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                                                                     EXHIBIT 1.7


                            ASSET PURCHASE AGREEMENT

        This Asset Purchase Agreement (the "Agreement"), dated as of May 4,
1998, is made and entered into by and between CSI COMPUTER SPECIALISTS INC., a
Delaware corporation (the "Purchaser"), and INTERSCIENCE COMPUTER CORPORATION, a
California corporation (the "Seller").

                                    RECITALS:

        WHEREAS, Seller is engaged in the business of, among other things,
servicing and maintaining laser printers (and the sale of consumable products in
connection therewith) through maintenance contracts with its customers (the
"Business") including the service and maintenance of high speed laser printers
manufactured by Siemens Nixdorf Printing Systems (the "Siemens Laser Printer
Maintenance Business"); and

        WHEREAS, Seller desires to sell, transfer and assign to Purchaser, and
Purchaser desires to purchase and acquire from Seller, certain of the assets of
Seller relating to the operation of the Siemens Laser Printer Maintenance
Business and in connection therewith, Purchaser has agreed to assume certain of
the liabilities of Seller relating to Seller's Siemens Laser Printer Maintenance
Business, all on the terms set forth herein;

      NOW, THEREFORE, in consideration of the mutual covenants and agreements
set forth in this Agreement, and for other good and valuable consideration, the
receipt and sufficiency of which are hereby acknowledged, the parties hereto
agree as follows:

                                   ARTICLE I.

                           SALE OF ASSETS AND CLOSING
        1.1 Assets.

                1.1.1   Assets Transferred. On the terms and subject to the
                        conditions set forth in this Agreement, Seller will
                        sell, transfer, convey, assign and deliver to Purchaser,
                        and Purchaser will purchase and pay for, at the Closing,
                        all of Seller's right, title and interest in, to and
                        under the following Assets of Seller which were used by
                        Seller in connection with the Siemens Laser Printer
                        Maintenance Business as the same shall exist on the
                        Closing Date (collectively, the "Assets"):

                        1.1.1.1 Business Contracts With Customers. Certain
                                purchase orders, computer maintenance or service
                                agreements and other contracts listed on
                                attached Schedule 1.1.1.1 hereto which are
                                utilized in or part and parcel of the conduct of
                                the Siemens Laser Printer Maintenance Business
                                (the "Business Contracts"). Seller represents
                                that these Business Contracts are



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                                transferable by Seller; in lieu of language to
                                that effect in the Business Contracts. Seller
                                will provide consents signed by its customers
                                agreeing to this transfer.

                        1.1.1.2 Books and Records. Copies of all Books and
                                Records used or held for use relating to the
                                Assets, including copies of all maintenance and
                                other technical manuals used in connection with
                                the Siemens Laser Printer Maintenance Business
                                and the Business Contracts (the "Business Books
                                and Records").

                        1.1.1.3 Other Assets and Properties. All other Assets
                                and Properties of Seller (and its assignment
                                estate) listed on attached Schedule 1.1.1.3
                                (the "Other Assets") and used or held for use in
                                connection with the Siemens Laser Printer
                                Maintenance Business except the Excluded Assets
                                (as defined in Section 1.1.2).

                1.1.2   Excluded Assets. Notwithstanding anything in this
                        Agreement to the contrary, except for those assets
                        explicitly set forth in section 1.1.1. above, all
                        other assets are excluded from said sale including any
                        inventory used to service said accounts.

                        1.1.2.1 Accounts Receivable. All accounts receivable and
                                the proceeds thereof, as of closing date,
                                representing revenues and proceeds of sales
                                made, completed and delivered by Seller prior to
                                closing including without limitation, all
                                payments, notes, bonds and other evidences of
                                Indebtedness of and rights to receive payments
                                arising out of sales or otherwise occurring in
                                the conduct of the Siemens Laser Printer
                                Maintenance Business and any rights of Seller
                                with respect to any third party collection
                                procedures or any other Actions or Proceedings
                                which have been commenced in connection
                                therewith (the "Accounts Receivable").

                        1.1.2.2 Inventory and Other Parts. Inventory or other
                                parts manufactured by Seller or used by Seller
                                in connection with the Siemens Laser Printer
                                Maintenance Business, including all finished
                                goods, raw materials, replacement parts,
                                consumable products and manufacturing supplies
                                (the "Inventory") located at sites and at the
                                storage unit in Maryland will be negotiated by
                                separate agreement.


