Document:

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                                                                   EXHIBIT 10.79

                                  JOHN FUINI

                              September 28, 2001

Applied Data Communications, Inc.
3324 South Susan Street
Santa Ana, California 92704

Gentlemen:

     The undersigned hereby agrees to purchase from Applied Data Communications,
Inc., a Delaware corporation ("ADC"), an aggregate of ten thousand (10,000)
shares of Series B Preferred Stock ("Preferred Stock"), each convertible into
one hundred (100) shares of Common Stock, on the following terms and conditions:

     1.  The purchase price for the Preferred Stock in terms of face amount of
indebtedness shall be $24.8937 per share, each such share being convertible into
one hundred 100 shares of Common Stock.  The purchase price shall be payable in
cash or in cancellation of $248,937 in face amount of indebtedness at the rate
of $24.8937 for each share of Series B Preferred Stock issued.  Such
indebtedness may comprise an obligation to the undersigned or to Interim Capital
and assigned to the undersigned for submission and cancellation by ADC and the
undersigned.  The purchase price indebtedness was compromised and agreed upon by
a Settlement Agreement dated September 20, 2001 between ADC and the undersigned,
which is ratified and confirmed hereby.

     2.  Within a reasonable time following the date hereof, ADC shall deliver
to the undersigned purchaser a certificate or certificates for the number of
fully paid and nonassessable shares of Preferred Stock purchased hereunder.

     3.  The undersigned understands that the shares purchased hereunder
constitute "restricted securities" under the federal securities laws inasmuch as
they are, or will be, acquired from ADC in transactions not involving a public
offering and accordingly may not, under such laws and applicable regulations, be
resold or transferred without registration under the Securities Act of 1933, as
amended (the "1933 Act") or an applicable exemption from such registration.  The
undersigned purchaser represents that he is acquiring the shares of Preferred
Stock under this agreement for investment and not for the purpose of resale or
distribution thereof.

     4.  If at any time during the period commencing on the date hereof and
ending on June 30, 2011, ADC shall determine to register for its own account or
the account of others under the 1933 Act any of its equity securities, other
than on Form S-4 or Form S-8 or their then equivalents relating to equity
securities to be issued solely in connection with any acquisition of any entity
or business, or equity securities issuable in connection with stock option or
other employee benefit plans, ADC shall send to the holder of shares written
notice of such determination and, if within twenty (20) days after receipt of
such notice, such holder shall so request in writing ("Selling Holder"), ADC
shall include in such Registration Statement all or any part of the shares
issuable or
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issued upon conversion of the Preferred Stock issued hereunder ("Registrable
Securities") such Selling Holder requests to be registered. The obligations of
ADC may be waived by holders holding a majority in interest of the Registrable
Securities. In the event that the managing underwriter for said offering advises
ADC in writing that the inclusion of such securities in the offering would be
materially detrimental to the offering, such securities shall nevertheless be
included in the Registration Statement, provided that the holder of the shares
that desires to have shares included in the Registration Statement agrees in
writing, for a period of ninety (90) days following such offering, not to sell
or otherwise dispose of such shares pursuant to such Registration Statement,
which Registration Statement ADC shall keep effective for a period of at least
nine (9) months following the expiration of such 90-day period.

     5.  All expenses, other than underwriting discounts and commissions and
other fees and expenses of investment bankers and other than brokerage
commissions, incurred in connection with registrations, filings or
qualifications, including, without limitation, all registration, listing and
qualification fees, printers and accounting fees and the fees and disbursements
of counsel for ADC and the Selling Holder, shall be borne by ADC; provided,
however, that ADC shall only be required to bear the fees and out-of-pocket
expenses of one legal counsel selected by the Selling Holder in connection with
such registration.

     6.  The rights to have ADC register Registrable Securities pursuant to this
agreement shall be automatically assigned by the holder to transferees or
assignees of all or any portion of such securities only if (i) the holder agrees
in writing with the transferee or assignee to assign such rights, (ii) ADC is,
within a reasonable time after such transfer or assignment, furnished with
written notice of the name and address of such transferee or assignee, (iii)
such assignment is in accordance with and permitted by law and all other
agreements between the transferor or assignor and ADC, including without
limitation, shareholder's agreements, warrants and subscription agreements, and
the transferor or assignor otherwise is not in material default of any
obligation to ADC under any such other agreement, and (iv) at or before the time
ADC received the written notice contemplated by clause (ii) of this sentence,
the transferee or assignee agrees in writing with ADC to be bound by all of the
provisions contained herein.

     7.  This agreement and the documents referred to herein constitute the
entire agreement and understanding of the parties hereto with respect to the
subject matter hereof, and supersede all prior and contemporaneous agreements
and understandings, whether oral or written, between the parties hereto with
respect to the subject matter hereof.

     8.  ADC represents and warrants that (a) the shares of Preferred Stock
purchased hereunder shall be validly issued, fully paid and nonassessable shares
of Series B Preferred Stock, each of which is convertible into one hundred (100)
shares of Common Stock, and (b) ADC is a corporation in good standing under the
laws of the State of Delaware and is fully entitled and empowered to enter into
and perform this agreement.  This agreement is binding and enforceable against
ADC in accordance with its terms.
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     Please acknowledge your agreement by executing the enclosed copy of this
letter and returning it to the undersigned.

     Dated as of September 28, 2001.

                                   Very truly yours,

                                     /s/ John Fuini
                                   --------------------------
                                   John Fuini

APPLIED DATA COMMUNICATIONS, INC.

By  /s/ Walter J. Kane
  --------------------------------------
  Walter J. ("Pat") Kane, President

By  /s/ Barry K. Sugden, Jr.
  ------------------------------------------
  Barry K. Sugden, Jr., Chief Financial Officer
  and Secretary<PAGE>

                                                                   Exhibit 10.80

Applied Data Communications, Inc.
3324 S. Susan Street
Santa Ana, CA  92704-6841

     Re:  Series C Preferred Stock
          ------------------------

Gentlemen:

     I hold 68,404 shares of Series C Preferred Stock of Applied Data
Communications, Inc. ("ADC") which I acquired to fulfill voting requirements
imposed by Thomas Garlock and the Leasing Partnership of Star Media Partners and
MultiMedia Disk Duplicators.

     This will confirm my understanding and agreement that I will convert all
shares of Series C Preferred Stock which are no longer subject to such proxy,
whether because ADC has met requirements or otherwise.  I will not exercise the
voting rights of the Series C Preferred Shares.

     This commitment is binding on my successors, assigns and heirs.

     Executed this 28/th/ day of September, 2001.

                                             /s/ Walter J. Kane
                                        ----------------------------------------
                                        Walter J. ("Pat") Kane

Acknowledged and Accepted:

     /s/ Barry K. Sugden, Jr.
------------------------------------
Barry K. Sugden, Jr.
for Applied Data Communications, Inc.
September 28, 2001<PAGE>

                                                                   EXHIBIT 10.81

                                    AGREEMENT

WHEREAS, Applied Data Communications, Inc., ("ADC" or "Borrower") requires
additional financing to capitalize on business opportunities, presently
available to it, and George M. Colin ("Lender") is willing to provide such
financing ("Borrowing") under terms and conditions as set forth below,

NOW THEREFORE, ADC and Lender (collectively "Parties"), in exchange for the
foregoing and other good and valuable consideration, do hereby agree and
covenant as follows:

1.       Amount of Borrowing.
         Amount of the Borrowing shall be $300,000.

2.       Rate, Fees.
         Borrower shall compensate Lender with interest paid monthly, in the
         amount of 1% per month, in addition to administrative fees paid
         monthly, in the amount of 1% per month. Lender hereby grants to
         Borrower the right to pay interest and fees in registered common shares
         of the Borrower's stock, valued at $ .50 per share, with said shares to
         be issued within thirty (30) days of payoff of the note.

         Lender will permit Borrower to pay interest and fees in Series B
         preferred shares, convertible to common shares at the exchange rate of
         100 shares of common stock for every share of Series B preferred stock.
         Such Series B preferred shares will be adjusted upward to yield 20%
         more shares of common stock, should Borrower be unable to provide
         registered shares in its place. Lender will permit borrower to convert
         the note prior to its maturity date, provided that the number of such
         shares paid for interest and fees will assume the note was held to
         maturity.

3.       Term, Prepayment.
         The Borrowing shall commence on June 1, 2001 and shall be repayable in
         its entirety on December 1, 2001. Said Borrowing may be repaid in whole
         or in part, by the Borrower, without premium or penalty, at any time
         prior to the Maturity Date, at the option of the Borrower, provided,
         however, that the Lender shall be entitled to retain all options as
         defined under paragraph 4 hereunder, regardless of whether borrowing is
         prepaid.

4.       Additional Consideration.
         Borrower shall grant Lender options to purchase 375,000 shares of
         registered common stock of the Borrower, at a price of $ .80 per common
         share, such options being available for a period of twenty-four months,
         commencing with the date of this note. Options may not be exercised
         prior to January 1, 2002.

5.       Legal and Collection Fees.
         Borrower agrees to compensate Lender for reasonable legal and
         collection fees and expense incurred by Lender, in the event that
         Borrower is unable to repay Borrowing when due, or issue registered
         common shares when due.
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6.       Modification.
         The terms of this  Agreement  shall not be varied,  altered or modified
         except in writing signed by the Borrower and the Lender.

7.       Conversion.
         Conversion of borrowings as defined hereunder, shall occur on or before
         December 1, 2001. Lender agrees to convert principal amount $300,000 to
         1.0 million shares of the Borrower's "registered" common stock (price
         of $ .30 per common stock). Lender will permit Borrower to convert said
         note into Borrower's Series B preferred shares, convertible to common
         shares at the exchange rate of 100 shares of common stock for every
         share of Series B preferred stock. Such Series B preferred shares will
         be adjusted upward to yield 20% more shares of common stock, adjusted
         to 1.2 million common shares, should Borrower be unable to provide
         registered common shares on the conversion date.

         Should Lender request conversion of this note to such shares of Series
         B preferred stock, prior to maturity of the note, Lender will be
         entitled to receive all of such interest and fee shares, per paragraph
         2, herein, as if such note were held to maturity.

         Pursuant thereto, total shares, including interest and fees (six
         months), under the conversion option, would be the aforementioned 1.2
         million common shares, plus 86,400 shares for fees and interest, or a
         total of 1,286, 400 (12,864 shares of Series B Preferred Stock).

8.       Conversion of Series B Preferred Stock.

         Borrower will convert all Series B Preferred Stock to registered common
         shares of the Borrower's stock not later than December 31, 2001. The
         Borrower will take all necessary action to insure conversion of Series
         B Preferred stock to registered shares of Borrower's common stock
         before December 31, 2001. It is agreed that Borrower will increase the
         total number of common shares due (1,286,400) by 25% if conversion is
         not effected by March 31, 2002. After that date, penalty and shares
         will be an additional 15% per month, or fraction thereof, on a
         cumulative basis, until registered common shares are issued and
         delivered.

9.       Validity Period.
         All provisions herein are subject to renegotiation after June 14, 2001.

10.      Jurisdiction, Arbitration.
         The provisions of this Agreement are to be construed according to, and
         are to be governed by the laws of the State of California.

         IN WITNESS WHEREOF, Parties acknowledge their agreement with the
aforementioned terms and conditions, by their signatures, as indicated below.
<PAGE>

Applied Date Communications, Inc.                 George M. Colin

By:      /s/ Walter J. Kane                         /s/ George M. Colin
    -----------------------                       ---------------------
                                                  Lender
     Walter J. "Pat" Kane,
     President

     3324 South Susan Street                      23412 Pacific Park Dr., #20H
     Santa Ana, CA 92704                          Aliso Viejo, CA 92656

Date:     6-1-01                                  Date:       6-1-01
       ---------                                           ---------

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