  shares of Borrower and warrants or options  related to common  shares of
Borrower in such amounts as are set forth in the Lobozzo Guaranty and the Pledge
Agreement;  and (b) Borrower,  pursuant to Section 6(l) of this Note, has agreed
to take certain  action.  The  agreements set forth in clauses (a) and (b) above
are referred to herein as the "Security Obligations".

     6.  Representations  and Covenants.  Borrower represents to and agrees with
Lender that now and until this Note is paid in full:

          (a) Good  Standing;  Authority.  Borrower  is a  corporation  (i) duly
     organized  and  existing  and  in  good  standing  under  the  laws  of the
     jurisdiction in which it was formed, (ii) duly qualified,  in good standing
     and authorized to do business in every  jurisdiction in which failure to be
     so qualified would have a material adverse effect on its business or assets
     and (iii)  having the power and  authority to own each of its assets and to
     use them as contemplated now or in the future.

          (b)  Legality.  The  execution,   issuance,  delivery  to  Lender  and
     performance  by Borrower of this Note (i) are in  furtherance of Borrower's
     purposes and within its power and authority; (ii) do not violate Borrower's
     certificate of incorporation  or other governing  instrument or result in a
     lien or  encumbrance  on any assets of  Borrower;  and (iii) have been duly
     authorized by all necessary corporate action.

          (c) Compliance.  Borrower conducts its business and operations and the
     ownership  of its  assets  in  compliance  with  each  applicable  statute,
     regulation and other law, including without limitation  environmental laws.
     All  approvals,  including  without

                                       3
                                                            Page 83 of 207 Pages
<PAGE>

     limitation  authorizations,   permits,  consents,   franchises,   licenses,
     registrations, filings, declarations, reports and notices (the "Approvals")
     necessary  to the conduct of  Borrower's  business and for  Borrower's  due
     issuance  of this Note have been duly  obtained  and are in full  force and
     effect. Borrower is in compliance with all conditions of each Approval.

          (d) Financial and Other Information.  For each year until this Note is
     paid in full,  Borrower  shall provide to Lender:  (i) within 60 days after
     the  end  of  each  fiscal  quarter  of  Borrower,  unaudited  consolidated
     quarterly financial  statements certified by an officer of Borrower to have

     been prepared in accordance with generally accepted  accounting  principles
     and to be correct, complete and in accordance with Borrower's records, (ii)
     on or before the earlier to occur of (A) the date on which  Borrower  files
     its annual 10K report with the U.S. Securities and Exchange Commission,  or
     (B) 120 days  after  the end of  Borrower's  fiscal  year,  audited  annual
     consolidated financial statements of Borrower.

          (e)  Accounting;  Tax  Returns and  Payment of Claims.  Borrower  will
     maintain a system of accounting  and reserves in accordance  with generally
     accepted  accounting  principles,  will file each tax return required of it
     and,  except as disclosed in an attached  schedule,  will pay when due each
     tax,  assessment,  fee,  charge,  fine and  penalty  imposed  by any taxing
     authority upon Borrower or any of its assets, income or franchises.

          (f) Insurance.  Borrower will maintain its property in good repair and
     will  maintain  and on request  provide  Lender with  evidence of insurance
     coverage  satisfactory  to Lender  including  without  limitation  fire and
     hazard,  liability,  worker's  compensation  and flood hazard  insurance as
     required.

          (g) Judgments and  Litigation.  There is no pending  claim,  action or
     other legal proceeding or judgment,  order or award of any court, agency or
     other  governmental  authority  or  arbitrator  (each  an  "Action")  which
     involves  Borrower or its assets and would have a material  adverse  effect
     upon  Borrower  or  threaten  the  validity  of this  Note.  Borrower  will
     immediately  notify Lender in writing upon acquiring  knowledge of any such
     Action.

          (h)  Notice  of  Change  of  Address  and of  Default.  Borrower  will
     immediately notify Lender in writing (i) of any change in its address or of
     the location of any collateral  securing this Note,  (ii) of the occurrence
     of any Event of Default  defined below and (iii) of any material  change in
     Borrower's ownership or management.

                                       4
                                                            Page 84 of 207 Pages
<PAGE>


          (i)  Payment  of a portion of equity  proceeds.  In the event that DCI
     raises capital in any offering of additional equity, DCI shall,  within ten
     (10)  business  days of the  receipt of  immediately  available  funds as a
     result of such  offering,  remit fifty  percent  (50%) of such  immediately
     available funds to Lender to be applied by Lender as a permanent  reduction
     in the Indebtedness.

          (j) Spare  Parts  Inventory  Certification.  Subject to the  Inventory
     Covenant Cure Period, as such term is defined below, Borrower shall furnish
     to Lender on or before the fifth business day of any month a  certification
     in the  form  attached  hereto  as  Exhibit  A (a  "Spare  Parts  Inventory
     Certificate")  as of the  last  day of the  preceding  month  of the  value
     (determined in accordance with generally accepted accounting principles) of
     Borrower's  Spare Parts  Inventory,  as such term is defined in the Amended
     and Restated Security Agreement dated the dated hereof between Borrower and

     Lender.

          (k) Collateral Coverage Ratio.  Subject to the Inventory Covenant Cure
     Period,  Borrower  shall  have,  as of the  last day of each  month  and as
     certified  on the Spare Parts  Inventory  Certificate,  a ratio (the "Spare
     Parts  Inventory  Ratio")  of the  value  (determined  in  accordance  with
     generally accepted  accounting  principles) of the Spare Parts Inventory to
     an amount equal to the outstanding principal balance of this Note, plus the
     amount  of any  indebtedness  secured  by a lien in favor  of the  Internal
     Revenue Service or purchase money security interest, which lien or security
     interest  encumbers the Spare Parts  Inventory and has priority over NCFC's
     security  interest in the Spare Parts  Inventory,  less any cash collateral
     securing  this Note,  of at least 2.5 to 1. Lender  agrees that  Borrower's
     failure to have the Spare Parts  Inventory  Ratio required by the preceding
     sentence  and as  required  by  clause  7(d)  below,  may be cured by (i) a
     reduction  in the  principal  amount of this Note,  (ii)  delivery  of cash
     collateral to the Lender,  (iii) the acquisition of additional  Spare Parts
     Inventory or (iv)  furnishing a further Spare Parts  Inventory  Certificate
     certifying  that Borrower has a Spare Parts  Inventory Ratio that meets the
     requirements of the foregoing covenant.

          (l) Warrant.  Borrower shall use its reasonable  efforts to present to
     its shareholders for approval a resolution authorizing Borrower to issue to
     Lender by October 10, 1999, a warrant,  in substantially  the form attached
     as  Exhibit A to the  Pledge  Agreement,  for a number of common  shares of
     Borrower that when added to the Pledged Shares,  as such term is defined in
     the Pledge Agreement,  will give Lender rights to 17 1/2% of the issued and
     outstanding common shares of Borrower,  subject,  however, to adjustment as
     provided  in  Section 4 of the  Pledge  Agreement.  If such  resolution  is
     approved, Borrower shall promptly issue such warrant.

                                       5
                                                            Page 85 of 207 Pages
<PAGE>


     7.  Events  of  Default;  Acceleration.  An event  of  default  ("Event  of
Default") will have occurred if, prior to the payment in full by Borrower of its
Indebtedness hereunder:

          (a)  Borrower  fails to pay any amount of interest due under this Note
     within  forty-five  (45) days after receipt of a written notice from Lender
     that an amount of interest was not timely paid in accordance with paragraph
     2 hereof;

          (b)  Borrower  fails  to pay  when  due,  whether  upon  maturity,  by
     acceleration  or  otherwise,  any other  amount due under this Note  within
     forty-five (45) days after receipt of a written notice from Lender that any
     other amount due under this Note was not timely paid;

          (c)  Borrower  fails to  furnish  to  Lender  on or  before  the fifth
     business  day of any month a Spare Parts  Inventory  Certificate  as of the
     last day of the preceding month of the value (determined in accordance with
     generally  accepted  accounting   principles)  of  Borrower's  spare  parts

     inventory and such failure  continues  unremedied  for at least  forty-five
     days (the "Inventory Covenant Cure Period"); provided, however, that Lender
     shall provide  Borrower with at least twenty five days prior written notice
     (which  twenty  five day period  may run  concurrently  with the  Inventory
     Covenant Cure Period) before taking any remedial  action  against  Borrower
     based upon this subsection (c);

          (d) Borrower  fails to have, as of the last day of each month,  and as
     certified on a Spare Parts Inventory  Certificate,  a Spare Parts Inventory
     Ratio of at least 2.5 to 1 and such  failure  continues  unremedied  for at
     least the Inventory Covenant Cure Period;  provided,  however,  that Lender
     shall provide  Borrower with at least twenty five days prior written notice
     (which  twenty  five day period  may run  concurrently  with the  Inventory
     Covenant Cure Period) before taking any remedial  action  against  Borrower
     based upon this subsection (d);

          (e) Lobozzo  declares an event of default  under any of the  documents
     evidencing  the  indebtedness  of Borrower to Lobozzo and any such event of
     default  continues  beyond the expiration of all applicable  grace and cure
     periods,  and any such event of default is further not waived in writing by
     Lobozzo, and thereafter,  Lobozzo actively takes action to enforce, realize
     upon or foreclose his security interest in any tangible assets which secure
     the  indebtedness  of  Borrower to Lobozzo  under an Amended  and  Restated
     Promissory Note dated the date hereof;

          (f) Borrower  breaches or is in default under any other agreement with
     Lender and any such event of default continues beyond the expiration of any
     applicable grace or cure period(s);

                                       6
                                                            Page 86 of 207 Pages
<PAGE>

          (g) Borrower is dissolved;

          (h) A receiver or similar  trustee is  appointed  for  Borrower or its
     assets (with or without its consent),  or Borrower  makes an assignment for
     the  benefit  of  creditors  or  commences  or has  commenced  against it a
     proceeding  pursuant  to  any  bankruptcy  law  and,  with  respect  to the
     appointment of any such receiver or trustee or the commencement of any such
     proceeding against Borrower,  the failure to have such appointment vacated,
     or such proceeding dismissed, within ninety (90) days;

          (i) Any  representation  or warranty  made in a Spare Parts  Inventory
     Certificate  proves to have been made  with the  affirmative  intention  of
     deceiving  Lender as to the value  (determined in accordance with generally
     accepted accounting principles) of Borrower's spare parts inventory.

          (j) Lobozzo  breaches or is in default under the Pledge  Agreement and
     any  such  breach  or  default  continues  beyond  the  expiration  of  any
     applicable grace or cure period(s);

          (k) A final  judgment or judgements  are entered or an order or orders
     of any judicial authority or governmental entity is issued against Borrower

     (such  judgment(s)  and order(s)  hereinafter  collectively  referred to as
     "Judgment") for payment of money,  which Judgment exceeds Two Hundred Fifty
     Thousand  Dollars  ($250,000)  and which is not  covered  by  insurance  or
     otherwise the subject of an appeal as to which a bond has been provided; or

          (l) Borrower  raises capital in any offering of additional  equity and
     fails,  within  ten  (10)  business  days  of the  receipt  of  immediately
     available funds as a result of such equity offering, to remit fifty percent
     (50%) of such  immediately  available  funds to Lender to be  applied  as a
     permanent reduction to the Indebtedness; or

          (m) Lender's agent fails to deliver to Lender a share  certificate for
     the Pledged Shares within twenty one days of the date of this Note.

     Upon the occurrence of any Event of Default and the expiration of any grace
or  cure  period  applicable   thereto,   all  amounts  hereunder  shall  become
immediately due and payable at Lender's option and, subject to the provisions of
the  Intercreditor  Agreement,  Lender  may  thereupon  exercise  all rights and
remedies  available  to it under  this Note and all  documents  entered  into in
connection with this Note and applicable law.

     8. Cumulative Nature of Bank's Rights and Remedies. All rights and remedies
of Lender under  applicable  law and this and other  agreements  of Borrower are
cumulative and not 

                                       7
                                                            Page 87 of 207 Pages
<PAGE>

exclusive.  No single,  partial or  delayed  exercise  by Lender of any right or
remedy  shall  preclude  full and timely  exercise  by Lender at any time of any
right or remedy of Lender without notice. No course of dealing or other conduct,
no oral  agreement  or  representation  made by Lender  or usage of trade  shall
operate  as a waiver  of any  right or remedy  of  Lender.  No  waiver  shall be
effective  against either party unless made specifically in writing by the party
against whom such waiver is sought to be charged.

     9.  Miscellaneous.  This Note,  with any related  security  agreements  and
guaranties,  contains the entire  agreement  between  Lender and  Borrower  with
respect to this Note,  and  supersedes  every course of dealing,  other conduct,
oral agreement and  representation  previously made by Lender. No change in this
Note shall be effective  unless made in a writing duly executed by both parties.
This  Note  shall be  governed  by the  internal  laws of the State of New York,
without  regard to its  principles  of conflict of laws.  This Note is a binding
obligation enforceable against Borrower and its successors and assigns and shall
inure to the benefit of Lender and its successors and assigns. Each provision of
this Note  shall  survive  until  all  amounts  due under  this Note are paid to
Lender, shall be interpreted as consistent with existing law and shall be deemed
amended to the extent  necessary to comply with any conflicting  law. If a court
deems any provision  invalid,  the remainder of the Note shall remain in effect.
Section headings are for convenience  only.  Singular number includes plural and
neuter gender includes masculine and feminine as appropriate.

     10.  Notices.  Notices to Borrower by Lender and to Lender by Borrower must

be in writing,  refer specifically to this Note and be delivered by telecopy and
confirmed by overnight mail or other nationally  recognized  overnight  delivery
service  directed to  Borrower or Lender,  as the case may be, at the address of
each stated on the first page of this Agreement and, when forwarded to Borrower,
with a copy to Edwin M. Larkin,  Esq.,  Jaeckle  Fleischmann & Mugel, LLP, Suite
460, 39 State Street,  Rochester,  New York 14614, and when forwarded to Lender,
with a copy to  Walter  J.  Greenhalgh,  Esq.,  Duane,  Harris &  Hecksher,  One
Riverfront Plaza, Suite 500, Newark,  New Jersey 07102.  Notices shall be deemed
delivered only when actually  received by an officer of Borrower or Lender or by
addressee,  as  the  case  may  be.  Telecopy  numbers  are as  follows:  Lender
212-632-8775;   Walter  J.   Greenhalgh,   Esq.   at   201-733-9881;   Borrower,
201-440-3985, Attention: President; and Edwin M. Larkin, Esq. at 716-262-4133.

     11.  Borrower's  Waivers  and  Consents.  In  any  action  or  other  legal
proceeding  relating  to  this  Note,  Borrower  (1)  consents  to the  personal
jurisdiction  of any state or federal court located in the State of New York and
(2) agrees  that in any 

                                       8
                                                            Page 88 of 207 Pages
<PAGE>

legal proceeding, a copy of this Note kept in Lender's course of business may be
admitted into evidence as an original.

     12. Trial by Jury.  Borrower  agrees that any suit,  action or  proceeding,
whether  claim  or  counterclaim,  brought  or  instituted  by  Borrower  or any
successor  or assign of  Borrower  on or with  respect to this Note or any other
document  executed and delivered in connection with this Note or the dealings of
the parties  with  respect  hereto,  shall be tried only by a court and not by a
jury. BORROWER HEREBY KNOWING, VOLUNTARILY AND INTENTIONALLY WAIVES ANY RIGHT TO
A TRIAL BY JURY IN ANY SUCH SUIT, ACTION OR PROCEEDING. Further, Borrower waives
any  right it may  have to  claim  or  recover,  in any  such  suit,  action  or
proceeding,  any special,  exemplary,  punitive or consequential  damages or any
damages other than, or in addition to, actual damages. BORROWER ACKNOWLEDGES AND
AGREES THAT THIS SECTION IS A SPECIFIC AND MATERIAL ASPECT OF THIS NOTE AND THAT
LENDER WOULD NOT ENTER INTO THIS SECTION WERE NOT A PART OF THIS NOTE.

     13.  Amendment  and  Restatement.  THIS  NOTE IS  ISSUED IN ORDER TO AMEND,
RESTATE  AND  EVIDENCE  AND TO BE A  SUBSTITUTE  FOR,  BUT NOT TO BE A  PAYMENT,
SATISFACTION,  CANCELLATION  OR A  NOVATION  OF A  PORTION  OF THE  INDEBTEDNESS
EVIDENCED BY THE THIRD  AMENDED AND RESTATED  PROMISSORY  NOTE DATED OCTOBER 27,
1995 OF BORROWER AND DDI TO LENDER (THE "SUPERSEDED NOTE");  PROVIDED,  HOWEVER,
THAT THE  SUBSTITUTION OF THIS AMENDED AND RESTATED NOTE FOR THE SUPERSEDED NOTE
DOES NOT EXTINGUISH  THE  INDEBTEDNESS  EVIDENCED BY THE SUPERSEDED  NOTE OR ANY
PORTION  THEREOF AND THE  LIABILITIES  OF BORROWER  THEREUNDER AND HEREUNDER ARE
CONTINUOUS. THIS AMENDED AND RESTATED NOTE DOES NOT EVIDENCE ANY NEW ADVANCES OF
CREDIT OR REFLECT ANY  AGREEMENT BY LENDER FOR THE  EXTENSION OF ANY  ADDITIONAL
CREDIT TO BORROWER.

     14. Releases. (a) Recognizing and in consideration of Lender's undertakings
as herein  set  forth,  Borrower  hereby  waives  and  releases  Lender  and its
officers,  attorneys,  agents,  and employees from any liability,  suit, damage,
claim,  loss or expense of any kind or nature  whatsoever and howsoever  arising

out of or relating to Lender's acts or omissions with respect to Borrower or any
of its lending relationships with Borrower arising on or before the date hereof.

          (b) Recognizing  and in  consideration  of Borrower's  undertakings as
     herein set  forth,  Lender  hereby  waives and  releases  Borrower  and its
     officers, attorneys, agents and employees from any liability, suit, damage,
     claim,  loss or  expense  of any kind or  nature  whatsoever  or  howsoever
     arising out of or relating to Borrower's  acts or omissions with respect to
     Lender or any of its lending relationships with Lender arising on or before
     the date hereof; provided,  however, this paragraph 14(b) is subject in all
     respects to paragraph 13 of this Note and  specifically  excepted  from the
     terms  of the  release  set  forth  in

                                       9
                                                            Page 89 of 207 Pages
<PAGE>

     this paragraph 14(b) shall be the obligations of Borrower  pursuant to this
     Note and all other  documents  executed  in  connection  with this Note and
     dated the date hereof.

     15.  Assignment.  This  Note  and  the  other  documents  entered  into  in
connection  with this Note:  (i) shall be binding  upon Lender and  Borrower and
upon their  respective  successors  and  assigns,  and (ii)  shall  inure to the
benefit of Lender and Borrower;  provided,  however,  that neither  Borrower nor
Lender may assign any rights hereunder or any interest herein without  obtaining
the prior written consent of the non-assigning party, and any such assignment or
attempted  assignment  shall  be  void  and of no  effect  with  respect  to the
non-assigning  party;  provided,  however,  notwithstanding  the  foregoing,  if
Lobozzo  sells,  assigns or otherwise  transfers  more than fifty percent of the
shares of common stock of Borrower  owned by him on the date of this Note,  then
Lender may assign this Note and the other  documents  entered into in connection
with this Note to a  financial  institution,  as such term is defined in Section
3(a)(46) of the Securities  Exchange Act of 1934, as amended or any other entity
in the business of buying and selling loans, but in no event shall Lender assign
this Note to a competitor of Borrower.

     16.  Negation of Partnership or Joint  Venture.  No provision  contained in
this Note nor in any other document  executed between or among Borrower,  Lender
or Lobozzo shall constitute,  or be construed to be or to create, a partnership,
joint venture or other  non-lending  relationship  between  Borrower,  Lender or
Lobozzo or any of them.  Borrower and Lender  specifically  acknowledge  that no
such relationship is intended hereby, and that Lender has entered into this Note
and all  documents  entered  into in  connection  with this  Note  solely in its
capacity as lender to Borrower.

     17. Counterparts.  This Note may be executed in several  counterparts,  and
all so executed shall  constitute  one agreement,  binding on all of the parties
hereto,  notwithstanding  that  all of the  parties  are  not  signatory  to the
original or the same counterpart.





                                              DELTA COMPUTEC INC.


                                              By: /s/ Michael Julian
                                              Name:
                                              Title:   Secretary

                                              NATIONAL CANADA FINANCE CORP.


                                              By:    /s/  E. Lynn Forgash
                                              Name:
                                              Title:


                                       10
                                                            Page 90 of 207 Pages


<PAGE>
       THIS DOCUMENT IS A COPY OF THE EXHIBIT FILED ON OCTOBER 24, 1996
             PURSUANT TO A RULE 201 TEMPORARY HARDSHIP EXEMPTION.

                             INTERCREDITOR AGREEMENT
                             -----------------------


     THIS INTERCREDITOR AGREEMENT is made this 10th day of October 1996 by and
between NATIONAL CANADA FINANCE CORP., a Delaware corporation with an office and
place of business at 125 West 55th Street, New York, New York 10019 ("NCFC"),
and JOSEPH M. LOBOZZO II, with an office at 690 Portland Avenue, Rochester, New
York 14621 ("Lobozzo").

                              W I T N E S S E T H :

     WHEREAS, Delta Computec Inc. ("DCI") and Delta Data Net, Inc. ("DDI") are
parties with NCFC to a Credit Agreement as of April 1, 1994, as the same has
been amended from time to time; and

     WHEREAS, contemporaneously with the execution of this Intercreditor
Agreement, NCFC has assigned to Lobozzo all of its right, title and interest in
and to the Credit Agreement, the indebtedness evidenced by the Credit Agreement
and all related promissory notes and all security agreements relating thereto,
except to the extent that such right, title and interest relates to indebtedness
of DCI (but not DDI) to NCFC under the NCFC Note (as hereinafter defined) and
except that NCFC retains a shared security interest with Lobozzo in the spare
parts inventory of DCI ("Shared Collateral"); and

     WHEREAS, following such assignment, the indebtedness of DCI retained by
NCFC shall be evidenced by an Amended and Restated Promissory Note dated the
date hereof in the principal 

                                                            Page 91 of 207 Pages
<PAGE>


amount of $750,000 (the "NCFC Note") and shall be secured by a security interest
in the Shared Collateral pursuant to an Amended and Restated Security Agreement;
and

     WHEREAS, following the assignment, the indebtedness of DCI and DDI to
Lobozzo shall be evidenced by an Amended and Restated Credit Agreement dated the
date hereof (the "Lobozzo Credit Agreement") and an Amended and Restated
Promissory Note dated the date hereof in the maximum principal amount of
$2,550,000 (the "Lobozzo Note"), shall be secured by a security interest in all
of DCI's and DDI's personal property, including the Shared Collateral, and shall
be guaranteed by SAI/Delta, Inc. ("SAI"), which guaranty shall be secured by a
security interest in all of SAI's personal property; and

     WHEREAS, NCFC and Lobozzo desire to set forth in writing their agreement
concerning the application of the proceeds of Shared Collateral and certain
other matters;


     NOW, THEREFORE, in consideration of the foregoing and the mutual covenants
contained herein, and for other good and valuable consideration, NCFC and
Lobozzo agree as follows:

     1. Capitalized terms used herein without definition shall have the meanings
ascribed to such terms in the NCFC Note.

     2. Any proceeds realized from the sale or other disposition of Shared
Collateral (the "Proceeds of Shared Collateral") shall be applied as follows:

                                       2
                                                            Page 92 of 207 Pages
<PAGE>


     (a) The Proceeds of Shared Collateral shall be applied first to pay the
actual costs and expenses of the party liquidating the Shared Collateral, to the
extent, and only to the extent, such expenses are specifically related to
exercising rights of a creditor against the Shared Collateral.

     (b) After payment of such costs and expenses, any of the Proceeds of Shared
Collateral remaining shall be applied to repayment of all amounts outstanding
under the NCFC Note. 

     (c) After repayment in full of all amounts outstanding under the NCFC Note,
any of the Proceeds of Shared Collateral remaining shall be applied to repayment
of all amounts outstanding under the Lobozzo Credit Agreement and the Lobozzo
Note.

     3. The application of proceeds of collateral described above shall be
effective irrespective of the time or order in which the security interests
described above arise, attach or perfected by filing, recording or otherwise.
The liens of Lobozzo and NCFC with regard to the Shared Collateral relate back
to the original NCFC loan to DCI and DDI, and the division of interests taking
place in the transaction to which this Intercreditor Agreement relates is as a
result of the assignment of a portion of that original NCFC Loan to Lobozzo by
NCFC pursuant to an Assignment being executed of even date with this
Intercreditor Agreement.

                                       3
                                                            Page 93 of 207 Pages
<PAGE>


     4. NCFC agrees that so long as no Event of Default pursuant to clause 7(a),
(b), (c), (d), (e), (g), (i), (l) or (m) of the NCFC Note occurs, taking into
consideration any and all cure periods, that NCFC will not take any action
whatsoever to enforce the NCFC Note or to enforce, realize upon or foreclose its
security interest in the Shared Collateral or take any action which in any other
manner affects NCFC Note or the Shared Collateral, including, in the case of
bankruptcy, any action seeking relief from the automatic stay. No event of
default under the NCFC Note except for those which are described in clause 7(a),
(b), (c), (d), (e), (g), (i), (l) or (m) thereof shall entitle NCFC to take
action to enforce the NCFC Note or to take action related to the seizure,

replevin, liquidation or other disposition of Shared Collateral without the
prior written consent of Lobozzo. Notwithstanding the foregoing, if NCFC is
unable by operation of section 362 of the United States Bankruptcy Code or any
other insolvency stay provision, to give notice or commence the running of any
grace or cure period under Section 7 of the NCFC note, then the giving of such
notice and/or the commencement of such cure period shall be deemed to have
occurred on the date any one or more of the specified events (other than the
giving of notice) enumerated in Section 7 shall have occurred, so long as any
otherwise-required written notice shall have been given to Lobozzo.

     5. If an Event of Default exists pursuant to clause 7(a) or 7(h) of the
NCFC Note and (i) all scheduled payments of 

                                       4
                                                            Page 94 of 207 Pages
<PAGE>


Indebtedness are current and (ii) no Event of Default exists pursuant to clause
7(d) of the NCFC Note, NCFC agrees that it will not take any action to enforce
its rights under the Pledge Agreement or the Lobozzo Guaranty until October 10,
1999. Notwithstanding the foregoing, if NCFC is unable by operation of section
362 of the United States Bankruptcy Code or any other insolvency stay provision,
to give notice or commence the running of any grace or cure period under Section
7 of the NCFC note, then the giving of such notice and/or the commencement of
such cure period shall be deemed to have occurred on the date of the specified
events (other than the giving of notice) enumerated in Section 7 shall have
occurred, so long as such written notice shall have been given to Lobozzo.

     6. This Intercreditor Agreement shall be governed by the internal laws of
the State of New York without regard to the principles of conflicts of laws and
shall be binding upon the parties hereto and their respective successors and
assigns.

     7. This Intercreditor Agreement may not be amended by any party except in
writing signed by all the parties hereto. 

     8. This Intercreditor Agreement is solely for the benefit of the parties
hereto and their respective successors and assigns and no other person shall
have any right, benefit or interest under, or because of the existence of this
Intercreditor Agreement.

                                       5
                                                            Page 95 of 207 Pages
<PAGE>


     9. This Intercreditor Agreement may be executed in one or more
counterparts, each of which shall be deemed an original, and all of which
together shall constitute one and the same instrument.

     10. In the event that, as a result of a lock box arrangement which exists
among DCI, DDI and NCFC, any checks or instruments of payment are received by
NCFC at its existing lock box, NCFC will take such checks or instruments as

agent for DCI, and, as soon as practicable, will take such steps as are
necessary to deliver by courier or overnight delivery service to such bank or
other recipient as DCI and DDI direct by written instructions to NCFC, all such
checks or instruments, uncashed and undeposited. The actual cost of any courier
or overnight delivery will be borne by DCI. In the event that Lobozzo ever
determines that the foregoing arrangement results in unacceptable delays in the
receipt of funds, the parties hereto agree to execute such documents as are
reasonably necessary to effectuate a transfer of funds in a more prompt manner.
In no event shall NCFC cash or deposit any checks or instrument received by it
as a result of such lock box arrangement or exercise in any way any right of
offset against the assets of DCI or DDI or apply any such checks or instruments
to the payment of any obligations of DCI to NCFC.

                                       6
                                                            Page 96 of 207 Pages
<PAGE>


     11. Recognizing and in consideration of Lobozzo's undertakings as herein
set forth, NCFC hereby waives and releases Lobozzo and his representatives,
attorneys, agents, and employees from any liability, suit, damage, claim, loss,
or expense of any kind or nature whatsoever and howsoever arising out of or
relating to Lobozzo's acts or omissions with respect to NCFC or any of its
lending relationships with the Borrower arising on or before the date hereof;
provided, however, that specifically excepted from the terms of the release set
forth in this paragraph 11 shall be the obligations of Lobozzo pursuant to a
Pledge Security Agreement of even date herewith between Lobozzo and NCFC.

     11. No provision contained in this Intercreditor Agreement nor in any other
document executed between or amongDCI, NCFC or Lobozzo shall constitute, or be
construed to be or to create, a partnership, joint venture or other non-lending
relationship between DCI, NCFC or Lobozzo or any of them. DCI, NCFC and Lobozzo
specifically acknowledge that no such relationship is intended hereby and that
NCFC has entered into this Intercreditor Agreement and all documents entered
into and in connection with this Intercreditor Agreement solely in its capacity
as lender to DCI.

                                       7
                                                            Page 97 of 207 Pages
<PAGE>


     IN WITNESS WHEREOF, NCFC and Lobozzo have caused this Intercreditor
Agreement to be executed, intending to be legally bound, as of the date first
above written.

                                   NATIONAL CANADA FINANCE CORP.

                                   By: /s/ E. Lynn Forgash
                                       ----------------------------------
                                       Name:
                                       Title:

                                   /s/ Joseph M. Lobozzo II

                                   --------------------------------------
                                   Joseph M. Lobozzo II

     The undersigned acknowledge receipt of a copy of the above Intercreditor
Agreement and agree to, and are entitled to rely upon, the terms thereof.


                                   DELTA COMPUTEC INC.

                                   By: /s/ Michael Julian
                                       ----------------------------------
                                       Name:
                                       Title:

                                   DELTA DATA NET, INC.


                                   By:  /s/ Michael Julian
                                       ----------------------------------
                                       Name:
                                       Title:

                                       8
                                                            Page 98 of 207 Pages


<PAGE>
       THIS DOCUMENT IS A COPY OF THE EXHIBIT FILED ON OCTOBER 24, 1996
             PURSUANT TO A RULE 201 TEMPORARY HARDSHIP EXEMPTION.

                              AMENDED AND RESTATED
                               SECURITY AGREEMENT
                               ------------------


     THIS AMENDED AND RESTATED SECURITY AGREEMENT is made this 10th day of
October 1996 by and between DELTA COMPUTEC INC., a New York corporation with its
principal office and place of business at 900 Huyler Street, Teterboro, New
Jersey 07608 ("Debtor"), and NATIONAL CANADA FINANCE CORP., a Delaware
corporation with an office and place of business at 125 West 55th Street, New
York, New York 10019 ("Secured Party").

                              W I T N E S S E T H :

     WHEREAS, Debtor and Delta Data Net, Inc. ("DDI") executed and delivered to
Secured Party a General Security Agreement dated April 1, 1994 (the "1994
Security Agreement"); and

     WHEREAS, on the date hereof, Secured Party is assigning to Joseph M.
Lobozzo II ("Lobozzo") a portion of its rights under the 1994 Security
Agreement, including all rights with respect to DDI; and

     WHEREAS, to the extent not assigned to Lobozzo, Debtor and Secured Party
desire to amend and restate the 1994 Security Agreement in its entirety; and

     NOW, THEREFORE, Debtor and Secured Party agree as follows:

     1. Security Interest. Debtor hereby reaffirms and grants to Secured Party a
security interest ("Security Interest") in all of Debtor's Spare Parts Inventory
(as such term is defined below) of whatever kind and type and wherever located,
whether now owned or hereafter acquired (collectively, "Collateral"). "Spare
Parts Inventory" means the Debtor's inventory of piece parts and whole units
kept in reserve to support its contract customer base. Piece parts are used to
repair customers' units that fail. Whole units are kept on hand generally to be
used as loaners in the event that a customer's unit cannot be repaired promptly.
Contemporaneously with the execution and delivery of this Security Agreement,
Debtor will deliver to Secured Party a complete list of Debtor's Spare Parts
Inventory as of a date within five days prior to October 9, 1996.

     2. Indebtedness Secured. The Security Interest secures payment of a certain
Amended and Restated Promissory Note dated the date hereof between Debtor and
Secured Party in the original principal amount of $750,000 and any substitution
for or replacement or modification thereof, including principal, interest and
other amounts (i.e., attorney's fees, costs and expenses) due under the Amended
and Restated Promissory Note ("Indebtedness").

                                                            Page 99 of 207 Pages
<PAGE>



     3. Representations and Warranties of Debtor. Debtor represents and
warrants, and so long as any Indebtedness remains unpaid shall be deemed
continuously to represent and warrant, that:

          (a) Debtor is the owner of the Collateral free of all security
     interests or other encumbrances, except the Security Interest and except as
     shown on Schedule 3(a) annexed hereto (collectively, "Permitted
     Encumbrances"), if any;

          (b) Debtor is duly organized and validly existing under the laws of
     the State of New York and is duly qualified and in good standing in every
     jurisdiction in which failure to do so qualified would have a material
     adverse effect on its business or assets;

          (c) Debtor is authorized to enter into this Security Agreement and the
     execution, delivery and performance of this Agreement by Debtor will not
     violate, or be in contravention of, Debtor's certificate of incorporation,
     by-laws, or other corporate documents or any indenture, agreement or
     undertaking to which Debtor is a party or by which Debtor may be bound;

          (d) Debtor is engaged in business operations; Debtor's chief executive
     office is specified in the first paragraph of this Agreement; and Debtor's
     records concerning the Collateral are kept at one of the addresses
     specified on Schedule 3(e) of this Agreement;

          (e) All of the Collateral is located at one of the addresses specified
     on Schedule 3(e) to this Agreement; and

          (f) Any and all tradenames, division names, assumed names and other
     names under which Debtor transacts any part of its business are specified
     on Schedule 3(f) annexed hereto, if any.

     4. Covenants of Debtor. So long as any Indebtedness remains unpaid, Debtor:

          (a) Will defend the Collateral against the claims and demands of all
     other parties, except purchasers and lessees in the ordinary course of
     Debtor's business; will keep the Collateral free from all security
     interests or other encumbrances, except the Security Interest and except as
     shown of Schedule 3(a) hereto; and, except with respect to the sale or
     lease of Collateral in the ordinary course of Debtor's business, will not
     sell, transfer, lease, assign, deliver or otherwise dispose of any
     Collateral or any interest therein, or move the Collateral to any location
     except those specified on Schedule 3(e) without the prior written consent
     of Secured Party;

                                       2
                                                           Page 100 of 207 Pages
<PAGE>


          (b) Will keep, in accordance with generally accepted accounting
     principles consistently applied, accurate and complete records concerning
     the Collateral; at Secured Party's request, will mark any and all such
     records to indicate the Security Interest; and will permit Secured Party or

     its agents at any reasonable time during regular business hours to inspect
     the Collateral and to audit and make extracts from such records or any of
     Debtor's books, ledgers, reports, correspondence or other records;

          (c) Will notify Secured Party promptly in writing of any change in
     Debtor's chief executive office, of any change in the address at which the
     Collateral or records concerning the Collateral are kept and of any change
     in Debtor's name, identity or corporate structure;

          (d) Will keep the Collateral in good condition and repair; and will
     not use the Collateral in violation of any provisions of this Security
     Agreement, of any applicable statute, regulation or ordinance or of any
     policy insuring the Collateral;

          (e) Will pay all taxes, assessments and other charges of every nature
     which may be levied or assessed against the Collateral; will insure the
     Collateral against risks, and in coverage, form and amount, satisfactory to
     Secured Party, and, will cause each policy to be payable additionally to
     Secured Party and deliver each policy or certificate of insurance therefor
     to Secured Party; and

          (f) In connection herewith, will execute and deliver to Secured Party
     such financing statements and other documents, do such other things
     relating to the Security Interest as Secured Party may reasonably request,
     pay all costs of title searches and filing financing statements,
     assignments or other documents in all public offices requested by Secured
     Party; but will not, without the prior written consent of Secured Party,
     file or authorize or permit to be filed in any public office any financing
     statement naming Debtor as debtor and not naming Secured Party as secured
     party, except in connection with any Permitted Encumbrances.

     5. Verification of Collateral. Secured Party shall have the right to verify
all or any Collateral in any reasonable manner and through any medium Secured
Party may consider reasonably appropriate, and Debtor agrees to furnish all
assistance and information and perform any acts which Secured Party may
reasonably require in connection therewith.

     6. Payments. After the occurrence of an Event of Default, and the
expiration of any cure period related to such Event of Default, all payments on
and from Collateral received by Secured Party directly or from Debtor shall be
applied to the 

                                       3
                                                           Page 101 of 207 Pages
<PAGE>


Indebtedness in such order and manner and at such time as Secured Party shall,
in its sole discretion, determine.

     7. Events of Default.

          (a) The occurrence of an Event of Default under the Amended and
     Restated Promissory Note dated the date hereof between Debtor and Secured

     Party, as the same may be amended from time to time ("Note"), shall
     constitute an Event of Default hereunder.

          (b) Upon the happening of any Event of Default, and the expiration of
     any cure period related to such Event of Default, Secured Party's rights
     and remedies with respect to the Collateral shall be those of a Secured
     Party under the Uniform Commercial Code and under any other applicable law,
     as the same may from time to time be in effect, in addition to those rights
     granted herein and in any other agreement now or hereafter in effect
     between Debtor and Secured Party. Secured Party may require Debtor to
     assemble the Collateral and make it available to Secured Party at a place
     or places designated by Secured Party.

          (c) Without in any way requiring notice to be given in the following
     manner, Debtor agrees that any notice by Secured Party of sale or
     disposition of any Collateral, whether required by the Uniform Commercial
     Code or otherwise, shall constitute reasonable notice to Debtor if such
     notice is mailed by regular mail, postage prepaid, at least ten (10) days
     prior to such action, to the address of Debtor set forth in the first
     paragraph of this Security Agreement or to any other address which Debtor
     has specified in writing to Secured Party as the address to which notices
     hereunder shall be given to Debtor.

          (d) Debtor agrees to pay on demand all reasonable costs and expenses
     incurred by Secured Party in enforcing this Security Agreement, in
     realizing upon or protecting any Collateral, including, without limitation,
     if Secured Party retains counsel for advise, suit, insolvency proceedings
     or any of the above purposes, the reasonable attorneys' fees and expenses
     incurred by Secured Party.

     8. Miscellaneous.

          (a) Debtor hereby authorizes Secured Party, at Debtor's expense, to
     file such financing statement or statements relating to the Collateral
     without Debtor's signature thereon as Secured Party at its option may
     reasonably deem appropriate, and appoints Secured Party as Debtor's
     attorney-in-fact (without requiring Secured Party) to execute any such
     financing statement or statements in Debtor's name and to perform all other
     acts which Secured Party deems reasonably appropriate to perfect and

                                       4
                                                           Page 102 of 207 Pages
<PAGE>


     continue the Security Interest and to protect and preserve the Collateral.

          (b) Upon Debtor's failure to perform any of its duties hereunder,
     Secured Party may, but shall not be obligated to, perform any or all such
     duties in any reasonable manner, and Debtor shall pay an amount equal to
     the expense thereof to Secured Party forthwith upon written demand by
     Secured Party.

          (c) No course of dealing and no delay or omission by Secured Party in

     exercising any right or remedy hereunder shall operate as a waiver thereof
     or of any other right or remedy, and no single or partial exercise thereof
     shall preclude any other or further exercise thereof or the exercise of any
     other right or remedy. Secured Party may remedy any default by Debtor
     hereunder or within any reasonable manner without waiving the default
     remedied and without waiving any other prior or subsequent default by
     Debtor. All rights and remedies of, Secured Party hereunder are cumulative.

          (d) The rights and benefits of Secured Party hereunder shall, if
     Secured Party so agrees, inure to any party acquiring any interest in the
     Indebtedness or any part thereof.

          (e) Secured Party and Debtor as used herein shall include the heirs,
     executors or administrators, or successors or assigns, of those parties.

          (f) No modification, rescission, waiver, release or amendment of any
     provisions of this Security Agreement shall be binding except by a written
     agreement subscribed by Debtor and by Secured Party.

          (g) This Security Agreement is made under, and shall be governed by
     and construed under the laws of the State of New York applicable to
     contracts made and to be performed entirely within the State of New York
     and without giving effect to choice of law principles of the State of New
     York.

          (h) All terms, unless otherwise defined in this Security Agreement or
     in any financing statement, shall have the definitions set forth in the
     Uniform Commercial Code adopted in New York State, as the same may from
     time to time be in effect.

          (i) This Security Agreement is and is intended to be a continuing
     Security Agreement and shall remain in full force and effect until all of
     the Indebtedness shall be finally and irrevocably paid in full.

          (j) This Security Agreement amends and restates the 1994 Security
     Agreement except to the extent of the 

                                       5
                                                           Page 103 of 207 Pages
<PAGE>


     assignment by Secured Party of its rights in the 1994 Security Agreement to
     Lobozzo.

     9. Waiver of Jury Trial. The Debtor agrees that any suit, action or
proceeding, whether claim or counterclaim, brought or instituted by the Debtor
or any successor or assign of the Debtor on or with respect to this Security
Agreement or the dealings of the parties with respect hereto, shall be tried
only by a court and not by a jury. THE DEBTOR HEREBY KNOWING, VOLUNTARILY AND
INTENTIONALLY WAIVES ANY RIGHT TO A TRIAL BY JURY IN ANY SUCH SUIT, ACTION OR
PROCEEDING. Further, the Debtor waives any right it may have to claim or
recover, in any such suite, action or proceeding, any special exemplary,
punitive or consequential damages or any damages other than, or in addition to,

actual damages. THE DEBTOR ACKNOWLEDGES AND AGREES THAT THIS SECTION IS A
SPECIFIC AND MATERIAL ASPECT OF THIS AGREEMENT AND THAT THE SECURED PARTY WOULD
NOT ENTER INTO THIS DOCUMENT WITH THE DEBTOR IF THE WAIVERS SET FORTH IN THIS
SECTION WERE NOT A PART OF THIS DOCUMENT.

     10. Counterparts. This Security Agreement may be executed in several
counterparts, and all so executed shall constitute one agreement, binding on all
of the parties hereto, notwithstanding that all of the parties are not signatory
to the original or the same counterpart.

                                       DELTA COMPUTEC INC.

                                       By: /s/ Michael Julian
                                           -------------------------------------
                                       Name:
                                       Title:


                                       NATIONAL CANADA FINANCE CORP.


                                       By: /s/ E. Lynn Forgash
                                           -------------------------------------
                                       Name:
                                       Title:

                                       6
                                                           Page 104 of 207 Pages
<PAGE>


                                  SCHEDULE 3(a)
                                  -------------


                        Permitted Liens and Encumbrances

               Security Interest granted to Joseph M. Lobozzo II.

                                                           Page 105 of 207 Pages
<PAGE>


                                  SCHEDULE 3(e)
                                  -------------


                              Collateral Locations


Chicago                                      Rochester                 
                                                                       
DCI c/o Harris Bank                          366 White Spruce Boulevard
311 West Monroe                              Rochester, New York  14623

3rd Floor                                    
Chicago, Illinois  60606


Dallas                                       Teterboro                  
                                                                        
2100 N. Highway 360                          900 Huyler Street          
Suite 1804                                   Teterboro, New Jersey 07608
Grand Prarie, Texas 75050                    


Houston                                      Washington            
                                                                   
14515 Briar Hills Parkway                    122 Lafayette Avenue  
Suite 117                                    Laurel, Maryland 20707
Houston, Texas  77077                        


Philadelphia

1621 Loretta Avenue
Feasterville, Pennsylvania 19053

                                                           Page 106 of 207 Pages
<PAGE>

                                  SCHEDULE 3(f)
                                  -------------

                                   Trade Names


                                 1.  DCI
                          
                                 2.  The DCI Companies
                          
                                 3.  PC Reserve
                          
                                 4.  R & M Associates
                          
                                 5.  Data Net
                          
                                 6.  Data Span
                          
                                 7.  SAI/Delta
                          
                                 8.  Computer Support Inc.
                          
                                 9.  Delta CompuTec Inc.
                     
                                                           Page 107 of 207 Pages


<PAGE>
       THIS DOCUMENT IS A COPY OF THE EXHIBIT FILED ON OCTOBER 24, 1996
             PURSUANT TO A RULE 201 TEMPORARY HARDSHIP EXEMPTION.

                            PLEDGE SECURITY AGREEMENT
                            -------------------------


     THIS PLEDGE SECURITY AGREEMENT is made the 10th day of October 1996 by
JOSEPH M. LOBOZZO II, an individual with an office at 690 Portland Avenue,
Rochester, New York 14621 (the "Pledgor"), to NATIONAL CANADA FINANCE CORP., a
Delaware corporation, with an office for the conduct of business at 125 West
55th Street, New York, New York 10019 (the "Secured Party"). 

     SECTION 1. Pledge and Covenant with respect to Additional Security.

          (A) The Pledgor hereby pledges and grants to the Secured Party a first
     priority security interest in the following (the "Pledged Collateral") to
     secure the Obligations (as such term is defined in Section 2 below):
     480,000 common shares of Delta Computec Inc. ("DCI"), a New York
     corporation (the "Pledged Shares") and the certificates representing the
     Pledged Shares and any interest of the Pledgor in the entries on the books
     of any financial intermediary pertaining to the Pledged Shares, and all
     dividends, cash, options, warrants, rights, instruments and other property
     or proceeds from time to time received, receivable or otherwise distributed
     in respect of or in exchange for any or all of the Pledged Shares.

          (B) The Pledgor will use his reasonable best efforts to cause DCI to
     issue to the Secured Party before October 10, 1999 a warrant in
     substantially the form attached hereto as Exhibit A (the "DCI Warrant")
     approved by the shareholders of DCI for a number of common shares of DCI
     (the "Warrant Shares") which when added to the Pledged Shares, will give
     NCFC rights to 17 1/2% of the issued outstanding common shares of DCI. In
     the event that the Pledgor is unable to cause DCI to issue the DCI Warrant,
     the Pledgor agrees to assign to the Secured Party, pursuant to an
     assignment in substantially the form attached hereto as Exhibit B, a
     portion of the Pledgor's option issued to the Pledgor in May, 1995 (such
     portion assigned, the "Assigned Option"), such portion to be for a number
     of common shares of DCI (the "Option Shares") which when added to the
     Pledged Shares shall give NCFC rights to 17 1/2% of the issued and
     outstanding shares of DCI. Collectively, the Pledged Shares and the Warrant
     Shares or the Option Shares are referred to as the "NCFC Shares". The
     number of NCFC Shares is subject to adjustment as provided in Section 4
     below. The Secured Party acknowledges that it is possible that any Option
     Shares may be subject to dispute if they are issued to the Pledgor or the
     Secured Party. In such event, if the Pledgor is ever required to return any
     Option Shares to DCI, the Secured Party covenants and agrees to return
     those Option Shares if they are in the possession of, or under the control
     of, the Secured Party pursuant to this Agreement.

     SECTION 2. Obligations Secured. This Agreement secures, and the Pledged
Collateral is collateral security for, 

                                                           Page 108 of 207 Pages

<PAGE>


the prompt payment or performance in full when due, whether at stated maturity,
by acceleration or otherwise, of the Security Obligations, as that term is
defined in a certain Amended and Restated Promissory Note dated the date hereof
by and between DCI and the Secured Party (the "NCFC Note").

     SECTION 3. Delivery of NCFC Shares. All certificates or instruments
representing or evidencing the Pledged Shares, and, if ever issued, any Warrant
Shares or Option Shares, shall be delivered to the Secured Party and shall be
held by the Secured party in accordance with the terms of this Agreement, such
certificates or instruments shall be held by the Secured Party pursuant hereto
and shall be in suitable form for transfer by delivery, or shall be accompanied
by duly executed instruments of transfer or assignment in blank, all in form and
substance satisfactory to the Secured Party. From and after October 10, 1999, or
after an Event of Default and the expiration of any cure period related to such
Event of Default, the Secured Party shall have the right, at any time and
without notice to the Pledgor, to transfer to or to register in the name of the
Secured Party or any of its nominees any or all of the Pledged Shares, and, if
ever issued, any Warrant Shares or Option Shares. In addition, from and after
October 10, 1999, or after an Event of Default and the expiration of any cure
period related to such Event of Default, the Secured Party shall have the right
at any time to exchange certificates or instruments representing or evidencing
Pledged Shares, and, if ever issued, any Warrant Shares or Option Shares, for
certificates or instruments of smaller or larger denominations.

     SECTION 4. Adjustments in NCFC Shares.

          (A) The parties acknowledge that DCI may, from time to time, make
     partial prepayments on the NCFC Note to the effect that the Principal, as
     that term is defined in the NCFC Note, may be reduced in amount. In the
     event that any prepayments are ever made on the NCFC Note prior to October
     10, 1999 (a "Collateral Reducing Prepayment"), then, if the Pledged Shares
     and any Warrant Shares or Option Shares held by NCFC or to which NCFC may
     be entitled pursuant to the DCI Warrant or the Assigned Option constitute
     17 1/2% or more issued and outstanding shares of DCI, the amount of the
     Pledged Shares, and the amount of any such Warrant Shares or Option Shares,
     shall be reduced by a fraction, the numerator of which shall be the amount
     of any Collateral Reducing Prepayment, and the denominator of which shall
     be the face amount of the NCFC Note immediately prior to the Collateral
     Reducing Prepayment, the resulting number of whole shares calculated
     pursuant to this sentence being referred to as the "Returnable Shares".

          (B) If any Collateral Reducing Prepayment occurs, then, at the option
     of the Pledgor, the amount of any Returnable 

                                       2
                                                           Page 109 of 207 Pages
<PAGE>


     Shares which are, at the time of the Collateral Reducing Prepayment, a part
     of the NCFC Shares, shall be returned promptly to the Pledgor if such

     shares are Pledged Shares or Option Shares or to DCI if such shares are
     Warrant Shares.

          (C) Anything to the contrary in this Agreement notwithstanding, the
     NCFC Shares shall not, at any time, exceed seventeen and one-half percent
     (17.5%) of the issued and outstanding common shares of DCI in existence at
     any one time.

     SECTION 5. Representations and Warranties. The Pledgor represents, warrants
and agrees as follows:

          (A) The Pledgor is the legal and beneficial owner of all of the
     Pledged Shares free and clear of any lien except for the lien and security
     interest created by this Agreement.

          (B) The Pledgor has full power, authority and legal right to pledge
     all of the Pledged Collateral pursuant to this Agreement.

          (C) No consent of any other party (including, without limitation,
     stockholders or creditors of the Pledgor), and no consent, authorization,
     approval, or other action by, and no notice to or filing with, any
     governmental authority or regulatory body is required either (i) for the
     pledge by the Pledgor of the Pledged Collateral pursuant to this Agreement
     or for the execution, delivery or performance of this Agreement by the
     Pledgor or (ii) for the exercise by the Secured Party of the voting or
     other rights provided for in this Agreement or the remedies in respect of
     the Pledged Collateral provided for in this Agreement, except as may be
     required in connection with such disposition by laws affecting the offering
     and sale of securities generally.

          (D) The execution, delivery and performance by the Pledgor of this
     Agreement and consummation of the transactions contemplated hereby do not
     and will not contravene any law or any contractual obligation binding on or
     affecting the Pledgor, and do not and will not conflict with or be
     inconsistent with or result in any breach of any of the terms, covenants,
     conditions or provisions of, or constitute a default under, or result in
     the creation or imposition of (or the obligation to create or impose) any
     lien upon any of the property or assets of the Pledgor pursuant to the
     terms of any contractual obligation binding on or affecting the Pledgor,
     except for the lien created by this Agreement.

          (E) The Pledgor has duly executed and delivered this Agreement. This
     Agreement constitutes the legal, valid and binding obligation of the
     Pledgor, enforceable against the Pledgor in accordance with its terms,
     except as enforceability 

                                       3
                                                           Page 110 of 207 Pages
<PAGE>


     may be limited by bankruptcy, insolvency or other similar laws affecting
     the rights of creditors generally or by the application of general equity
     principles.


          (F) All of the Pledged Shares have been duly authorized and validly
     issued and are fully paid and non-assessable.

          (G) The pledge of the Pledged Collateral pursuant to this Agreement
     creates a valid and perfected first priority security interest in the
     Pledged Collateral securing the payment of the Obligations.

          (H) The Pledgor at all times shall be the sole beneficial owner of the
     Pledged Collateral.

          (I) All information set forth herein relating to the Pledged
     Collateral is accurate and complete in all material aspects.

     SECTION 6. Supplements, Further Assurances. The Pledgor agrees that at any
time and from time to time, at the expense of the Pledgor, the Pledgor shall
promptly execute and deliver all further instruments and documents, and take all
further action, that may be necessary or desirable, or that the Secured Party
may reasonably request, in order to perfect and protect any security interest
granted or purported to be granted hereby or to enable the Secured Party to
exercise and enforce its rights and remedies hereunder with respect to any
Pledged Collateral.

     SECTION 7. Voting Rights; Dividends; Etc. (A) As long as no Event of
Default, as defined below, and the expiration of any cure period related to such
Event of Default has occurred:

          (i) The Pledgor shall be entitled to exercise or direct the exercise
     of any and all voting and other consensual rights pertaining to the Pledged
     Collateral or any part thereof for any purpose not inconsistent with the
     terms of this Agreement;

          (ii) The Pledgor shall be entitled to receive and retain, and to
     utilize free and clear of the lien of this Agreement, any and all dividends
     and distributions paid in respect of the Pledged Collateral; provided that
     any and all dividends and other distributions paid in respect of the
     Pledged Collateral which are made in the form of equity securities shall be
     forthwith delivered to the Secured Party to hold as Pledged Collateral and
     shall, if received by the Pledgor, be received in trust for the benefit of
     the Secured Party, be segregated from the other property or funds of the
     Pledgor, and be forthwith 

                                       4
                                                           Page 111 of 207 Pages
<PAGE>


     delivered to the Secured Party as Pledged Collateral in the same form as so
     received (with any necessary endorsement); and

          (iii) The Secured Party shall, if necessary, upon written request of
     the Pledgor, from time to time execute and deliver (or cause to be executed
     and delivered) to the Pledgor all such proxies, dividend payment orders and
     other instruments as the Pledgor may reasonably request in order to permit

     the Pledgor to exercise the voting and other rights which it is entitled to
     exercise pursuant to Section 7(A)(i) above.

     (B) Upon the occurrence of an Event of Default, as defined below, and the
expiration of any cure period related to such Event of Default:

          (i) All rights of the Pledgor to exercise the voting and other
     consensual rights which it would otherwise be entitled to exercise pursuant
     to Section 7(A)(i) above shall cease, and all such rights shall thereupon
     become vested in the Secured Party which shall thereupon have the sole
     right at its option to exercise such voting and other consensual rights;

          (ii) All rights of the Pledgor to receive the dividends and
     distributions which it would otherwise be authorized to receive and retain
     pursuant to Section 7(A)(ii) above shall cease and all such rights shall
     thereupon become vested in the Secured Party who shall thereupon have the
     sole right to receive and hold as Pledged Collateral such dividends and
     distributions; and

          (iii) In order to permit the Secured Party to exercise the voting and
     other consensual rights which it may be entitled to exercise pursuant to
     Section 7(A)(i) above, the Pledgor shall, if necessary, upon written notice
     from the Secured Party, from time to time execute and deliver to the
     Secured Party appropriate proxies, dividend payment orders and other
     instruments as the Secured Party may reasonably request.

     SECTION 8. Transfers and Other Liens. The Pledgor agrees that it will not
(i) sell or otherwise dispose of, or grant any option or warrant with respect
to, any of the Pledged Collateral, or (ii) create or permit to exist any lien
upon or with respect to any of the Pledged Collateral, except for the liens and
security interests under or permitted by this Agreement.

     SECTION 9. The Secured Party Appointed Attorney-in-Fact. Upon the
occurrence of an Event of Default, and the expiration of any cure period related
to such Event of Default, the Pledgor hereby appoints the Secured Party the
Pledgor's attorney-in-fact, with full authority in the place and stead of the
Pledgor and in the name of the Pledgor or otherwise, 

                                       5
                                                           Page 112 of 207 Pages
<PAGE>


from time to time, to take any action and to execute any instrument which the
Secured Party may deem necessary or advisable to accomplish the purposes of this
Agreement, including, without limitation, to receive, endorse and collect, as
permitted by this Agreement, any instruments made payable to the Pledgor
representing any dividend or other distribution in respect of the Pledged
Collateral or any part thereof and to give full discharge for the same.

     SECTION 10. Secured Party May Perform. If the Pledgor fails to perform any
agreement contained herein after receipt of a written request to do so from the
Secured Party, the Secured Party may itself perform or cause performance of,
such agreement.


     SECTION 11. Reasonable Care. The Secured Party shall be deemed to have
exercised reasonable care in the custody and preservation of the Pledged
Collateral in its possession if the Pledged Collateral is accorded treatment
substantially equivalent to that which the Secured Party, in its individual
capacity, accords its own property consisting of negotiable securities, it being
understood that the Secured Party shall have no responsibility for (i)
ascertaining or taking action with respect to calls, conversions, exchanges,
maturities, tenders or other matters relative to any Pledged Collateral, unless
the Secured Party has received written notice of such matters, or (ii) taking
any necessary steps (other than steps taken in accordance with the standard of
care set forth above to maintain possession of the Pledged Shares) to preserve
rights against any person with respect to any Pledged Collateral.

     SECTION 12. Events of Default. The occurrence of any Event of Default under
the NCFC Note and the expiration of any cure period related to such Event of
Default shall constitute an "Event of Default" hereunder.

     SECTION 13. Remedies. Upon the occurrence of an Event of Default and the
expiration of any cure period related to such Event of Default:

          (A) (i) The Secured Party may in its sole discretion declare all or
     any part of the Security Obligations due and payable immediately without
     demand or notice of any kind irrespective of any other agreement or
     instrument fixing the maturity thereof.

          (ii) The Secured Party may exercise in respect of the Pledged
     Collateral, in addition to other rights and remedies provided for herein or
     otherwise available to it, all the rights and remedies of a secured party
     on default under the Uniform Commercial Code (the "Code") in effect in the
     State of New York at that time, and the Secured Party may also, without

                                       6
                                                           Page 113 of 207 Pages
<PAGE>


     notice, except as specified below, and to the extent permitted under
     applicable law, sell the Pledged Collateral or any part thereof in one or
     more parcels at public or private sale, at any exchange, broker's board or
     at any of the Secured Party's offices or elsewhere, for cash, on credit or
     for future delivery, and at such price or prices and upon such other terms
     as the Secured Party may deem commercially reasonable, irrespective of the
     impact of any of such sales on the market price of any of the Pledged
     Collateral. To the extent permitted under applicable law, the Secured Party
     may be the purchaser of any or all of the Pledged Collateral at any such
     sale. Each purchaser at any such sale shall hold the property sold
     absolutely free from any claim or right on the part of the Pledgor, and the
     Pledgor hereby waives (to the extent permitted by law) all rights of
     redemption, stay and/or appraisal which it now has or may at any time in
     the future have under any rule of law or statute now existing or hereafter
     enacted. The Pledgor agrees that, to the extent notice of sale shall be
     required by law, at least ten days' notice to the Pledgor of the time and
     place of any public sale or the time after which any private sale is to be

     made shall constitute reasonable notification. The Secured Party shall not
     be obligated to make any sale of Pledged Collateral regardless of notice of
     sale having been given. The Secured Party may adjourn any public or private
     sale from time to time by announcement at the time and place fixed
     therefor, and such sale may, without further notice, be made at the time
     and place to which it was so adjourned.

          (iii) The Pledgor recognizes that, by reason of certain prohibitions
     contained in the Securities Act of 1933, as amended (the "Securities Act"),
     and applicable state securities laws, the Secured Party may be compelled,
     with respect to any sale of all or any part of the Pledged Collateral and,
     if ever issued, any Warrant Shares or Option Shares, to limit purchases to
     those who will agree, among other things, to acquire the Pledged
     Collateral, the Warrant Shares or the Option Shares for their own account,
     for investment and not with a view to the distribution or resale thereof.
     The Pledgor acknowledges that any sales under such restrictions may be at
     prices and on terms less favorable to the Secured Party than those
     obtainable through a sale without such restrictions (including, without
     limitation, a public offering made pursuant to a registration statement
     under the Securities Act), and, notwithstanding such circumstances, agrees
     that any sale under such restrictions shall be deemed to have been made in
     a commercially reasonable manner and that the Secured Party shall have no
     obligation to engage in sales without such restrictions and no obligation
     to delay the sale of any Pledged Collateral, Warrant Shares or Option
     Shares for the period of time necessary to permit the issuer thereof to
     register it for a form of public sale requiring registration under the
     Securities Act or under applicable state securities laws, even if the
     Pledgor would agree to do so.

                                       7
                                                           Page 114 of 207 Pages
<PAGE>


     (B) If the Secured Party exercises its right to sell any or all of the
Pledged Collateral, and, if ever issued, any Warrant Shares or Option Shares,
upon written request, the Pledgor shall furnish and shall cause each issuer of
any Pledged Shares, and, if ever issued, any Warrant Shares or Option Shares, to
be sold hereunder from time to time to furnish to the Secured Party all such
information as the Secured Party may request in order to determine the number of
shares and other instruments included in the Pledged Collateral, the Warrant
Shares or the Option Shares which may be sold by the Secured Party as exempt
transactions under the Securities Act and pursuant to the rules of the
Securities and Exchange Commission thereunder, and under applicable state
securities laws, as all of the same are from time to time in effect.

     SECTION 14. Application of Proceeds. Any cash held by the Secured Party as
Pledged Collateral and all cash proceeds received by the Secured Party in
respect of any sale of, collection from, or other realization upon all or any
part of the Pledged Collateral pursuant to the exercise by the Secured Party of
its remedies as a secured creditor as provided in Section 13 of this Agreement
shall be applied promptly from time to time by the Secured Party to payment of
the Security Obligations.


     SECTION 15. [Reserved].

     SECTION 16. No Waiver. No failure on the part of the Secured Party to
exercise, and no course of dealing with respect to, and no delay in exercising,
any right, power or remedy hereunder shall operate as a waiver thereof; nor
shall any single or partial exercise by the Secured Party of any right, power or
remedy hereunder preclude any other or further exercise thereof or the exercise
of any other right, power or remedy. The remedies herein provided are to the
fullest extent permitted by law cumulative and are not exclusive of any remedies
provided by law. 

     SECTION 17. Amendments. None of the terms or provisions of this Agreement
may be amended, supplemented, waived or otherwise modified except by an
instrument in writing, duly executed by the Pledgor and the Secured Party.

     SECTION 18. Addresses for Notices. Any notices to the Pledgor or to the
Secured Party must also be given to DCI. Notices to the Pledgor, the Secured
Party and DCI must be in writing, refer specifically to this Agreement, and be
delivered by telecopy and confirmed by overnight mail or other nationally
recognized overnight delivery service directed to DCI at 900 Huyler Street,
Teterboro, New Jersey 07608, ATTENTION: PRESIDENT, and to the Pledgor or the
Secured Party, as the case may be, at the address of each stated on the first
page of this Agreement, and when forwarded to DCI, with a copy to Edwin M.
Larkin, Esq., 

                                       8
                                                           Page 115 of 207 Pages
<PAGE>


Jaeckle Fleischmann & Mugel, LLP, Suite 460, 39 State Street, Rochester, New
York 14614, when forwarded to the Pledgor, with a copy to Shawn M. Griffin,
Esq., Harris, Beach & Wilcox, LLP, 130 Main Street East, Rochester, New York
14604, and when forwarded to the Secured Party with a copy to Walter J.
Greenhalgh, Esq., Duane, Morris & Hecksher, One Riverfront Plaza, Suite 500,
Newark, New Jersey 07102. Notices shall be deemed delivered only when actually
received by an officer of DCI or the Secured Party, or by the Pledgor or the
addressee, as the case may be. Telecopy numbers are as follows: the Pledgor
(716) 342-6125; the Secured Party (212) 632-8775; DCI (201) 440-3985; Edwin M.
Larkin (716) 262-4133; Shawn M. Griffin (716) 232-6925; and Walter J.
Greenhalgh, Esq. (201) 733-9881.

     SECTION 19. Governing Law; Terms. This Agreement shall be governed by, and
construed and enforced in accordance with, the laws of the State of New York,
without regard to the principles of conflict of laws thereof.

     SECTION 20. Severability. The provisions of this Agreement are severable,
and if any clause or provision shall be held invalid or unenforceable in whole
or in part in any jurisdiction, then such invalidity or unenforceability shall
affect only such clause or provision, or part thereof, in such jurisdiction and
shall not in any manner affect such clause or provision in any other
jurisdiction, or any other clause or provision of this Agreement in any
jurisdiction.


     SECTION 21. WAIVER OF JURY TRIAL. The Pledgor agrees that any suit, action
or proceeding, whether claim or counterclaim, brought or instituted by the
Pledgor or any successor or assign of the Pledgor on or with respect to this
Agreement or the dealings of the parties with respect hereto, shall be tried
only by a court and not by a jury. THE PLEDGOR HEREBY KNOWING, VOLUNTARILY AND
INTENTIONALLY WAIVES ANY RIGHT TO A TRIAL BY JURY IN ANY SUCH SUIT, ACTION OR
PROCEEDING. Further, the Pledgor waives any right it may have to claim or
recover, in any such suit, action or proceeding, any special, exemplar, punitive
or consequential damages or any damages other than, or in addition to, actual
damages. THE PLEDGOR ACKNOWLEDGES AND AGREES THAT THIS SECTION IS A SPECIFIC AND
MATERIAL ASPECT OF THIS AGREEMENT AND THAT THE SECURED PARTY WOULD NOT ENTER
INTO THIS DOCUMENT WITH THE Pledgor IF THE WAIVERS SET FORTH IN THIS SECTION
WERE NOT A PART OF THIS DOCUMENT.

     SECTION 22. Headings Descriptive. The headings in this Agreement are for
purposes of reference only and shall not limit or otherwise affect the meaning
or construction of any provision of this Agreement.

                                       9
                                                           Page 116 of 207 Pages
<PAGE>


     SECTION 23. Reliance by DCI. The Pledgor and the Secured Party shall
deliver a copy of this Agreement to DCI which may rely upon it.

     SECTION 24. Negation of Partnership or Joint Venture. No provision
contained in this Agreement nor in any other document executed between or among
DCI, the Secured Party or the Pledgor shall constitute, or be construed to be or
to create, a partnership, joint venture or any other non-lending relationship
between DCI, the Secured Party or the Pledgor or any of them. DCI, the Secured
Party and the Pledgor specifically acknowledge that no such relationship is
intended hereby, and that the Secured Party has entered into this Agreement and
all documents entered into in connection with this Agreement solely in its
capacity as lender to DCI.

     SECTION 25. Counterparts. This Agreement may be executed in several
counterparts, and all so executed shall constitute one agreement, binding on all
of the parties hereto, notwithstanding that all the parties are not signatory to
the original or the same counterpart.

     IN WITNESS WHEREOF, the Pledgor and the Secured Party have caused this
Agreement to be duly executed and delivered, and intending to be legally bound,
as of the date first above written.


                                        /s/ Joseph M. Lobozzo II
                                        ----------------------------------------
                                        JOSEPH M. LOBOZZO II (the "Pledgor")


                                        NATIONAL CANADA FINANCE CORP.
                                             (the "Secured Party")



                                        By: /s/ E. Lynn Forgash
                                           -------------------------------------
                                        Name:
                                        Title:

     DELTA COMPUTEC INC. acknowledges receiving a copy of this Pledge Security
Agreement.

                                         DELTA COMPUTEC INC.

                                         By: /s/ Michael Julian
                                           -------------------------------------
                                             Name:
                                             Title:

                                       10
                                                           Page 117 of 207 Pages

<PAGE>
                               DELTA COMPUTEC INC.
                                900 Huyler Street
                           Teterboro, New Jersey 07608


National Canada Finance Corp.
125 West 55th Street
New York City, New York 10019

Dear Sirs:

     This letter agreement dated as of  __________________,  199__ (the "Warrant
Issuance  Date")  constitutes  a Warrant  Agreement  (the  "Warrant  Agreement")
between  Delta  Computec  Inc.  ("Delta"),  and National  Canada  Finance  Corp.
("NCFC").

     As partial  consideration for the agreement of NCFC to agree to accept from
Delta,  Delta's  Amended and Restated  Promissory Note in the amount of $750,000
(the "NCFC Note") in connection  with a buy-out (the  "Buy-out") of a portion of
the   indebtedness  of  Delta  by  Joseph  M.  Lobozzo  II  ("Lobozzo"),   which
indebtedness  existed prior to October 10, 1996,  Delta agreed to propose to its
shareholders  a resolution  to authorize  an increase in the  authorized  common
shares of Delta and the issuance of a Warrant.  This Warrant Agreement is issued
following  such amendment of the Delta  Restated  Certificate  of  Incorporation
authorizing  the  increase of common  shares,  and relates to a portion of those
additional common shares. It is acknowledged that this Warrant Agreement is part
of a negotiated  transaction between Delta and NCFC and it is not issued to NCFC
as an incentive to service or continued  service to Delta by NCFC. The documents
executed  by NCFC as a part  of the  Buy-out  are  referred  to as the  "Buy-out
Documents".

     This Warrant Agreement is hereby granted to NCFC on the following terms and
conditions:

     1. From the Warrant Issuance Date through October 9, 2001, NCFC shall have,
and is hereby granted,  this Warrant  Agreement which provides NCFC with a right
(the "Right") to purchase up to  __________________  common shares (the "Warrant
Shares") of Delta as determined  below. The number of Warrant Shares as to which
this Warrant Agreement shall apply shall be the number of common shares of Delta
which,  when added to the number of Pledged  Shares  held by NCFC  pursuant to a
certain Pledge Security  Agreement dated October 10, 1996,  equals seventeen and
one-half  percent  (17.5%)  of  Delta's  issued and  outstanding  common  shares
(including the Warrant Shares),  as of the date of the exercise of this Warrant,
subject to reduction as determined  below.  NCFC may exercise the Right in whole
or in part from time to time but not in amounts less than 100,000  common shares
per exercise.

                                                           Page 118 of 207 Pages
<PAGE>


     2. (a) NCFC  acknowledges  that Delta may, from time to time,  make partial
prepayments  on the NCFC Note,  to the effect that the  Principal (as defined in

the NCFC Note) may be reduced in amount.  In the event that any  prepayments are
ever made on the NCFC Note prior to the first day of the thirty-seventh month (a
"Collateral Reducing  Prepayment"),  then, if the Pledged Shares and any Warrant
Shares ever  constitute  more than seventeen and one-half  percent  (17.5%),  or
more,  of the issued  and  outstanding  common  shares of Delta  (including  the
Warrant Shares), the amount of the Warrant Shares as to which this Warrant shall
be  applicable  shall be reduced by a fraction,  the numerator of which shall be
the amount of any Collateral Reducing  Prepayment,  and the denominator of which
shall be the  Principal  face amount of the NCFC Note  immediately  prior to the
Collateral  Reducing  Prepayment,  the resulting  number of whole Warrant Shares
calculated  pursuant  to this  sentence  being  referred  to as the  "Returnable
Shares".

          (b) If any Collateral Reducing Prepayment occurs,  then, at the option
     of Delta,  this  Warrant  shall be  promptly  returned to Delta by NCFC for
     reissuance,  and, upon reissuance of the Warrant,  the amount of Returnable
     Shares  shall be  deducted  from the  amount  of  Warrant  Shares  shown in
     paragraph 1 of this Warrant.

     3. The cash exercise price (the "Cash Exercise  Price") for the exercise of
the Right and for the purchase of the Warrant Shares,  shall be the payment of a
price  calculated  by  multiplying  Ten  Dollars  ($10.00)  by a  fraction,  the
numerator of which shall be the number of Warrant Shares and the  denominator of
which shall be 11,440,475, such amount to be filled in at this space at the time
of issuance of this Warrant Agreement  ($____.___),  such Cash Exercise Price to
be payable by  certified  or bank check or money  order  payable to the order of
Delta. The consideration  (the "NCFC  Consideration")  provided to Delta by NCFC
pursuant  to the  transactions  set  forth in the  Buy-out  Documents  is also a
portion of the exercise price of the Right.

     4. The Board of  Directors  of Delta has  determined  that the fair  market
value of the NCFC  Consideration,  plus the Cash Exercise Price exceeds the fair
value and the par value of the Warrant  Shares,  although no  representation  is
made that the Warrant Shares will not be assessable.

     5. Delta acknowledges that it has reserved for issuance a sufficient number
of Delta's  authorized  and unissued  common  shares,  representing  the Warrant
Shares and that it will keep the Warrant Shares reserved during the life of this
Warrant Agreement.

     6. The NCFC may exercise the Right by sending to Delta a written  notice of
exercise which notice is received at any time prior to October 10, 2001.

     7. This Warrant  Agreement,  and the Warrant  Shares,  are each  restricted
securities  and are subject to the  provisions  of  paragraphs 9, 10 and 11 of a
certain Lobozzo  Commitment Letter 

                                                           Page 119 of 207 Pages
<PAGE>


dated May 1, 1995, a copy of which is annexed hereto.

     8.  Delta  agrees  to pay any and all  fees or  costs  associated  with the

exercise of the Right, including, if necessary,  any listing fee for the Warrant
Shares with the National  Association of Securities  Dealers,  Inc., and any and
all state, federal or other fees or costs associated therewith.

     9. If, and whenever, before the expiration of the Right, Delta shall effect
a subdivision or consolidation  of its common shares,  or the payment of a share
dividend on its common shares without  receipt of  consideration  by Delta,  the
number of common  shares  with  respect  to which  the Right may  thereafter  be
exercised:  (i) in the event of an increase in the number of outstanding  common
shares, shall be proportionately increased; and (ii) in the event of a reduction
in the number of outstanding common shares, shall be proportionately reduced.

     10. This  Warrant  Agreement  is binding on, and shall inure to the benefit
of, Delta and NCFC, and each of their  successors  and assigns.  If this Warrant
Agreement is ever held by an individual,  it is  transferrable by will or by the
laws of descent and  distribution.  This  Warrant  Agreement  is  otherwise  not
transferrable without the prior written consent of Delta, which consent will not
be unnecessarily  withheld,  except that this Warrant  Agreement shall be freely
assignable by NCFC as soon as it becomes exercisable by NCFC.

     11. This Warrant  Agreement  supersedes any and all prior  discussions  and
negotiations with regard to the subject matter hereof and may only by amended by
a writing executed by Delta and NCFC.

     12. This Warrant Agreement will be governed by the laws of the State of New
York without consideration of its conflicts of laws principles.

                                             Very truly yours,

                                             DELTA COMPUTEC INC.

                                             By: _____________________
                                                 John DeVito
                                                 President
Accepted and agreed to:

NATIONAL CANADA FINANCE CORP. ("NCFC")

By: _______________________________
    Name:
    Title:

                                                           Page 120 of 207 Pages

<PAGE>
                               DELTA COMPUTEC INC.
                                900 Huyler Street
                           Teterboro, New Jersey 07608

                                October 10, 1996

Mr. Joseph M. Lobozzo
690 Portland Avenue
Rochester, New York 14621

Dear Mr. Lobozzo:

     This letter  agreement  constitutes  an Amended and  Restated  Stock Option
Agreement (the "Option Agreement")  between Delta Computec Inc.  ("Delta"),  and
Joseph M. Lobozzo II (the "Optionee"),  and this Option Agreement  supersedes in
part a certain  Stock  Option  Agreement  dated May 1, 1996,  between  Delta and
Joseph M. Lobozzo II (the "Original Option") which entitled Joseph M. Lobozzo II
("Lobozzo")  to  acquire up to  11,440,475  common  shares of Delta.  The common
shares  covered  by this  Option  Agreement  constitute  a portion of the common
shares as to which the Original Option applied.

     This Option  Agreement is issued as  consideration  for Lobozzo agreeing to
assist Delta (and their affiliated  companies) in their  relationship with their
commercial  lender,  National  Canada  Finance  Corp.  ("NCFC"),  and as further
consideration for Lobozzo's agreement to provide the Lobozzo Commitment to Delta
as set forth in a letter agreement between Delta and Lobozzo of May 1, 1995 (the
"Lobozzo  Commitment  Letter"),   and  as  further   consideration  for  Lobozzo
purchasing a portion of Delta's obligation to NCFC as of October 10, 1996, Delta
has issued to  Optionee  this Option  Agreement.  It is  acknowledged  that this
Option Agreement is part of a negotiated  transaction  between Delta and Lobozzo
and it is not issued to Optionee as an incentive to service or continued service
to Delta by Optionee.

     This Option  Agreement is hereby granted to Optionee on the following terms
and conditions:

     1. From May 20, 1995 through  October 9, 2001,  Optionee shall have, and is
hereby  granted,  an option (the  "Option") to purchase up to  3,020,000  common
shares,  subject to  adjustment  as described  below (the "Option  Shares"),  of
Delta.  The  Optionee  may  exercise the Option in whole or in part from time to
time but not in amounts less than 100,000 common shares per exercise.

     2. The cash exercise price (the "Cash Exercise  Price") for the exercise of
the Option and for the purchase of the Option Shares,  shall be the payment of a
price  calculated  by  multiplying  Ten  Dollars  ($10.00)  by a  fraction,  the
numerator  of which  shall be 

                                       13
                                                           Page 121 of 207 Pages
<PAGE>


the number of Option  Shares as of the date of exercise and the  denominator  of

which shall be 11,440,475,  such amount calculated as of the date of issuance of
this Option  Agreement  being  $2.64,  and, if the number of Option  Shares ever
changes,  such amount to be  recalculated  and  restated at that time.  The Cash
Exercise  Price is to be paid by certified or bank check or money order  payable
to the order of Delta. The  consideration  provided to Delta by Lobozzo pursuant
to the  transactions  set forth in the Lobozzo  Commitment  Letter (the "Lobozzo
Consideration") is also a portion of the exercise price of this Option.

     3. The Board of  Directors  of Delta has  determined  that the fair  market
value of the Lobozzo Consideration plus the Cash Exercise Price exceeds the fair
value and the par value of the Option Shares, although no representation is made
that the Option Shares will not be assessable.

     4. Delta acknowledges that it has reserved for issuance a sufficient number
of Delta's authorized and unissued common shares, representing the Option Shares
and that it will keep the Option Shares  reserved during the life of this Option
Agreement.

     5. The  Optionee  may  exercise  this  Option by sending to Delta a written
notice of  exercise  which  notice is  received at any time prior to October 10,
2001.

     6. This  Option  Agreement,  and the  Option  Shares,  are each  restricted
securities  and are subject to the  provisions of paragraphs 9, 10 and 11 of the
Lobozzo Commitment Letter, a copy of which is annexed hereto.

     7.  Delta  agrees  to pay any and all  fees or  costs  associated  with the
exercise of the Option,  including, if necessary, any listing fee for the Option
Shares with the National  Association of Securities  Dealers,  Inc., and any and
all state, federal or other fees or costs associated therewith.

     8. If, and  whenever,  before the  expiration  of the  Option,  Delta shall
effect a subdivision or consolidation of its common shares,  or the payment of a
share dividend on its common shares without receipt of  consideration  by Delta,
the number of common shares with respect to which this Option may  thereafter be
exercised:  (i) in the event of an increase in the number of outstanding  common
shares, shall be proportionately increased; and (ii) in the event of a reduction
in the number of outstanding common shares, shall be proportionately reduced.

     9. This Option  Agreement is binding on, and shall inure to the benefit of,
Delta and the Optionee,  and each of their  successors and assigns.  This Option
Agreement shall not terminate in the event of the death or disability of Lobozzo
or as a result of his ceasing to be an officer or director of Delta. This Option
if  transferrable,  if  Optionee  is an  individual,  by will or by the  laws of
descent and distribution,  but is otherwise not 

                                                           Page 122 of 207 Pages
<PAGE>


transferrable without the prior written consent of Delta, which consent will not
be unnecessarily withheld.  Delta hereby grants its consent to the assignment of
this Option  Agreement to NCFC provided  that,  at the time of such  assignment,
Optionee,  NCFC and Delta each execute that certain Assignment Agreement drafted

October 10, 1996, to which a copy of this Option Agreement is annexed as Exhibit
A. In addition, Delta hereby consents to the assignment of this Option Agreement
by NCFC at and after such time as it may be exercisable.

     10. This Option Agreement  supersedes:  (i) the May 1, 1995 Original Option
between  Lobozzo  and  Delta;  and  (ii)  any  and  all  prior  discussions  and
negotiations with regard to the subject matter hereof and may only by amended by
a writing executed by Delta and Optionee.

     11. This Option  Agreement will be governed by the laws of the State of New
York without consideration of its conflicts of laws principles.

                                         Very truly yours,

                                         DELTA COMPUTEC INC.



                                         By: ____________________
                                             John DeVito
                                             President

Accepted and agreed to:



_______________________________ ("Optionee")

                                                           Page 123 of 207 Pages


<PAGE>
       THIS DOCUMENT IS A COPY OF THE EXHIBIT FILED ON OCTOBER 24, 1996
             PURSUANT TO A RULE 201 TEMPORARY HARDSHIP EXEMPTION.

                              ASSIGNMENT AGREEMENT


     THIS ASSIGNMENT  AGREEMENT is made the ____ day of  _____________,  199_ by
\and\ among JOSEPH M. LOBOZZO II  ("Lobozzo"),  NATIONAL  CANADA  FINANCE  CORP.
("NCFC") and DELTA COMPUTEC INC. ("Delta"), a New York corporation.

                                    RECITALS

     A.   Delta has  granted  Lobozzo  options  to  purchase  11,440,475  of its
          authorized but unissued shares of common stock (the "Option  Shares"),
          which options are evidenced by Amended and Restated Option  Agreements
          between  Delta and  Lobozzo  of even date  herewith  (individually  an
          "Option Agreement" and collectively the "Option Agreements").

     B.   On the date  hereof  Delta,  Lobozzo  and NCFC  have  entered  into an
          agreement  pursuant to which  Lobozzo  has  purchased a portion of the
          indebtedness  due from Delta to NCFC, and $750,000 of  indebtedness to
          NCFC from Delta remains due and payable to NCFC,  which  $750,000 debt
          is evidenced by an Amended and Restated  Promissory Note dated October
          10, 1996 (the "NCFC Note").

     C.   In  connection  with this  transaction  Lobozzo has agreed to assign a
          portion of his rights under the Option Agreements to NCFC.

     NOW THEREFORE, the parties agree as follows:

     1.  Lobozzo  hereby  assigns  and  transfers  the entire  right,  title and
interest in the Option  Agreement  attached hereto as Exhibit A benefically held
by Lobozzo to NCFC (such right,  title and interest  hereinafter  referred to as
the  "Assigned  Option").  The  exercise of the  Assigned  Option  shall  become
effective  only if the NCFC Loan is not repaid in full  prior to the  earlier to
occur of: (i) the occurrence of an Event of Default (which is not cured upon the
expiration of any applicable cure period) under the NCFC Note; or (ii) the first
day of the thirty-seventh  month after the date hereof. NCFC agrees that it will
not  exercise  the  Assigned  Option  until the  earlier  to occur  of:  (i) the
occurrence of an Event of Default (which is not cured upon the expiration of any
applicable  cure  period)  under  the NCFC  Note;  or (ii) the  first day of the
thirty-seventh month after the date hereof (the "Exercise Date").

                                                           Page 124 of 207 Pages
<PAGE>


     2. It is  understood  that the  Assigned  Option  represents  the  right to
purchase  17.5% of Delta's  common  shares on a fully  diluted  basis.  The term
"fully  diluted basis" as used in this  Agreement  means,  during the earlier to
occur of the period of time that the Assigned Option remains unexercised, or the
date that the NCFC Loan is paid in full,  that NCFC shall be entitled to receive
17.5% of all issued and  outstanding  common  shares  for  shares  reserved  for

issuance pursuant to any existing option or warrant of the currently  authorized
20,000,000 common shares of Delta.

     3. Delta approves of and consents to the assignment of the Assigned  Option
\pursuant to this  Agreement\,  but does not consent to any other  assignment or
transfer of the  Assigned  Option.  In addition to the  Assigned  Option,  Delta
covenants  and agrees  with NCFC  that,  in the event the Delta  Certificate  of
Incorporation is ever amended or restated by a vote of the Delta shareholders to
increase the authorized common shares over the existing 20,000,000 common shares
and, as a result of such  amendment  or  restatement,  the Board of Directors of
Delta issues common shares,  options or warrants for action taken after the date
of this  Agreement,  then:  (i) if any such issuance is to Lobozzo,  JML Optical
Industries  ("JML"),  or  affiliates  thereof,  Delta  agrees  to issue to NCFC,
without any cost to NCFC,  common shares,  warrants or options equal to 17.5% of
the amount of common  shares,  options or  warrants  issued to  Lobozzo,  JML or
affiliates  thereof or (ii) if any such  issuance  is to  persons  ("Independent
Third Parties") other than Lobozzo,  JML or affiliates thereof,  Delta agrees to
permit NCFC to purchase any such common shares,  options or warrants at the same
time and for the same consideration as are paid to Delta for the issuance of any
such common shares, options or warranties to any Independent Third Parties.

                                                           Page 125 of 207 Pages
<PAGE>


     4. All rights of NCFC to receive  any common  shares,  warrants  or options
pursuant to this  Agreement,  including but not limited to the Assigned  Option,
are referred to as the "NCFC Equity Acquisition Rights."

     5.  NCFC  acknowledges  and  agrees  that the  acquisition  of NCFC  Equity
Acquisition  Rights is subject to reduction upon prepayments on the NCFC Note as
provided in Section 8.

     6. In addition to those NCFC Equity  Acquisition Rights set forth above, in
the event that Delta raises capital in any offering of additional equity,  Delta
shall  immediately  apply fifty percent (50%) of the proceeds of such additional
equity to the NCFC Note.

     7. If the NCFC Note  remains  unpaid as of the Exercise  Date,  then at any
time after the Exercise  Date,  NCFC may exercise  the Assigned  Option  without
restriction  and the call  feature of the Warrant set forth in Section 8 will be
cancelled.

     8. If a portion of the NCFC Note,  but not the entire NCFC Note, is paid as
of the date any Quarterly  Premium Payment (as defined in <________)>  \the NCFC
Note)\  accrues (the "QPP Reduction  Ratio Date"),  or on the Exercise Date (the
"Option Reduction Ratio Date"), then:

     a.   in the case of  Quarterly  Premium  Payments,  the  Quarterly  Premium
          Payment accruing as of any QPP Reduction Ratio Date will be reduced by
          the proportion that all  prepayments  made to the NCFC Note as of that
          QPP  Reduction  Ratio Date (the "QPP  Prepayment  Total") bears to the
          original $750,000  principal amount of the NCFC Note. The ratio of the
          QPP Prepayment Total to the original $750,000  principal amount of the

          NCFC Loan shall be referred to as the "QPP Reduction Ratio"; < and >

                                                           Page 126 of 207 Pages
<PAGE>


     b.   in the case of the  exercise  of the  Assigned  Option,  the amount of
          common  shares to be issued under the Assigned  Option will be reduced
          by multiplying: (i) the number of common shares equal to seventeen and
          one-half  percent  (17.5%)  of the  common  shares of Delta on a fully
          diluted  basis as of any NCFC Warrant  Exercise  Date; by (ii) the QPP
          Reduction Ratio\; and\<.>

     c.   in the event that any NCFC  Equity  Acquisition  Right ever  occurs in
          addition to the Assigned  Option,  the parties  acknowledge  and agree
          that the formula  providing  for the reduction of the amount of common
          shares to which the Assigned  Option shall be  applicable  pursuant to
          <under>  a. and b.  above,  shall be equally  applicable,  at the same
          times,  to all such other types of NCFC Equity  Acquisition  Rights as
          may ever be issued to NCFC by Lobozzo, by JML or by Delta.

     9. In consideration of its  unconditional  right to exercise the Warrant on
or after the first day of the thirty seventh month, NCFC shall be deemed to have
waived its right to collect any  accrued  Quarterly  Premium  Payments as of the
first day of the thirty seventh month.

     10. This Agreement  shall be in interpreted and enforced in accordance with
the laws of New York.

                                                           Page 127 of 207 Pages
<PAGE>


     11.  This  Agreement  is binding  on, and shall inure to the benefit of the
parties and each of their  successors  and  assigns.  This  Agreement  shall not
terminate in the event of the death or  disability  of Lobozzo or as a result of
his ceasing to be an officer or director of Delta. This Agreement supersedes any
and all prior  discussions  and  negotiations  with regard to the subject matter
hereof and may only be amended by a writing executed by all parties.

     IN WITNESS WHEREOF,  the parties hereof executed this Agreement on the date
first above written.



                                       _________________________________________
                                       JOSEPH M. LOBOZZO II


                                       NATIONAL CANADA FINANCE CORP.


                                       By ______________________________________
                                       Name:

                                       Title:

                                                           Page 128 of 207 Pages
<PAGE>

                                       DELTA COMPUTEC INC.


                                       By ______________________________________
                                       Name:
                                       Title:

                                                           Page 129 of 207 Pages


<PAGE>
       THIS DOCUMENT IS A COPY OF THE EXHIBIT FILED ON OCTOBER 24, 1996
             PURSUANT TO A RULE 201 TEMPORARY HARDSHIP EXEMPTION.

                               DELTA COMPUTEC INC.
                                900 Huyler Street
                           Teterboro, New Jersey 07608

                                October 10, 1996

Mr. Joseph M. Lobozzo
690 Portland Avenue
Rochester, New York 14621

Dear Mr. Lobozzo:

     This letter  agreement  constitutes  an Amended and  Restated  Stock Option
Agreement (the "Option Agreement")  between Delta Computec Inc.  ("Delta"),  and
Joseph M. Lobozzo II (the "Optionee"),  and this Option Agreement  supersedes in
part a certain  Stock  Option  Agreement  dated May 1, 1996,  between  Delta and
Joseph M. Lobozzo II (the "Original Option") which entitled Joseph M. Lobozzo II
("Lobozzo")  to  acquire up to  11,440,475  common  shares of Delta.  The common
shares  covered  by this  Option  Agreement  constitute  a portion of the common
shares as to which the Original Option applied.

     This Option  Agreement is issued as  consideration  for Lobozzo agreeing to
assist Delta (and their affiliated  companies) in their  relationship with their
commercial  lender,  National  Canada  Finance  Corp.  ("NCFC"),  and as further
consideration for Lobozzo's agreement to provide the Lobozzo Commitment to Delta
as set forth in a letter agreement between Delta and Lobozzo of May 1, 1995 (the
"Lobozzo  Commitment  Letter"),   and  as  further   consideration  for  Lobozzo
purchasing a portion of Delta's obligation to NCFC as of October 10, 1996, Delta
has issued to  Optionee  this Option  Agreement.  It is  acknowledged  that this
Option Agreement is part of a negotiated  transaction  between Delta and Lobozzo
and it is not issued to Optionee as an incentive to service or continued service
to Delta by Optionee.

     This Option  Agreement is hereby granted to Optionee on the following terms
and conditions:

     1. From May 20, 1995 through  October 9, 2001,  Optionee shall have, and is
hereby  granted,  an option (the  "Option") to purchase up to  8,420,475  common
shares,  subject to  adjustment  as described  below (the "Option  Shares"),  of
Delta.  The  Optionee  may  exercise the Option in whole or in part from time to
time but not in amounts less than 100,000 common shares per exercise.

     2. The cash exercise price (the "Cash Exercise  Price") for the exercise of
the Option and for the purchase of the Option Shares,  shall be the payment of a
price  calculated  by  multiplying  Ten  Dollars  ($10.00)  by a  fraction,  the
numerator  of which  shall be 

                                                           Page 130 of 207 Pages
<PAGE>



the number of Option  Shares as of the date of exercise and the  denominator  of
which shall be 11,440,475,  such amount calculated as of the date of issuance of
this Option  Agreement  being  $7.36,  and, if the number of Option  Shares ever
changes,  such amount to be  recalculated  and  restated at that time.  The Cash
Exercise  Price is to be paid by certified or bank check or money order  payable
to the order of Delta. The  consideration  provided to Delta by Lobozzo pursuant
to the  transactions  set forth in the Lobozzo  Commitment  Letter (the "Lobozzo
Consideration") is also a portion of the exercise price of this Option.

     3. The Board of  Directors  of Delta has  determined  that the fair  market
value of the Lobozzo Consideration plus the Cash Exercise Price exceeds the fair
value and the par value of the Option Shares, although no representation is made
that the Option Shares will not be assessable.

     4. Delta acknowledges that it has reserved for issuance a sufficient number
of Delta's authorized and unissued common shares, representing the Option Shares
and that it will keep the Option Shares  reserved during the life of this Option
Agreement.

     5. The  Optionee  may  exercise  this  Option by sending to Delta a written
notice of  exercise  which  notice is  received at any time prior to October 10,
2001.

     6. This  Option  Agreement,  and the  Option  Shares,  are each  restricted
securities  and are subject to the  provisions of paragraphs 9, 10 and 11 of the
Lobozzo Commitment Letter, a copy of which is annexed hereto.

     7.  Delta  agrees  to pay any and all  fees or  costs  associated  with the
exercise of the Option,  including, if necessary, any listing fee for the Option
Shares with the National  Association of Securities  Dealers,  Inc., and any and
all state, federal or other fees or costs associated therewith.

     8. If, and  whenever,  before the  expiration  of the  Option,  Delta shall
effect a subdivision or consolidation of its common shares,  or the payment of a
share dividend on its common shares without receipt of  consideration  by Delta,
the number of common shares with respect to which this Option may  thereafter be
exercised:  (i) in the event of an increase in the number of outstanding  common
shares, shall be proportionately increased; and (ii) in the event of a reduction
in the number of outstanding common shares, shall be proportionately reduced.

     9. This Option  Agreement is binding on, and shall inure to the benefit of,
Delta and the Optionee,  and each of their  successors and assigns.  This Option
Agreement shall not terminate in the event of the death or disability of Lobozzo
or as a result of his ceasing to be an officer or director of Delta. This Option
if  transferrable,  if  Optionee  is an  individual,  by will or by the  laws of
descent and distribution,  but is otherwise not 

                                                           Page 131 of 207 Pages
<PAGE>


transferrable without the prior written consent of Delta, which consent will not
be unnecessarily withheld.


     10. This Option Agreement  supersedes:  (i) the May 1, 1995 Original Option
between  Lobozzo  and  Delta;  and  (ii)  any  and  all  prior  discussions  and
negotiations with regard to the subject matter hereof and may only by amended by
a writing executed by Delta and Optionee.

     11. This Option  Agreement will be governed by the laws of the State of New
York without consideration of its conflicts of laws principles.


                                       Very truly yours,

                                       DELTA COMPUTEC INC.



                                       By: _____________________
                                           John DeVito
                                           President

Accepted and agreed to:



_______________________________ ("Optionee")

                                                           Page 132 of 207 Pages


<PAGE>
       THIS DOCUMENT IS A COPY OF THE EXHIBIT FILED ON OCTOBER 24, 1996
             PURSUANT TO A RULE 201 TEMPORARY HARDSHIP EXEMPTION.

             LIMITED NON-RECOURSE GUARANTY AND SURETYSHIP AGREEMENT

                                                 DATED: October 10, 1996

     To induce National Canada Finance Corp. (the "Lender") to enter into that
certain Amended and Restated Promissory Note (the "Restated Note") and related
restructuring and settlement documents (together with the Restated Note, the
"Restructuring Documents") dated the date hereof by and among the Lender and
Delta Computec Inc. (The "Borrower"), and to secure the observance, payment, and
performance of the Security Liabilities (as defined below), and with full
knowledge that the Lender would not enter into the Restructuring Documents
without this Limited Guaranty and Suretyship Agreement (together with any
amendments or modifications hereto in effect from time to time, the "Guaranty"),
which shall be a contract of suretyship, the Guarantor (as defined below),
intending to be legally bound hereby, agrees as follows:

                                   BACKGROUND
                                   ----------


     NOW, THEREFORE, for good and valuable consideration, the receipt and legal
sufficiency of which are hereby acknowledged, the Guarantor hereby agrees as
follows:

a.   Liabilities Secured. The Guarantor hereby guarantees the full, prompt, and
     unconditional performance of the Security Liabilities (as defined below),
     when and as the same shall become due, whether at the stated maturity date,
     upon the occurrence of an Event of Default under the Restated Note, by
     acceleration, or otherwise. This Guaranty is a primary obligation of the
     Guarantor and shall be a continuing inexhaustible Guaranty without
     limitation except that the Lender's recourse against the Guarantor shall be
     limited to amounts that can be realized by the Lender with respect to the
     Collateral (hereafter defined).

b.   Limitation of Guarantor's Liability. Notwithstanding anything to the
     contrary contained herein, Lender's recourse against Guarantor under this
     Guaranty shall be solely limited to foreclosing and/or exercising its other
     remedies against the Collateral under the Pledge Security Agreement.

c.   Definitions. As used herein, the following terms shall have the following
     meanings:

     i.   Collateral. The term "Collateral" means all property of the Guarantor
          subject to a pledge, lien or other encumbrance in favor of the Lender
          under the Pledge Security Agreement.

     ii.  Guarantor. The term "Guarantor" means Joseph M. Lobozzo II.

     iii. DCI Dollar Liabilities. The term "DCI Dollar Liabilities" means all
          Indebtedness of the Borrower as that term is defined in the NCFC Note.


     iv.  Security Liabilities. The term "Security Liabilities" shall have the
          meaning given to such term in the NCFC Note.

     v.   Loan Documents. The term "Loan Documents" means this Guaranty, the
          Restructure Documents and any and all credit accommodations, notes,
          loan agreements, and any other agreements and documents, now or
          hereafter existing, creating, evidencing, guarantying, securing or
          relating to any or all of the DCI Dollar Liabilities, together with
          all amendments, modifications, renewals, or extensions thereof.

     vi.  Liabilities. The term "Liabilities" means, collectively, the DCI
          Dollar Liabilities and the Security Liabilities.

     vii. NCFC Note. The term "NCFC Note" shall have the meaning given to such
          term in the Pledge Security Agreement.

                                                           Page 133 of 207 Pages
<PAGE>


     viii. Pledge Security Agreement. The term "Pledge Security Agreement" shall
          mean that certain Pledge Security Agreement dated the date hereof by
          and between the Lender and the Guarantor.

d.   Representations and Warranties; Covenants. The Guarantor covenants,
     represents and warrants as of the date hereof and at all times hereafter
     until the Security Liabilities are fully satisfied and performed, that the
     accommodations made by the Lender to the Borrower under the Loan Documents
     will result in material benefits to the Guarantor. This Guaranty was
     entered into by the Guarantor for commercial purposes.

e.   Events of Default. The occurrence of any one of the following shall
     constitute an Event of Default under this Guaranty:

     i.   Breach. A breach by the Guarantor of any term, obligation, provision,
          covenant, representation or warranty arising under this Guaranty;

     ii.  Defaults Under Other Loan Document(s). Any one or more Event(s) of
          Default occurs under the Restated Note;

     iii. Failure of the Borrower to Pay Dollar Liabilities. The Borrower fails
          to satisfy the DCI Dollar Liabilities on or before October 10, 1999.

f.   Remedies.

     i.   Acceleration of Liabilities; Rights of Lender. Upon the occurrence of
          an Event of Default described in Section E hereof at the Lender's sole
          option, all Security Liabilities shall immediately become due in full,
          all without protest, presentment, demand or further notice of any kind
          to the Guarantor, all of which are expressly waived. Upon and
          following an Event of Default, the Lender may, at its option, exercise
          any and all rights and remedies it has under this Guaranty.



     ii.  Remedies Cumulative; No Waiver. The rights, powers and remedies of the
          Lender provided in this Guaranty are cumulative and concurrent, and
          are not exclusive of any right, power or remedy available to the
          Lender. No failure or delay on the part of the Lender in the exercise
          of any right, power or remedy shall operate as a waiver thereof, nor
          shall any single or partial exercise preclude any other or further
          exercise thereof, or the exercise of any other right, power or remedy.

     iii. Continuing Enforcement of the Loan Documents. If, after satisfaction
          of all or any part of the Security Liabilities, the Lender is
          compelled or agrees, for settlement purposes, to surrender such
          payment to any person or entity for any reason, then this Guaranty and
          the other Loan Documents shall continue in full force and effect or be
          reinstated, as the case may be. The provisions of this Paragraph shall
          survive the termination of this Guaranty and the other Loan Documents
          and shall be and remain effective notwithstanding the payment of the
          Liabilities, the cancellation of the Guaranty or any other Loan
          Document, the release of any security interest, lien or encumbrance
          securing the Liabilities or any other action which the Lender may have
          taken in reliance upon its receipt of such payment.

                                        2
                                                           Page 134 of 207 Pages
<PAGE>


g.   Miscellaneous.

     i.   Notices. Notices and communications under this Guaranty shall be in
          writing and shall be given by: (i) hand-delivery, (ii) first class
          mail (postage prepaid) or (iii) reliable overnight commercial courier
          (charges prepaid), to the addresses set forth in this Guaranty. Notice
          by overnight courier shall be deemed to have been given and received
          on the date scheduled for delivery. Notice by mail shall be deemed to
          have been given and received three (3) calendar days after the date
          first deposited in the United States Mail. Notice by hand delivery
          shall be deemed to have been given and received upon delivery. A party
          may change its address by giving written notice to the other party as
          specified herein.

     ii.  Governing Law. This Guaranty shall be construed in accordance with and
          governed by the substantive laws of the State of New York without
          reference to conflict of laws principles.

     iii. Integration; Amendment; No Third Party Beneficiary. This Guaranty and
          the other Loan Documents constitute the sole agreement of the parties
          with respect to the subject matter hereof and thereof and supersede
          all oral negotiations and prior writings with respect to the subject
          matter hereof and thereof. No amendment of this Guaranty and no waiver
          of one or more of the provisions hereof shall be effective unless set
          forth in writing and signed by the parties hereto. The Guarantor and
          the Lender do not intend any benefits of this Guaranty to inure to any
          third party and no third party (including the Borrower) shall have any
          status, right or entitlement under this Guaranty.


     iv.  Successors and Assigns. This Guaranty (i) shall be binding upon the
          Guarantor and the Lender and, where applicable, their respective
          heirs, executors, administrators, successors and permitted assigns,
          and (ii) shall inure to the benefit of the Guarantor and the Lender
          and, where applicable, their respective heirs, executors,
          administrators, successors and permitted assigns; provided, however,
          that the Guarantor may not assign his rights or obligations hereunder
          or any interest herein without the prior written consent of the
          Lender, and any such assignment or attempted assignment by the
          Guarantor shall be void and of no effect with respect to the Lender.
          The Lender may from time to time sell or assign, in whole or in part,
          or grant participations in some or all of the Loan Documents and/or
          the obligations evidenced thereby. The Guarantor authorizes the Lender
          to provide information concerning the Guarantor to any prospective
          purchaser, assignee or participant.

     v.   Severability and Consistency. The illegality, unenforceability or
          inconsistency of any provision of this Guaranty or any instrument or
          agreement required hereunder shall not in any way affect or impair the
          legality, enforceability or consistency of the remaining provisions of
          this Guaranty or any instrument or agreement required hereunder. The
          Loan Documents are intended to be consistent. However, in the event of
          any inconsistencies among any of the Loan Documents, such
          inconsistency shall not affect the validity or enforceability of any
          Loan Document. The Guarantor agrees that in the event of any
          inconsistency or ambiguity in any of the Loan Documents, the Loan
          Documents shall not be construed against any one party but shall be
          interpreted consistent with the Lender's policies and procedures.

     vi.  Consent to Jurisdiction and Service of Process. The Guarantor hereby
          consents that: (i) any action or proceeding against such Guarantor be
          commenced and maintained in any court within any County in the State
          of New York or in the United States District Court for any District of
          New York by service of process on such owner, partner and/or officer;
          and (ii) such courts shall have jurisdiction with respect to the
          subject matter hereof and the person of the Guarantor and all
          Collateral for the Liabilities. The Guarantor agrees that any action
          brought by the Guarantor shall be commenced and maintained only in a
          court in the United States District Court for the District of New York
          or in any court within any County in the State of New York.

                                                           Page 135 of 207 Pages
<PAGE>


     IN WITNESS WHEREOF, this Guaranty has been duly executed and delivered to
the Lender by the Guarantor on the day and year first above written.



/s/ [ILLEGIBLE]                             /s/ Joseph M. Lobozzo II
- ------------------------------             ------------------------------------
WITNESS                                             JOSEPH M. LOBOZZO II

                                                    c/o JML Optical
                                                    690 Portland Avenue
                                                    Rochester, NY 14621




NATIONAL CANADA FINANCE CORP.


By: /s/ E. Lynn Forgosh
- ------------------------------
     E. Lynn Forgosh
     GroupVice President
     125 W. 55th Street
     New York, NY 10019-5366
     Telecopier No.: (212) 632-8775

                                                           Page 136 of 207 Pages


<PAGE>
       THIS DOCUMENT IS A COPY OF THE EXHIBIT FILED ON OCTOBER 24, 1996
             PURSUANT TO A RULE 201 TEMPORARY HARDSHIP EXEMPTION.

[LOGO]    NATIONAL 
          BANK 
          OF CANADA

RE:  Payoff Delta Computec
- --------------------------------------------------------------------------------
                                                                 $2,199,815.89

Interest                                                         $    5,962.50

Chech presentments and payroll                                   $  193,586.80

Estimated cash mgmt. fees Oct                                    $    1,150.00

Legal fees not related to restructuring;
  Aug., Sept., Oct                                               $    4,745.50

Legal fees related to restructuring (cap)                        $    4,000.00

Less: lockbox 10/9                                               $   18,484.48

Less: lockbox 10/10                                              $   96,115.17

Less: NCFC Note                                                  $  770,000.00

                                                                 $1,544,661.10


- --------------------------------------------------------------------------------
                            SPECIAL LOANS CORPORATE

                                                           Page 137 of 207 Pages


<PAGE>
       THIS DOCUMENT IS A COPY OF THE EXHIBIT FILED ON OCTOBER 24, 1996
             PURSUANT TO A RULE 201 TEMPORARY HARDSHIP EXEMPTION.

October 10, 1996



Mr. John DeVito, President
Delta Computec, Inc.
900 Huyler Street
Teterboro, NJ  07608


Dear John:

This will confirm receipt of a wire transfer in the amount of  $1,544,661.10  in
connection with the closing of the NCFC/Lobozzo assignment and restructuring.


Very truly yours,


/s/ E. Lynn Forgosh
- -----------------------
E. Lynn Forgosh
Group Vice President


       Baltimore o Charlotte 0 Chicago o Cincinnati o Cleveland o Memphis
    New York o Pittsburgh o Roseland, N.J. o San Francisco o Southfield, MI

                                                           Page 138 of 207 Pages


<PAGE>
       THIS DOCUMENT IS A COPY OF THE EXHIBIT FILED ON OCTOBER 24, 1996
             PURSUANT TO A RULE 201 TEMPORARY HARDSHIP EXEMPTION.

                                                          Corporate Headquarters
                                          900 Huyler Street, Teterboro, NJ 07808
                                                                    800-477-8586
[LOGO] Delta CompuTec Inc.                         201-440-8585 Fax 201-440-3985
- --------------------------------------------------------------------------------
       Innovative Service Solutions       


October 10, 1996

VIA FAX
- -------

Dear Customer:

Please be advised that, effective October 11, 1996, our lockbox address has been
changed,  and you should no longer  remit any payments  made to Delta  CompuTec,
Inc. to our former lockbox at National Canada Finance Corp.
Please send all checks to our new lockbox address at M&T Bank as follows:

         Delta CompuTec, Inc.

         c/o M&T Bank
         626 Commerce Drive
         Amherst, N.Y.  14228
         Att: Lockbox Dept.
         Dept. No. 205

The "remit to" address on our invoice has been changed to reflect the new
address,

Very truly yours,


Frank J. Donnelly
Chief Financial Officer

CONFIRMED AND ACKNOWLEDGED
THIS 10th DAY OF OCTOBER, 1996

NATIONAL CANADA FINANCE CORP.

BY:  __________________________
     E. LYNN FORGOSH
     GROUP VICE PRESIDENT

                                                           Page 139 of 207 Pages


<PAGE>
       THIS DOCUMENT IS A COPY OF THE EXHIBIT FILED ON OCTOBER 24, 1996
             PURSUANT TO A RULE 201 TEMPORARY HARDSHIP EXEMPTION.

                              AMENDED AND RESTATED
                                CREDIT AGREEMENT

     This Amended and Restated Credit Agreement is made as of the 10th day of
October, 1996 by and among JOSEPH M. LOBOZZO II, an individual having an office
at 690 Portland Avenue, Rochester, New York 14621 (the "Lender"), DELTA COMPUTEC
INC. a New York corporation having its principal place of business at 900 Huyler
Street, Teterboro, New Jersey 07608 ("DCI"), and DELTA DATA NET, INC., a New
York corporation having its principal place of business at 900 Huyler Street,
Teterboro, New Jersey 07608("DDI"). DCI and DDI are referred to collectively as
the "Borrowers".

                              W I T N E S S E T H:

     WHEREAS, the Borrower and National Canada Finance Corp. ("NCFC") entered
into a certain Credit Agreement dated as of April 1, 1994, as amended by Credit
Agreement Amendment No. 1 dated November 17, 1994, Credit Agreement Amendment
No. 2 dated January 24, 1995, Credit Agreement Amendment No. 3 dated April 3,
1995, Credit Agreement Amendment No. 4 dated May 1, 1995 and Credit Agreement
Amendment No. 5 dated October 27, 1995 (as amended, the Credit Agreement"); and

     WHEREAS, the Borrower executed and delivered to NCFC a Promissory Note
dated April 1, 1994, as amended and restated by an Amended and Restated
Promissory Note dated May 1, 1995 and as further amended and restated by a Third
Amended and Restated Promissory Note dated October 27, 1995 (as amended and
restated, the "Promissory Note"); and

     WHEREAS, on the date hereof, NCFC is assigning to the Lender all but
$750,000 of the indebtedness owed to NCFC by DCI evidenced by the Credit
Agreement and the Promissory Note; and

     WHEREAS, the Borrower and the Lender desire to enter into a new agreement
which amends and restates, in its entirety, the portions of the Credit Agreement
and the Promissory Note evidencing the indebtedness which NCFC is assigning to
the Lender.

     NOW, THEREFORE, it is agreed as follows:

     1. Defined Terms.

          1.1 Capitalized terms used but not otherwise defined herein have the
     following meanings in this Agreement:

               "Account Debtor" means a person or entity obligated to pay a
          receivable.

                                                           Page 140 of 207 Pages
<PAGE>

               "Additional Collateral" means (a) all general intangibles of the

          Borrower of every kind and description, including without limitation
          federal, state and local tax refund claims of all kinds, whether now
          existing or hereafter arising; (b) all of the Borrower's deposit
          accounts, whether now owned or hereafter credited, wherever located;
          (c) all monies, securities, instruments, cash and other property of
          the Borrower and the proceeds thereof, now or hereafter held or
          received by, or in transit to, the Lender from or for the Borrower,
          and (d) all books, records, customer lists, ledger cards, computer
          programs, computer tapes, disks, printouts and records, and other
          property and general intangibles at any time evidencing or relating to
          any of the foregoing, whether now in existence or hereafter created;
          and all proceeds of the foregoing and all proceeds of any insurance on
          the foregoing.

               "Collateral" means Receivables, Inventory, Equipment, Patents,
          Field Spare Parts, Trademarks and Additional Collateral.

               "Declaration" a declaration of the occurrence of an Event of
          Default.

               "Eligible Receivables" means the net amount of those Receivables
          which continually meet the following requirements: (a) the account is
          due and payable not more than 90 days from the date of the invoice
          evidencing the Receivable; (b) the Receivable arose from the
          performance of services by the Borrower which have been fully and
          satisfactorily performed or from the absolute sale or lease of goods
          by the Borrower in which the Borrower had the sole and complete
          ownership and the goods have been shipped or delivered to the Account
          Debtor evidencing which the Borrower or the Lender has the possession
          of shipping and delivery receipts; (c) the Receivable is not subject
          to any prior or subsequent assignment, claim, lien or security
          interest other than that of the Lender; (d) the Receivable is not
          subject to setoff, counterclaim, defense, allowance or adjustment
          other than discounts for prompt payment shown on the invoice, or to
          dispute, objection or complaint by the Account Debtor concerning its
          liability on the Receivable and the goods, the sale or lease of which
          gave rise to the Receivable, have not been returned, rejected, lost or
          damaged; (e) the Receivable arose in the ordinary course of business;
          (f) no petition in bankruptcy or other application for relief under
          the Bankruptcy Code or other insolvency law has been filed with
          respect to the Account Debtor, and the Account Debtor has not made an
          assignment for the benefit of creditors, become insolvent or suspended
          or terminated business, and the Account Debtor is generally paying its
          debts as they become due; (g) the Account Debtor is not an affiliate,
          subsidiary, officer, shareholder or employee of the Borrower, nor
          owned or controlled by any such entity; (h) the Account Debtor
          maintains its chief executive office in the United States and is


                                        2
                                                           Page 141 of 207 Pages
<PAGE>

          organized under the laws of the United States or a state thereof, or

          payment of the Receivable is secured by a letter of credit acceptable
          to the Lender; (i) the full amount reflected on the Borrower's books
          and on any invoice delivered to the Lender relating to any Receivable
          is owing to the Borrower and no partial prepayments thereon have been
          made; (j) the Lender's security interest in the Receivable is a
          perfected first lien; (k) the Receivable does not arise from a
          consignment or other arrangement pursuant to which the subject
          Inventory is returnable if not sold or otherwise disposed of by the
          Account Debtor; and (l) the Receivable is not of a class, type or
          category which the Lender hereafter reasonably determines, on notice
          to the Borrower, is not eligible for inclusion in the Borrowing Base
          under Section 2.1 of this Agreement.

               "Equipment" means all machinery, equipment, furniture, fixtures,
          tools, parts, supplies and motor vehicles, now owned and hereafter
          acquired by the Borrower of whatsoever name, nature, kind or
          description, wherever located, and all additions and accessions
          thereto and replacements or substitutions therefor, and all proceeds
          thereof and all proceeds of any insurance thereon.

               "Inventory" means all inventory, as defined in the New York
          Uniform Commercial Code.

               "Loans" means all advances or loans made to the Borrower by the
          Lender pursuant to this Agreement.

               "Maturity Date" means December 10, 1996.

               "Obligations" means all loans, advances, debts, liabilities,
          obligations and duties owing by the Borrower to the Lender of every
          kind and description, direct or indirect, absolute or contingent, due
          or to become due, now existing or hereafter arising, pursuant to this
          Agreement and the Loans and to no other transaction, whether such
          obligations are form time to time reduced and thereafter increased, or
          entirely extinguished and thereafter reincurred, including without
          limitation, all interest, fees, charges, expenses and attorneys' fees
          chargeable to the Borrower or incurred by the Lender in connection
          with this Agreement.

               "Patents" means all of the Borrower's right, title and interest,
          present and future, in and to (a) all letters patent of the United
          States or any other country, all right, title and interest therein and
          thereto, and all registrations and recordings thereof, including
          without limitation applications, registrations and recordings in the
          United States Patent and Trademark Office or in any similar office or
          agency of the United States and any State thereof or any other country
          or any political subdivision thereof; all


                                        3
                                                           Page 142 of 207 Pages
<PAGE>

          whether now owned or hereafter acquired by the Borrower; and (b) all

          reissues, continuations, continuations-in-part or extensions thereof
          and all licenses thereof; and all proceeds of the foregoing and all
          proceeds of any insurance on the foregoing.

               "Receivables" means (a) all of the Borrower's now owned and
          hereafter acquired accounts, chattel paper, documents and instruments,
          and all proceeds of the foregoing and all proceeds of any insurance on
          the foregoing; (b) all of the Borrower's rights, remedies, security
          and liens, in, to and in respect of the accounts, including without
          limitation, rights of stoppage in transit, replevin, repossession and
          reclamation and other rights and remedies of an unpaid vendor, lienor
          or secured party, guarantees or other contracts of suretyship with
          respect to the accounts, deposits or other security for the obligation
          of any debtor or obligor in any way obligated on or in connection with
          any accounts and credit and other insurance, and all proceeds of the
          foregoing and all proceeds of any insurance on the foregoing; and (c)
          all of the Borrower's right, title and interest, present and future,
          in, to and in respect of, all goods relating to, or which by sale have
          resulted in, accounts, including without limitation all goods
          described in invoices or other documents or instruments with respect
          to, or otherwise representing or evidencing any accounts and all
          returned, reclaimed or repossessed goods, and all proceeds of the
          foregoing and all proceeds of any insurance on the foregoing.

               "SAI/Delta" means SAI/Delta, Inc., a Florida corporation.

               "Subordinated Debentures" means the following outstanding
          Debentures issued by the Borrower: (i) 8% Subordinated Debenture dated
          October 28, 1992, in the original principal amount of $600,001.00,
          payable to Joseph M. Lobozzo II, as amended and restated, and now due
          on January 31, 1998; and (ii) 8% Subordinated Debenture dated October
          31, 1992, in the original principal amount of $475,000.00, payable to
          Dataspan Systems, Inc. and Willcox & Gibbs Data Net, Inc., due October
          3, 1997.

               "Supplemental Agreements" means any and all agreements,
          instruments, documents, security agreements, guaranties, mortgages,
          financing statements, assignment agreements, repurchase agreements and
          supplements thereto granting or intending to grant to lender any lien,
          security interest, pledge, assignment or indemnification to secure the
          obligations.

               "Trademarks" means all of the Borrower's right, title and
          interest, in and to (a) all trademarks, trade names, trade styles,
          service marks, prints and labels on which


                                        4
                                                           Page 143 of 207 Pages
<PAGE>

          said trademarks, trade names, trade styles and service marks have
          appeared or appear, designs and general intangibles of like nature,
          now existing or hereafter adopted or acquired, all right, title and

          interest therein and thereto, and all registrations and recordings
          thereof, including without limitation applications, registrations and
          recordings in the United States Patent and Trademark Office or in any
          similar office or agency of the United States, any State thereof, or
          any other country or any political subdivision thereof, all whether
          now owned or hereafter acquired by the Borrower; (b) all reissues,
          extensions or renewals thereof and all licenses thereof; and (c) the
          goodwill of the business symbolized by each of the Trademarks, and all
          customer lists and other records of the Borrower relating to the
          distribution of products bearing the Trademarks; and all proceeds of
          the foregoing and all proceeds of any insurance on the foregoing.

          1.2 UCC Definitions. The words "debtor", "secured party",
     "collateral", "perfection", "authorization", "consent", "security
     agreement", "proceeds", "financing statement", "assignee", "assignment",
     action , "creditor", "goods", "equipment", "inventory", "accounts",
     "documents", "instruments", "chattel paper", and "general intangibles", and
     all other terms used in this Agreement and in all documents referred to
     herein shall have the meanings given such terms in the New York Uniform
     Commercial Code.

          1.3 Accounting Terms. All accounting terms used but not defined in
     this Agreement shall be construed in accordance with generally accepted
     accounting principles consistently applied.

     2. Terms of Borrowing.

          2.1 Borrowing Base. As long as neither DCI nor DDI are in default of
     any of their Obligations to the Lender, the Lender may lend to the
     Borrower, and the Borrower may borrow from the Lender, from time to time,
     up to an aggregate outstanding principal amount at any time of $2,550,000,
     or such lesser amount which is 105% (subject to reduction as set forth on
     Schedule 2.1) of DCI's, DDI's and SAI/Delta's Eligible Receivables.

          2.2 Borrowing Base Reports Etc. For purposes of computing the
     Borrowing Base, the Borrower shall furnish to the Lender information
     adequate to identify Receivables and Inventory at times and in form and
     substance as may be required by the Lender. Without limiting the foregoing,
     the Borrower shall provide to the Lender in form and content satisfactory
     to the Lender (a) a Borrowing Certificate in the form mutually agreeable to
     Borrower and Lender to be provided at least weekly and at such other
     intervals as the Lender may request in the event a Loan would exceed the
     Borrowing Base as calculated by the

                                       5
                                                           Page 144 of 207 Pages
<PAGE>


     Lender; and (b) monthly, within 15 days after month-end, an Accounts
     Receivable Aging based on invoice date and listed in sequence by number.
     From time to time, the Borrower shall provide the Lender with such other
     schedules and information as the Lender may reasonably request. Together
     with such schedules, the Borrower shall, upon the reasonable request of the

     Lender, furnish copies of customers' invoices or the equivalent, and
     original shipping or delivery receipts for all merchandise sold, and the
     Borrower warrants the genuineness thereof. The Borrower further warrants
     that all Receivables are and will be bona fide existing obligations created
     by the sale and delivery of merchandise or the rendition of services to
     customers in the ordinary course of business, free of liens, encumbrances
     and security interests, except as permitted hereunder, and unconditionally
     owed to the Borrower and, to the best of the Borrower's knowledge, without
     defense, offset or counterclaim.

          2.3 Loans.

               (a) Subject to the terms of this Agreement, the Borrower may
          receive Loans upon request made by a person authorized by the Borrower
          no later than 1:00 p.m. Rochester, New York time in a writing
          satisfactory to the Lender; provided that no Loan shall be made which,
          by itself or together with the principal balance then outstanding of
          prior Loans, would cause the total outstanding principal balance of
          the Loans to exceed the Borrowing Base described in paragraph 2.1 of
          this Agreement.

               (b) Subject to the required terms of payment set forth in
          Paragraph 2.5 below, the Borrower may make principal payments upon its
          indebtedness for Loans in its discretion and until maturity as
          provided in Paragraph 2.5(a), may reborrow subject to the limits set
          forth in this Agreement.

          2.4 Interest.

               (a) Until the Maturity Date, whether by acceleration or
          otherwise, the Borrower agrees to pay interest on the outstanding
          principal balance of the Loans at the rate of one and three quarters
          of one percent (1 3/4%) per annum above the highest prime rate
          published form time to time in the "Money Rates" column of the Wall
          Street Journal or any successor to such publication ("Prime Rate") as
          it may change from time to time based upon a 360-day year for the
          actual number of days the Loans are outstanding which may result in a
          higher effective annual rate. After maturity, whether by acceleration
          or otherwise, the Borrower agrees to pay interest on the outstanding
          principal balance of the Loans at a rate equal to three and three
          quarters percent (3 3/4%) per annum above the Prime Rate.

                                       6
                                                           Page 145 of 207 Pages
<PAGE>




               (b) Any change in the Prime Rate shall, without notice to the
          Borrower, be effective hereunder commencing at the same time such new
          rate becomes effective.

          2.5 Payments.


               (a) The Borrower further agrees to pay the outstanding principal
          and accrued interest on the Loans on the earlier of (i) the Maturity
          Date; or (ii) the occurrence of an event of default under Paragraph
          7.1 below in respect of which the Lender has delivered a Declaration.
          In addition, the Borrower agrees to make, on demand, such principal
          payments as are necessary so that the unpaid principal balance of the
          Loans does not at any time exceed the Borrowing Base. Without limiting
          the right of the Lender to demand payment as provided herein, the
          Borrower shall pay accrued interest on the first day of each month
          commencing the month following the date of this Agreement and
          continuing until all of the Obligations are paid in full.

               (b) Each payment received by the Lender shall be applied first to
          interest accrued and billed and the balance, if any, to principal,
          provided that if there has occurred an event of default under
          Paragraph 7.1 below, the Lender may apply payments in the Lender's
          absolute discretion.

               (c) Any non-cash payment of Loans, i.e, payment in other than
          immediately available U.S. funds, shall be deemed paid, for purposes
          of calculating the principal amount available for borrowing under this
          Agreement, on the date such non-cash payments are received by the
          Lender; however, for the purpose of calculating interest pursuant to
          Paragraph 2.4 of this Agreement, such payments shall be deemed to have
          been received two (2) days after actual receipt of such payment by the
          Lender. Notwithstanding the foregoing, if any such non-cash payment
          presented for collection by the Lender is not paid in Lender may,
          without prior notice to the Borrower, reverse the provisional credit
          which has been given, and make appropriate adjustments to the amount
          of principal and interest due, and the amount of the Borrowing Base
          available.

          2.6 Prepayment. The Borrower shall have the right to prepay the
     outstanding principal balance of the Loans in whole, at any time, or in
     part, from time to time.

          2.7 Fees and Expenses.

               (a) Audit Fees. The Borrower shall pay to the Lender field
          examination fees in the amount of $400 per day per examiner for all
          audits or field examinations of the Borrower conducted in reasonable
          scope at reasonable intervals and shall reimburse the Lender for all
          reasonable airfare, hotel

                                       7
                                                           Page 146 of 207 Pages
<PAGE>


          accommodations and other out-of-pocket expenses in connection with
          such audits or examinations.

               (b) Expenses. If the Obligations are placed in the hands of any

          attorneys employed by the Lender for collection, the Borrower agrees
          to pay on demand, the Lender's reasonable attorneys' fees, together
          with reasonable costs and expenses, whether or not a legal proceeding
          or action is commenced, including those incurred in a bankruptcy or
          insolvency proceeding.

               2.8 Purpose of Line of Credit. The Borrower agrees to use the
          proceeds of the Loans solely as working capital and for general
          corporate purposes.

               2.9 Collection of Receivables. After the occurrence of an event
          of default hereunder in respect of which the Lender has delivered a
          Declaration, the Lender or its designee may notify Account Debtors
          that Receivables have been assigned to the Lender or of the Lender's
          security interest therein and collect them directly and charge the
          collection costs and expenses to the Borrower's account; but, unless
          and until the Lender does so or gives the Borrower other instructions,
          the orrower shall make collection of all Receivables. Until credited
          to the Borrower's account as hereinafter set forth, all payments of
          Receivables through a lock box arrangement to be established with the
          Lender shall be held by the Lender as collateral for payment and/or
          performance of the Borrower's Obligations to the Lender.

               2.10 Returns, Credits. Etc. Any merchandise which is returned by
          an Account Debtor or otherwise recovered shall be set aside, marked
          with the Lender's name and held by the Borrower as the Lender's
          trustee, and shall remain part of the Lender's security. The Borrower
          shall notify the Lender promptly of all returns and recoveries and, on
          request, deliver the merchandise to the Lender. The Borrower shall
          also notify the Lender promptly of all disputes and claims exceeding
          $25,000 in the aggregate, and settle or adjust them at no expense to
          the Lender, but no discount, credit or allowance (other than in the
          ordinary course of the Borrower's business) shall be granted to any
          Account Debtor, and no returns of merchandise (other than in the
          ordinary course of the Borrower's business) shall be accepted by the
          Borrower without the Lender's consent. After the occurrence of an
          event of default hereunder in respect of which the Lender has
          delivered a Declaration, the Lender may settle or adjust disputes and
          claims directly with Account Debtors for amounts and upon terms which
          the Lender reasonably determines, on notice to the Borrower, to be
          advisable, and in all cases the Lender will credit the Borrower's
          account with only the net amounts received by the Lender in payment of
          such Receivables.

               2.11 Further Assurance. Upon the Lender's request, the Borrower
          shall appropriately mark the Borrower's books of account to disclose
          the Lender's security interest in all the Borrower's Receivables, and
          shall perform all other steps reasonably requested by the Lender to
          create and maintain in the Lender's favor a valid first priority
          security interest, or lien in or on all Receivables and all other
          security held by or for the Lender.

                                       8
                                                           Page 147 of 207 Pages

<PAGE>



               2.12 Power of Attorney. The Borrower appoints the Lender, or any
          person whom the Lender may designate as its attorney, with power of
          attorney to sign the Borrower's name on such financing statements as
          may be necessary to perfect the Lender's security interest in the
          Collateral; and, after the occurrence of an event of default hereunder
          in respect of which the Lender has delivered to the Borrower a
          Declaration to endorse the Borrower's name on any checks, notes,
          acceptances, money orders, drafts or other forms of payment or
          security that may come into the Lender's possession; to sign the
          Borrower's name on any invoice or bill of lading relating to any
          Receivables, on verifications of accounts, notices of assignment and
          notices to customers; to notify the post office authorities to change
          the address for delivery of the Borrower's mail to an address
          designated by the Lender; to send requests for verification of
          Receivables to Account Debtors; and to do all things necessary to
          carry out this Agreement. The Borrower ratifies and approves all acts
          of such attorney. Neither the Lender nor the attorney will be liable
          for any acts or omissions nor for any error of judgment or mistake of
          fact or law. This power, being coupled with an interest, is
          irrevocable so long as any Receivables in which the Lender has a
          security interest remain unpaid or until the Obligations have been
          fully satisfied. the Lender may file one or more financing statements
          disclosing the Lender's security interest without the Borrower's
          signature appearing thereon.

     3. Collateral.

          3.1 Security Interest. As security for payment and performance of all
     Obligations, the Borrower hereby assigns and grants to the Lender a
     continuing security interest in the Collateral. The Lender shall retain its
     security interest in all Collateral, until all Obligations have been
     finally and irrevocably satisfied.

          3.2 Possession of Collateral. After the occurrence of an event of
     default hereunder in respect of which the Lender has delivered to the
     Borrower a Declaration, the Lender will at all times have the right to take
     physical possession of the Collateral and to maintain such possession of
     the Collateral on the Borrower's premises or to remove the Collateral or
     any part thereof to such other places as the Lender may desire. If the
     Lender exercises its right to take possession 

                                       9
                                                           Page 148 of 207 Pages
<PAGE>


     of the Collateral, the Borrower shall, upon the Lender's demand, assemble
     the Collateral and make it available to the Lender at a place reasonably
     convenient to the Lender.



          3.3 Location of Collateral. All Collateral is owned by the Borrower
     free of all other liens and encumbrances, except as set forth on Schedule 1
     hereto and shall be kept by the Borrower at the location(s) set forth in
     Schedule 2 hereto; and the Borrower will not (without the Lender's prior
     written approval) remove the Collateral therefrom, except for the purposes
     of sale or lease in the regular course of the Borrower's business.

          3.4. Limitation on Disposition of Assets. The Borrower will not sell,
     exchange or otherwise dispose of the Collateral, or any part thereof, or
     any interest therein without the express written consent of the Lender
     other than (a) finished products or field spare parts sold in the ordinary
     course of business, and (b) fully depreciated obsolete equipment or
     equipment which is replaced by items of comparable kind and value. In the
     event of any other sale, exchange or other disposition of the Collateral or
     any part thereof or any interest therein (and no such sale, exchange or
     other disposition is hereby otherwise authorized or consented to), the
     security interest of the Lender shall nevertheless continue in said
     Collateral (including all proceeds, cash and non-cash) notwithstanding said
     sale, exchange or other disposition; all of said proceeds shall remain
     Collateral hereunder and shall be transferred and paid over to the Lender
     immediately following said sale, exchange or other disposition, and shall
     be applied at the option of the Lender to the payment of Obligations due
     hereunder; and the receipt by the Lender of all or any of said proceeds
     shall not be deemed or construed to be an authorization or consent of the
     Lender to such sale, exchange or other disposition of said Collateral.

          3.5 Further Assurances Regarding Inventory. The Borrower shall perform
     any and all steps reasonably requested by the Lender to perfect the
     Lender's security interest in the Inventory, such as leasing warehouses to
     the Lender or the Lender's designee, placing and maintaining signs,
     appointing custodians, executing and filing financing or continuation
     statements in form and substance satisfactory to the Lender, maintaining
     stock records and transferring Inventory to warehouses. If any Inventory is
     in the possession or control of any of the Borrower's agents or processors,
     the Borrower shall notify such agents or processors of the Lender's
     security interest therein, and, upon request, instruct them to hold all
     such Inventory for the Lender's account and subject to the Lender's
     instructions. A physical listing of all Inventory, wherever located, shall
     be taken by the Borrower at least annually and whenever requested by the
     Lender, and a copy of each

                                       10
                                                           Page 149 of 207 Pages
<PAGE>


     such physical listing shall be supplied to the Lender. the Lender may
     examine and inspect the Inventory at any reasonable time during regular
     business hours.

          3.6 Compliance. The Borrower will comply with the terms and conditions
     of any leases covering the premises wherein the Collateral is located and
     any orders, ordinances, laws or statutes of any city, state or other
     governmental department having jurisdiction with respect to such premises

     or the conduct of business thereon.

          3.7 Discharge of Liens. The Lender may, at its option, discharge any
     taxes, liens, security interests or other encumbrances at any time levied
     or placed on the Collateral, and the Lender may pay insurance premiums or
     procure insurance and otherwise pay for the maintenance and preservation of
     the Collateral and the Borrower will reimburse the Lender on demand for any
     payment made or expense incurred by the Lender pursuant to the foregoing
     authority, with interest at the rate provided in this Agreement.

          3.8 Corporate Existence, Properties. The Borrower will at all times
     maintain, preserve and protect all franchises, patents, and trade names and
     preserve all the remainder of its property used or useful in the conduct of
     its business and keep the same in good condition and repair (normal wear
     and tear and obsolescence excepted), and from time to time make, or cause
     to be made, all needed and proper repairs, renewals, replacements,
     betterments and improvements thereto, and will pay or cause to be paid,
     except when the same may be contested in good faith, all rent due on any
     premises where any property is held or may be held, so that the business
     carried on in connection therewith may be continuously conducted.

          3.9 Insurance. The Borrower will have and maintain insurance at all
     times with respect to all Collateral against risks of fire (including
     so-called extended coverage), theft and such risks as the Lender may
     require containing such terms, in such form, and for such periods, and
     written by such companies as may be satisfactory to the Lender, such
     insurance to be payable to the Lender and the Borrower as their interests
     may appear; each policy of insurance shall have a loss payee endorsement in
     form satisfactory to the Lender providing (a) that loss or damage, if any
     under the policy, shall be payable to the Lender, as secured party, as its
     interests may appear; (b) that the insurance as to the interest of the
     Lender shall not be invalidated by any act or neglect of the insured or
     owner of the property described in said policy, nor by any foreclosure, or
     other proceeding, nor by any change in the title of ownership of said
     property, nor by the occupation of the premises where the property is
     located for purposes more hazardous than are permitted by said policy; (c)
     that, if the policy is canceled at

                                       11
                                                           Page 150 of 207 Pages
<PAGE>


     any time by the insurance carrier, in such case the policy shall continue
     in force for the benefit of the Lender for not less than thirty (30) days
     after written notice of cancellation to the Lender from the insurance
     carrier; and (d) that the policy will not be reduced or canceled at the
     request of the insured nor will said loss payee endorsement be amended or
     deleted without thirty (30) days' prior written notice to the Lender from
     the insurance carrier. The Borrower will furnish the Lender with
     certificates or other evidence satisfactory to the Lender of compliance
     with the foregoing insurance provisions, and, after the occurrence of an
     event of default hereunder in respect of which the Lender shall have
     delivered to the Borrower a Declaration, the Lender may act as attorney for

     the Borrower in obtaining, adjusting, settling, and canceling such
     insurance and receiving and endorsing any drafts. The Borrower hereby
     assigns to the Lender any and all monies which may become due and payable
     under any policy insuring the Collateral covered by this Agreement,
     including return of unearned premiums, and hereby directs any insurance
     company issuing any such policy to make payment directly to the Lender and
     authorizes the Lender, at its option: (i) to apply such monies in payment
     on account of any Obligation hereunder, whether or not due, and remit any
     surplus to the Borrower; or (ii) to return said funds to the Borrower for
     the purpose of replacement of the Collateral. The Borrower will also at all
     times maintain necessary workers' compensation insurance and such other
     insurance as may be required by law or as may be reasonably required in
     writing by the Lender.

     4. Representations and Warranties.

          4.1 Representations and Warranties. DCI and DDI each warrants and
     represents to the Lender that (a) each Borrower is and shall at all times
     hereafter be a corporation duly organized and existing in good standing
     under the laws of the state of its incorporation and qualified and licensed
     to do business in any other state in which its ownership of property or its
     conduct of business requires it to be so qualified and/or licensed; (b)
     each Borrower has the right and power and is duly authorized to enter into
     this Agreement and the Supplemental Agreements; (c) the execution by each
     Borrower of this Agreement and the Supplemental Agreements shall not
     constitute a breach of any provision contained in either Borrower's
     Certificate of Incorporation or By-Laws or contained in any agreement to
     which either Borrower is now or hereafter becomes a party; (d) the
     performance by each Borrower of all of the terms and provisions contained
     in this Agreement and in the Supplemental Agreements' shall not constitute
     a default or an event of default under any agreement to which each Borrower
     is now or hereafter a party; (e) the Borrower has good and indefeasible
     title to the Collateral; (f) all financial statements and information
     relating to each Borrower which have been or may hereafter be delivered by
     each Borrower to the Lender are true and correct and have been

                                       12
                                                           Page 151 of 207 Pages
<PAGE>


     prepared in accordance with generally accepted accounting principles, and
     there has been no material adverse change in the financial condition of
     either Borrower since the submission of any such financial information to
     the Lender; and (g) there are no actions or proceedings which are pending
     or threatened against either Borrower which might result in any material
     adverse change in the Borrower's financial condition or which might in any
     material way affect any of the assets of the Borrower.


                           [Intentionally left blank]


     5. Affirmative Covenants. The Borrower agrees as follows:


          5.1 Monthly Financial Reports. To furnish to the Lender, within thirty
     (30) days after the end of each calendar month, internally prepared
     consolidated and consolidating financial reports of the operations of the
     Borrower for such month and for the fiscal year-to-date, certified by the
     Chief Financial Officer of the Borrower.

          5.2 Quarterly Financial Reports. To furnish to the Lender, within
     forty-five (45) days after the end of each fiscal quarter, internally
     prepared 10Q financial consolidated reports of the Operations of the
     Borrower for such quarter, certified by the Chief Financial Officer of the
     Borrower.

          5.3 Annual Statements. To furnish to the Lender within the earlier to
     occur of the date that such credited financial statement are filed by DCI
     with the Securities and Exchange Commission or one hundred twenty (120)
     days after the end of each of the Borrower's fiscal years, audited
     financial statements consisting of a balance sheet, income statement and
     associated cash flows of the Borrower for such year prepared on a
     consolidated and consolidating basis, in accordance with generally accepted
     accounting principles, by a firm of independent certified public
     accountants satisfactory to the Borrower and the Lender and certified by
     the Borrower's Chief Financial Officer.

          5.4 Forecast. For each fiscal year of the Borrower during the term
     hereof, furnish to the Lender a consolidated and consolidating financial
     forecast for the Borrower's upcoming fiscal year, consisting of monthly
     projections of the Borrower's balance sheet, income statement, cash flows,
     and Loan availability. Such reports shall be furnished to the Lender within
     the first thirty (30) days of the

                                       13
                                                           Page 152 of 207 Pages
<PAGE>


     Borrower's fiscal year. Anything to the contrary notwithstanding, so long
     as DDI is not actively conducting business, the financial reports,
     statements and forecasts to be furnished pursuant to paragraphs 5.1 and 5.4
     need not contain information concerning DDI.

          5.5 Certification. The reports required under Paragraph 5.1 through
     5.4 shall be accompanied by a certificate of the chief financial officer of
     the Borrower (i) certifying that no event of default under Paragraph 7.1 of
     this Agreement has occurred or, if such an event has occurred, the nature
     of the event of default and the action which the Borrower proposes to take
     to cure it, and (ii) with computations demonstrating compliance with the
     covenants contained in this Agreement.

          5.6 Securities Regulation Reports. Promptly after the sending or
     filing thereof, to furnish copies of all proxy statements, financial
     statements and reports which the Borrower sends to its stockholders, and
     copies of all regular, periodic and special reports, and all registration
     statements which the Borrower files with the Securities and Exchange

     Commission or any governmental authority which may be substituted therefor,
     or with any national securities exchange.

          5.7 Management. To notify the Lender thirty (30) days prior to any
     reasonably foreseeable change in the management of the Borrower.

          5.8 Taxes. To pay promptly all tax assessments and other governmental
     charges, provided, however, that nothing herein contained shall be
     interpreted to require the payment of any tax assessments and other
     governmental charges long as its validity is being contested in good faith
     in appropriate proceedings diligently pursued, provided such contest does
     not impair the rights and security of the Lender.

          5.9 Maintenance of Property. To maintain and keep its real and
     personal property in good condition and in compliance with applicable
     federal, state and local laws, rules and regulations.

          5.10 Litigation. To notify the Lender of any litigation instituted
     against the Borrower and any judgments entered against the Borrower in any
     court involving more than $250,000 in the aggregate at any one time which
     is not covered by insurance or where the insurance coverage is questioned
     by the carrier.

          5.11 Corporate Existence. To maintain each Borrower's corporate
     existence in good standing.

                                       14
                                                           Page 153 of 207 Pages
<PAGE>


          5.12 Other Information. To furnish such other information and at such
     times as may be reasonably requested by the Lender.

          5.13 Environmental Matters. To comply with all applicable
     environmental laws and regulations, and to promptly correct any violation
     of any applicable environmental law or regulation.

          5.14 Audits. To permit the Lender and its agents at all reasonable
     times and from time to time during normal business hours to examine, audit,
     and make extracts from, or copies of, any of the Borrower's books, ledgers,
     reports and other records and to otherwise verify all or any Collateral in
     any manner the Lender considers appropriate.

          5.15 Ownership. To notify the Lender within five (5) business days of
     any change in voting control of either DCI or DDI.


     6. Negative Covenants. The Borrower will not, without the prior written
consent of the Lender:

          6.1 Capital Expenditures. Expend for fixed assets, or enter into
     leases which must be capitalized under generally accepted accounting
     principles (but excluding field spare parts), or make leasehold

     improvements during any one fiscal year in an aggregate amount in excess of
     $100,000.

          6.2 Liens. Create or permit to exist against any of its property or
     assets, real or personal, tangible or intangible, now owned or hereafter
     acquired, any mortgage or other lien or encumbrance, except (a) liens and
     mortgages listed on Schedule l hereto; (b) liens for taxes not delinquent
     or being contested in good faith and by appropriate proceedings; (c) liens
     granted to the Lender; and (d) liens granted to NCFC.

          6.3 Borrowed Money. Incur other indebtedness for borrowed money,
     except (a) indebtedness described on Schedule 3 hereto, (b) indebtedness
     permitted by Section 6.14 hereof, (c) indebtedness to the Lender, (d)
     intercompany transfers between DCI, DDI and SAI/Delta; and (e) indebtedness
     to NCFC.

          6.4 Sell Real Property. Sell or dispose of any presently owned real
     property.

          6.5 Sell Fixed Assets. Sell or dispose of a substantial portion of
     presently owned fixed assets, such as furniture, fixtures, and equipment,
     except as required for normal replacement due to age and/or obsolescence,
     provided (a) the same are replaced by fixed assets of equal value and
     quality or

                                       15
                                                           Page 154 of 207 Pages
<PAGE>


     (b) the Borrower delivers to the Lender written notice of such sale or
     disposition and remits the proceeds of such sale or disposition to reduce
     the outstanding principal balance of the Loans, and following such sale or
     disposition the Borrower is in compliance with the Borrowing Base.

          6.6 Declare Dividends. Declare any dividends or make any other
     distribution on any shares of its capital stock or set apart any sum for
     the payment of any such dividends.

          6.7 Capital Stock. Purchase or retire any of its capital stock.

          6.8 Purchase Other Business. Purchase or acquire all or substantially
     all of the property, assets, or business of any other person, firm or
     corporation.

          6.9 Contingent Debt. Assume, guarantee, endorse, contingently agree to
     purchase, or otherwise become liable upon the obligation of any person,
     firm, or corporation, except (a) by the endorsement of negotiable
     instruments for deposit or collection or similar transactions in the
     ordinary course of business, or (b) guarantees of any obligations owed to
     the Lender.

          6.10 Purchase Stock: Merge or Consolidate. Enter into any merger or
     consolidation, or purchase or acquire the obligations or stock of, or any

     other interest in, any person, firm, corporation, or other enterprise
     whatsoever, except the purchase of direct obligations of the United States
     of America or of any state, county, or municipality.

          6.11 Sale-Leaseback. Directly or indirectly enter into any arrangement
     whereby the Borrower shall sell or transfer all or any substantial part of
     its fixed assets then owned by it and shall thereafter or thereupon rent or
     lease such property or a substantial part thereof.

          6.12 Accounts Receivable. Sell, assign, transfer, or dispose of any of
     its Receivables, except to the Lender.

          6.13 Loans. Make loans or advances to any person, firm, or
     corporation.

          6.14 Lease of Real and Personal Property. Enter into any arrangements
     for the lease of real or personal property where the annual lease payments
     for all such leases would exceed in the aggregate $350,000.00 in any fiscal
     year.
                                       16
                                                           Page 155 of 207 Pages
<PAGE>


          6.15 Prepay Debt. Make any prepayment in regard to any indebtedness
     that is subordinated in any respect to indebtedness owing to the Lender.

          6.16 ERISA Compliance.

               (a) Engage in any "prohibited transaction" (as such term is
          defined in Section 406 or Section 2003(a) of the Employee Retirement
          Income Security Act of 1974 and the regulations thereunder, as now or
          hereafter in effect, ("ERISA"));

               (b) Incur any "accumulated funding deficiency" (as such term is
          defined in Section 302 of ERISA) whether or not waived; or

               (c) Terminate any pension plan in a manner which could result in
          the imposition of a lien on any property of the Borrower or any
          affiliate pursuant to Section 4068 of Erlsa.

          6.17 [Intentionally Omitted].

          6.18 [Intentionally Omitted].

          6.19 [Intentionally Omitted].

          6.20 [Intentionally Omitted].

          6.21 [Intentionally Omitted].

          6.21 Subordinated Debentures. Make any principal payments on any of
     the Subordinated Debentures prior to the dates upon which such payments are
     scheduled to be made under the Subordinated Debentures.


     7.   Default.

          7.1 Events of Default. If one or more of the following events of
     default shall occur, the Lender, at its option, may terminate the
     Borrower's right to receive any further Loans, and regardless of whether
     the Lender exercises such option, the indebtedness of the Borrower under
     this Agreement and any note or other agreement executed pursuant hereto
     shall become immediately due and payable upon declaration to that effect
     delivered by the Lender to the Borrower:

               (a) Default shall be made by the Borrower (i) in the payment of
          any principal or interest payable under this Agreement within ten (10)
          days when due or (ii) in the payment of any fees or other expenses due
          and payable in pursuant to this Agreement or any other document
          executed and delivered to the Lender in connection with this Agreement
          within ten (10) days

                                       17
                                                           Page 156 of 207 Pages
<PAGE>


          after the Lender notifies the Borrower that such fees or expenses are
          due;

               (b) Default shall be made in (i) the due observance and
          performance of any term, covenant, or agreement contained in this
          Agreement (other than Section 6 of this Agreement) or in any other
          present or future agreement, note, or instrument between or among the
          Borrower and the Lender, including, without limitation, any default
          under any Supplemental Agreements and, to the extent such default is
          capable of being cured, such default shall remain uncured for a period
          of twenty (20) days after the Lender notifies the Borrower in writing
          of such default, or (ii) the due observance and performance of any
          term, covenant, or agreement contained in Section 6 of this Agreement;

               (c) any representation or warranty made in this Agreement or any
          certificate or statement furnished pursuant to or in connection with
          this Agreement shall prove to have been false in any material respect
          at the date of which the facts therein set forth were certified, or
          shall have omitted any substantial contingent or unliquidated
          liability or claim against the Borrower, or if upon the date of the
          execution of this Agreement there shall have been any material adverse
          change in any of the material facts disclosed on any such statement,
          which change shall not have been disclosed to the Lender in writing at
          or prior to the time of such execution;

               (d) the termination of existence or business, failure of, or the
          making of an assignment for the benefit of creditors by, the Borrower;

               (e) the entry of any judgment or judgments against the Borrower
          aggregating as to any one of them at any one time in excess of
          $250,000 which shall remain unsatisfied, undischarged, or unsecured

          for a period of thirty (30) days or as to which a stay of execution
          shall not have been obtained within thirty (30) days of the entry
          thereof; provided, however, the Borrower may not, however, be declared
          in default by reason of the entry of any such judgment so long as the
          same shall be contested in good faith by appropriate proceedings
          diligently conducted, and proper security be given therefor;

               (f) if any governmental agency or department shall take control
          of a substantial part of the property of the Borrower and shall
          continue such control for thirty (30) days;

               (g) if any tax lien is filed against the property of the Borrower
          and remains unsatisfied, undischarged, or unsecured for a period of
          thirty (30) days unless such lien is

                                       18
                                                           Page 157 of 207 Pages
<PAGE>


          contested in good faith by proper proceedings diligently conducted;

               (h) failure by the Borrower to generally pay its debts as such
          debts become due;

               (i) a material decrease in the value of the Collateral, or any
          other collateral securing payment of the Obligations.

               (j) if the Borrower (i) shall file a petition or request for
          liquidation, reorganization, arrangement, adjudication as a bankrupt,
          relief as a debtor or other relief under the bankruptcy, insolvency or
          similar laws of the United States of America or any state or territory
          thereof or any foreign jurisdiction, now or hereafter in effect; (ii)
          shall make a general assignment for the benefit of creditors; (iii)
          shall consent to the appointment of a receiver or trustee for the
          Borrower or any of its assets, including, without limitation, the
          appointment of or taking possession by a "custodian" as defined in the
          federal Bankruptcy Code; (iv) make any, or send notice of any
          intended, bulk sale; or (v) shall execute a consent to any other type
          of insolvency proceeding (under the federal Bankruptcy Code or
          otherwise) or any formal or informal proceeding for the dissolution or
          liquidation of, or settlement of claims against or winding up of
          affairs of, the Borrower; provided, however, that the consent by DDI
          to the transfer of its assets to NCFC in March 1996, and the
          subsequent sale and disposition of those assets by NCFC, and the
          termination of DDI's business operations, is not deemed to be an event
          of default under paragraph 7.1(d), (j) or (k).

               (k) the appointment of a receiver, trustee, custodian or officer
          performing similar functions for the Borrower or any of its assets,
          including, without limitation, the appointment of or taking possession
          by a "custodian" as defined in the federal Bankruptcy Code; or the
          filing against the Borrower of a request or petition for liquidation,
          reorganization, arrangement, adjudication as a bankrupt or other

          relief under the bankruptcy, insolvency or similar laws of the United
          States of America or any state or territory thereof or any foreign
          jurisdiction, now or hereafter in effect; or the institution against
          the Borrower of any other type of insolvency (under the federal
          Bankruptcy Code otherwise) or of any formal or informal proceeding for
          the dissolution or liquidation of, settlement of claims against or
          winding up of affairs of the Borrower, and the failure to have such
          appointment vacated or such petition or proceeding dismissed within
          sixty (60) days after such appointment, filing or institution.

          7.2 Rights of the Lender. Upon the occurrence of an event of default
     under Section 7.1 hereof: (a) the Lender

                                       19
                                                           Page 158 of 207 Pages
<PAGE>


     shall have, in addition to all other rights provided herein, the rights and
     remedies of a secured party under the New York Uniform Commercial Code; and
     (b) the Lender may sell and deliver any or all Receivables and any or all
     other security and Collateral held by the Lender or for the Lender at
     public or private sale upon prior notice to the Borrower if required by
     law, for cash, upon credit or otherwise, at such prices and upon such terms
     as are commercially reasonable; and (c) in addition to all other sums due
     the Lender, the Borrower will pay to the Lender upon demand all costs and
     expenses incurred by the Lender, including reasonable attorneys' fees and
     expenses, to obtain or enforce payment of Receivables or Obligations, or in
     the prosecution or defense of any action or proceeding either against the
     Lender or against the Borrower concerning any matter arising out of or
     connected with this Agreement or the Collateral or Obligations and all
     Supplemental Agreements, if any, or otherwise due pursuant to the terms of
     this Agreement. Any requirement of reasonable notice shall be met if such
     notice is mailed postage prepaid to the Borrower at the Borrower's address
     as set forth herein at least ten (10) days before the time of sale or other
     disposition. The Lender may be the purchaser at any such sale, if it is
     public, and, in the event the Lender is the purchaser, the Lender shall
     have all the rights of a good faith, bona fide purchaser for value from a
     secured party after default. The proceeds of sale shall be applied first to
     all costs and expenses of sale, including reasonable attorneys' fees and
     expenses, and second to the payment (in whatever order the Lender elects)
     of all Obligations, and any remaining proceeds shall be applied in
     accordance with the provisions of Part 5 of Article 9 of the New York
     Uniform Commercial Code. The Borrower shall remain liable to the Lender for
     any deficiency. Failure by the Lender to exercise any right, remedy or
     option under this Agreement or any present or future Supplemental Agreement
     or in any other agreement between the Borrower and the Lender, or delay by
     the Lender in exercising the same will not operate as a waiver. No waiver
     by the Lender will be effective unless it is in writing and then only to
     the extent specifically stated. Neither the Lender nor any party acting as
     the Lender's attorney pursuant to paragraph 2.12 hereof shall be liable for
     any good faith error of judgment or mistake of fact or law. The Lender's
     rights and remedies under this Agreement will be cumulative and not
     exclusive of any other right or remedy which the Lender may have.


     8. Other Provisions.

          8.1 Joint and Several Obligations. The obligations of DCI and DDI
     under this Agreement and the Supplemental Agreements shall be joint and
     several.

          8.2 Notices. All notices, requests and demands to or upon the
     respective parties hereto to be effective shall be in writing and, unless
     otherwise expressly provided herein, shall

                                       20
                                                           Page 159 of 207 Pages
<PAGE>


     be deemed to have been duly given or made when delivered by hand, or one
     (1) business day after being delivered to a courier for overnight delivery,
     or five (5) business days after being deposited in the mail, certified or
     registered mail, with return receipt requested, addressed to the addresses
     set forth in the preamble to this Agreement, or to such other address as
     may be hereafter notified by the respective parties hereto.

          8.3 Setoff. All sums at any time standing to the Borrower's credit on
     the Lender's books and all of the Borrower's property at any time in the
     Lender's possession, or upon or in which the Lender has a lien or security
     interest shall be security for all Obligations. In addition to and not in
     limitation of the above, with respect to any deposits or property of the
     Borrower in the Lender's possession or control, now or in the future, the
     Lender shall have the right after default and demand hereunder to setoff
     all or any portion thereof, at any time, against any Obligations hereunder,
     without prior notice or demand to the Borrower.

          8.4 Counsel Fees and Expenses. The Borrower agrees to pay all
     reasonable counsel fees and expenses, including recording and filing fees,
     incurred by the Lender in connection with the financing evidenced by this
     Agreement as well as any reasonable fees and expenses of counsel which the
     Lender may hereafter reasonably incur in protecting, enforcing, increasing
     or releasing any security held by the Lender. The Borrower specifically
     authorizes the Lender to pay all such fees and expenses and charge the same
     to its loan account.

          8.5 Further Assurance. The Borrower agrees that at any time, or from
     time to time, upon the written request of the Lender, the Borrower will
     execute and deliver such further documents and do such other acts and
     things as the Lender may reasonably request in order to fully effect the
     purposes of this Agreement and the Supplemental Agreements.

          8.6 Construction. This Agreement and the Supplemental Agreements may
     not be amended orally.

          8.7 Successors. All rights of the Lender hereunder shall inure to the
     benefit of its successors and assigns, and all Obligations of the Borrower
     shall bind the successors and assigns of the Borrower.


          8.8 Duration of Lien. All Collateral described in this Agreement shall
     remain Collateral as security for the performance of all Obligations of the
     Borrower under this Agreement until all monies required to be paid under
     this Agreement have been finally and irrevocably paid in full and all
     Obligations on the part of the Borrower to be paid, kept and

                                       21
                                                           Page 160 of 207 Pages
<PAGE>


     performed under this Agreement have been paid, kept and performed.

          8.9 Payments. The acceptance of any check, draft or money order
     tendered in full or partial payment of any Obligation hereunder is
     conditioned upon and subject to the receipt of final payment in cash.

          8.10 Exhibits and Schedules. All exhibits and schedules referred to
     herein and annexed hereto are hereby incorporated into this Agreement and
     made a part hereof.

          8.11 Governing Law. This Agreement shall be governed and construed in
     accordance with the internal laws of the State of New York, without regard
     to principles of conflicts of law.

          8.12 WAIVER OF RIGHT TO TRIAL BY JURY. THE BORROWER AND THE LENDER
     HEREBY WAIVE THE RIGHT TO TRIAL BY JURY IN ANY ACTION OR PROCEEDING OF ANY
     KIND OR NATURE IN ANY COURT IN WHICH AN ACTION MAY BE COMMENCED ARISING OUT
     OF THIS AGREEMENT, THE COLLATERAL AND SUPPLEMENTAL AGREEMENTS OR ANY
     ASSIGNMENT THEREOF OR BY REASON OF ANY OTHER CAUSE OF DISPUTE BETWEEN THE
     BORROWER AND THE LENDER.

          8.13 CONSENT TO JURISDICTION. THE BORROWER AND THE LENDER AGREE THAT
     ANY ACTION OR PROCEEDING TO ENFORCE, OR ARISING OUT OF, THIS AGREEMENT OR
     ANY DOCUMENT EXECUTED IN CONNECTION HEREWITH, MAY BE COMMENCED IN NEW YORK
     STATE IN MONROE COUNTY, OR IN THE UNITED STATES DISTRICT COURT FOR THE
     WESTERN DISTRICT OF NEW YORK, AND THE BORROWER WAIVES PERSONAL SERVICE OF
     PROCESS AND AGREES THAT A SUMMONS AND COMPLAINT COMMENCING AN ACTION OR
     PROCEEDING IN ANY SUCH COURT SHALL BE PROPERLY SERVED AND SHALL CONFER
     PERSONAL JURISDICTION IF SERVED BY REGISTERED OR CERTIFIED MAIL TO THE
     BORROWER, OR AS OTHERWISE PROVIDED BY THE LAWS OF NEW YORK STATE OR THE
     UNITED STATES.

          8.14 Reaffirmation. (a) DDI hereby reaffirms its obligations to
     Lobozzo pursuant to a Restated and Amended Subordinated Debenture in the
     face amount of $600,001, due January 31, 1998 (the "Lobozzo Debenture"),
     and DCI reaffirms its guaranty of the Lobozzo Debenture.

               (b) (i) DCI and DDI hereby reaffirm their obligations to Lobozzo
          to repay to Lobozzo $400,000 which Lobozzo advanced to the Borrowers
          pursuant to an Overadvance Agreement entered into between Lobozzo,
          NCFC and the Borrowers in May, 1995, and (ii) DCI hereby reaffirms its
          obligation to Lobozzo to repay to Lobozzo $500,000 additional advances

          which Lobozzo has advanced to DCI between the date of the Overadvance
          Agreement and the date of this Agreement.

                                       22
                                                           Page 161 of 207 Pages
<PAGE>


     IN WITNESS WHEREOF, the parties have caused this Agreement to be duly
executed and delivered by the proper and duly authorized officers as of the date
first above written.
                                             
                                             /s/ Joseph M. Lobozzo II
                                             -------------------------------
                                             JOSEPH M. LOBOZZO II

                                             DELTA COMPUTEC INC.



                                             By: /s/ Michael Julian
                                                 ----------------------------
                                             Name:
                                             Title:


                                             DELTA DATA NET, INC.


                                             By: /s/ Michael Julian
                                                 ----------------------------
                                             Name:
                                             Title:

                                       23
                                                           Page 162 of 207 Pages
<PAGE>


                                   SCHEDULE 1
                                   ----------


     Secured Party                     Collateral                 Debtor
- ------------------------------  ------------------------   --------------------
Forsythe/McArthur Assoc.        Communications Equipment   Delta Data Net, Inc.
First United Leasing            Communications Equipment   Delta Data Net, Inc.
VMX Credit Corp.                Computer Equipment         Delta Data Net, Inc.
Canon Financial Services        Communications Equipment   Delta Data Net, Inc.
Bell Atlantic Systems Leasing   Computer Equipment         Delta Computec Inc.
Oliver Allen Company            Computer Equipment         Delta Computec Inc.
National Canada Finance Corp.   Spare Parts Inventory      Delta Computec Inc.

                                                           Page 163 of 207 Pages

<PAGE>


                                   SCHEDULE 2
                                   ----------


                              Collateral Locations


Chicago                                      Rochester                  
                                                                        
DCI c/o Harris Bank                          366 White Spruce Boulevard 
311 West Monroe                              Rochester, New York  14623 
3rd Floor                                    
Chicago, Illinois  60606


Dallas                                       Teterboro                  
                                                                        
2100 N. Highway 360                          900 Huyler Street          
Suite 1804                                   Teterboro, New Jersey 07608
Grand Prarie, Texas 75050                    


Houston                                      Washington            
                                                                   
14515 Briar Hills Parkway                    122 Lafayette Avenue  
Suite 117                                    Laurel, Maryland 20707
Houston, Texas  77077                        


Philadelphia

1621 Loretta Avenue
Feasterville, Pennsylvania 19053

                                                           Page 164 of 207 Pages
<PAGE>


                                  SCHEDULE 2.1
                                  ------------


     The eligibility factor for Eligible Inventory during the term of this
Agreement shall be as follows:


     105% for the month of October, 1996.
     103 3/4% for the month of November, 1996.
     102 1/2% for the month of December, 1996.

                                                           Page 165 of 207 Pages

<PAGE>


                                   SCHEDULE 3
                                   ----------

                   Permitted Indebtedness (for Borrowed Money)

     Bell Atlantic Systems Capital Lease dated ________________.

     8% Subordinated Debenture dated October 28, 1992, in the original principal
amount of $600,001.00, payable to Joseph M. Lobozzo II, as amended and restated,
and not due on January 31, 1998.

     %8 Subordinated Debenture dated October 31, 1992, in the original principal
amount of $475,000.00, payable to Dataspan Systems, Inc. and Willcox & Gibbs
Dated Net, Inc., due October 3, 1997.

     Amended and Restated Promissory Note dated as of October 10, 1996, of Delta
Computec Inc. in the original principal amount of $750,000, payable to National
Canada Finance Corp.

                                                           Page 166 of 207 Pages
<PAGE>


                                  SCHEDULE 3(f)
                                  -------------

                                   Trade Names


                                   1.   DCI

                                   2.   The DCI Companies

                                   3.   PC Reserve

                                   4.   R & M Associates

                                   5.   Data Net

                                   6.   Data Span

                                   7.   SAI/Delta

                                   8.   Computer Support Inc.

                                   9.   Delta CompuTec Inc.

                                                           Page 167 of 207 Pages


<PAGE>
       THIS DOCUMENT IS A COPY OF THE EXHIBIT FILED ON OCTOBER 24, 1996
             PURSUANT TO A RULE 201 TEMPORARY HARDSHIP EXEMPTION.

                              AMENDED AND RESTATED
                                 PROMISSORY NOTE
                                 ---------------
$2,550,000.00                                                   October 10, 1996

     For value received, DELTA COMPUTEC INC. and DELTA DATA NET, INC., each of
which is a New York corporation with its principal office at 690 Huyler Street,
Teterboro, New Jersey 07608 (collectively, "Borrower"), jointly and severally
promise to pay to the order of JOSEPH M. LOBOZZO II ("Lender") on or before
December 10, 1996 ("Maturity Date") in lawful money of the United States of
America, at his office located at 690 Portland Avenue, Rochester, New York 14621
or, at Lender's option, at such other place as may be designated from time to
time by the Lender the principal sum of Two Million Five Hundred Fifty Thousand
and 00/100 Dollars ($2,550,000.00), or, if less, the aggregate unpaid principal
amount of all loans ("Loans") made by the Lender under an Amended and Restated
Credit Agreement ("Agreement") between the Borrower and the Lender, date of even
date herewith, as the same may be amended or supplemented from time to time,
together with interest thereon.

     This Note shall bear interest from the date hereof until maturity (whether
by acceleration or otherwise) on the balance of principal hereof from time to
time unpaid at a rate per annum equal to 1 3/4% in excess of the Prime Rate, as
defined below. After maturity (whether by acceleration or otherwise) this Note
shall bear interest on the unpaid principal hereof at a rate per annum equal to
3 3/4% in excess of the Prime Rate; provided, however, in no event shall the
rate of interest on this Note exceed the maximum rate authorized by applicable
law. Interest shall be calculated on the basis of one three hundred sixtieth
(1/360th) of the rate hereon for each calendar day such balance of principal is
unpaid, which will result in a higher effective annual rate. Interest shall be
payable monthly on the first day of each month, commencing November 1, 1996
until the Maturity Date and on the date the principal balance hereof is paid in
full. The rate of interest on this Note shall change simultaneously with a
corresponding change in the Prime Rate. The "Prime Rate" means the highest prime
rate published from time to time in the "Money Rates" column of the Wall Street
Journal or any successor to such publication.

     The Lender shall inscribe on a schedule attached to this Note, and any
continuation thereof, all Loans and payments made on account of principal hereof
and the dates thereof. Each such inscription shall be prima facie evidence of
facts so set forth. No failure by the Lender to make and no error by the Lender
in making such inscription shall affect the undersigned's obligation to repay
when due all sums advanced under this Note.

     No failure by the Lender hereof to exercise, and no delay in exercising,
any right or power hereunder shall operate as a waiver thereof, nor shall any
single or partial exercise by 

                                                           Page 168 of 207 Pages
<PAGE>



the holder of any right or power hereunder preclude any other right or power.
The rights and remedies of the holder as herein specified are cumulative and not
exclusive of any other rights or remedies which the holder may otherwise have.

     No modification, rescission, waiver, release or amendment of any provision
of this Note shall be made except by a written agreement subscribed by duly
authorized officers of the Borrower and the Lender.

     Reference is hereby made to the Agreement for provisions with respect to
prepayment, collateral and rights of acceleration of the principal hereof on the
occurrence of certain events.

     Borrower agrees to pay all reasonable costs and expenses incurred by the
holder in enforcing this Note or in collecting the indebtedness evidenced
hereby, including, without limitation, if the holder retains counsel for any
such purpose, reasonable attorneys' fees and expenses.

     Borrower hereby waives diligence, presentment, protest and demand, and also
notice of protest, demand, dishonor and nonpayment of this Note.

     This Note shall be construed under and governed by the internal laws of the
State of New York in effect from time to time without regard to principles of
conflicts of laws.

     The obligations of the undersigned under this Note are joint and several.

     THIS NOTE IS ISSUED IN ORDER TO AMEND, RESTATE AND EVIDENCE AND TO BE A
SUBSTITUTE FOR, BUT NOT TO BE A PAYMENT, SATISFACTION, CANCELLATION OR A
NOVATION OF A PORTION OF THE INDEBTEDNESS EVIDENCED BY THE THIRD AMENDED AND
RESTATED PROMISSORY NOTE DATED OCTOBER 27, 1995 FROM THE BORROWER TO NATIONAL
CANADA FINANCE CORP. (the "SUPERSEDED NOTE"), WHICH SUPERSEDED NOTE WAS
ASSIGNED, IN PART, TO THE LENDER; PROVIDED, HOWEVER, THAT THE SUBSTITUTION OF
THIS AMENDED AND RESTATED NOTE FOR THE SUPERSEDED NOTE DOES NOT EXTINGUISH THE
INDEBTEDNESS EVIDENCED BY THE SUPERSEDED NOTE OR ANY PORTION THEREOF AND THE
LIABILITIES OF THE BORROWER THEREUNDER AND HEREUNDER ARE CONTINUOUS.

                                        DELTA COMPUTEC INC.


                                        By: /s/ Michael Julian
                                           ---------------------------
                                        Name:
                                        Title:

                                                           Page 169 of 207 Pages
<PAGE>



                                        DELTA COMPUTEC INC.


                                        By: /s/ Michael Julian

                                           ---------------------------
                                        Name:
                                        Title:

                                                           Page 170 of 207 Pages
<PAGE>


                                    SCHEDULE
                                    --------


Principal Amount    Date      Payments       Additional Loans          Balance
   1544,661      10/10/96

                                                           Page 171 of 207 Pages


<PAGE>
       THIS DOCUMENT IS A COPY OF THE EXHIBIT FILED ON OCTOBER 24, 1996
             PURSUANT TO A RULE 201 TEMPORARY HARDSHIP EXEMPTION.

                              AMENDED AND RESTATED
                           GENERAL SECURITY AGREEMENT
                           --------------------------

     THIS AMENDED AND RESTATED GENERAL SECURITY AGREEMENT is made this 10th day
of October, 1996 by and among DELTA COMPUTEC INC. and DELTA DATA NET, INC., both
New York corporations with their principal offices and places of business at 900
Huyler Street, Teterboro, New Jersey 07608 (collectively, "Debtor"), and JOSEPH
M. LOBOZZO II, an individual with an office and place of business at 690
Portland Avenue, Rochester, New York (collectively, the "Secured Party").

                              W I T N E S S E T H :

     WHEREAS, Debtor executed and delivered to National Canada Finance
Corporation ("NCFC") a General Security Agreement dated April 1, 1994 (the "1994
Security Agreement");

     WHEREAS, on the date hereof, NCFC is assigning to Secured Party a portion
of its rights under the 1994 Security Agreement; and

     WHEREAS, to the extent assigned to Secured Party, Debtor and Secured Party
desire to amend and restate the 1994 Security Agreement in its entirety;

     NOW, THEREFORE, Debtor and Secured Party agree as follows:

     1. Security Interest. Debtor hereby grants to Secured Party a security
interest ("Security Interest") in all personal property and fixtures of Debtor,
of whatever kind and type and wherever located, whether now owned or hereafter
acquired, including, without limitation, all fixtures, equipment, inventory,
accounts, general intangibles, documents, instruments and chattel paper,
together with all proceeds and products thereof in any form, and parts,
accessories, attachments, special tools, additions and accessions thereto, and
all increases therein or profits received therefrom, and in all substitutions
therefore, and including any account items received by, or amounts deposited in,
an account maintained by Borrower at any Lock Box maintained for the benefit of
Secured Party (collectively, "Collateral").

     2. Indebtedness Secured. The Security Interest secures payment of a certain
Amended and Restated Promissory Note dated the date hereof between Debtor and
Secured Party and any substitution for or replacement or modification thereof,
including principal, interest and other amounts (i.e., attorney's fees, costs
and expenses) under the Amended and Restated Promissory Note (the
"Indebtedness"), which Amended and Restated Promissory Note is governed by the
terms of a certain Amended and

                                                           Page 172 of 207 Pages
<PAGE>


Restated Credit Agreement dated the date hereof between the Debtor and the

Secured Party (the "Credit Agreement").

     3. Representations and Warranties of Debtor. Debtor represents and
warrants, and so long as any Indebtedness remains unpaid shall be deemed
continuously to represent and warrant, that:

          (a) Debtor is the owner of the Collateral free of all security
     interests or other encumbrances, except the Security Interest and except as
     shown on Schedule 3(a) annexed hereto (collectively, "Permitted
     Encumbrances"), if any;

          (b) Debtor is duly organized and validly existing under the laws of
     the State of New York and is duly qualified and in good standing in every
     jurisdiction in which failure to do so qualified would have a material
     adverse effect on its business or assets;

          (c) Debtor is authorized to enter into this Security Agreement and the
     execution, delivery and per ormance of this Agreement by Debtor will not
     violate, or be in contravention of, Debtor's certificate of incorporation,
     by-laws, or other corporate documents or any indenture, agreement or
     undertaking to which Debtor is a party or by which Debtor may be bound;

          (d) Debtor is engaged in business operations; Debtor's chief executive
     office is specified in the first paragraph of this Agreement; and Debtor's
     records concerning the Collateral are kept at one of the addresses
     specified on Schedule 3(e) of this Agreement;

          (e) All of the Collateral is located at one of the addresses specified
     on Schedule 3(e) to this Agreement;

          (f) Any and all tradenames, division names, assumed names and other
     names under which Debtor transacts any part of its business are specified
     on Schedule 3(f) annexed hereto, if any;

          (g) Each account, general intangible and Chattel Paper constituting
     Collateral is genuine and enforceable in accordance with its terms against
     the party obligated to pay it "Account Debtor"); and

          (h) The amount represented by Debtor to Secured Party as owing by each
     Account Debtor or by all Account Debtors is the correct amount actually and
     unconditionally owing by such Account Debtor or Debtors, except for normal
     cash discounts where applicable.

                                       2
                                                           Page 173 of 207 Pages
<PAGE>


     4. Covenants of Debtor. So long as any Indebtedness remains unpaid, Debtor:

          (a) Will defend the Collateral against the claims and demands of all
     other parties including, without limitation, defenses, setoffs, claims and
     counterclaims asserted by any Account Debtor against Debtor and/or Secured
     Party, except, as to inventory, purchasers and lessees in the ordinary

     course of Debtor's business; will keep the Collateral free from all
     security interests or other encumbrances, except the Security Interest and
     except as shown of Schedule 3(a) hereto; and, except with respect to the
     sale or lease of Inventory in the ordinary course of Debtor's business,
     will not sell, transfer, lease, assign, deliver or otherwise dispose of any
     Collateral or any interest therein, or move the Collateral to any location
     except those specified on Schedule 3(e) without the prior written consent
     of Secured Party;

          (b) Will keep, in accordance with generally accepted accounting
     principles consistently applied, accurate and complete records concerning
     the Collateral; at Secured Party's request, will mark any and all such
     records to indicate the Security Interest; and will permit Secured Party or
     its agents at any reasonable time during regular business hours to inspect
     the Collateral and to audit and make extracts from such records or any of
     Debtor's books, ledgers, reports, correspondence or other records;

          (c) Will deliver to Secured Party upon demand, any Chattel Paper
     constituting, representing or relating to the Collateral or any part
     thereof, and any schedules, invoices, shipping, documents, delivery
     receipts, purchase orders, contracts or other documents representing or
     relating to the Collateral or any part thereof;

          (d) Will notify Secured Party promptly in writing of any change in
     Debtor's chief executive office, of any change in the address at which the
     Collateral or records concerning the Collateral are kept and of any change
     in Debtor's name, identity or corporate structure;

          (e) Will not, without Secured Party's written consent which consent
     will not be unreasonably withheld or delayed, make or agree to make any
     alteration, modification or cancellation of, or substitution for, or
     credits, adjustments or allowances on accounts, general intangibles or
     chattel paper constituting any Collateral (other than in the ordinary
     course of Debtor's business), and will notify Secured Party promptly of any
     material default by any Account Debtor in payment or other performance of
     his obligations with respect to any such Collateral;

                                       3
                                                           Page 174 of 207 Pages
<PAGE>


          (f) Will keep the tangible Collateral in good condition and repair;
     and will not use the Collateral in violation of any provisions of this
     Security Agreement, of any applicable statute, regulation or ordinance or
     of any policy insuring the Collateral;

          (g) Will pay all taxes, assessments and other charges of every nature
     which may be levied or assessed against the Collateral; will insure the
     Collateral against risks, and in coverage, form and amount, satisfactory to
     Secured Party, and, will cause each policy to be payable additionally to
     Secured Party and deliver each policy or certificate of insurance therefor
     to Secured Party; and


          (h) In connection herewith, will execute and deliver to Secured Party
     such financing statements, assignments (including, without limitation, if
     any of Debtor's accounts arise out of contracts with the United States or
     any department, agency or instrumentality thereof, assignments required to
     comply with the Federal Assignment of Claims Act) and other documents, do
     such other things relating to the Security Interest as Secured Party may
     reasonably request, pay all costs of title searches and filing financing
     statements, assignments or other documents in all public offices requested
     by Secured Party; but will not, without the prior written consent of
     Secured Party, file or authorize or permit to be filed in any public office
     any financing statement naming Debtor as debtor and not naming Secured
     Party as secured party, except in connection with any Permitted
     Encumbrances.

     5. Verification of Collateral. Secured Party shall have the right to verify
all or any Collateral in any reasonable manner and through any medium Secured
Party may consider reasonably appropriate, and Debtor agrees to furnish all
assistance and information and perform any acts which Secured Party may
reasonably require in connection therewith.

     6. Notification and Payments. From time to time while the Lock Box
Operating Agreement dated the date hereof between the Debtor and Manufacturers
and Traders Trust Company is in force and effect, or any substitute arrangement,
and in any event, after the occurrence of an Event of Default, (a) Secured Party
may notify all or any Account Debtors of the Security Interest and may also
direct such Account Debtors to make all payments on Collateral to Secured Party
and (b) Secured Party may notify Debtor in writing, before or after notification
to Account Debtors and without waiving in any manner the Security Interest, that
any payment on and from the Collateral received by Debtor (i) shall be held by
Debtor in trust for Secured Party in the medium in which received; (ii) shall
not be commingled with any assets of Debtor; and (iii) shall be turned over to
Secured Party not later than the next business day following the day of their

                                       4
                                                           Page 175 of 207 Pages
<PAGE>


receipt. All payments on and from Collateral received by Secured Party directly
or from Debtor shall be applied to the Indebtedness in such order and manner and
at such time as Secured Party shall, in its sole discretion, determine.

     7. Events of Default.

          (a) The occurrence of an Event of Default under the Credit Agreement
     shall constitute an Event of Default hereunder.

          (b) Upon the happening of any Event of Default, Secured Party's rights
     and remedies with respect to the Collateral shall be those of a Secured
     Party under the Uniform Commercial Code and under any other applicable law,
     as the same may from time to time be in effect, in addition to those rights
     granted herein and in any other agreement now or hereafter in effect
     between Debtor and Secured Party. Secured Party may require Debtor to
     assemble the Collateral and make it available to Secured Party at a place

     or places designated by Secured Party.

          (c) Without in any way requiring notice to be given in the following
     manner, Debtor agrees that any notice by Secured Party of sale or
     disposition of any Collateral, whether required by the Uniform Commercial
     Code or otherwise, shall constitute reasonable notice to Debtor if such
     notice is mailed by regular mail, postage prepaid, at least ten (10) days
     prior to such action, to the address of Debtor set forth in the first
     paragraph of this Security Agreement or to any other address which Debtor
     has specified in writing to Secured Party as the address to which notices
     hereunder shall be given to Debtor.

          (d) Debtor agrees to pay on demand all reasonable costs and expenses
     incurred by Secured Party in enforcing this Security Agreement, in
     realizing upon or protecting any Collateral, including, without limitation,
     if Secured Party retains counsel for advise, suit, insolvency proceedings
     or any of the above purposes, the reasonable attorneys' fees and expenses
     incurred by Secured Party.

     8. Miscellaneous.

          (a) Debtor hereby authorizes Secured Party, at Debtor's expense, to
     file such financing statement or statements relating to the Collateral
     without Debtor's signature thereon as Secured Party at its option may
     reasonably deem appropriate, and appoints Secured Party as Debtor's
     attorney-in-fact (without requiring Secured Party) to execute any such
     financing statement or statements in Debtor's name and to perform all other
     acts which Secured Party deems reasonably appropriate to perfect and

                                        5
                                                           Page 176 of 207 Pages
<PAGE>


     continue the Security Interest and to protect and preserve the Collateral.

          (b) After the occurrence of an Event of Default hereunder, Secured
     Party may demand, collect and sue on any of the accounts, chattel paper and
     general intangibles (in either Debtor's or Secured Party's name at the
     latter's option) with the right to enforce, compromise, settle or discharge
     such Collateral, and may indorse Debtor's name on any and all checks,
     commercial paper, and any other instruments pertaining to or constituting
     such Collateral.

          (c) Upon Debtor's failure to perform any of its duties hereunder,
     Secured Party may, but shall not be obligated to, perform any or all such
     duties in any reasonable manner, and Debtor shall pay an amount equal to
     the expense thereof to Secured Party forthwith upon written demand by
     Secured Party.

          (d) No course of dealing and no delay or omission by Secured Party in
     exercising any right or remedy hereunder shall operate as a waiver thereof
     or of any other right or remedy, and no single or partial exercise thereof
     shall preclude any other or further exercise thereof or the exercise of any

     other right or remedy. Secured Party may remedy any default by Debtor
     hereunder in any reasonable manner without waiving the default remedied and
     without waiving any other prior or subsequent default by Debtor. All rights
     and remedies of, Secured Party hereunder are cumulative.

          (e) The rights and benefits of Secured Party hereunder shall, if
     Secured Party so agrees, inure to any party acquiring any interest in the
     Indebtedness or any part thereof.

          (f) Secured Party and Debtor as used herein shall include the heirs,
     executors or administrators, or successors or assigns, of those parties.

          (g) No modification, rescission, waiver, release or amendment of any
     provisions of this Security Agreement shall be binding except by a written
     agreement subscribed by Debtor and by Secured Party. This Security
     Agreement is made under, and shall be governed by and construed under the
     laws of the State of New York applicable to contracts made and to be
     performed entirely within the State of New York and without giving effect
     to choice of law principles of the State of New York.

          (i) All terms, unless otherwise defined in this Security Agreement or
     in any financing statement, shall have the definitions set forth in the
     Uniform Commercial Code adopted in New York State, as the same may from
     time to time be in effect.

                                       6
                                                           Page 177 of 207 Pages
<PAGE>


          (j) This Security Agreement is and is intended to be a continuing
     Security Agreement and shall remain in full force and effect until all of
     the Indebtedness shall be finally and irrevocably paid in full.

          (k) This Security Agreement amends and restates the 1994 Security
     Agreement to the extent of the assignment by NCFC of its rights in the 1994
     Security Agreement to the Secured Party.

                                        DELTA COMPUTEC INC.


                                        By: /s/ Michael Julian
                                           ---------------------------
                                        Name:
                                        Title:


                                        DELTA DATA NET, INC.


                                        By: /s/ Michael Julian
                                           ---------------------------
                                        Name:
                                        Title:




                                        /s/ Joseph M. Lobozzo II
                                        ------------------------------
                                        JOSEPH M. LOBOZZO II

                                       7
                                                           Page 178 of 207 Pages
<PAGE>


                                  SCHEDULE 3(a)
                                  -------------

                        Permitted Liens and Encumbrances

          Security Interest in spare parts inventory granted to NCFC.

                                                           Page 179 of 207 Pages
<PAGE>


                                  SCHEDULE 3(e)
                                  -------------


                              Collateral Locations


Chicago                                      Rochester                 
                                                                       
DCI c/o Harris Bank                          366 White Spruce Boulevard
311 West Monroe                              Rochester, New York  14623
3rd Floor                                    
Chicago, Illinois  60606


Dallas                                       Teterboro                   
                                                                         
2100 N. Highway 360                          900 Huyler Street           
Suite 1804                                   Teterboro, New Jersey  07608
Grand Prairie, Texas  75050                  


Houston                                      Washington             
                                                                    
14515 Briar Hills Parkway                    122 Lafayette Avenue   
Suite 117                                    Laurel, Maryland  20707
Houston, Texas  77077                        


Philadelphia


1621 Loretta Avenue
Feasterville, Pennsylvania  19053

                                                           Page 180 of 207 Pages
<PAGE>


                                  SCHEDULE 3(f)
                                  -------------
                                   Trade Names


                                  1.  DCI

                                  2.  The DCI Companies

                                  3.  PC Reserve

                                  4.  R & M Associates

                                  5.  Data Net

                                  6.  Data Span

                                  7.  SAI/Delta

                                  8.  Computer Support Inc.

                                  9.  Delta CompuTec Inc.

                                                           Page 181 of 207 Pages


<PAGE>
       THIS DOCUMENT IS A COPY OF THE EXHIBIT FILED ON OCTOBER 24, 1996
             PURSUANT TO A RULE 201 TEMPORARY HARDSHIP EXEMPTION.

                              AMENDED AND RESTATED
                          UNLIMITED CONTINUING GUARANTY
                          -----------------------------

     AMENDED AND RESTATED UNLIMITED CONTINUING GUARANTY, ("Guaranty") dated the
10th day of October, 1996, made by SAI/DELTA, INC. (the "Guarantor"), a Florida
Corporation, in favor of JOSEPH M. LOBOZZO II (the "Lender") whose address is
690 Portland Avenue, Rochester, New York.

     WHEREAS, Delta Computec, Inc. and Delta Data Net, Inc. (collectively,
"Borrower") and National Canada Finance Corp. ("NCFC") entered into a certain
Credit Agreement dated as of April 1, 1994, as amended by Credit Agreement
Amendment No. 1 dated November 17, 1994, Credit Agreement Amendment No. 2 dated
January 24, 1995, Credit Agreement Amendment No. 3 dated April 3, 1995, Credit
Agreement Amendment No. 4 dated May 1, 1995 and Credit Agreement Amendment No. 5
dated October 27, 1995 (as amended, the "Credit Agreement");

     WHEREAS, Borrower executed and delivered to NCFC a Promissory Note dated
April 1, 1994, as amended and restated by an Amended and Restated Promissory
Note dated May 1, 1995 and as further amended and restated by a Third Amended
and Restated Promissory Note dated October 27, 1995 (as amended and restated,
the "Promissory Note");

     WHEREAS, Guarantor is a wholly owned subsidiary of the Borrower;

     WHEREAS, on March ___, 1995, Guarantor executed and delivered to NCFC its
Continuing Unlimited Guaranty (the "Guaranty") pursuant to which it guarantied
all of the obligations of Borrower to NCFC under the Credit Agreement and the
Promissory Note;

     WHEREAS, on the date hereof, NCFC is assigning to the Lender all but
$750,000 of the indebtedness owed to NCFC by Borrower evidenced by the Credit
Agreement and the Promissory Note and all of its right, title and interest in
certain ocuments executed in connection with the Credit Agreement and the
Promissory Note, including all of its right, title and interest in the Guaranty;

     WHEREAS, on the date hereof the Lender and the Borrower are amending and
restating the Credit Agreement (as amended and restated, the "Amended and
Restated Credit Agreement") and the Promissory Note (as amended and restated,
the "Amended and Restated Promissory Note") as such documents relate to the
indebtedness assigned by NCFC to Lender; and

     WHEREAS, Lender and the Guarantor desire to amend and restate the Guaranty;

                                                           Page 182 of 207 Pages
<PAGE>


     NOW, THEREFORE, the Guarantor hereby unconditionally guarantees to Lender
the full and prompt payment when due of all sums at any time owing by, and the

punctual performance of all liabilities and obligations of, the Borrower to the
Lender, now existing or hereafter arising, under the Amended and Restated Credit
Agreement and the Amended and Restated Promissory Note or in connection with any
transaction occurring pursuant thereto, however and whenever created, whether
primary or secondary, joint or several, absolute, contingent, or conditional,
due or to become due.

     1. The Guarantor shall be liable to Lender for all reasonable attorneys'
and paralegals' fees and expenses reasonably incurred, if any action or
proceeding is brought to enforce this Amended and Restated Unlimited Continuing
Guaranty or if any claim hereunder is referred to an attorney for collection.

     2. This Amended and Restated Unlimited Continuing Guaranty is a primary
obligation of the Guarantor. The liability of the Guarantor hereunder is direct
and may be enforced without requiring Lender first to resort to any other right,
remedy or security. Nothing shall discharge or satisfy the liability of the
Guarantor hereunder except the full payment and performance of all of the
obligations hereby guaranteed, with interest (as provided in the Amended and
Restated Credit Agreement) until fully paid. This Amended and Restated Unlimited
Continuing Guaranty shall not be impaired or affected by, nor shall the
Guarantor have any defense hereto based upon: (a) any modification, supplement,
extension, or amendment of any contract or agreement to which the parties
thereto may hereafter agree (including, without limitation, any modification,
supplement, extension, or amendment that has the effect of increasing the
outstanding or maximum amount of the obligations hereby guaranteed); (b) any
modification, release or other alteration of any of the obligations hereby
guaranteed or of any security therefore; (c) any agreement or arrangement
whatsoever with the Guarantor or anyone else; (d) any failure of Lender to
perfect its security interest in and liens on, or to preserve its rights to, any
collateral; or (e) the validity, legality, regularity, or enforceability of any
of the obligations hereby guaranteed, or of the Amended and Restated Credit
Agreement or any other agreement or instrument relating to the obligations
hereby guaranteed. This Amended and Restated Unlimited Continuing Guaranty is a
continuing guaranty which shall remain effective during the term of the Amended
and Restated Credit Agreement, and any renewal, replacement or restatement
thereof, and until all obligations hereby guaranteed have been paid in full. The
death, dissolution, liquidation, merger, consolidation, or other change of form
of the Guarantor or any other guarantor of the obligations hereby guaranteed
shall not cause the termination of this Amended and Restated Unlimited
Continuing Guaranty. Any 

                                       2
                                                           Page 183 of 207 Pages
<PAGE>


releases which may be given by Lender to any one or more other guarantors of the
obligations hereby guaranteed shall not release the Guarantor from this Amended
and Restated Unlimited Continuing Guaranty. Termination by any other guarantor
of any guaranty of the obligations hereby guaranteed shall not affect the
continuing liability of the Guarantor hereunder.

     3. Lender's books and records showing the accounts between Lender and the
Guarantor shall be admissible in any action or proceeding and shall constitute

prima facie proof thereof.

     4. All rights of the Guarantor to subrogation, reimbursement or indemnity
of any kind, or to recourse to security for the debts and obligations to Lender,
arising from payment by the Guarantor hereunder, are hereby subrogated to the
rights of Lender under this Amended and Restated Unlimited Continuing Guaranty
until all Obligations (as such term is defined in the Amended and Restated
Credit Agreement) of Borrower to Lender are paid in full.

     5. All sums at any time to the credit of the Guarantor and any property of
the Guarantor at any time in the possession of Lender or any affiliate may be
held by Lender or such affiliate as security for any and all obligations of the
Guarantor to Lender, no matter how or when arising, whether absolute or
contingent, whether due or to become due and whether under this Amended and
Restated Unlimited Continuing Guaranty or the Amended and Restated Credit
Agreement, and the Amended and Restated Promissory Note and other documents
relating thereto. In addition, whenever the obligations hereby guaranteed, or
any part thereof, are due and payable by the Guarantor, then Lender or any
affiliate may without prior notice to or demand on the Guarantor, elect in its
sole discretion to set off against the obligations hereby guaranteed any and all
moneys then or thereafter owed to the Guarantor by Lender or such affiliate,
whether or not the indebtedness or the obligation to pay such moneys is then
due. Lender or such affiliate shall be deemed to have exercised this right
immediately at the time of its election even through any charge therefor is made
or entered on Lender's or such affiliate's records subsequent to that time. All
reasonable costs and expenses, including, without limitation, attorneys' and
paralegals' fees (based on hours expended at standard hourly billing rates) paid
or incurred by Lender or such affiliate in connection with any such setoff shall
be paid by the Guarantor upon demand.

     6. All payments by the Guarantor pursuant to this Amended and Restated
Unlimited Continuing Guaranty shall be made to Lender at the address for
payments specified in the Amended and Restated Credit Agreement. Any payment
received by Lender from the Guarantor shall be applied Lender as follows:

                                       3
                                                           Page 184 of 207 Pages
<PAGE>


     First, to the payment of the reasonable costs and expenses of collection
     and all expenses (including, without limitation, any reasonable legal fees
     and disbursements and the allocated costs of in-house counsel), liabilities
     and advances made or incurred by Lender in connection therewith;

     Next, to Lender in accordance with the Amended and Restated Credit
     Agreement until all Obligations shall have been indefeasibly paid in full;
     and

     Finally, after payment in full of all Obligations and the termination of
     the Amended and Restated Credit Agreement, to the payment to the Guarantor,
     or its respective successors or assigns, or to whomsoever may be lawfully
     entitled to receive the same or as a court of competent jurisdiction may
     direct.


     7. Upon the occurrence of an Event of Default as provided in the Amended
and Restated Credit Agreement, Lender may proceed to enforce this Amended and
Restated Unlimited Continuing Guaranty against the Guarantor.

     8. The Guarantor represents and warrants that it has adequate means to
obtain on a continuing basis information concerning the financial condition and
operating of the Borrower, and that it is not relying on Lender to provide such
information at any time.

     9. The Guarantor acknowledges and agrees that it has received and expects
to continue to receive material benefits as a result of entering into this
Amended and Restated Unlimited Continuing Guaranty and the transactions
contemplated by the Credit Agreement. If, however, a court of competent
jurisdiction finally determines that, a to the Guarantor, the creation or the
enforcement of this Amended and Restated Unlimited Continuing Guaranty to any
extent constitutes a fraudulent transfer under applicable law, then this Amended
and Restated Unlimited Continuing Guaranty shall thereupon be deemed modified so
that the liability of the Guarantor under this Amended and Restated Unlimited
Continuing Guaranty shall be limited to the maximum amount for which this
Amended and Restated Unlimited Continuing Guaranty could be enforced without
constituting a fraudulent transfer by the Guarantor.

     10. If, after receipt of any payment of all or any part of the obligations
hereby guaranteed, Lender is for any reason compelled to refund or surrender
such payment to any person or entity, because such payment is determined to be
void or voidable as a preference, impermissible setoff, or a diversion of trust
funds, or based on any claim of breach of contract, breach of warranty,
illegality, invalidity, or fraud, or for any 

                                       4
                                                           Page 185 of 207 Pages
<PAGE>



other reason, then this Amended and Restated Unlimited Continuing Guaranty and
the obligations intended to be paid by such payment shall be reinstated, if
necessary, and shall continue in full force notwithstanding any contrary action
which may have been taken by Lender in reliance upon such payment. Any such
contrary action so taken shall be without prejudice to Lender's rights under
this Amended and Restated Unlimited Continuing Guaranty and shall be deemed to
have been conditioned upon such payment having become final and irrevocable.
Lender may defend, compromise, or pay any such claim to recover such payment as
it elects in its sole discretion. The provisions of this paragraph shall survive
the termination of this Amended and Restated Unlimited Continuing Guaranty.

     11. No election by Lender to proceed in one form of action or proceeding,
or against any party, or on any obligation, shall constitute a waiver of
Lender's right to proceed in any other form of action or proceeding or against
any other form of action or obligation. Specifically, but without limiting the
generality of the foregoing, no action or proceeding by Lender against the
Guarantor under any document or instrument evidencing or securing indebtedness
of the Guarantor to Lender shall serve to diminish the liability of the

Guarantor hereunder, except to the extent Lender realizes payment by such action
or proceeding. The Guarantor hereby waives any defense based upon an election of
remedies by Lender with respect to any property of the Guarantor or any other
person which now or hereafter secures the obligations of the Guarantor to
Lender, including but not limited to judicial foreclosure, exercise of power of
sale or taking a deed or assignment in lieu of foreclosure as to any collateral,
and the Guarantor shall be liable to Lender for any deficiency resulting from
the exercise by Lender of any such remedy, even though any right of subrogation,
reimbursement, or other right which the Guarantor may have against others might
be diminished or destroyed. The Guarantor agrees that Lender shall not be under
any obligation to marshal any assets in favor of the Guarantor or against or in
payment of any or all of the obligations hereby guaranteed.

     12. EXCEPT AS OTHERWISE EXPRESSLY PROVIDED HEREIN, THE GUARANTOR WAIVES:
NOTICE OF ACCEPTANCE OF This Amended and Restated Unlimited Continuing Guaranty;
THE RIGHT TO A JURY TRIAL IN ANY ACTION HEREUNDER OR ARISING OUT OF LENDER'S
TRANSACTIONS WITH THE GUARANTOR, AND THE RIGHT TO ASSERT DEFENSES OTHER THAN
PAYMENT, SETOFFS, AND COUNTERCLAIMS IN ANY SUCH ACTION; PRESENTMENT, DEMAND,
PROTEST AND NOTICE OF DEMAND, DISHONOR, AND PROTEST AS TO ANY INSTRUMENT; NOTICE
OF DEFAULT; NOTICE OF ANY AND ALL FAVORABLE AND UNFAVORABLE INFORMATION,
FINANCIAL OR OTHER, ABOUT THE GUARANTOR HERETOFORE, NOW OR HEREAFTER LEARNED OR
ACQUIRED BY LENDER; AND ALL OTHER NOTICES TO WHICH THE GUARANTOR MIGHT OTHERWISE
BE ENTITLED. THE GUARANTOR CONFIRMS THAT THE FOREGOING WAIVER IS INFORMED AND
VOLUNTARY.

                                       5
                                                           Page 186 of 207 Pages
<PAGE>


     13. The Guarantor hereby represents and warrants that: (a) it has the
corporate power and authority to execute, deliver, and perform this Amended and
Restated Unlimited Continuing Guaranty; (b) it has taken all necessary corporate
action (including without limitation, obtaining any required approval of its
stockholders) to authorize its execution, delivery, and performance of this
Amended and Restated Unlimited Continuing Guaranty; (c) no consent, approval, or
authorization of, or filing with, any governmental authority, and on consent of
any other person, is required in connection with its execution, delivery, and
performance of this Amended and Restated Unlimited Continuing Guaranty, except
for those already duly obtained or made; (d) this Amended and Restated Unlimited
Continuing Guaranty has been duly executed and delivered by the Guarantor and
constitutes its legal, valid, and binding obligation, enforceable against it in
accordance with its terms without defense, setoff, or counterclaim; and (e) the
Guarantor's execution, delivery, and performance of this Amended and Restated
Unlimited Continuing Guaranty do not and will not conflict with, or constitute a
violation or breach of, or constitute a default under, or result in the creation
or imposition of any lien or encumbrance upon this property of the Guarantor
(except as contemplated by this Amended and Restated Unlimited Continuing
Guaranty) by reason of the terms of (i) any mortgage, lease, agreement, or
instrument to which it is a party or which is binding upon it, (ii) any
judgment, law, statute, rule, or governmental regulation applicable to it, or
(iii) its Certificate or Articles of Incorporation or By-Laws.

     14. This Amended and Restated Unlimited Continuing Guaranty shall be

binding upon the Guarantor's successors and assigns. Upon any assignment by
Lender of its rights and obligations, or any part thereof, in accordance with
the Amended and Restated Credit Agreement, such assignee shall become vested
with Lender's rights and benefits hereunder to the extent of such assignment.

     15. All acts and transactions hereunder and the rights and obligations of
the parties hereto shall be governed, construed and interpreted in accordance
with the laws of the State of New York, except that no doctrine of choice of law
shall be used to apply the laws of any other state or jurisdiction.

     16. This Amended and Restated Unlimited Continuing Guaranty constitutes the
entire agreement of the Guarantor and Lender with respect to the subject matter
hereof, and represents a restatement and replacement of the Guaranty in its
entirety. This Amended and Restated Unlimited Continuing Guaranty may not be
modified, nor may any provision hereof or the observance thereof by waived,
except in a written agreement signed by the Guarantor and Lender.

                                       6
                                                           Page 187 of 207 Pages
<PAGE>


     17. The Guarantor agrees that, in addition to any other courts that may
have jurisdiction under applicable law and rules, the Supreme Court of the State
of New York in the County of Erie, and the United Stated District Court for the
Western District of New York shall each have jurisdiction to hear and determine
any claims or disputes pertaining directly or indirectly to this Amended and
Restated Unlimited Continuing Guaranty or to any matter arising herefrom. The
Guarantor expressly submits and consents, in advance, to such jurisdiction in
any action or proceeding in such courts, and agrees that venue shall be proper
in such courts for all such matters, hereby waiving personal service of the
summons and complaint, or other process or papers issued therein, and agreeing
that service of such summons or complaint or other process or papers may be made
by registered or certified mail (return receipt requested) addressed to it at
900 Huyler Street, Teterboro, New Jersey 07608, or at such other address of
which it shall have notified Lender in writing.

     18. Notwithstanding anything to the contrary in this Amended and Restated
Unlimited Continuing Guaranty, Lender may exercise all rights and remedies
provided for herein and by law.

     IN WITNESS WHEREOF, the parties hereto have executed this Amended and
Restated Unlimited Continuing Guaranty the date first above written.



                                        SAI/DELTA, INC.


                                        By: /s/ Michael Julian
                                           -------------------------------
                                        Name:
                                        Title:


                                        /s/ Joseph M. Lobozzo II
                                        ----------------------------------
                                        JOSEPH M. LOBOZZO II


                                       7
                                                           Page 188 of 207 Pages
<PAGE>


STATE OF NEW YORK          )
COUNTY OF MONROE           )        SS.:


     On this 10th day of October, 1996, before me personally came
___________________________________, to me known, who, being by me duly sworn,
did depose and say that he resides in
____________________________________________, that he is the _____________ of
SAI/DELTA, INC., the corporation described in and which executed the above
instrument; that he signed his name thereto by order of the Board of Directors
of said corporation.

                                        ----------------------------------------
                                                      Notary Public



STATE OF NEW YORK          )
COUNTY OF MONROE           ) ss.:

     On this 10th day of October 1996 before me personally came JOSEPH M.
LOBOZZO II, to me personally known and known to me to be the same person
described in and who executed the foregoing instrument, and he acknowledged to
me that he executed the same.

                                        ----------------------------------------
                                                      Notary Public


                                       8
                                                           Page 189 of 207 Pages


<PAGE>
       THIS DOCUMENT IS A COPY OF THE EXHIBIT FILED ON OCTOBER 24, 1996
             PURSUANT TO A RULE 201 TEMPORARY HARDSHIP EXEMPTION.

                              AMENDED AND RESTATED
                           GENERAL SECURITY AGREEMENT
                           --------------------------

     THIS AMENDED AND RESTATED GENERAL SECURITY AGREEMENT is made this 10th day
of October, 1996 by and among SAI/DELTA, INC., a Florida corporation with its
principal office and place of business at 10258 N.W. 46th Street, Sunrise,
Florida 33351 ("Debtor"), and JOSEPH M. LOBOZZO II, an individual with an office
and place of business at 690 Portland Avenue, Rochester, New York (collectively,
the "Secured Party").

                              W I T N E S S E T H :

     WHEREAS, Debtor executed and delivered to National Canada Finance Corp.
("NCFC") a General Security Agreement dated March ___, 1995 (the "1995 Security
Agreement");

     WHEREAS, on the date hereof, NCFC is assigning to Secured Party a portion
of its rights under the 1995 Security Agreement; and

     WHEREAS, to the extent assigned to Secured Party, Debtor and Secured Party
desire to amend and restate the 1995 Security Agreement in its entirety;

     NOW, THEREFORE, Debtor and Secured Party agree as follows:

     1. Security Interest. Debtor hereby grants to Secured Party a security
interest ("Security Interest") in all personal property and fixtures of Debtor,
of whatever kind and type and wherever located, whether now owned or hereafter
acquired, including, without limitation, all fixtures, equipment, inventory,
accounts, general intangibles, documents, instruments and chattel paper,
together with all proceeds and products thereof in any form, and parts,
accessories, attachments, special tools, additions and accessions thereto, and
all increases therein or profits received therefrom, and in all substitutions
therefor (collectively, "Collateral").

                                                           Page 190 of 207 Pages
<PAGE>


     2. Indebtedness Secured. The Security Interest secures payment of any and
all obligations of the Debtor to the Secured Party under a certain Amended and
Restated Unlimited Continuing Guaranty dated the date hereof from the Debtor to
the Secured Party, as the same may be amended from time to time (the
"Indebtedness"), which Amended and Restated Unlimited Continuing Guaranty
guaranties payment of a certain Amended and Restated Promissory Note dated the
date hereof from DELTA COMPUTEC INC., a New York corporation and the sole
shareholder of the Debtor (the "Borrower"), to Secured Party in the original
principal amount of $1,450,000 and any substitution for or replacement or
modification thereof, which Amended and Restated Promissory Note is governed by
the terms of a certain Amended and Restated Credit Agreement dated the date

hereof between the Borrower and the Secured Party (the "Credit Agreement").

     3. Representations and Warranties of Debtor. Debtor represents and
warrants, and so long as any Indebtedness remains unpaid shall be deemed
continuously to represent and warrant, that:

          (a) Debtor is the owner of the Collateral free of all security
     interests or other encumbrances, except the Security Interest and except as
     shown on Schedule 3(a) annexed hereto (collectively, "Permitted
     Encumbrances"), if any;

          (b) Debtor is duly organized and validly existing under the laws of
     the State of New York and is duly qualified and in good standing in every
     jurisdiction in which failure to do so qualified would have a material
     adverse effect on its business or assets;

          (c) Debtor is authorized to enter into this Security Agreement and the
     execution, delivery and performance of this Agreement by Debtor will not
     violate, or be in contravention of, Debtor's certificate of incorporation,
     by-laws, or other corporate documents or any indenture, agreement or
     undertaking to which Debtor is a party or by which Debtor may be bound;

                                       2
                                                           Page 191 of 207 Pages
<PAGE>


          (d) Debtor is engaged in business operations; Debtor's chief executive
     office is specified in the first paragraph of this Agreement; and Debtor's
     records concerning the Collateral are kept at one of the addresses
     specified on Schedule 3(e) of this Agreement;

          (e) All of the Collateral is located at one of the addresses specified
     on Schedule 3(e) to this Agreement;

          (f) Any and all tradenames, division names, assumed names and other
     names under which Debtor transacts any part of its business are specified
     on Schedule 3(f) annexed hereto, if any;

          (g) Each account, general intangible and Chattel Paper constituting
     Collateral is genuine and enforceable in accordance with its terms against
     the party obligated to pay it "Account Debtor"); and

          (h) The amount represented by Debtor to Secured Party as owing by each
     Account Debtor or by all Account Debtors is the correct amount actually and
     unconditionally owing by such Account Debtor or Debtors, except for normal
     cash discounts where applicable.

     4. Covenants of Debtor. So long as any Indebtedness remains unpaid, Debtor:

          (a) Will defend the Collateral against the claims and demands of all
     other parties including, without limitation, defenses, setoffs, claims and
     counterclaims asserted by any Account Debtor against Debtor and/or Secured
     Party, except, as to inventory purchasers and lessees in the ordinary

     course of Debtor's business; will keep the Collateral free from all
     security interests or other encumbrances, except the Security Interest and
     except as shown of Schedule 3(a) hereto; and, except with respect to the
     sale or lease of Inventory in the ordinary

                                       3
                                                           Page 192 of 207 Pages
<PAGE>


     course of Debtor's business, will not sell, transfer, lease, assign,
     deliver or otherwise dispose of any Collateral or any interest therein, or
     move the Collateral to any location except those specified on Schedule 3(e)
     without the prior written consent of Secured Party;

          (b) Will keep, in accordance with generally accepted accounting
     principles consistently applied, accurate and complete records concerning
     the Collateral; at Secured Party's request, will mark any and all such
     records to indicate the Security Interest; and will permit Secured Party or
     its agents at any reasonable time during regular business hours to inspect
     the Collateral and to audit and make extracts from such records or any of
     Debtor's books, ledgers, reports, correspondence or other records;

          (c) Will deliver to Secured Party upon demand, any Chattel Paper
     constituting, representing or relating to the Collateral or any part
     thereof, and any schedules, invoices, shipping, documents, delivery
     receipts, purchase orders, contracts or other documents representing or
     relating to the Collateral or any part thereof;

          (d) Will notify Secured Party promptly in writing of any change in
     Debtor's chief executive office, of any change in the address at which the
     Collateral or records concerning the Collateral are kept and of any change
     in Debtor's name, identity or corporate structure;

          (e) Will not, without Secured Party's written consent which consent
     will not be unreasonably withheld or delayed, make or agree to make any
     alteration, modification or cancellation of, or substitution for, or
     credits, adjustments or allowances on accounts, general intangibles or
     chattel paper constituting any Collateral (other than in the ordinary
     course of Debtor's business), and will notify Secured Party promptly of any
     material default by any Account Debtor in payment or other performance of
     his obligations with respect to any such
     Collateral;

                                       3
                                                           Page 193 of 207 Pages
<PAGE>


          (f) Will keep the tangible Collateral in good condition and repair;
     and will not use the Collateral in violation of any provisions of this
     Security Agreement, of any applicable statute, regulation or ordinance or
     of any policy insuring the Collateral;


          (g) Will pay all taxes, assessments and other charges of every nature
     which may be levied or assessed against the Collateral; will insure the
     Collateral against risks, and in coverage, form and amount, satisfactory to
     Secured Party, and, will cause each policy to be payable additionally to
     Secured Party and deliver each policy or certificate of insurance therefor
     to Secured Party; and

          (h) In connection herewith, will execute and deliver to Secured Party
     such financing statements, assignments (including, without limitation, if
     any of Debtor's accounts arise out of contracts with the United States or
     any department, agency or instrumentality thereof, assignments required to
     comply with the Federal Assignment of Claims Act) and other documents, do
     such other things relating to the Security Interest as Secured Party may
     reasonably request, pay all costs of title searches and filing financing
     statements, assignments or other documents in all public offices requested
     by Secured Party; but will not, without the prior written consent of
     Secured Party, file or authorize or permit to be filed in any public office
     any financing statement naming Debtor as debtor and not naming Secured
     Party as secured party, except in connection with any Permitted
     Encumbrances.

     5. Verification of Collateral. Secured Party shall have the right to verify
all or any Collateral in any reasonable manner and through any medium Secured
Party may consider reasonably appropriate, and Debtor agrees to furnish all
assistance and information and perform any acts which Secured Party may
reasonably require in connection therewith.

                                       4
                                                           Page 194 of 207 Pages
<PAGE>


     6. Notification and Payments. From time to time while the Lock Box
Operating Agreement dated the date hereof between the Debtor and Manufacturers
and Traders Trust Company is in force and effect, or any substitute arrangement,
and in any event, after the occurrence of an Event of Default, (a) Secured Party
may notify all or any Account Debtors of the Security Interest and may also
direct such Account Debtors to make all payments on Collateral to Secured Party
and (b) Secured Party may notify Debtor in writing, before or after notification
to Account Debtors and without waiving in any manner the Security Interest, that
any payment on and from the Collateral received by Debtor (i) shall be held by
Debtor in trust for Secured Party in the medium in which received; (ii) shall
not be commingled with any assets of Debtor; and (iii) shall be turned over to
Secured Party not later than the next business day following the day of their
receipt. All payments on and from Collateral received by Secured Party directly
or from Debtor shall be applied to the Indebtedness in such order and manner and
at such time as Secured Party shall, in its sole discretion, determine.

     7. Events of Default.

          (a) The occurrence of an Event of Default under the Credit Agreement
     shall constitute an Event of Default hereunder.

          (b) Upon the happening of any Event of Default, Secured Party's rights

     and remedies with respect to the Collateral shall be those of a Secured
     Party under the Uniform Commercial Code and under any other applicable law,
     as the same may from time to time be in effect, in addition to those rights
     granted herein and in any other agreement now or hereafter in effect
     between Debtor and Secured Party. Secured Party may require Debtor to
     assemble the Collateral and make it available to Secured Party at a place
     or places designated by Secured Party.

          (c) Without in any way requiring notice to be given in the following
     manner, Debtor agrees that any notice by

                                       5
                                                           Page 195 of 207 Pages
<PAGE>


     Secured Party of sale or disposition of any Collateral, whether required by
     the Uniform Commercial Code or otherwise, shall constitute reasonable
     notice to Debtor if such notice is mailed by regular mail, postage prepaid,
     at least ten (10) days prior to such action, to the address of Debtor set
     forth in the first paragraph of this Security Agreement or to any other
     address which Debtor has specified in writing to Secured Party as the
     address to which notices hereunder shall be given to Debtor.

          (d) Debtor agrees to pay on demand all reasonable costs and expenses
     incurred by Secured Party in enforcing this Security Agreement, in
     realizing upon or protecting any Collateral, including, without limitation,
     if Secured Party retains counsel for advise, suit, insolvency proceedings
     or any of the above purposes, the reasonable attorneys' fees and expenses
     incurred by Secured Party.

     8. Miscellaneous.

          (a) Debtor hereby authorizes Secured Party, at Debtor's expense, to
     file such financing statement or statements relating to the Collateral
     without Debtor's signature thereon as Secured Party at its option may
     reasonably deem appropriate, and appoints Secured Party as Debtor's
     attorney-in-fact (without requiring Secured Party) to execute any such
     financing statement or statements in Debtor's name and to perform all other
     acts which Secured Party deems reasonably appropriate to perfect and
     continue the Security Interest and to protect and preserve the Collateral.

          (b) After the occurrence of an Event of Default hereunder, Secured
     Party may demand, collect and sue on any of the accounts, chattel paper and
     general intangibles (in either Debtor's or Secured Party's name at the
     latter's option) with the right to enforce, compromise, settle or discharge
     such Collateral, and may endorse Debtor's name on any and all checks,
     commercial paper, and any other instruments pertaining to or constituting
     such Collateral.

                                       6
                                                           Page 196 of 207 Pages
<PAGE>



          (c) Upon Debtor's failure to perform any of its duties hereunder,
     Secured Party may, but shall not be obligated to, perform any or all such
     duties in any reasonable manner, and Debtor shall pay an amount equal to
     the expense thereof to Secured Party forthwith upon written demand by
     Secured Party.

          (d) No course of dealing and no delay or omission by Secured Party in
     exercising any right or remedy hereunder shall operate as a waiver thereof
     or of any other right or remedy, and no single or partial exercise thereof
     shall preclude any other or further exercise thereof or the exercise of any
     other right or remedy. Secured Party may remedy any default by Debtor
     hereunder in any reasonable manner without waiving the default remedied and
     without waiving any other prior or subsequent default by Debtor. All rights
     and remedies of, Secured Party hereunder are cumulative.

          (e) The rights and benefits of Secured Party hereunder shall, if
     Secured Party so agrees, inure to any party acquiring any interest in the
     Indebtedness or any part thereof.

          (f) Secured Party and Debtor as used herein shall include the heirs,
     executors or administrators, or successors or assigns, of those parties.

          (g) No modification, rescission, waiver, release or amendment of any
     provisions of this Security Agreement shall be binding except by a written
     agreement subscribed by Debtor and by Secured Party.

          (h) This Security Agreement is made under, and shall be governed by
     and construed under the laws of the State of New York applicable to
     contracts made and to be performed entirely within the State of New York
     and without giving effect to choice of law principles of the State of New
     York.

          (i) All terms, unless otherwise defined in this Security Agreement or
     in any financing statement, shall have the

                                       7
                                                           Page 197 of 207 Pages
<PAGE>


     definitions set forth in the Uniform Commercial Code adopted in New York
     State, as the same may from time to time be in effect.

          (j) This Security Agreement is and is intended to be a continuing
     Security Agreement and shall remain in full force and effect until all of
     the Indebtedness shall be finally and irrevocably paid in full.

          (k) This Security Agreement amends and restates the 1995 Security
     Agreement to the extent of the assignment by NCFC of its rights in the 1995
     Security Agreement to the Secured Party.

                                             SAI/DELTA, INC.



                                             By: /s/ Michael Julian
                                                 -------------------------
                                             Name:
                                             Title:


                                             /s/ Joseph M. Lobozzo II
                                             -----------------------------
                                                  JOSEPH M. LOBOZZO II

                                       8
                                                           Page 198 of 207 Pages

<PAGE>


                                  SCHEDULE 3(a)
                                  -------------


                        Permitted Liens and Encumbrances


                                      None.

                                                           Page 199 of 207 Pages

<PAGE>


                                  SCHEDULE 3(e)
                                  -------------


                              Collateral Locations



10258 N.W. 46th Street
Sunrise, Florida  33351

528 S. North Lake Boulevard
Ata Monte Springs, Florida  32701

900 Huyler Street
Teterboro, New Jersey  07608

366 White Spruce Boulevard
Rochester, New York  14623

                                                           Page 200 of 207 Pages
<PAGE>



                                  SCHEDULE 3(f)
                                  -------------

                                   Trade Names

                                      None.

                                                           Page 201 of 207 Pages


<PAGE>
                          LOCK BOX OPERATING AGREEMENT


     This is a Lock Box Operating Agreement (the "Agreement"), entered into as
of this ____ day of October, 1996, by and between Manufacturers and Traders
Trust Company, with an office for the conduct of business located at 44 Exchange
Street, Rochester, New York, 14614 (the "Bank") and Delta Computec Inc. ("DCI"),
and DCI's wholly-owned subsidiary, Delta Data Net, Inc. ("DDI" and, collectively
with DCI, the "Customer"), each of which have an office for the conduct of
business located at 900 Huyler Street, Teterboro, New Jersey 07608, to govern a
post office lock box arrangement between the parties to this Agreement. This
Agreement is for the benefit of Joseph M. Lobozzo II ("Lobozzo") pursuant to a
certain Amended and Restated Promissory Note of even date herewith. The Bank
acknowledges that it is acting as agent for Lobozzo for the purpose of
perfecting Lobozzo's security interest in certain assets of the Customer under
the Uniform Commercial Code.

     PROCEDURES:

     The Bank will rent a United States Post Office Lock Box (the "Lock Box")
for acceptance of the Customer's items to be processed by the Bank.

     All envelopes containing items to be processed through the Lock Box will be
mailed to the following address:
________________________________________________________________.

     The Customer hereby authorizes and directs the Bank to collect mail from
the Lock Box.

     The Bank will collect the contents of the Lock Box on a daily basis, in
accordance with the Bank's schedule in effect from time to time, on all days
when the Bank is open for business. The Bank will open the envelopes removed
from the

                                                           Page 202 of 207 Pages
<PAGE>



Lock Box and remove any checks  contained  therein.  Any  remittance  supporting
detail,  such as invoices or  correspondence,  will be left inside the envelope,
unless  the  Customer  specifically  requests  that such items be removed as set
forth in Section 2(i) of this Agreement.

     The Bank will record the amount of the check on the accompanying envelope.
A photocopy of any checks can be provided to the Customer upon request of the
Customer as set forth under Section 2(i) of this Agreement.

     The Bank will deposit checks upon which the payee or endorsee is DCI or
DDI, and shall have the option of returning to the Customer any check bearing a
different payee or endorsee.


     At the Customer's option, the Bank will mail to the Customer or deliver to
a customer-designated Bank branch for customer pickup daily, invoices and other
material, including copies of the checks. If the Customer requests that
remittance detail be returned via the United States mail, or other delivery
services, the following address will be used by the Bank until further notice
from the Customer: 900 Huyler Street, Teterboro, New Jersey 06708.

     The Bank will maintain a microfilm record of all checks processed in order
that a duplicate photocopy may be prepared should the need arise.

     The Bank will provide additional processing options specifically requested
by the Customer. The Customer will be charged an additional assessment for each
option. Such options may include express mail service, daily deposit reporting,
computer tape, or other services made available by the Bank from time to time.
Those processing options requested by the Customer are listed
below:__________________________________________________________.

                                                           Page 203 of 207 Pages
<PAGE>



     DEPOSIT OF CHECKS:

     The Bank will endorse all checks and other instruments received as directed
by the Customer, using either Option A or Option B.

______ Option A   CREDITED TO THE ACCOUNT OF WITHIN NAMED PAYEE.  ENDORSEMENT
                                   GUARANTEED THE BANK.

______ Option B   RESTRICTIVE ENDORSEMENT -- FOR DEPOSIT ONLY AND CUSTOMER NAME.

     The Bank will make at least one deposit on each banking day and will credit
the Customer's deposit account(s) listed
below:__________________________________.

     RETURNED CHECKS:

     The Bank will debit the Customer's deposit account for any checks which are
returned unpaid. The Bank will not redeposit these checks unless it has received
written authorization from the Customer to do so.

     CHARGES:

     The Customer agrees that the Bank may direct charge the DCI account number
__________________ for the annual items' bundling and post office Lock Box
rental fees (payable in advance) as assessed by the United States Post Office.
The Customer also agrees to pay for the use of the Bank's Lock Box Services to
be provided pursuant to this Agreement in the manner and amount listed below:
_____________________________________________________. If no account has been
established by the Customer with the Bank, the Customer agrees to pay the
estimated annual fees in advance, with a reconciliation of such amounts on an
annual basis.


                                                           Page 204 of 207 Pages
<PAGE>


     INCONSISTENCIES WITH OTHER AGREEMENTS:

     In carrying out this Agreement, the parties shall also be bound by the
terms of any Customer account agreements with the Bank. If there is an
inconsistency between this Agreement and any such account agreement, the terms
of this Agreement shall prevail.

     TERMS AND TERMINATIONS:

     This Agreement shall be effective as of the above date, and shall continue
in force until terminated at the end of any calendar month by either party
giving to the other prior written notice of not less than thirty (30) days, or
until terminated by the Bank for the Customer's failure to make timely payment.

     MISCELLANEOUS:

     This Agreement shall be interpreted and construed in all respects under the
laws of the State of New York and the parties hereto consent to the jurisdiction
and venue of the State and/or Federal courts located within Monroe County, State
of New York for the resolution of any such disputes.

     ASSIGNMENTS; PARTIES

     Neither party to this Agreement may assign its rights or obligations under
this Agreement without the express written consent of all other parties, except
that the obligations of the Bank under this Agreement may be provided or
fulfilled by any subsidiary, affiliate or subcontractor. No third party to this
Agreement shall have any right or benefit hereunder.

     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed by their duly authorized officers and to be effective as of the date
first written above.

                                                           Page 205 of 207 Pages
<PAGE>



                                     MANUFACTURERS AND TRADERS TRUST
                                       COMPANY


                                     By: _______________________
                                         Name:
                                         Title:

                                     DELTA COMPUTEC INC.


                                     By: _______________________

                                         Name:
                                         Title:

                                     DELTA DATA NET, INC.


                                     By: _______________________
                                         Name:
                                         Title:

                                                           Page 206 of 207 Pages


<PAGE>
       THIS DOCUMENT IS A COPY OF THE EXHIBIT FILED ON OCTOBER 24, 1996
             PURSUANT TO A RULE 201 TEMPORARY HARDSHIP EXEMPTION.

                            DALEY-HODKIN CORPORATION
                            AUCTIONEERS - APPRAISERS

135 Pinelawn Road                                                 (516) 293-0200
MELVILLE, NEW YORK 11747-3144                                FAX. (516) 293-0328

                                 April 24, 1996
VIA UNITED PARCEL SERVICE

National Bank of Canada
125 West 55th Street - 23rd Floor
New York, New York  10019-5366

Attention: E. Lynn Forgosh

                            Re: Delta Data Net, Inc.
                                900 Huyler Street
                                Teterboro, NJ

Dear Ms. Forgosh:

Enclosed is our remittance report and a check in the amount of $122,182.10 which
represents the net proceeds for the above referenced auction sale which was
conducted on Tuesday, April 9, 1996.

In addition to our remittance report we have enclosed the following
documentation:

         Exhibit  "A"      - Auction Sale Sheets
         Exhibit  "B"      - Sold After Sale
         Exhibit  "C"      - Refunds and Adjustments
         Exhibit  "D"      - Auction Expenses
         Exhibit  "E"      - Miscellaneous Expenses
         Exhibit  "F"      - Registered Bidders

The adjusted gross proceeds of the auction sale were $156,670.40. There were 112
registered bidders from New York, New Jersey, Pennsylvania and Connecticut.

                                       Yours truly,

                                       DALEY-HODKIN CORPORATION

                                       Joseph Hodkin

JH/ef
enclosure

cc: Walter Greenhalgh, Esq. (w/o detail)

                                                           Page 207 of 207 Pages



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