        1.2 Liabilities.

                1.2.1   Assumed Liabilities. In connection with the sale,
                        transfer, conveyance, assignment and delivery of the
                        Assets pursuant to this Agreement, on the terms and
                        subject to the conditions set forth in this Agreement,
                        at the Closing, Purchaser will assume and agree to pay



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                        perform and discharge when due the following obligations
                        of Seller arising in connection with the operation of
                        the Siemens Laser Printer Maintenance Business, as the
                        same shall exist on the Closing Date (the "Assumed
                        Liabilities"), and no others.

                        1.2.1.1 Obligations Under Contracts and Licenses. With
                                respect to the Siemens Laser Printer Maintenance
                                Business, those obligations of Seller under the
                                Business Contracts listed in attached Schedule
                                1.1.1.1, hereto to be performed as those
                                Business Contracts are modified and assumed, to
                                the satisfaction of Purchaser in Purchaser's
                                sole and complete discretion, on or after the
                                Closing Date, and excluding any such obligations
                                arising or to be performed prior to the Closing
                                Date.

        1.3 Purchase Price; and Allocation.

                1.3.1   The purchase price for the Business Contracts
                        (collectively "the Purchase Price"), shall be as
                        follows: $10,000.00 in Cash at closing.

                1.3.2   Payment of Sales, Use and Transfer Taxes. Purchaser
                        shall pay all sales, use, transfer, and other similar
                        taxes and fees ("Transfer Taxes") arising out of or in
                        connection with the transactions effected pursuant to
                        this Agreement.

                1.3.3   No Conflicts. The execution and delivery by Purchaser
                        of this Agreement does not, and the execution and
                        delivery by Purchaser of the Business Contracts to which
                        it is a party, the performance by Purchaser of its
                        obligations under this Agreement and such Business
                        Contracts and the consummation of the transactions
                        contemplated hereby and thereby will not conflict with
                        or result in a violation or breach of any of the terms,
                        conditions or provisions of the certificate or articles
                        of incorporation or by-laws or other comparable
                        corporate charter document of Purchaser or constitute
                        (with or without notice or lapse of time or both) a
                        default under, require Purchaser to obtain any consent,
                        approval or action of, make any filing with or give any
                        notice to any Person as a result or under the terms of,
                        any Contract or License to which Purchaser is a party.


                                   ARTICLE II

                                  MISCELLANEOUS
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        2.1     Notices. All notices, requests and other communications
                hereunder must be in writing and will be deemed to have been
                duly given only if delivered personally or by facsimile
                transmission or mailed (first class postage prepaid) to the
                parties at the following addresses or facsimile numbers:

                      If to Purchaser, to:
                      CSI, Computer Specialists Inc. 
                      904 Wind River Lane
                      Suite 100
                      Gaithersburg, MD 20878 
                      Facsimile No.:
                      Attn:  Mr. Bill Pershin


                      If to Seller, to:
                      Interscience Computer Corporation
                      5236 Colodny Drive
                      Suite 100
                      Agoura Hills, CA 91301 
                      Facsimile No.: (818) 707-1627
                      Attn:  Mr.  Walter Kornbluh

        All such notices, requests and other communications will (I) if
delivered personally to the address as provided in this Section, be deemed given
upon delivery, (II) if delivered by facsimile transmission to the facsimile
number as provided in this Section, be deemed given upon receipt, and (III) if
delivered by mail in the manner described above to the address as provided in
this Section, be deemed given upon receipt (in each case regardless of whether
such notice, request or other communication is to be delivered pursuant to this
Section). Any party from time to time may change its address, facsimile number
or other information for the purpose of notices to that party by giving notice
specifying such change to the other party hereto.

        2.2     Entire Agreement. This Agreement and the Business Contracts
                supersede all prior discussions and agreements between the
                parties with respect to the subject matter hereof and thereof
                and contains the sole and entire agreement between the parties
                hereto with respect to the subject matter hereof and thereof.

        2.3     Counterparts. This Agreement may be executed in any number of
                counterparts, each of which will be deemed an original, but all
                of which together will constitute one and the same instrument.



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        IN WITNESS WHEREOF, this Agreement has been duly executed and delivered
by the duly authorized officer of each party as of the date first above written.

                                       INTERSCIENCE COMPUTER CORPORATION
                                       a California corporation, Seller
     
                                       By:____________________________________
                                       Name:
                                       Title:




                                       CSI, COMPUTER SPECIALISTS INC.,
                                       a Delaware corporation, Purchaser

                                       By:____________________________________
                                       Name:
                                       Title: