USCS INTERNATIONAL INC
POS AM, 1996-07-08
COMPUTER PROGRAMMING SERVICES
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<PAGE>
   
      AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON JULY 8, 1996
    
                                                       REGISTRATION NO. 333-3842
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                            ------------------------
   
                         POST-EFFECTIVE AMENDMENT NO. 1
                                       TO
    
                                    FORM S-1
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933
                            ------------------------
                            USCS INTERNATIONAL, INC.
                (Name of registrant as specified in its charter)
 
<TABLE>
<S>                              <C>                            <C>
           DELAWARE                          7371                  94-1727009
  (State or jurisdiction of      (Primary Standard Industrial   (I.R.S. Employer
incorporation or organization)   Classification Code Number)     Identification
                                                                      No.)
</TABLE>
 
                            2969 PROSPECT PARK DRIVE
                         RANCHO CORDOVA, CA 95670-6148
                                 (916) 636-4500
         (Address and telephone number of principal executive offices)
 
                             JAMES C. CASTLE, PH.D.
                            CHIEF EXECUTIVE OFFICER
                            USCS INTERNATIONAL, INC.
                            2969 PROSPECT PARK DRIVE
                         RANCHO CORDOVA, CA 95670-6184
                                 (916) 636-4500
           (Name, address and telephone number, of agent for service)
                            ------------------------
                                   COPIES TO:
 
<TABLE>
<S>                                       <C>
        GILLES S. ATTIA, ESQ.                    MARK A. BERTELSEN, ESQ.
         KEVIN A. COYLE, ESQ.                    ANN YVONNE WALKER, ESQ.
         Graham & James, LLP                 Wilson Sonsini Goodrich & Rosati
           400 Capitol Mall                      Professional Corporation
              Suite 2400                            650 Page Mill Road
      Sacramento, CA 95814-4411                  Palo Alto, CA 94304-1050
            (916) 558-6700                            (415) 493-9300
</TABLE>
 
                            ------------------------
        APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC:
   AS SOON AS PRACTICABLE ON OR AFTER THE EFFECTIVE DATE OF THIS REGISTRATION
                                   STATEMENT.
                            ------------------------
    If  any of the securities being registered on this Form are to be offered on
a delayed or continuous basis pursuant to  Rule 415 under the Securities Act  of
1933, check the following box. / /
    If  this Form  is filed  to register  additional securities  for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list  the  Securities  Act  registration statement  number  of  the  earlier
effective registration statement for the same offering. / /
    If  this Form  is a post-effective  amendment filed pursuant  to Rule 462(c)
under the Securities Act,  check the following box  and list the Securities  Act
registration  statement number  of the earlier  effective registration statement
for the same offering. / /
    If delivery of the prospectus is expected  to be made pursuant to Rule  434,
please check the following box. / /
                            ------------------------
                        CALCULATION OF REGISTRATION FEE
 
<TABLE>
<CAPTION>
                                                    PROPOSED
                                                     MAXIMUM         PROPOSED
        TITLE OF                                    OFFERING          MAXIMUM         AMOUNT OF
    SECURITIES TO BE           AMOUNT BEING         PRICE PER        AGGREGATE      REGISTRATION
       REGISTERED               REGISTERED          SHARE (1)     OFFERING PRICE       FEE (2)
<S>                        <C>                   <C>              <C>              <C>
Common Stock, Par Value
 $.05 per share..........    5,520,000 Shares        $17.00         $93,840,000        $32,359
Rights to Purchase Series
 A Preferred Stock, par
 value $.05 per share....    5,520,000 Rights         $0.00            $0.00            $0.00
<FN>
(1)  Estimated  solely  for  the  purpose  of  calculating  the  amount  of  the
     registration fee.
(2)  Previously paid.
</TABLE>
 
                            ------------------------
   
    THE REGISTRANT  HEREBY  AMENDS  THIS REGISTRATION  STATEMENT  FOR  THE  SOLE
PURPOSE  OF THE  ELECTRONIC FILING  OF EXHIBITS  WHICH WERE  PREVIOUSLY FILED IN
PAPER FORMAT  PURSUANT  TO  WHICH  THE COMPANY  RECEIVED  A  TEMPORARY  HARDSHIP
EXEMPTION  PURSUANT  TO  RULE  201  OF  REGULATION  S-T.  THE  PORTIONS  OF  THE
REGISTRATION STATEMENT OMITTED FROM THIS AMENDMENT AND PREVIOUSLY FILED WITH THE
SECURITIES AND EXCHANGE COMMISSION ARE INCORPORATED BY THIS REFERENCE.
    
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
   
PART II
    
 
   
    THE  PORTIONS OF  THE REGISTRATION  STATEMENT OMITTED  FROM PART  II IN THIS
AMENDMENT AND PREVIOUSLY FILED WITH  THE SECURITIES AND EXCHANGE COMMISSION  ARE
INCORPORATED BY THIS REFERENCE.
    
 
ITEM 16.  EXHIBITS AND FINANCIAL STATEMENT SCHEDULES
 
    (a) Exhibits
 
   
<TABLE>
<CAPTION>
 EXHIBIT NO.
- -------------
<C>            <S>
       1.1     Form of Purchase Agreement.*
       2.1     Agreement  and Plan of  Merger dated April 18,  1996 among USCS  International, Inc., a Delaware
                corporation, and U.S. Computer Services, a California corporation.*
       2.2     Reference exhibits 10.37, 10.38, 10.39 & 10.40.
       3.1     First Amended and Restated Certificate of Incorporation of USCS International, Inc.*
       3.2     Bylaws of the Company.*
       3.3     Certificate of Designation of Rights, Preferences and Privileges of Series A Preferred Stock.*
       4.1     Reference Exhibit 3.1.
       4.2     Shareholder Rights  Agreement dated  December  30, 1988  among  U.S. Computer  Services,  Westar
                Capital and Enterprise Partners.
       4.3     Stockholder Rights Plan.*
       5.1     Opinion  of Graham &  James LLP, Counsel to  the Registrant, as to  legality of securities being
                registered.*
      10.1     1988 Incentive Stock Option Plan.*
      10.2     The Company's Employee Stock Ownership  Plan ("ESOP") as amended and  restated as of January  1,
                1991,  and as amended effective January 1, 1991, January 1, 1992, January 1, 1993, February 19,
                1993, January 1, 1994, December 31, 1994, January 1, 1995, March 31, 1995, January 1, 1996  and
                March 21, 1996.*
      10.3     1993 Incentive Stock Option Plan.*
      10.4     1996 Stock Option Plan.*
      10.5     1996 Directors' Stock Option Plan.*
      10.6     Employee Stock Purchase Plan.*
      10.7     Agreement  pursuant to Rule  601(b)(4)(iii)(A) to file  Trust Indenture dated  as of December 1,
                1987 between the Company and Sun Bank, as Trustee.*
      10.8     Agreement pursuant  to  Rule 601(b)(4)(iii)(A)  to  file  Reimbursement Agreement  dated  as  of
                December 1, 1987 between the Company and Sanwa Bank of California.*
      10.9     Agreement  pursuant to Rule 601(b)(4)(iii)(A) to file Trust  Indenture dated as of June 30, 1989
                between the Company and Sun Bank, as Trustee.*
      10.10    Agreement pursuant to Rule  601(b)(4)(iii)(A) to file Reimbursement  Agreement dated as of  June
                30, 1989 between the Company and Sanwa Bank of California.*
      10.11    Note  Agreement dated as of  February 19, 1992 (re: $22,500,000  7.91% Senior Notes due February
                19, 1999) between the  Company and Great-West  Life and Annuity  Insurance Company and  Phoenix
                Mutual Life Insurance Company and as amended as of February 17, 1993, April 30, 1993, August 1,
                1994, March 31, 1995 and February 15, 1996.*
      10.12    Credit  Agreement dated as of February  15, 1996 among IBS, Nationsbank  of Texas and the Lender
                Parties named therein.*
      10.13    Credit Agreement dated as of February 15, 1996  among The Company, Nationsbank of Texas and  the
                Lender Parties named therein.*
      10.14    Form of Standard On/Line Operating and License Agreement.*
</TABLE>
    
 
                                      II-2
<PAGE>
   
<TABLE>
<CAPTION>
 EXHIBIT NO.
- -------------
<C>            <S>
      10.15    Form of Standard Equipment Maintenance Agreement.*
      10.16    Form of Master Lease, Lease Request and Certificate of Acceptance.*
      10.17    Form of Standard Agreement for the Sale and Installation of Equipment.*
      10.18    Form of Standard Statement Production Services Agreement.*
      10.19    Strategic  Business  Agreement dated  January  19, 1992  between  the Company  and International
                Business Machines Corporation  and Addendum Number  One to Strategic  Business Agreement  dated
                June 4, 1993 between the Company and International Business Machines Corporation.+
      10.20    Business Alliance Program Agreement between Oracle Corporation and CableData.+
      10.21    Development  Agreement  dated  December  5,  1994  between  the  Company  and  Tandem  Computers
                Incorporated.+
      10.22    Porting Agreement dated January 25, 1996 between CableData and Hewlett-Packard Company.+
      10.23    [Intentionally omitted]
      10.24    On/Line Operating and License Agreement dated June 7, 1996 between CableData, Inc. and TCI Cable
                Management Corporation.+
      10.25    Master Lease Agreement  No. DO4347  dated as of  April 16,  1993 between the  Company and  First
                Equipment Company.*
      10.26    On/Line  Operating  and Licensing  Agreement dated  December  17, 1993  between the  Company dba
                CableData and Continental Cablevision.+
      10.27    Statement  Production  Services  Agreement  dated  August  20,  1993  between  the  Company  dba
                International Billing Services and Ameritech Corporation.* ***+
      10.28    Software  Development  Agreement  dated  December  27,  1995  between  CableData  and  BellSouth
                Interactive Media Services.+
      10.29    CableData's Intelecable-TM-  Operating and  License Agreement  dated December  27, 1995  between
                CableData. and BellSouth Interactive Media Services, Inc.+
      10.30    Software  License and  Service Agreement and  Network User  License Addendum dated  May 18, 1994
                between the Company and Oracle Corporation.+
      10.31    Statement Production Services Agreement dated October 9,  1990 between the Company and CBIS  and
                First  Addendum to  Statement Production  Services Agreement  dated July  17, 1991  between the
                Company and CBIS.+
      10.32    Tandem Alliance Agreement dated January 1, 1995, between Tandem and CableData.+
      10.33    Contract for Computer Software (Postalsoft Software  License Agreement) dated February 13,  1996
                between IBS and Postalsoft, Inc.+
      10.34    Employment Agreement dated August 10, 1992 between the Company and James C. Castle.*
      10.35    Employment Agreement dated June 29, 1995 with Michael McGrail.*
      10.36    Form of Severance Agreement.*
      10.37    Asset Acquisition Agreement dated March 31, 1995 by and between the Company and CableData.*
      10.38    Asset Acquisition Agreement dated March 31, 1995 by and between the Company and IBS.*
      10.39    Asset  Acquisition Agreement dated March  15, 1995 by and  between U.S. Computer Systems Leasing
                and CableLease, Inc.*
      10.40    Asset Acquisition Agreement dated March  15, 1995 by and  between U.S. Computer Systems  Leasing
                and RPA, Inc.*
</TABLE>
    
 
                                      II-3
<PAGE>
   
<TABLE>
<CAPTION>
 EXHIBIT NO.
- -------------
<C>            <S>
      10.41    Building  Lease for property located at 2969 Prospect  Park Drive between the Company and F.I.A.
                Profile Fund I dated January 19, 1994.*
      10.42    Alternate Mailing System Agreement dated March 28, 1996 between the United States Postal Service
                and IBS.+
      10.43    Alternate Mailing Systems Agreement dated April 18,  1996 between the United Postal Service  and
                International Billing Services, Inc.*
      10.44    Form of Directors' Indemnification Agreement.*
      10.45    Form of Custody and Escrow Agreement for Selling Stockholders.*
      10.46    Form of Selling Stockholders' Irrevocable Power of Attorney.*
      10.47    Amendment No. 11 to the ESOP.*
      21.1     List of Subsidiaries.*
      23.1     Consent of Graham & James LLP (included in Exhibit 5.1).
      23.2     Consent of Price Waterhouse LLP.*
      24.1     Powers of Attorney.*
      27.1     Financial Data Schedule.*
</TABLE>
    
 
- ------------------------
   
  * Indicates Exhibit previously filed.
    
 
***  Indicates  Exhibit  was filed  in  paper  format pursuant  to  a continuing
    hardship exemption under Rule 202 of Regulation S-T.
 
  + Portions omitted pursuant to  a request for confidential treatment  pursuant
    to Rule 406 of the Securities Act.
 
    (b) Financial Statement Schedules
 
   
      None.
    
 
                                      II-4
<PAGE>
                                   SIGNATURES
 
   
    Pursuant  to the requirements of the  Securities Act of 1933, the registrant
has duly caused this registration  statement to be signed  on its behalf by  the
undersigned,  thereunto duly authorized in the  City of Rancho Cordova, State of
California, on the 8th day of July, 1996.
    
 
                                          USCS INTERNATIONAL, INC.
 
                                          By       /S/ DOUGLAS L. SHURTLEFF
 
                                            ------------------------------------
                                             Douglas L. Shurtleff,
                                             Chief Financial Officer
 
    Pursuant to the requirements of the  Securities Act of 1933, this  Amendment
to  Registration  Statement has  been  signed by  the  following persons  in the
capacities and on the dates indicated.
 
   
<TABLE>
<S>                                            <C>
Dated: July 8, 1996                            *
                                               -------------------------------------------
                                               James C. Castle
                                               Chief Executive Officer and Chairman of the
                                               Board of Directors (Principal Executive
                                               Officer)
Dated: July 8, 1996                            *
                                               -------------------------------------------
                                               George L. Argyros, Sr.
                                               Director
Dated: July 8, 1996                            *
                                               -------------------------------------------
                                               George M. Crandell, Jr.
                                               Director
Dated: July 8, 1996                            *
                                               -------------------------------------------
                                               Charles D. Martin
                                               Director
 
*By         /S/ DOUGLAS L. SHURTLEFF
- -------------------------------------------
     Douglas L. Shurtleff
     ATTORNEY-IN-FACT
</TABLE>
    
 
                                      II-5
<PAGE>
   
<TABLE>
<S>                                            <C>
Dated: July 8, 1996                            *
                                               -------------------------------------------
                                               Michael F. McGrail
                                               Director
Dated: July 8, 1996                            *
                                               -------------------------------------------
                                               Larry W. Wangberg
                                               Director
Dated: July 8, 1996                            /S/ DOUGLAS L. SHURTLEFF
                                               -------------------------------------------
                                               Douglas L. Shurtleff
                                               Senior Vice-President of Finance and Chief
                                               Financial Officer (Principal Financial
                                               Officer)
Dated: July 8, 1996                            /S/ ARTHUR O. HAWKINS
                                               -------------------------------------------
                                               Arthur O. Hawkins
                                               Vice-President and Treasurer (Principal
                                               Accounting Officer)
 
*By         /S/ DOUGLAS L. SHURTLEFF
- -------------------------------------------
     Douglas L. Shurtleff
     ATTORNEY-IN-FACT
</TABLE>
    
 
                                      II-6
<PAGE>
                                 EXHIBIT INDEX
 
   
<TABLE>
<CAPTION>
  EXHIBIT
  NUMBER                                                   DESCRIPTION
- -----------  --------------------------------------------------------------------------------------------------------
<C>          <S>
       1.1   Form of Purchase Agreement.
       2.1   Agreement and Plan of Merger dated April 18, 1996 among USCS International, Inc., a Delaware
              corporation, and U.S. Computer Services, a California corporation.*
       2.2   Reference exhibits 10.37, 10.38, 10.39 & 10.40.
       3.1   First Amended and Restated Certificate of Incorporation of USCS International, Inc.*
       3.2   Bylaws of the Company.*
       3.3   Certificate of Designation of Rights, Preferences and Privileges of Series A Preferred Stock.*
       4.1   Reference Exhibit 3.1.
       4.2   Shareholder Rights Agreement dated December 30, 1988 among U.S. Computer Services, Westar Capital and
              Enterprise Partners.
       4.3   Stockholder Rights Plan.*
       5.1   Opinion of Graham & James LLP, Counsel to the Registrant, as to legality of securities being
              registered.*
      10.1   1988 Incentive Stock Option Plan.*
      10.2   The Company's Employee Stock Ownership Plan ("ESOP") as amended and restated as of January 1, 1991, and
              as amended effective January 1, 1991, January 1, 1992, January 1, 1993, February 19, 1993, January 1,
              1994, December 31, 1994, January 1, 1995, March 31, 1995, January 1, 1996 and March 21, 1996.*
      10.3   1993 Incentive Stock Option Plan.*
      10.4   1996 Stock Option Plan.*
      10.5   1996 Directors' Stock Option Plan.*
      10.6   Employee Stock Purchase Plan.*
      10.7   Agreement pursuant to Rule 601(b)(4)(iii)(A) to file Trust Indenture dated as of December 1, 1987
              between the Company and Sun Bank, as Trustee.*
      10.8   Agreement pursuant to Rule 601(b)(4)(iii)(A) to file Reimbursement Agreement dated as of December 1,
              1987 between the Company and Sanwa Bank of California.*
      10.9   Agreement pursuant to Rule 601(b)(4)(iii)(A) to file Trust Indenture dated as of June 30, 1989 between
              the Company and Sun Bank, as Trustee.*
      10.10  Agreement pursuant to Rule 601(b)(4)(iii)(A) to file Reimbursement Agreement dated as of June 30, 1989
              between the Company and Sanwa Bank of California.*
      10.11  Note Agreement dated as of February 19, 1992 (re: $22,500,000 7.91% Senior Notes due February 19, 1999)
              between the Company and Great-West Life and Annuity Insurance Company and Phoenix Mutual Life Insurance
              Company and as amended as of February 17, 1993, April 30, 1993, August 1, 1994, March 31, 1995 and
              February 15, 1996.*
      10.12  Credit Agreement dated as of February 15, 1996 among IBS, Nationsbank of Texas and the Lender Parties
              named therein.*
      10.13  Credit Agreement dated as of February 15, 1996 among The Company, Nationsbank of Texas and the Lender
              Parties named therein.*
      10.14  Form of Standard On/Line Operating and License Agreement.*
      10.15  Form of Standard Equipment Maintenance Agreement.*
      10.16  Form of Master Lease, Lease Request and Certificate of Acceptance.*
      10.17  Form of Standard Agreement for the Sale and Installation of Equipment.*
      10.18  Form of Standard Statement Production Services Agreement.*
      10.19  Strategic Business Agreement dated January 19, 1992 between the Company and International Business
              Machines Corporation and Addendum Number One to Strategic Business Agreement dated June 4, 1993 between
              the Company and International Business Machines Corporation.+
</TABLE>
    
<PAGE>
   
<TABLE>
<CAPTION>
  EXHIBIT
  NUMBER                                                   DESCRIPTION
- -----------  --------------------------------------------------------------------------------------------------------
      10.20  Business Alliance Program Agreement between Oracle Corporation and CableData.+
<C>          <S>
      10.21  Development Agreement dated December 5, 1994 between the Company and Tandem Computers Incorporated.+
      10.22  Porting Agreement dated January 25, 1996 between CableData and Hewlett-Packard Company.+
      10.23  [Intentionally omitted]
      10.24  On/Line Operating and License Agreement dated June 7, 1996 between CableData, Inc. and TCI Cable
              Management Corporation.+
      10.25  Master Lease Agreement No. DO4347 dated as of April 16, 1993 between the Company and First Equipment
              Company.*
      10.26  On/Line Operating and Licensing Agreement dated December 17, 1993 between the Company dba CableData and
              Continental Cablevision.+
      10.27  Statement Production Services Agreement dated August 20, 1993 between the Company dba International
              Billing Services and Ameritech Corporation.* ***+
      10.28  Software Development Agreement dated December 27, 1995 between CableData and BellSouth Interactive Media
              Services.+
      10.29  CableData's Intelecable-TM- Operating and License Agreement dated December 27, 1995 between CableData.
              and BellSouth Interactive Media Services, Inc.+
      10.30  Software License and Service Agreement and Network User License Addendum dated May 18, 1994 between the
              Company and Oracle Corporation.+
      10.31  Statement Production Services Agreement dated October 9, 1990 between the Company and CBIS and First
              Addendum to Statement Production Services Agreement dated July 17, 1991 between the Company and CBIS.+
      10.32  Tandem Alliance Agreement dated January 1, 1995, between Tandem and CableData.+
      10.33  Contract for Computer Software (Postalsoft Software License Agreement) dated February 13, 1996 between
              IBS and Postalsoft, Inc.+
      10.34  Employment Agreement dated August 10, 1992 between the Company and James C. Castle.*
      10.35  Employment Agreement dated June 29, 1995 with Michael McGrail.*
      10.36  Form of Severance Agreement.*
      10.37  Asset Acquisition Agreement dated March 31, 1995 by and between the Company and CableData.*
      10.38  Asset Acquisition Agreement dated March 31, 1995 by and between the Company and IBS.*
      10.39  Asset Acquisition Agreement dated March 15, 1995 by and between U.S. Computer Systems Leasing and
              CableLease, Inc.*
      10.40  Asset Acquisition Agreement dated March 15, 1995 by and between U.S. Computer Systems Leasing and RPA,
              Inc.*
      10.41  Building Lease for property located at 2969 Prospect Park Drive between the Company and F.I.A. Profile
              Fund I dated January 19, 1994.*
      10.42  Alternate Mailing System Agreement dated March 28, 1996 between the United States Postal Service and
              IBS.+
      10.43  Alternate Mailing Systems Agreement dated April 18, 1996 between the United Postal Service and
              International Billing Services, Inc.*
      10.44  Form of Directors' Indemnification Agreement.*
      10.45  Form of Custody and Escrow Agreement for Selling Stockholders.*
      10.46  Form of Selling Stockholders' Irrevocable Power of Attorney.*
      10.47  Amendment No. 11 to the ESOP.*
      21.1   List of Subsidiaries.*
      23.1   Consent of Graham & James LLP (included in Exhibit 5.1).
      23.2   Consent of Price Waterhouse LLP.*
</TABLE>
    
<PAGE>
<TABLE>
<CAPTION>
  EXHIBIT
  NUMBER                                                   DESCRIPTION
- -----------  --------------------------------------------------------------------------------------------------------
      24.1   Powers of Attorney.*
<C>          <S>
      27.1   Financial Data Schedule.*
</TABLE>
 
- ------------------------
   
  * Indicates Exhibit previously filed.
    
 
***  Indicates  Exhibit  was filed  in  paper  format pursuant  to  a continuing
    hardship exemption under Rule 202 of Regulation S-T.
 
  + Portions omitted pursuant to  a request for confidential treatment  pursuant
    to Rule 406 of the Securities Act.

<PAGE>


                                                              EXHIBIT 4.2


<PAGE>


                          SHAREHOLDER RIGHTS AGREEMENT

     THIS SHAREHOLDER RIGHTS AGREEMENT (the "Agreement") is entered into as 
of December 30, 1988, by and among U.S. Computer Systems, a California 
corporation (dba "Cable Data") (the "Company"), Westar Capital, a California 
limited partnership and Enterprise Partners, a California limited partnership 
(Westar Capital and Enterprise Partners are hereinafter collectively referred 
to as "Westar" for purposes of this Agreement) and solely for the purposes of 
paragraphs 2.1(c), 2.1(d) and applicable portions of Section 7, Gerald S. 
Knapp and Susan A. Mathews as Trustees of the Company's Fixed Contribution 
Employee Stock Ownership Plan (the "Fixed Contribution Plan") and the 
Company's Discretionary Contribution Employee Stock Ownership Plan (the 
"Discretionary Contribution Plan" and, together with the Fixed Contribution 
Plan, the "Plans").

                                    RECITALS

     A.   Westar is proposing to purchase shares of the Company's Common 
Stock from certain shareholders of the Company pursuant to a stock purchase 
agreement of even date herewith.

     B.   Westar and the Company desire to set forth certain rights to be 
granted to and covenants to be made with Westar in connection with its 
purchase of such shares and with respect to its status as a shareholder 
of the Company.

     C.   Concurrently with the execution of this Agreement, the  Company, 
Westar and the Estate of Robert J. Mathews (the "Estate") are entering into a 
Shareholders' Agreement providing for certain agreements regarding the 
transfer and voting of securities of the Company (the "Shareholders' 
Agreement").


                                    AGREEMENT

     NOW, THEREFORE, in consideration of the mutual promises, 
representations, warranties, covenants, and conditions set forth in this 
Agreement, the parties mutually agree as follows:


                                         1


<PAGE>


                                     SECTION 1

                                      PAYMENT

     1.1  PAYMENT BY WESTAR.  On the Effective Date (as defined below), 
Westar shall deliver to the Company a certified check in the amount of 
Sixty-Three Thousand Five Hundred Ninety Dollars ($63,590), payable to the 
order of the Company, in consideration for the rights granted to Westar, and 
the obligations incurred by the Company, pursuant to this Agreement.  The 
"Effective Date" shall mean the date which is the later to occur of (i) the 
date on which Westar consummates the purchase from Susan J. Teasley of all of 
the shares of the Company's Common Stock held by her for a purchase price not 
to exceed $93 per share and (ii) the date on which the parties to that 
certain litigation SUSAN J. TEASLEY V. SUSAN A. MATHEWS ET AL. (Case No. 
330791) and SUSAN J. TEASLEY V. SUSAN A. MATHEWS (Case No. 355005) enter into 
a settlement agreement or agreements providing for a full mutual release of 
all claims and a contribution by the Company to such settlement of not more 
than Four Hundred Twenty-Two Thousand Five Hundred Dollars ($422,500); 
provided, however, that if the Effective Date has not occurred on or before 
January 13, 1989, this agreement shall be null and void.

                                    SECTION 2

                            COVENANTS OF THE COMPANY

     2.1  EMPLOYEE STOCK OWNERSHIP PLANS.

          (a)  Subject to employee stock ownership plan qualification 
requirements, including but not limited to Section 4975(e)(7) of the Internal 
Revenue Code, the Company shall not without the written consent of Westar 
contribute or sell any shares of capital stock to the Plans other than shares 
of its nonvoting Common Stock for allocation to the accounts of employee 
participants in the Plans.

          (b)  The Company shall not without the written Consent of Westar 
contribute or sell to the Plans more than 5,000 shares of its nonvoting 
Common Stock during any calendar year, and in no event shall the Company 
without the written consent of Westar contribute or sell to the Plans during 
any calendar year shares having an aggregate value, as determined pursuant to 
the provisions of Section 3.05 of the Fixed Contribution Plan, in excess of 
fifty percent (50%) of the contributions required to be made by the Company 
to the Fixed Contribution Plan (or which would have been required to have 
been made had such Plan remained in effect) during such calendar year 
pursuant to the provisions of Section 3.01 of such Plan.


                                        2
<PAGE>


          (c)  Neither the Fixed Contribution Plan nor the Discretionary 
Contribution Plan shall acquire or purchase any shares of the Company's 
capital stock from the Company or any other person or entity without the 
written consent of Westar except for (i) purchases of shares from Plan 
participants pursuant to the distribution and repurchase provisions of each 
Plan, (ii) acquisitions of shares pursuant to contributions or sales by the 
Company as permitted by subsection (b) above, and (iii) purchases of shares 
from other shareholders of the Company; provided, however, that in no event 
shall the Plans collectively purchase from any one shareholder during any 
calendar year shares having an aggregate value in excess of $100,000; and 
provided further that in no event shall the Plans collectively acquire or 
purchase more than 5,000 shares in the aggregate during any calendar year 
(exclusive of purchases described in clause (i) above) pursuant to the 
provisions of this Section 2.1.

          (d)  Subject to compliance with applicable law, the Company and the 
Plans shall use their best efforts to cause the consolidation of the Plans 
into a single discretionary contribution stock ownership plan for the benefit 
of the Company's employees by June 30, 1989.

     2.2  RECAPITALIZATIONS.  The Company shall not engage in any 
recapitalization, stock dividend or stock split, or other transaction in 
respect of its capital stock which would have the effect of converting any of 
its issued and outstanding shares of nonvoting Common Stock to voting Common 
Stock or which would alter, change or otherwise affect the voting rights of 
its nonvoting or voting Common Stock.

     2.3  REPURCHASE OF SHARES.  The Company shall not purchase any shares of 
its capital stock from any shareholder of the Company except as expressly 
provided in Sections 2.1(c), 3 and 5.2 hereof and except as otherwise 
expressly provided in that certain Buy-Sell Agreement dated April 26, 1988 
between Susan A. Mathews and the Company (as amended as contemplated in the 
Shareholders' Agreement).

     2.4  BOARD OF DIRECTORS; REINCORPORATION.  Upon the Effective Date of 
this Agreement, the Company shall take corporate action to increase the 
number of directors of the Company to seven (7) and shall immediately name 
George Crandell as a director to fill one of the vacancies created thereby. 
The Company shall not take any corporate action to change the authorized 
number of directors of the Company to a number other than seven (7) or change 
the Company's state of incorporation without the written consent of Westar.


                                        3


<PAGE>


                                    SECTION 3

                                 SALE PROVISIONS

     3.1  PURCHASE REQUEST.  The Company hereby grants to Westar the right 
and option to request that the Company purchase from time to time after the 
sixth (6th) anniversary of the Effective Date (hereinafter referred to as the 
"Request") all or any portion of the shares of capital stock of the Company 
which Westar then holds (the "Shares") at a purchase price per Share equal to 
the greater of (i) the fair market value per share of the Company's Common 
Stock in the Plans as determined by the last independent appraisal performed 
for the Plans as of the year end of the year immediately preceding the year 
during which the Shares are purchased by the Company pursuant to Section 3.2 
below for purposes of valuing the Company's Common Stock in connection with 
the administration of the Company's Plans, or, if no such appraisal has been 
performed within the twelve (12) month period immediately preceding the date 
on which the Shares are purchased by the Company, the fair market value per 
share of the Company's Common Stock as determined by an independent appraisal 
performed by the appraiser that had performed the then most recent appraisal 
for the Plans, the cost of which shall be borne by the Company, or (ii) a 
price per share equal to that price which would yield to Westar an annual 
compounded rate of return on its investment in the Shares, based on the cost 
of such investment to Westar (which cost shall include the amount paid to the 
Company pursuant to Section 1.1 hereof and the amount paid to the Estate 
pursuant to Section 1.1 of the Shareholders' Agreement) and the period for 
which the Shares are held, of twenty percent (20%). Such price shall be 
determined as of the date of the closing of the purchase pursuant to such 
Request (hereinafter the "Purchase Price").

     3.2  REQUEST AND PURCHASE OF SHARES.

          (a)  Subject to the provisions of subsection (b)  below, Westar may 
request the purchase of all or any portion of the Shares and, the Company 
shall have the right but not an obligation to purchase from Westar, all of 
the Shares as to which the Request is exercised. Westar's Request shall 
commence upon written notice from Westar to the Company specifying the number 
of Shares as to which the Request is exercised. If the Company accepts the 
Request, the Company shall, within one hundred eighty (180) days of the 
notice from Westar of its Request pay to Westar, by certified check payable 
to the order of Westar, the aggregate Purchase Price of the Shares as to 
which the Request has been exercised as determined pursuant to Section 3.1 
above, subject to adjustment as provided in Section 3.3 below, plus all 
accumulated dividends, if any, for each Share and


                                        4

<PAGE>


purchased by the Company.  In exchange therefor, Westar shall deliver to the 
Company a stock certificate or certificates representing the total number of 
Shares being purchased, duly endorsed in blank by Westar or having attached 
thereto a stock power duly executed by Westar in proper form for transfer.

          (b)  In the event that any payment to be made by the Company is 
prohibited by provisions of any applicable law, then such payment shall be 
immediately made by the Company at the  next earliest time, and to the extent 
possible, when compliance with said law may be effected, and the Company 
agrees that it will use its best efforts to expedite and effectuate to the 
extent possible such compliance.

          (c)  The Company may, in its sole discretion, assign its right to 
purchase any Shares as to which the Request has been exercised to any person 
or entity selected by the Company's Board of Directors, including, without 
limitation, the Plans or one or more other shareholders of the Company. 
Notwithstanding the provisions of Section 2.1 above, the Plans may accept 
such assignment and purchase such shares.

     3.3  ADJUSTMENT OF PURCHASE PRICE.  In the event of any stock dividend, 
stock split, combination of shares, subdivision or other recapitalization of 
the Shares between the time any Request is exercised and the time the Shares 
as to which such Request has been exercised are purchased by the Company, 
then the number of Shares and the purchase price per Share as to which such 
Request has been exercised shall be proportionately adjusted to take into 
account each of any such events, so that Westar shall be entitled to sell 
such number of Shares and to receive such purchase price per Share, as it 
would have been entitled to do or receive had such event occurred immediately 
prior to the time such Request was exercised.

     3.4  MISCELLANEOUS.  The right to Request shall terminate, whether or 
not it has then become exercisable, upon the earlier to occur of (i) the 
first closing of the first firmly underwritten public offering by the Company 
of its Common Stock, pursuant to registration statement filed with, and 
declared effective by, the Securities and Exchange Commission (the "SEC") 
under the Securities Act of 1933 as amended (the "Act"), covering the offer 
and sale of Common Stock to the public at a per share price (prior to 
underwriter commissions and expenses) of at least $275 (as adjusted for any 
combinations, consolidations, stock splits or stock dividends with the 
respect to such stock) and at an aggregate offering price of not less than 
$10,000,000 or (ii) the closing of a public offering of the Company's Common 
Stock


                                        5

<PAGE>


pursuant to the exercise by Westar of its demand registration right under
Section 4.2 hereof.

                                    SECTION 4

                               REGISTRATION RIGHTS

     4.1  DEFINITIONS.  For purposes of this Section 4:

          (a)  The term "register", "registered," and "registration" refer to 
a registration effected by preparing and filing a registration statement or 
similar document in compliance with the Act, and the declaration or ordering 
of effectiveness of such registration statement or document;

          (b)  The term "Registrable Securities" means all shares of the 
Company's Common Stock held by Westar from time to time.

     4.2  REQUEST FOR REGISTRATION.

          (a)  In the event the Company (or its assignee as provided in
Section 3.2(c) does not purchase all of the Shares as to which a Request has
been exercised pursuant to the provisions of Section 3 hereof within the 180 day
period set forth in Section 3.2, Westar may request in writing that the Company
file a registration statement under the Act covering the registration of all or
any portion of the Registrable Securities then outstanding (or a lesser percent
if the anticipated aggregate offering price, net of underwriting discounts and
commissions, would exceed $5,000,000).  If such Request is made by Westar,
the Company shall use its best efforts to effect the registration under the Act
of all Registrable Securities which Westar requests to be registered and use its
best efforts to effect such registration within one hundred eighty (180) days of
the receipt of such Request.

          (b)  If Westar intends to distribute the Registrable Securities 
covered by its request by means of an underwriting, it shall so advise the 
Company as a part of its request made pursuant to this Section 4.2.  The 
underwriter will be selected by Westar and shall be reasonably acceptable to 
the Company.

          (c)  The Company is obligated to effect only one (1) such 
registration pursuant to this Section 4.2.

          (d)  If the underwriter has not limited the number of Registrable 
Securities to be underwritten, the Company may include its securities for its 
own account in such registration and underwriting if the underwriter so 
agrees and if the number of Registrable Securities which would otherwise


                                        6

<PAGE>


have been included in such registration and underwriting will not thereby be 
limited.

     4.3  COMPANY REGISTRATION.  If the Company proposes to register 
(including for this purpose a registration effected by the Company for 
shareholders other than Westar) any of its stock or other securities under 
the Act in connection with the public offering of such securities solely for 
cash (other than a registration relating solely to the sale of securities to 
participants in a Company stock plan, or a registration on any form which 
does not include substantially the same information as would be required to 
be included in a registration statement covering the sale of the Registrable 
Securities), the Company shall, at such time, promptly give Westar written 
notice of such registration. Upon the written request of Westar given within 
twenty (20) days after mailing of such notice by the Company the Company 
shall, subject to the provisions of Section 4.8, cause to be registered under 
the Act all of the Registrable Securities that Westar has requested to be 
registered at the same time as its stock is registered.

     4.4  OBLIGATIONS TO THE COMPANY.  Whenever required under this Section 4 
to effect the registration of any Registrable Securities, the Company shall, 
as expeditiously as reasonably possible:

          (a)  Prepare and file with the SEC a registration statement with 
respect to such Registrable Securities and use its best efforts (i) to cause 
such registration statement to become effective, and, (ii) upon the request 
of Westar, keep such registration statement effective for up to one hundred 
twenty (120) days.

          (b)  Prepare and file with the SEC such amendments and supplements 
to such registration statement and the prospectus used in connection with 
such registration statement as may be reasonably necessary to comply with the 
provisions of the Act with respect to the disposition of all securities 
covered by such registration statement.

          (c)  Furnish to Westar such numbers of copies of a prospectus, 
including a preliminary prospectus, in conformity with the requirements of 
the Act, and such other documents as Westar may reasonably request in order 
to facilitate the disposition of Registrable Securities.

          (d)  Use its best efforts to register and qualify the securities 
covered by such registration statement under such other securities or Blue 
Sky laws of such jurisdictions as shall be reasonably requested by Westar 
(not to exceed twenty (20) states unless agreed to by the Company),


                                        7

<PAGE>


provided that the Company shall not be required in connection therewith or as 
a condition thereto to qualify to do business or to file a general consent to 
service of process in any such states or jurisdictions.

          (e)  In the event of any underwritten public offering, enter into 
and perform its obligations under an underwriting agreement, in usual and 
customary form, with the managing underwriter of such offering.

          (f)  Notify Westar at any time when a prospectus relating thereto 
is required to be delivered under the Act of the happening of any event as a 
result of which the prospectus included in such registration statement, as 
then in effect, includes an untrue statement of a material fact or omits to 
state a material fact required to be stated therein or necessary to make the 
statements therein not misleading in the light of the circumstances then 
existing.

     4.5  FURNISH INFORMATION.  It shall be a condition precedent to the 
obligations of the Company to take any action pursuant to this Section 4 with 
respect to the Registrable Securities that Westar shall furnish to the 
Company such information regarding itself, the Registrable Securities held by 
it, and the intended method of disposition of such securities as shall be 
required to effect the registration of Westar's Registrable Securities.

     4.6  EXPENSES OF DEMAND REGISTRATION.  All expenses incurred in 
connection with registrations, filings or qualifications pursuant to 
Section 4.2, including (without limitation) all registration, filing and 
qualification fees, printers' and accounting fees, fees and disbursements of 
counsel for the Company, and the reasonable fees and disbursements of one 
counsel for Westar and any other selling shareholders participating in such 
registration shall be borne by Westar; provided however that if the Company, 
or any other shareholders of the Company, participate in such registration, 
such costs shall be borne by Westar, the Company, and any other shareholders 
in proportion to the number of securities sought to be included in such 
registration by Westar, the Company and such other selling shareholders.

     4.7  EXPENSES OF COMPANY REGISTRATION.  The Company shall bear and pay
all expenses incurred in connection with any registration, filing or
qualification of Registrable Securities with respect to the registrations
pursuant to Section 4.3 for Westar, including (without limitation) all
registration, filing, and qualification fees, printers and accounting fees
relating or apportionable thereto but excluding the fees and disbursements of
counsel for Westar and


                                        8

<PAGE>


any other selling shareholders participating in such registration, and also 
excluding underwriting discounts and commissions relating to Registrable 
Securities.

     4.8  UNDERWRITING REQUIREMENTS.  In connection with any offering
involving an underwriting of shares of the Company's capital stock, the Company
shall not be required under Section 4.3 to include any of Westar's Registrable
Securities in such underwriting unless Westar accepts the terms of the
underwriting as agreed upon between the Company and the underwriters selected by
it (or by other persons entitled to select the underwriters), and then only in
such quantity as the underwriters determine in their sole discretion will not
jeopardize the success of the offering by the Company. If the total amount of
securities, including Registrable Securities, requested by shareholders to be
included in such offering exceeds the amount of securities sold other than by
the Company that the underwriters determine in their sole discretion is
compatible with the success of the offering, then the Company shall be required
to include in the offering only that number of such securities, including
Registrable Securities, which the underwriters determine in their sole
discretion will not jeopardize the success of the offering (the securities so
included to be apportioned pro rata among the selling shareholders according to
the number of securities sought to be included therein by each selling
shareholder or in such other proportions as shall mutually be agreed to by such
selling shareholders) but in no event shall (i) the amount of Registrable
Securities included in the offering be reduced below thirty percent (30%) of the
total amount of Registrable Securities which Westar requested be included in
such offering, unless such offering is the initial public offering of the
Company's securities in which case Westar's Registrable Securities may be
excluded if the underwriters make the determination described above and no other
shareholder's securities are included or (ii) notwithstanding (i) above, any
shares being sold by Westar pursuant to its exercise of its demand registration
right granted in Section 4.2 be excluded from such offering.

     4.9  INDEMNIFICATION.  In the event any Registrable Securities are 
included in a registration statement under this Section 4:

          (a)  To the extent permitted by law, the Company will indemnify and 
hold harmless Westar, any underwriter (as defined in the Act) for Westar and 
each person, if any, who controls Westar or such underwriter within the 
meaning of the Act or the Securities Exchange Act of 1934,


                                        9

<PAGE>


as amended (the "1934 Act"), against any losses, claims, damages, or 
liabilities (joint or several) to which they may become subject under the 
Act, the 1934 Act or other federal or state law, insofar as such losses, 
claims, damages, or liabilities (or actions in respect thereof) arise out of 
or are based upon any of the following statements, omissions or violations 
(collectively a "Violation"): (i) any untrue statement or alleged untrue 
statement of a material fact contained in such registration statement, 
including any preliminary prospectus or final prospectus contained therein or 
any amendments or supplements thereto, (ii) the omission or alleged omission 
to state therein a material fact required to be stated therein, or necessary 
to make the statements therein not misleading, or (iii) any violation or 
alleged violation by the Company of the Act, the 1934 Act, any state 
securities law or any rule or regulation promulgated under the Act, the 1934 
Act or any state securities law; and the Company will pay to Westar or any 
such underwriter or controlling person, any legal or other expenses 
reasonably incurred by them in connection with investigating or defending any 
such loss, claim, damage, liability, or action; provided, however, that the 
indemnity agreement contained in this subsection 4.9(a) shall not apply to 
amounts paid in settlement of any such loss, claim, damage, liability, or 
action if such settlement is effected without the consent of the Company 
(which consent shall not be unreasonably withheld), nor shall the Company be 
liable in any such case for any such loss, claim, damage, liability, or 
action to the extent that it arises out of or is based upon a Violation which 
occurs in reliance upon and in conformity with written information furnished 
expressly for use in connection with such registration by Westar or any such 
underwriter or controlling person.

          (b)  To the extent permitted by law, Westar will indemnify and  
hold harmless the Company, each of its directors, each of  its officers who 
has signed the registration statement, each person, if any, who controls the 
Company within the meaning of the Act, any underwriter, any other shareholder 
selling securities in such registration statement and any controlling person 
of any such underwriter or other shareholder, against any losses, claims, 
damages, or liabilities (joint or several) to which any of the foregoing 
persons may become subject, under the Act, the 1934 Act or other federal or 
state law, insofar as such losses, claims, damages, or liabilities (or 
actions in respect thereto) arise out of or are based upon any Violation, in 
each case to the extent (and only to the extent) that such Violation occurs 
in reliance upon and in conformity with written information furnished by 
Westar as a selling shareholder expressly for use in connection with such 
registration or relating to actions or inactions required of Westar as a 
selling shareholder in connection with such registration; and Westar will pay 
any


                                       10

<PAGE>


legal or other expenses reasonably incurred by any person intended to be
indemnified pursuant to this subsection 4.9(b), in connection with
investigating or defending any such loss, claim, damage, liability, or
action; provided, however, that the indemnity agreement contained in this
subsection 4.9(b) shall not apply to amounts paid in settlement of any such
loss, claim, damage, liability or action if such settlement is effected
without the consent of Westar, which consent shall not be unreasonably
withheld.

          (c)  Promptly after receipt by an indemnified party under this 
Section 4.9 of notice of the commencement of any action (including any 
governmental action), such indemnified party will, if a claim in respect 
thereof is to be made against any indemnifying party under this Section 4.9, 
deliver to the indemnifying party a written notice of the commencement 
thereof and the indemnifying party shall have the right to participate in, 
and, to the extent the indemnifying party so desires, jointly with any other 
indemnifying party similarly noticed, to assume the defense thereof with 
counsel mutually satisfactory to the parties; provided, however, that an 
indemnified party (together with all other indemnified parties which may 
be represented without conflict by one counsel) shall have the right to 
retain one separate counsel, with the fees and expenses to be paid by the 
indemnifying party, if representation of such indemnified party by the 
counsel retained by the indemnifying party would be inappropriate due to 
actual or potential differing interests between such indemnified party and 
any other party represented by such counsel in such proceeding, The failure 
to deliver written notice to the indemnifying party within a reasonable time 
of the commencement of any such action, if prejudicial to its ability 
to defend such action, shall relieve such indemnifying party of any liability 
to the indemnified party under this Section 4,9, but the omission so to 
deliver written notice to the indemnifying party will not relieve it of any 
liability that it may have to any indemnified party otherwise than under this 
Section 4.9.

          (d)  The obligations of the Company and Westar under this Section 
4.9 shall survive the completion of any offering of Registrable Securities in 
a registration statement under this Section 4.

    4.10  REPORTS UNDER SECURITIES EXCHANGE ACT OF 1934. With a view to 
making available to Westar the benefits of Rule 144 promulgated under the Act 
and any other rule or regulation of the SEC that may at any time permit 
Westar to sell securities of the Company to the public without registration 
or pursuant to a registration on Form S-3, the Company agrees to:


                                      11

<PAGE>

          (a)  use its best efforts to make and keep public information  
available, as those terms are understood and defined in SEC  Rule 144, at all 
times after ninety (90) days after the effective date of the first 
registration statement filed by the Company for the offering of its 
securities to the general public;

          (b)  use its reasonable efforts, including the voluntary 
registration of its Common Stock under Section 12 of the 1934 Act, to enable 
Westar to utilize Form S-3 for the sale of its Registrable Securities, such 
action to be taken as soon as practicable after the end of the fiscal year in 
which the first registration statement filed by the Company for the offering 
of its securities to the general public is declare effective;

          (c)  file with the SEC in a timely manner all reports and other 
documents required of the Company under the Act and the 1934 Act; and

          (d)  furnish to Westar, so long as Westar owns any Registrable 
Securities, forthwith upon request (i) a written statement by the Company 
that it has complied with the reporting requirements of SEC Rule 144 (at any 
time.after ninety (90) days after the effective date of the first 
registration statement filed by the Company), the Act and the 1934 Act (at 
any time after it has become subject to such reporting requirements), or that 
it qualifies as a registrant whose securities may be resold pursuant to Form 
S-3 (at any time after it so qualifies), (ii) a copy of the most recent 
annual or quarterly report of the Company and such other reports and 
documents so filed by the Company, and (iii) such other information as may be 
reasonably requested in availing Westar of any rule or regulation of the SEC 
which permits the selling of any such securities without registration or 
pursuant to such form.

    4.11  LIMITATIONS ON SUBSEQUENT REGISTRATION RIGHTS.  From and after the 
date of this Agreement, the Company shall not, without the prior written 
consent of Westar, enter into any agreement with any holder or prospective 
holder of any securities of the Company which would allow such holder or 
prospective holder (a) to include such securities in any registration filed 
under Section 4.2 hereof, unless under the terms of such agreement, such 
holder or prospective holder may include such securities in any such 
registration only to the extent that the inclusion of his securities will not 
reduce the amount of Westar's Registrable Securities which is included or (b) 
to make a demand registration.


                                       12

<PAGE>


    4.12  MARKET STAND-OFF.  Westar hereby agrees that, if so requested by 
the Company and the underwriter (if any), Westar shall not sell or otherwise 
transfer any shares or other securities of the Company during the 90-day 
period following the effective date of a Registration Statement of the 
Company filed under the Act; provided that:

          (a)  such restriction shall only apply to the first Registration
Statement of the Company to become effective which include securities to be sold
on behalf of the Company to the public in an underwritten offering; and

          (b)  all officers, directors and holders of the Company's Common 
Stock on the effective date of such registration statement shall have agreed 
to the same limitation with respect to the Registration to which this Section 
4.12 is applied.  The Company may impose stop-transfer instructions with 
respect to securities subject to the foregoing restriction until the end of 
such 90-day period.

                                    SECTION 5

                             RIGHTS OF FIRST REFUSAL

     5.1  WESTAR RIGHT OF FIRST REFUSAL.  The Company hereby grants to Westar 
the right of first refusal to purchase its pro rata share of all New 
Securities (as defined in subsection (d) below) that the Company may, from 
time to time, propose to sell and issue. Westar's pro rata share of New 
Securities, for purposes of this right of-first refusal, shall, in the case 
of each such proposed sale and issuance, be that number of New Securities 
which are sufficient to enable Westar to continue to hold the same percentage 
of the equity securities of the Company and the same percentage of the voting 
securities of the Company after giving effect to such sale and issuance as it 
held immediately prior to such sale and issuance (in all cases calculated on 
a fully diluted basis).  Westar's right of first refusal shall be subject to 
the following provisions:

          (a)  In the event that the Company proposes to undertake an 
issuance of New Securities, it shall give Westar written notice of its 
intention, describing the type of New Securities, the price, and the general 
terms upon which the Company proposes to issue the same.  Westar shall have 
30 days from the date such notice is given (as provided in Section 7.7 
hereof) to irrevocably agree to purchase up to its pro rata share of such New 
Securities for the price and upon the general terms specified in the notice 
by giving written notice to the Company and stating therein the quantity of 
New Securities to be purchased.


                                       13

<PAGE>


          (b)  In the event that Westar fails to exercise in full its right 
of first refusal within said 30-day period, the Company shall have 60 days 
thereafter to sell the New Securities in respect of which Westar's rights 
were not exercised, at a price and upon general terms no more favorable to 
the purchasers thereof than specified in the Company's notice. In the event 
the Company has not sold the New Securities within such 60-day period, the 
Company shall not thereafter issue or sell any New Securities, without first 
offering such securities to Westar in the manner provided above.

          (c)  Westar's right of first refusal granted under this Section 5.1 
shall expire upon the first closing of the first firmly underwritten public 
offering of Common Stock of the Company that is pursuant to a registration 
statement filed with, and declared effective by, the SEC under the Act, 
covering the offer and sale of Common Stock to the public at a per share 
price (prior to underwriter commissions and expenses) of at least $275 (as 
adjusted for any combinations, consolidations, stock splits or stock 
dividends with the respect to such stock) and at an aggregate offering price 
of not less than $10,000,000.

          (d)  For purposes of this Section 5.1, the term "New Securities" 
shall mean any capital stock of the Company, whether now authorized or not, 
and rights, options, or warrants to purchase said capital stock, and 
securities of any type whatsoever that are, or may become, convertible into 
said capital stock; provided, however, that "New Securities" does not include 
(i) securities offered to the public pursuant to a registration statement 
filed under the Act; (ii) securities issued pursuant to the acquisition of 
another corporation by the Company by merger, purchase of substantially all 
of the assets, or other reorganization whereby the Company owns not less than 
fifty-one percent (51%) of the voting power of such corporation; (iii) up to 
15,000 shares of the Company's Common Stock (or related options) issued to 
employees, officers or directors of or consultants to the Company during the 
five (5) year period ending on the fifth (5th) anniversary of the Effective 
Date and up to an additional 15,000 shares of the Company's Common Stock (or 
related options) issued to employees, officers of directors of or consultants 
to the Company during the five (5) year period ending on the tenth (10th) 
anniversary of the Effective Date, in each case pursuant to an employee stock 
purchase or option plan approved by the Board of Directors or the holders of 
a majority of the outstanding voting shares of the Company (as may be 
adjusted for any combinations, consolidations or stock splits); (iv) shares 
of the Company's Common Stock issued in connection with any stock split or 
stock dividend by the Company; or


                                       14

<PAGE>


(v)  shares contributed or sold to the Plans as permitted by Section 2.1(b) 
hereof.

     5.2  COMPANY RIGHT OF FIRST REFUSAL.  Westar hereby grants to the 
Company the right of first refusal to purchase any and all Registrable 
Securities that Westar may, from time to time, propose to sell.  The 
Company's right of first refusal shall be subject to the following provisions:

          (a)  In the event that Westar proposes to sell any Registrable 
Securities, it shall give the Company written notice of its intention, 
describing the price and the general terms upon which Westar proposes to sell 
the same. The Company shall have 30 days from the date of mailing of any such 
notice to irrevocably agree to purchase all of such Registrable Securities 
for the price and upon the general terms specified in the notice by giving 
written notice to Westar to that effect.

          (b)  In the event that the Company fails to exercise in full its 
right of first refusal within said 30-day period, Westar shall have 60 days 
thereafter to sell the Registrable Securities in respect of which the 
Company's rights were not exercised, at a price and upon general terms no 
more favorable to the purchasers thereof than specified in Westar's notice. 
In the event Westar has not sold such Registrable Securities within such 
60-day period, Westar shall not thereafter issue or sell any Registrable 
Securities, without first offering such securities to the Company in the 
manner provided above.

          (c)  The Company's right of first refusal granted under this 
Section 5.2 shall expire at 12:00 A.M. on the third (3rd) anniversary of the 
Effective Date.

          (d)  For purposes of this Section 5.2, the term "Registrable 
Securities" shall have the meaning set forth in Section 4.1 hereof.

          (e)  The Company may, in its sole discretion, assign its right to 
purchase any Registrable Securities pursuant to this Section 5.2 to any 
person or entity selected by the Company's Board of Directors, including, 
without limitation, the Plans or other shareholders of the Company.  
Notwithstanding the provisions of Section 2.1 above, the Plans may accept 
such assignment and purchase such shares.

          (f)  The Company's right of first refusal granted under this Section
5.2 shall not be applicable to (i) any sale of Registrable Securities pursuant
to the exercise by Westar of its demand or piggyback registration rights under
Section 4 hereof or (ii) any sale or transfer of Registrable Securities by
Westar to any affiliate of Westar.


                                       15

<PAGE>


For purposes of this subsection (f), the term 'affiliate" shall mean any
person or entity which controls, is controlled by, or is under common control
with Westar.

                                    SECTION 6

                         REPRESENTATIONS AND WARRANTIES

     6.1  REPRESENTATIONS AND WARRANTIES OF THE COMPANY. The Company hereby 
represents and warrants that:

          (a)  ORGANIZATION, STANDING, ETC.  The Company is a corporation 
duly organized, validly existing and in good standing under the laws of the 
State of California.  The Company has all requisite corporate power and 
authority to execute, deliver and perform its obligations under this 
Agreement,

          (b)  AUTHORIZATION.  All corporate action on the part of the 
Company, its officers, directors and shareholders necessary for the 
authorization, execution and delivery of this Agreement and the performance 
of all obligations of the Company hereunder has been taken and this Agreement 
constitutes a valid and legally binding obligation of the Company, 
enforceable in accordance with its terms.

          (c)  NO CONFLICT.  The execution, delivery and performance of this 
Agreement and the consummation of the transactions contemplated hereby will 
not result in any violation or be in conflict with or constitute, with or 
without the passage of time and giving of notice, a material default under 
any provision of the Company's Articles of Incorporation or Bylaws or any 
instrument, judgment, order, writ, decree or contract to which it is a party 
or by which it is bound.  If the execution, delivery and performance of this 
Agreement is in conflict with any provision of the Company's Articles of 
Incorporation or Bylaws or any instrument or contract to which it is a party 
or by which it is bound, the Company shall use its best efforts to amend, 
modify or waive such provision to eliminate such conflict to the extent 
permitted by applicable law.

     6.2  REPRESENTATION AND WARRANTIES OF WESTAR.  Westar hereby represents 
and warrants that:

          (a)  AUTHORIZATION.  All action on the part of Westar and its 
partners necessary for the authorization, execution and delivery of this 
Agreement and the performance of all obligations of Westar hereunder has been 
taken and this Agreement constitutes a valid and legally binding obligation 
of Westar, enforceable in accordance with its terms. Westar


                                       16

<PAGE>


has all requisite power and authority to execute, deliver and perform its 
obligations under this Agreement.

          (b)  NO CONFLICT.  The execution, delivery and performance of this 
Agreement and the consummation of the transactions contemplated hereby will 
not result in any violation or be in conflict with or constitute, with or 
without the passage of time and giving of notice, a material default under 
any provision of any instrument judgment, order, writ, decree or contract to 
which it is a party or by which it is bound.

                                    SECTION 7

                                  MISCELLANEOUS

     7.1  TERM.  This Agreement shall commence on the Effective Date and shall 
terminate upon the earlier to occur of (a) December 31, 1998 and (b) such 
time as Westar owns less than 5% of the Company's outstanding voting stock.

     7.2  SURVIVAL OF WARRANTIES.  The warranties, representations and 
covenants of the Company and Westar contained in or made pursuant to this 
Agreement shall survive the execution and delivery of this Agreement and 
shall in no way be affected by any investigation of the subject matter 
thereof made by or on behalf of Westar or the Company.

     7.3  SUCCESSORS AND ASSIGNS.  Except as expressly provided in Section 
3.2(c) and 5.2(e) hereof, neither this Agreement nor any of the rights 
hereunder are assignable, by operation of law of otherwise, without the other 
party's prior written consent.  Nothing in this Agreement, express or implied, 
is intended to confer upon any party other than the parties hereto or their 
respective successors and assigns any rights, remedies, obligations, or 
liabilities under or by reason of this Agreement, except as expressly 
provided in this Agreement.

     7.4  GOVERNING LAW.  This Agreement shall be governed by and construed 
under the laws of the State of California as applied to agreements among 
California residents entered into and to be performed entirely within 
California.

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


                                       17

<PAGE>


     7.6  TITLES AND SUBTITLES.  The titles and subtitles used in this 
Agreement are used for convenience only and are not to be considered in 
construing or interpreting this Agreement.

     7.7  NOTICES.  Unless otherwise provided, any notice required or 
permitted under this Agreement shall be given in writing and shall be deemed 
effectively given upon personal delivery to the party to be notified or three 
(3) days following deposit with the United States Post Office, by registered 
or certified mail, postage prepaid and addressed to the party to be notified 
(or one (1) day following timely deposit with a reputable overnight courier 
with next day delivery instructions) at the address indicated for such party 
on the signature page hereof, or at such other address as such party may 
designate by ten (10) days' advance written notice to the other parties.

     7.8  AMENDMENTS AND WAIVERS.  Any term of this Agreement may be amended 
and the observance of any term of this Agreement may be waived (either 
generally or in a particular instance and either retroactively or 
prospectively), only with the written consent of the Company and Westar.

     7.9  SEVERABILITY.  If one or more provisions of this Agreement are held 
to be unenforceable under applicable law, such provision shall be excluded 
from this Agreement and the balance of the Agreement shall be interpreted as 
if such provision were so excluded and shall be enforceable in accordance 
with its terms.

    7.10  AGGREGATION OF STOCK.  All shares of Common Stock held or acquired 
by affiliated entities or persons of Westar shall be aggregated together for 
the purpose of determining the availability of any rights under this 
Agreement.

   7.11  CONFIDENTIALITY. The Company and the Fixed Contribution and 
Discretionary Contribution Plans on the one hand and Westar on the other each 
hereby agree that it will not, except as otherwise required by law, disclose 
or divulge to any third party the nature or contents of this Agreement except 
to the extent permitted by the other in writing.

    7.12  LEGENDS.  All certificates representing any Registrable Securities 
shall have endorsed thereon the following legends:

          (a)  The shares represented by this certificate are subject to a 
right of first refusal of this


                                       18

<PAGE>


corporation set forth in an agreement dated as of December 30, 1988, between
this corporation and the registered holder, or his predecessor in interest, a
copy of which is on file at the principal office of this corporation.

          (b)  "THESE SECURITIES HAVE NOT BEEN REGISTERED UNDER THE 
SECURITIES ACT OF 1933, AS AMENDED, AND MAY NOT BE SOLD, PLEDGED OR OTHERWISE 
TRANSFERRED UNLESS (A) COVERED BY AN EFFECTIVE REGISTRATION STATEMENT UNDER 
THE SECURITIES ACT OF 1933, AS AMENDED, (B) IN COMPLIANCE WITH RULE 144 UNDER 
SUCH ACT, OR (C) THE COMPANY HAS BEEN FURNISHED WITH AN OPINION OF COUNSEL 
REASONABLY ACCEPTABLE TO THE COMPANY TO THE EFFECT THAT NO REGISTRATION 
STATEMENT IS REQUIRED BY SUCH TRANSFER."


                                       19

<PAGE>


     IN WITNESS WHEREOF, the parties have executed this Agreement as of the 
date first above written.

                                      U.S. COMPUTER SYSTEMS


                                      By:    /s/  Gerald S. Knapp
                                          -------------------------------
                                      Title:      President
                                             ----------------------------

                            Address:  2969 Prospect Park Drive
                                      Rancho Cordova, California 95670
                                      Attention: President


                                      U.S.  COMPUTER SYSTEMS FIXED
                                      CONTRIBUTION AND DISCRETIONARY
                                      CONTRIBUTION STOCK OWNERSHIP PLANS


                                            /s/   Gerald S. Knapp
                                      -----------------------------------
                                            Gerald S. Knapp, Trustee


                                               Susan A. Mathews
                                      -----------------------------------
                                                   Trustee


                                      WESTAR CAPITAL,
                                      a California limited Partnership


                                      By:     /s/
                                          -------------------------------
                                      Title:  General Partner

                            Address:  5000 Birch Street, Suite 3000
                                      Newport Beach, California  92660
                                      Attention: General Partner


                                      ENTERPRISE PARTNERS,
                                      a California Limited Partnership


                                      By:   /s/
                                          -------------------------------
                                      Title:  General Partner


                            Address:  5000 Birch Street, Suite 6200
                                      Newport Beach, California  92660
                                      Attention: General Partner



<PAGE>

                                                                 Exhibit 10.19

                         ------------------------------------

                             STRATEGIC BUSINESS AGREEMENT

                         ------------------------------------



                                    by and between

                                U.S. COMPUTER SERVICES
                 a California corporation doing business as CableData
                                    ("CableData")


                                         and


                     INTERNATIONAL BUSINESS MACHINES CORPORATION,
                                a New York corporation
                                       ("IBM")



                             Dated as of January 19, 1992

<PAGE>

                                  TABLE OF CONTENTS


                                                                       Page
                                                                       ----

INTRODUCTION  . . . . . . .  . . . . . . . . . . . . . . . . . . . .      1

RECITALS  . . . . . . . . .  . . . . . . . . . . . . . . . . . . . .      1

ARTICLE I   DEFINITIONS   .  . . . . . . . . . . . . . . . . . . . .      2

ARTICLE II  DEVELOPMENT OF DDP/I . . . . . . . . . . . . . . . . . .      3

           Section 2.1    Mutual Cooperation . . . . . . . . . . . .      3
           Section 2.2    [*]. . . . . . . . . . . . . . . . . . . .      3
           Section 2.3    [*]. . . . . . . . . . . . . . . . . . . .      4
           Section 2.4    [*]. . . . . . . . . . . . . . . . . . . .      4
           Section 2.5    [*]. . . . . . . . . . . . . . . . . . . .      5
           Section 2.6    Joint Planning Committee . . . . . . . . .      5
           Section 2.7    Training . . . . . . . . . . . . . . . . .      5
           Section 2.8    Expected Results . . . . . . . . . . . . .      5
           Section 2.9    Freedom of Action. . . . . . . . . . . . .      6

ARTICLE III FINANCIAL MATTERS. . . . . . . . . . . . . . . . . . . .      6

           Section 3.1    Development Financing. . . . . . . . . . .      6
           Section 3.2    [*] from International Revenues. . . . . .      6
           Section 3.3    [*]. . . . . . . . . . . . . . . . . . . .      7
           Section 3.4    Commissions to be Paid by IBM to
                           CableData . . . . . . . . . . . . . . . .      7

ARTICLE IV  OTHER AREAS OF COOPERATION . . . . . . . . . . . . . . .      9

           Section 4.1    Provision of Equipment and Software. . . .      9
           Section 4.2    Technical Direction and Information. . . .      9
           Section 4.3    Training and Information . . . . . . . . .      9
           Section 4.4    Marketing Support. . . . . . . . . . . . .     10

ARTICLE V   PROPRIETARY RIGHTS . . . . . . . . . . . . . . . . . . .     11

           Section 5.1    Ownership of DDP/I, DDP/IT and DDP/SQL . .     11
           Section 5.2    Licenses . . . . . . . . . . . . . . . . .     12
           Section 5.3    Confidentiality. . . . . . . . . . . . . .     12
           Section 5.4    Use of Trademark, Name . . . . . . . . . .     12
           Section 5.5    Inventions . . . . . . . . . . . . . . . .     12

ARTICLE VI  TERM AND TERMINATION . . . . . . . . . . . . . . . . . .     13

           Section 6.1    Term . . . . . . . . . . . . . . . . . . .     13
           Section 6.2    Termination. . . . . . . . . . . . . . . .     13
           Section 6.3    Effect of Termination. . . . . . . . . . .     13


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


                                        - i -

<PAGE>

ARTICLE VII GENERAL . . . .  . . . . . . . . . . . . . . . . . . . .     14

           Section 7.1    Independent Contractors. . . . . . . . . .     14
           Section 7.2    Counterparts . . . . . . . . . . . . . . .     14
           Section 7.3    Assignment . . . . . . . . . . . . . . . .     14
           Section 7.4    Notices and Other Communication. . . . . .     14
           Section 7.5    Law to Govern; Consent to Jurisdiction . .     15
           Section 7.6    Subject Headings . . . . . . . . . . . . .     15
           Section 7.7    No Waiver of Rights. . . . . . . . . . . .     15
           Section 7.8    Settlement of Disputes . . . . . . . . . .     15
           Section 7.9    Limitation of Liability. . . . . . . . . .     16
           Section 7.10   Limitation of Actions. . . . . . . . . . .     16
           Section 7.11   Entire Agreement . . . . . . . . . . . . .     16
           Section 7.12   Expenses . . . . . . . . . . . . . . . . .     16
           Section 7.13   Amendments . . . . . . . . . . . . . . . .     16
           Section 7.14   Incorporation by Reference . . . . . . . .     16
           Section 7.15   Severability . . . . . . . . . . . . . . .     16
           Section 7.16   Licenses . . . . . . . . . . . . . . . . .     17

SIGNATURES. . . . . . . . .  . . . . . . . . . . . . . . . . . . . .     17

EXHIBITS:                                                     Section Reference

Exhibit A     List of IBM Products                            Section 1.1(e)
Exhibit B     Schedule for Porting System Libraries           Section 2.2(a)
Exhibit C     Schedule for National Language Support          Section 2.3(a)
Exhibit D     Description of SQL Porting                      Section 2.4(a)
Exhibit E     Schedule for Other Internationalization Tasks   Section 2.5(a)
Exhibit F-1   Equipment and Program Loan Agreement            Section 4.1
Exhibit F-2   RISC System/6000 Discount                       Section 4.1(b)
Exhibit G     List of Countries, Base Percentages and Tasks   Section 4.4(c)
Exhibit H     Agreement for the Exchange of
              Confidential Information                        Section 5.3


                                        - ii -

<PAGE>

                           STRATEGIC BUSINESS AGREEMENT


    THIS STRATEGIC BUSINESS AGREEMENT ("Agreement") is entered into as of
January 19, 1992, by and between U.S. COMPUTER SERVICES, a California
corporation doing business as CableData and having its principal place of
business at 2969 Prospect Park Drive, Rancho Cordova, California 95670
("CableData"), and INTERNATIONAL BUSINESS MACHINES CORPORATION, a New York
corporation having a place of business at 520 Capitol Mall, Sacramento,
California 95814 ("IBM").

                                       RECITALS

    A.  CableData has rights to and currently licenses and distributes certain
computer application software products used in market segments of the cable
television industry, such market segments including without limitation DTH
(Direct to Home), DBS (Direct Broadcast Satellite), SMATV (Single Master
Antennae Television), MDS (Microwave Distribution System), MMDS (Multipoint
Microwave Distribution System), CATV (Cable Television) and TVRO (Television
Receiving Only), and in segments of the telephony industry, (such segments
include without limitation local telephone, personal communication network,
cellular, paging and land lines), including products that are designed to
operate on the Tandem Guardian operating system.

    B.  IBM and CableData wish to cooperate in the development by CableData of
certain revised versions of CableData's products that will be compatible with
designated IBM operating systems and hardware, including IBM's UNIX-based and
POSIX-based AIX operating systems, and will be primarily suitable for use by
customers outside the United States.  Specifically, the parties wish to permit
CableData to develop a set of CableData-owned system libraries and a separate
CableData-owned application software product which can be operated on IBM
equipment and which are appropriate for international customers.  Therefore, as
further described in SECTION 2.1, the parties wish to cooperate to assist
CableData to internationalize and develop new versions of DDP/SQL (as defined
below) that are ported to certain IBM products, with a goal of developing a
single set of system libraries that can be conditionally compiled to supply
object code that can be linked either to the existing DDP/SQL for use with the
Tandem Guardian operating system or to DDP/I (as defined below) for use with IBM
operating systems, in accordance with the terms and conditions of this
Agreement.  As set forth in SECTION 4.4(c), CableData will maintain exclusive
rights to determine the countries, markets and customers to which its products
will be offered, subject to reasonable advance notice to IBM under certain
circumstances.

    C.  IBM and CableData also wish to cooperate in the provision of technical
assistance by IBM to CableData in connection with the activities described in
RECITAL B above.  Such assistance will include sharing personnel and technical
expertise to facilitate the development process.  The parties have agreed that
IBM will provide certain financial, technical and other assistance specified in
this Agreement to support CableData's development of DDP/I (as defined below),
and to assist in resolving issues (performance and others) prior to CableData's
release of new products, in accordance with the terms and conditions of this
Agreement.  Specifically, the parties have agreed that IBM shall provide
reasonable technical advice, support, consulting or other assistance to
CableData in the development of DDP/I in accordance with the terms and
conditions of this Agreement.

    D.  IBM and CableData also wish to cooperate in certain other areas related
to the activities described above, to permit CableData to support a variety of
foreign languages/countries on the versions of DDP/I to be developed, and to
facilitate CableData's marketing of such revised products in certain respects.


                                        - 1 -

<PAGE>

    NOW, THEREFORE, in consideration of these premises and of the mutual
promises and conditions contained in this Agreement, IBM and CableData hereby
agree as follows:

                                      ARTICLE I
                                     DEFINITIONS

    Section 1.1    AS USED IN THIS AGREEMENT:

    (a)  "AIX" means IBM's UNIX-based computer operating system.

    (b)  "DDP/I" means (i) a product to be developed pursuant to this Agreement
based on DDP/SQL (as defined below), and (ii) such modified versions of such
product as may be developed from time to time.

    (c)  "DDP/IT" means a product to be developed from DDP/I, incorporating
enhancements to features and parameterization that facilitate subscriber
management for telephony and cable subscribers.  DDP/IT may include interfaces
to another telephony application software system.

    (d)  "DDP/SQL" means Release 1.0 (as of December 2, 1991) of CableData's
existing proprietary cable television subscriber management applications
software.

    (e)  "Eligible Products" means proprietary computer hardware and computer
software operating systems of IBM, and other computer hardware and software
compatible with such hardware and operating systems as mutually agreed to and
identified on the list attached to this Agreement as EXHIBIT A, as amended from
time to time.

    (f)  "Internationalize" means to adapt DDP/I to allow for use with various 
human languages, character code sets, and local legal, government and 
business practices.  In the context of this Agreement it means specifically:

         (i)     To implement an NLS (as defined below) mechanism in DDP/I;

         (ii)    To modify DDP/I so that it can accommodate differences in
name, phone number and address data elements for the purposes of storage, access
and display;

         (iii)   To create a charging, statement generation and financial
reporting module that can be parameterized or otherwise adapted to function in
multiple countries including consideration for monetary formats, rounding,
taxation, and statement formats;

         (iv)    To create interfaces or interface specifications that allow
for the exchange of data between DDP/I and external entities: financial
institutions, demographic information systems, cable network design systems, and
cable service authorization (addressable) systems; and

         (v)     To create documentation in English that can be translated to
foreign languages.

    (g)  "Localize" means adapt DDP/I or DDP/IT to make it specific to a
particular human language, character code set, and local legal, government and
business practices.  In the context of this Agreement it means specifically:

         (i)     To translate all constant DDP/I user interface messages,
screen displays and print products to the local language.

         (ii)    To parameterize DDP/I to exhibit the appropriate operating
characteristics in a given country with respect to the differences in language,
character sets, collating sequences, "yes" and "no" answers, and date, time,
numeric, and monetary formats.


                                        - 2 -

<PAGE>


         (iii)  To parameterize DDP/I to conform to local business practices, 
legal and government requirements.

         (iv)  To create interfaces or interface specifications that allow 
for the exchange of data between DDP/I and external entities in a given 
country: financial institutions, demographic information systems, cable 
network design systems, and cable service authorization (addressable) 
systems.

          (v)  To translate DDP/I documentation from English to the local 
language.

    (h)  "NLS" means adapting DDP/I to support multiple languages, character 
code sets, collation sequences, monetary formats, numeric formats, time 
formats, and "yes/no" response formats.

    (i)  "System Libraries" means the code libraries that interface DDP/SQL 
and DDP/I with the Guardian operating system on Tandem hardware and the IBM 
AIX operating system on IBM hardware.

    (j)  "Subscriber" means, for purposes of this Agreement, each active 
subscriber on DDP/I software during any month.  A month, for purposes of this 
definition, is the period between successive final month-end cutoffs for 
CableData's or its distributors' or agents' invoicing purposes.  An active 
subscriber, for purposes of this definition, is a residential or business 
entity subscribing to one or more services in the CATV, DTH, DBS, MDS, MMDS 
or TVRO market segments set forth in RECITAL A of this Agreement.

    (k)  "United States" or "U.S." means the United States of America, Puerto 
Rico and Guam; provided, however, that references to United States Dollars or 
U.S. Dollars shall have their normal commercial meaning.


                                    ARTICLE II
                              DEVELOPMENT OF DDP/I


    Section 2.1   MUTUAL COOPERATION.

    The parties' respective obligations under this Agreement shall commence 
on the date first written above.  Each party shall use all reasonable efforts 
to facilitate the completion of the development projects contemplated by this 
Agreement, and to cooperate in good faith with the other party to achieve the 
development, technical and marketing objectives described in the Recitals.  
Without limitation, each party shall use its reasonable efforts to 
facilitate the development of DDP/I as set forth in this Agreement.  It is 
also the parties' intention that when DDP/I and Eligible Products are 
configured in a single system, that system will perform within agreed and 
commercially reasonable specifications and parameters.  If the parties 
disagree on a technical issue during the development process, or if when 
DDP/I and any Eligible Products are configured in a single system, that 
system does not perform within agreed and commercially reasonable 
specifications and parameters, then the parties shall confer in good faith 
concerning such issue or failure to perform, and shall negotiate in good 
faith to agree on joint action to resolve such issue or failure.  Such joint 
action may include additional development efforts on terms and conditions 
acceptable to the parties, in their discretion.

    Section 2.2   PORTING OF SYSTEM LIBRARIES.

    (a)  Both parties shall cooperate as specified in this Agreement to port 
the System Libraries to be capable of operating on the Eligible Products, 
initially porting them to be capable of operating on IBM's AIX system.  In 
such porting work, the parties will also maintain POSIX compliance of the 
System Libraries with either international standards or draft international 
standards.  For the term of this Agreement, the parties agree to cooperate in 
future modification of



                                     - 3 -



<PAGE>


the ported System Libraries.  It is the intent of the parties that such 
System Libraries will work with the Open System Foundation (OSF) capabilities 
of IBM's AIX operating system, if and when such OSF capabilities are 
available in production release on the AIX operating system.  The parties' 
efforts under this SECTION 2.2(a) shall be conducted in accordance with the 
schedule attached to this Agreement as EXHIBIT B.

    (b)  IBM shall use reasonable efforts to code the porting of the System 
Libraries as described  in SECTION 2.2(a), at IBM's porting center in San 
Jose, California; however, CableData will retain final authority for all 
design and implementation decisions during the porting process.  The porting 
activity under this SECTION 2.2 shall use only standard constructs and 
operating system calls available to AIX licensees.  IBM shall not commence 
such porting efforts until CableData has reviewed and approved the porting 
plan.  If IBM does not perform the porting process in accordance with the 
approved porting plan, and has not corrected such failure to perform within 
(30) days after notice from CableData to IBM, then CableData shall be 
entitled to retain a third party to perform such porting work, and IBM shall 
reimburse CableData for the actual costs of retaining such third party up to 
a maximum of $350,000.

     (c)  In addition, during the porting process and thereafter to the 
extent reasonably necessary, IBM shall as it deems appropriate in its sole 
discretion provide the services of an adequate number of appropriate skill 
level software engineers with compiler, operating system and database 
development experience on AIX-based Eligible Products, experience in 
application and system software development using AIX tools and utilities, to 
meet its responsibilities under this Agreement.  The principal assignment of 
such engineers shall be to consult with CableData on architecture-related 
issues and modify and create software for use in the System Libraries.  These 
activities shall be done under the guidance and acceptance of CableData.  
Upon mutual agreement of the parties, some or all of such engineers shall be 
assigned to work at CableData's research facilities in El Dorado Hills, 
California during a portion of the System Libraries porting phase.

     (d)  IBM shall provide technical information with respect to IBM's AIX 
operating system, including all AIX external call information made publicly 
available.

     (e)  With respect to porting System Libraries, CableData shall make its 
technical personnel available to IBM as CableData deems appropriate through 
CableData's El Dorado Hills, California research facility to respond to IBM's 
technical inquiries.

     Section 2.3   NLS PORTING.

     (a)  CableData shall use reasonable efforts to complete NLS for DDP/I by 
creating an architecture and code as required for all screen prompts, error 
messages, print file headers, instructions, and other literals that will use 
English as its default language, but can be utilized with other Western 
European languages using the Latin alphabet on the schedule set forth in 
EXHIBIT C.

     (b)  With respect to CableData's efforts in developing NLS tools, IBM 
shall make technical personnel with internationalization expertise reasonably 
available as IBM deems appropriate for CableData to meet the agreed upon 
schedule set forth in EXHIBIT C to provide training and consulting in 
response to CableData's questions, in particular (and not by way of 
limitation) with respect to defining and organizing this phase.

     Section 2.4   APPLICATION LAYER PORTING.  CableData shall use reasonable 
efforts to port the application layer of DDP/I as set forth on EXHIBIT D 
including necessary modifications to its database definition and SQL 
statements embedded in DDP/I, to be capable of operating on Eligible 
Products, porting them to be capable of operating on the AIX operating system 
and the POSIX standards.



                                     - 4 -



<PAGE>


     Section 2.5   INTERNATIONALIZATION FEATURES.

     (a)  CableData shall use reasonable efforts to complete such work on 
Internationalizing DDP/I as it may identify that will facilitate its use by 
customers outside the U.S., in accordance with the schedule set forth in 
EXHIBIT E attached to this Agreement.

     (b)  CableData shall use reasonable efforts to create a new charging 
run/billing software for use by customers outside the U.S.

     (c)  CableData shall use reasonable efforts to develop interface 
templates specifications, application program interfaces, and documentation 
and training materials, as CableData deems appropriate, for use by 
international distributors and developers in accordance with DDP/I.

     (d)  With respect to the completion of Internationalization tasks 
relating DDP/I as described above, IBM shall make its technical personnel 
available as IBM deems appropriate through the IBM Sacramento Branch office 
to respond to CableData's technical inquiries.

     Section 2.6   JOINT PLANNING COMMITTEE.  The parties shall consult with 
each other on at least a quarterly basis regarding progress in [*] DDP/I.  To 
facilitate such consultations and to support their mutual efforts under this 
Agreement, the parties shall establish a Joint Planning Committee composed of 
representatives designated by each party.  This body shall meet at least once 
per calendar quarter during the term of this Agreement, and more frequently 
as deemed necessary by the parties.  The Joint Planning Committee shall 
consult on the [*] projects for DDP/I, [*] schedules, or other aspects of 
cooperation between the parties as contemplated by this Agreement.  Among the 
representatives to the Joint Planning Committee designated by each party, one 
(1) person shall be a [*] to speak for that party with respect to [*] 
matters.  The designated [*] representative for CableData shall be its [*].  
IBM shall notify CableData in writing of the name of the designated [*] 
representative for IBM within fourteen (14) days following the execution of 
this Agreement by both parties.  The parties' designated representatives to 
the Joint Planning Committee may be replaced at any time, by written notice 
of the designating party to the other party.  The Joint Planning Committee 
shall meet in locations and at times reasonably acceptable to both parties. 
Each party shall be reasonable for its own costs and expenses in attending 
and participating in meetings of the Joint Planning Committee.

    Section 2.7   TRAINING.

    (a)  During the [*] process, IBM shall provide a reasonable amount of 
comprehensive training to provide the curriculum agreed to by the [*] 
representatives of both parties to a reasonable number of CableData 
personnel, to be designated by CableData, with respect to [*] DDP/I, [*].

     (b)  During the [*] process, CableData shall provide a reasonable amount 
of DDP/SQL product familiarization sessions to a reasonable number of IBM 
personnel, to be designated by IBM, at CableData's facilities in Rancho 
Cordova or El Dorado Hills.

     Section 2.8   EXPECTED RESULTS.  The parties acknowledge that upon 
completion of the development work described above, it is the parties' 
intention that DDP/I shall perform within commercially reasonable and 
acceptable parameters and specifications, consistent with the terms of this 
Agreement and subsequent mutual decisions of the designated technical 
representatives of the parties.  If DDP/I fails to perform as described in 
the preceding sentence, each party shall use reasonable efforts to perform 
further development work as outlined in this Agreement to cause


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                    - 5 -



<PAGE>


DDP/I to operate within such parameters and specifications, and to cooperate 
with the other party to achieve this objective.  The parties understand that 
development of DDP/I under this Agreement does not include development of any 
Localized version of DDP/I and does not include development of DDP/IT.

     Section 2.9   FREEDOM OF ACTION.  The parties agree that the 
relationship contemplated by this Agreement is not an exclusive arrangement.  
The parties understand that as of the date of this Agreement CableData has 
no plans for releasing a DDP product on an IBM platform in the U.S.  Each 
party is free to enter into similar agreements with others and develop and 
offer competitive products and services.


                                  ARTICLE III
                              FINANCIAL STATEMENTS

     Section 3.1   DEVELOPMENT FINANCING.  To assist CableData in financing a 
portion of the costs and expenses to be incurred by CableData in developing 
DDP/I as contemplated by this Agreement, IBM shall advance to CableData on a 
non-recourse basis (i.e., CableData shall have no liability for the repayment 
of any funds so advanced, except as expressly stated otherwise in this 
Agreement) an aggregate amount of [*], payable as follows:

     (a)  IBM shall pay CableData an initial installment of [*] 
concurrently with IBM's execution and delivery of this Agreement.

     (b)  IBM shall pay CableData five (5) further installments of [*] 
each, on the first business day of each calendar quarter, commencing on April 
1, 1992.

     (c)  All payments to CableData shall be paid by check, unless otherwise 
agreed by the parties in writing.

     Section 3.2   PROFIT SHARING FROM INTERNATIONAL REVENUES.

     (a)  Except as otherwise provided in this Agreement, beginning on 
January 1, 1995, and continuing until termination of this Agreement, CableData
shall pay fees to IBM as follows: For each customer (other than non-paying Beta
site customers) running DDP/I, CableData shall pay IBM a fee at the rate of 
[*]; provided, however, that CableData shall have no further obligations to 
pay fees to IBM after the aggregate fees received by IBM under this SECTION 
3.2 are equal to [*].  CableData shall pay such fees to IBM by check at IBM's 
office at 520 Capitol Mall, Sacramento, California 95814, unless otherwise 
agreed by the parties in writing.  Payments under this SECTION 3.2 shall be 
made quarterly in arrears for the prior quarter.

     However, notwithstanding the foregoing sentences of this SECTION 3.2 or 
anything to the contrary in this Agreement, upon CableData and IBM entering 
into a written agreement regarding CableData marketing in the United States 
DDP/I or another CableData subscriber management software product comparable 
in function to DDP/I on an IBM platform, all payments under this SECTION 3.2 
due subsequent to the date of execution of such agreement shall be suspended 
but shall continue to accrue (up to a maximum of [*] less payments 
previously made under this Section to IBM) until the earlier of (i) the date 
on which IBM has invoiced an aggregate of [*] of equipment sold or 
leased by IBM (excluding IBM's leasing subsidiary) in the United States for 
use with such DDP/I or other CableData subscriber management software product 
comparable in function to DDP/I on an IBM platform or (ii) the date this 
Agreement terminates.  If (i) is the earlier date, CableData shall not be 
required to pay to IBM the amount in suspense or any other remaining amounts 
due under this SECTION 3.2  If (ii) is the earlier date, CableData shall pay 
to IBM the total amount of the suspended payments, except that if the 
Agreement is terminated pursuant to SECTION 6.2(a) due to breach by IBM, 
then CableData shall not be required to pay to IBM the amount of the 
suspended payments.


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                     - 6 -



<PAGE>


     (b)  CableData shall keep such records of DDP/I subscribers adequate to 
meet CableData's responsibilities under this Agreement.  Not more than once 
per calendar quarter, within thirty (30) days after written request to 
CableData, IBM shall be entitled to conduct an audit and review of the 
financial records of CableData available to CableData through its on-line 
database at a CableData location in Rancho Cordova, California, relating to 
DDP/I license fees, to verify the proper amounts of fees due to IBM for that 
quarter under this SECTION 3.2.  The request shall specify the countries or 
markets for which records are to be provided.  The audit shall occur within 
normal business hours, at a location in Rancho Cordova, California mutually 
acceptable to IBM and CableData.  IBM shall be entitled to retain an 
independent certified public accounting firm to assist it with the audit.  
The parties shall be responsible for their own costs and expenses in 
connection with the audit.

    SECTION 3.3   [*] If, at any time during the term of this Agreement, IBM 
enters into a Cooperative Marketing Agreement (as defined below) [*] of 
CableData (including without limitation [*] provides subscriber management 
products or services similar or equivalent to DDP/I to the market segments 
described in Recital A), in a country in which [*] under this Agreement, [*] 
the terms or conditions provided to CableData in this Agreement, then:

     (a)  Within ten (10) days of such event or of CableData providing notice 
to IBM pursuant to SECTION 4.4(c) that CableData intends to [*], IBM shall 
notify CableData in writing, providing CableData with reasonably complete 
information about [*]; and

     (b)  Concurrent with such notice, IBM [*] Cooperative Marketing 
Agreement [*].  Within thirty (30) days after receiving the notice, CableData 
shall be entitled [*] Cooperative Marketing Agreement by written notice to 
IBM, if CableData wishes.  If CableData does not [*] Cooperative Marketing 
Agreement within such thirty (30) days, CableData has waived its right to 
assert a violation of this SECTION 3.3 as to that agreement.

     (c)  As used herein, a "Cooperative Marketing Agreement" means an 
agreement for resale of IBM products with a specified software product and an 
agreement providing commissions based on the installation of a specified 
software product on IBM products.  "Cooperative Marketing Agreement" shall 
not include, but not by way of limitation, equity or other investment 
relationships.

     Section 3.4   COMMISSIONS TO BE PAID BY IBM TO CABLEDATA.

     (a)  In return for CableData's performance of the applicable tasks set 
forth in EXHIBIT G, within thirty (30) days after the end of each calendar 
quarter, IBM shall pay CableData Commissions (as defined in SECTION 3.4(b) 
below) on the Invoice Price of Commissionable Products invoiced by IBM during 
such quarter, less withholding required by law in the applicable 
jurisdiction.  IBM shall pay such Commissions to CableData by check at 
CableData's office at 2969 Prospect Park Drive, Rancho Cordova, CA 95670.  
Where payments to CableData under this SECTION 3.4 are based on amounts 
denominated in a currency other than United States Dollars, IBM shall 
calculate and pay the Commission to CableData in United States Dollars, using 
the exchange rate set forth in the "Exchange Rates" column of the "Currency 
Trading" section of THE WALL STREET JOURNAL for the last day of the calendar 
quarter for which payment is being made (or, if not available, on the last 
preceding day on which such rate was published in such column); if such 
column does not publish the applicable exchange rate, then the prevailing 
exchange rate offered by Citibank, N.A., at its main office in New York, New 
York, for that date shall apply.  At the time of payment of Commission, IBM 
will provide CableData an analysis supporting the amount of payment of the 
Commission, which shall contain the following information: customer name, 
IBM customer's number, location, type of transaction, description of 
applicable Commissionable Products, date of invoices and invoice numbers, 
Invoice Price (as defined below), with the summation of aggregate 
Invoice Prices times


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                    - 7 -
<PAGE>

applicable Base Percentage specified in EXHIBIT G (less withholding, if 
applicable) equating to the payment of Commission. This information shall be 
treated as Confidential under the terms of the Agreement for Exchange of 
Confidential Information set forth in EXHIBIT H without the need for further 
designation on any further supplement to that agreement. In addition, IBM 
shall promptly supply to CableData adequate detail of withholding deducted 
from the Commission by IBM and withholding tax receipts.

     (b) In this SECTION 3.4, the following definitions shall apply:

     (i) "Commissionable Products" means Eligible Products marketed by IBM or 
its wholly-owned subsidiaries, provided that such Products are or will be 
used primarily with DDP/I and CableData has performed the applicable tasks 
set forth in EXHIBIT G. Not all tasks are applicable to each transaction.

     (ii) "Invoice Price" means the price, charge, fee, or other 
consideration invoiced by IBM or IBM wholly-owned subsidiary to the end-user 
customer for Commissionable Products, except that, for Commissionable 
Products which are being invoiced as a periodic charge, the "Invoice Price" 
shall be deemed to be the periodic charge times the total number of periods 
for the charges committed by the end-user customer under the applicable 
agreement or three (3) years, whichever is longer.

     (iii) "Commission" means the amount determined by multiplying the 
relevant Base Percentage set forth in EXHIBIT G times the relevant aggregate 
Invoice Prices for Commissionable Products. Calculation of Base Commission 
shall be done separately for each country specified in EXHIBIT G. The tasks 
associated with the Commission for each group are specified in EXHIBIT G. To 
the extent that CableData wishes to qualify for commissions greater than the 
Base Percentages described in EXHIBIT G, CableData may enter into an 
agreement or agreements with individual IBM wholly-owned subsidiaries 
specifying such other commissions and associated tasks as the parties may 
mutually agree.

     (c) IBM shall keep records of the sale of Commissionable Products 
adequate to meet IBM's responsibilities under this Agreement. Not more than 
once per calendar quarter, within thirty (30) days after written request to 
IBM, CableData shall be entitled to conduct an audit and review of the 
financial records of IBM available to IBM through its on-line database at an 
IBM location in Sacramento, California, relating to Commissionable Products, 
as described in SECTION 3.4(a) above, to verify the proper amounts of 
Commissions due to CableData for that quarter under this SECTION 3.4. The 
request shall specify the countries or markets for which records are to be 
provided. The audit shall occur within normal business hours, at a location 
in Sacramento, California mutually acceptable to CableData and IBM. CableData 
shall be entitled to retain an independent certified public accounting firm 
to assist it with the audit. The parties shall be responsible for their own 
costs and expenses in connection with the audit.

     (d) IBM is acting as a collection agent for CableData in obtaining 
Commissions from its wholly-subsidiaries in connection with this Agreement. 
CableData shall be entitled to any Foreign Tax Credit under United States law 
associated with amounts withheld by IBM for CableData on the Commissions for 
CableData hereunder in foreign countries. IBM agrees to enter an agreement 
with each of its affected wholly-owned subsidiaries regarding its collection 
activities for the Commissions due hereunder. IBM will notify CableData if 
and when the appropriate taxing authority notifies IBM that such withheld 
amounts are not due and payable to such taxing authority.

     (e) As to each DDP/I customer, Commissions shall be payable under this 
SECTION 3.4 for a period of five (5) years after the date of termination of 
this Agreement, except in the case of termination by IBM pursuant to SECTION 
6.2(a) for breach by CableData (in which case Commissions shall cease on the 
date of such termination). CableData must continue to perform its obligations 
describing in EXHIBIT G to qualify for Commissions and the terms of this 
Agreement apply to both

                                     -8-
<PAGE>

parties' obligations under this SECTION 3.4(e). This SECTION 3.4 shall 
survive the expiration or earlier termination of this Agreement as described 
in this SECTION 3.4(e).

                               ARTICLE IV
                      OTHER AREAS OF COOPERATION

     Section 4.1  PROVISION FOR LOAN EQUIPMENT AND SOFTWARE.

     (a) For the term of this Agreement, IBM agrees to loan to CableData 
under the terms of Exhibit F-1 IBM hardware and software for use by CableData 
in development of IBM-approved CableData application software; such loaned 
IBM hardware/software shall include at least one (1) CPU and twelve (12) 
workstations for each IBM-approved CableData application package to be 
developed and such other loaned IBM hardware/software proportionate to the 
development task as the parties may mutually agree.

     Within ten (10) days following the execution of this Agreement, IBM 
shall loan to CableData free of charge the hardware and software listed in, 
and on the terms and conditions set forth in, EXHIBIT F-1 (which is the IBM 
Equipment and Program Loan Agreement). Additional Loaned Hardware and 
Software specified at a later date will be supplied under the terms of such 
agreement. The duration of the loan shall be the term of this Agreement 
except in the event of termination of the Agreement by CableData, pursuant to 
SECTION 6.1(a) for breach by IBM or terminated by IBM pursuant to SECTION 
6.2(c), in which case the loan shall continue on the terms and conditions set 
forth in Exhibit F-1 until the earlier of (i) two years from the date of 
termination, or (ii) January 19, 1998. CableData shall have ninety (90) days 
after delivery in which to elect to accept such hardware and software, and 
may inspect, test and use such items during the ninety (90)-day period. 
Thereafter, IBM shall provide free upgrades to such hardware and software 
under the terms and conditions of EXHIBIT F-1 as and when they become 
available and, in addition, IBM shall provide hardware and software for new 
platforms as IBM and CableData shall mutually agree.

     (b) CableData may purchase or license development hardware and license 
development software from IBM during the term of this Agreement on the terms 
and conditions set forth in EXHIBIT F-2 (which is the IBM Customer Agreement 
and its Attachment for IBM RISC System/6000 Development Discount). Such terms 
and conditions shall only apply to such purchase or license.

     Section 4.2  TECHNICAL DIRECTION AND INFORMATION. Each party shall 
provide to the other party advance notices of new product developments and 
releases that its technical representative under this Agreement has 
determined has applicability and appropriateness to DDP/I as soon as 
practical but in no event later than such information is publicly disclosed 
by the party providing such information. The receiving party shall keep such 
information confidential under the terms of EXHIBIT H without the necessity 
of adding such information as a supplement to said EXHIBIT H until such 
public disclosure by the party providing such information. At least once per 
calendar quarter each party shall provide to the other party a forecast of 12 
to 18-month trends and directions (excluding pricing) within such party's own 
company and applicable industry(ies) as it applies to the IBM platform and 
CableData application software as each party deems appropriate.

     Section 4.3  TRAINING AND INFORMATION.

     (a) IBM shall use reasonable efforts to optimize the performance of 
DDP/I in its initial release. These efforts shall include training of 
CableData personnel in the techniques used. CableData will retain final 
authority for all design and implementation decisions regarding DDP/I.

     (b) With respect to the tasks described in ARTICLE II, IBM shall also 
make available to CableData the personnel and facilities of its Benchmark 
Center located in Austin, Texas as IBM deems appropriate to meet the agreed 
upon schedules set forth in EXHIBITS B THROUGH E.

                                     -9-
<PAGE>

     (c) As and when IBM releases or makes available or in any country in 
which CableData or its distributors are marketing DDP/I any new software 
products for use on the RISC System/6000, then IBM's Sacramento Branch office 
and CableData shall jointly evaluate such products for applicability to 
DDP/I, and in the event that they reasonably determine such products are 
applicable to DDP/I, then IBM's Sacramento Branch office shall make an 
evaluation copy of each such new product applicable to CableData at no cost 
to CableData. The terms of the Equipment and Program Loan Agreement set forth 
as EXHIBIT F-1 shall govern CableData's rights to use such evaluation copy.

     Section 4.4  MARKETING SUPPORT.

     (a) INTERNATIONAL MARKETING MANAGER. Within thirty (30) days following 
the date of this Agreement, IBM shall appoint, for a minimum of two (2) years 
and thereafter shall have on its staff during the term of this Agreement for 
such time as CableData continues marketing activity for DDP/I on Eligible 
Products, an international marketing manager located in Sacramento, 
California, with primary responsibilities for managing and facilitating, as 
required, IBM's cooperation with CableData in marketing DDP/I and related 
Eligible Products.

     (b) JOINT MARKETING EFFORTS AND PUBLICITY. IBM and CableData shall 
cooperate in preparing and disseminating an initial press release describing 
their relationship pursuant to this Agreement, and subsequent press releases 
concerning the development and release of DDP/I and other products and 
services pursuant to this Agreement, as appropriate. Each of CableData and 
IBM shall appoint a designated representative to coordinate the parties' 
joint participation in business and trade shows, exhibitions, and similar 
events, cooperative marketing and communications with distributors and 
customers as mutually agreed between the parties. Each party shall advise the 
other in writing of the name (and any change) of its designated 
representative. Neither party shall release a press release mentioning the 
relationship or activities under this Agreement during the term of this 
Agreement without the prior written approval of the designated representative 
of the other.

     (c) MARKETING DISCRETION. Notwithstanding anything to the contrary in 
this Agreement, CableData shall be entitled to market its products, including 
DDP/I and DDP/IT, in jurisdictions and markets directly, through 
subsidiaries, through local distributors selected by CableData, or through 
other means selected by CableData. CableData will consider IBM and/or its 
wholly-owned subsidiaries when selecting a distributor or distributors for a 
country. CableData shall retain complete discretion with respect to the 
selection of markets in which its products will be marketed and sold, and in 
the appointment of local distributors for such markets, choice of its 
marketing mechanisms, and similar matters. Upon the request of CableData or 
any designated local distributor of CableData, IBM will provide reasonable 
marketing assistance (subject to availability of personnel) to CableData or 
such distributor, as the case may be, with respect to marketing efforts in 
such marekts. Upon the request of IBM or IBM wholly-owned subsidiaries in those
countries designated as "EMEA-A" in EXHIBIT G, CableData will provide reasonable
marketing assistance (subject to availability of personnel) to IBM or such
distributor, as the case may be, with respect to marketing efforts in such
markets. Attached to this Agreement as EXHIBIT G is a list of countries in which
CableData contemplates marketing DDP/I and in which IBM's RISC System/6000 is
marketed; the parties understand that CableData makes no commitment to market
DDP/I in any or all of the countries listed in EXHIBIT G or any other country.
CableData will give IBM reasonable advance written notice prior to marketing
DDP/I in any of the countries listed in EXHIBIT G (as the same may be amended
from time to time by agreement of the parties).

     IBM and CableData will agree to a list of IBM products applicable to 
their joint marketing efforts in a specific country. The list may be revised 
at any time by mutual agreement.

     IBM shall have the right to offer, at its sole discretion, any products 
or services in any country or countries.

     IBM shall have the right, at its sole discretion, to market or to 
withdraw from marketing IBM products, in any country at any time. However, in 
the event of IBM's withdrawal of an IBM

                                     -10-
<PAGE>

hardware product (A) IBM and CableData will make all reasonable efforts to 
identify a substitute IBM product and include such substitute IBM product in 
the applicable list; and (B) if such withdrawn IBM product is currently in 
use, or is currently committed to a specific customer(s) for use, in that 
country, with DDP/I, IBM will commit to such customer(s) that such withdrawn 
IBM product will be supported by IBM for a minimum of five (5) years 
following its withdrawal from marketing in such country. "Support" shall mean 
routine corrective maintenance to the extent available for the product prior 
to withdrawal.

     In the event of withdrawal of an IBM software product, and such 
withdrawn IBM product is in use, or is on the date of withdrawal committed to 
a specific customer(s) for use, in that country with DDP/I, IBM will commit 
to such customer(s) that such withdrawn IBM product will be supported by IBM 
for the remaining period, if any, of its program currency.

                              ARTICLE V
                         PROPRIETARY RIGHTS

     Section 5.1

     (a) OWNERSHIP OF DDP/I, DDP/IT AND DDP/SQL. CableData shall retain 
exclusive ownership of all right, title and interest in and to DDP/SQL, 
DDP/I, and DDP/IT and all portions thereof (including, but not limited to, 
applications and systems libraries) now existing or to be developed or 
adapted pursuant to this Agreement by CableData, IBM, any third party or 
parties, or their respective employees, representatives, agents, consultants, 
independent contractors, successors and assigns pursuant to this Agreement, 
in any and all forms (including but not limited to source code and 
machine-executable code), all derivative works thereof and enhancements 
thereto developed pursuant to this Agreement or otherwise, all documentation, 
work papers or written materials relating to any of the foregoing, and all 
Intellectual Property Rights in any of the foregoing; and IBM hereby assigns 
to CableData all right, title, and interest in and to any of the foregoing
(including but not limited to, assignment of any copyrights it may have to the
porting code prepared pursuant to SECTION 2.2 of this Agreement) which it may
otherwise have or be deemed to acquire, subject to IBM's ownership of and
license to certain patent rights under SECTION 5.5 of this Agreement. Upon
CableData's request, IBM agrees to assist CableData as may be required to
perfect CableData's rights as described in this SECTION 5.1, which assistance
shall include the execution of any and all instruments or documents that may be
necessary or convenient to establish, evidence, maintain, defend or enforce 
CableData's rights as described in this SECTION 5.1. "Intellectual Property 
Rights" means all rights, title and interest in and to patents, patent 
applications, copyrights, mask work rights, trademarks, trade names and trade 
secrets. The assignment to CableData of trade secret rights in this SECTION 
5.1(a) shall not, and shall not be construed to, preclude IBM from using, or 
require IBM to keep confidential, any ideas, concepts, know-how, or 
techniques (Knowledge) related to information handling, including use in 
creation or offering of products to its customers.

     (b) This Agreement shall not be construed or interpreted to grant to IBM 
any right or license, by implication, estoppel or otherwise, to sell, 
transfer, assign, develop, or make any use of DDP/SQL, DDP/I, or DDP/IT, 
except as expressly provided in this Agreement. Without limitation to the 
generality of the foregoing sentence, IBM shall have no rights to adapt, 
alter, Localize, license or sublicense to third parties any of the foregoing 
items, without the prior written consent of CableData, which may be granted 
or withheld in CableData's sole discretion. IBM shall not employ, retain, or 
subcontract with any third party or parties to perform any obligations or 
exercise any rights of IBM under this Agreement, unless IBM has first 
obtained the prior written consent of CableData to such action.

                                     -11-
<PAGE>

     Section 5.2  LICENSES.

     (a) For the term of this Agreement, CableData grants to IBM a 
nonexclusive and nontransferable license to use one (1) copy of DDP/I in 
machine-executable code only, for IBM's internal purposes only in connection 
with this Agreement and to make one (1) archival copy for back-up purposes.

     (b) IBM hereby grants to CableData, its subsidiaries and distributors, 
and its and their respective customers, mediate and immediate, an 
irrevocable, non-exclusive, worldwide, non-transferrable, paid-up license 
under all present and future IBM patents to make, have made, use, have used, 
lease, license, sell and/or otherwise transfer DDP/SQL, DDP/I and DDP/IT, 
including derivative works thereof, either alone or in combination with 
equipment, insofar as any infringement of such patents would otherwise arise 
in whole or in part from the performance of IBM's obligations under this 
Agreement.

     (c) Each party grants the other only the licenses specified. No other 
licenses, including licenses under patents, are granted.

     Section 5.3  CONFIDENTIALITY.

     (a) The parties hereby agree to be bound by the terms of the Agreement 
for the Exchange of Confidential Information set forth as EXHIBIT H. Unless 
specifically identified in this Agreement or the supplement to the Agreement 
for Exchange of Confidential Information as confidential, all information 
exchanged is non-confidential.

     (b) Neither party shall disclose the existence of this Agreement until 
such time as the parties shall mutually agree upon and implement a public 
announcement; thereafter, either party may disclose the existence of this 
Agreement, but neither party shall disclose the specifics of the Agreement to 
third parties without the prior written consent of the other party, except as 
may be required by law or to its auditors in the internal operations of its 
business.

     Section 5.4  USE OF TRADEMARK, NAME. Each party agrees not to use the 
other's name, trade name, trademark, service mark, or other designation 
without such other party's prior written consent.

     Section 5.5  INVENTIONS.

     (a) In the event employees of IBM conceive or reduce to practice a 
patentable invention in the course of performing this Agreement, and not 
jointly with any employees of CableData, and IBM applies for and is issued a 
patent thereon, all ownership rights in the patent shall belong solely to 
IBM, subject to CableData's rights under SECTION 5.2(b).

     (b) In the event employees of IBM and CableData jointly conceive or 
reduce to practice a patentable invention in the course of performing this 
Agreement, and either CableData or IBM elects to apply for and is issued a 
patent thereon, all ownership rights in the patent shall belong to IBM and 
CableData jointly and each party shall have the right to grant licenses to 
third parties or assign its rights therein without accounting to the other 
party; provided, however, that CableData shall have the sole and exclusive 
right under any such patent to make, have made, use, have used, lease, 
license, sell and/or otherwise transfer DDP/SQL, DDP/I and DDP/IT products, 
including derivative works thereof, either alone or in combination with 
equipment.

                                     -12-
<PAGE>


                                  ARTICLE VI
                             TERM AND TERMINATION


     Section 6.1  TERM.  This Agreement shall become effective on the date 
first written above and shall continue in effect thereafter for a period of 
six (6) years unless sooner terminated pursuant to this ARTICLE VI. After 
such six (6)-year period, the term of this Agreement shall be automatically 
renewed for successive periods of one (1) year each, unless written notice of 
one party's desire to terminate this Agreement is given to the other party at 
least three (3) months prior to the end of the then-current period. 
Termination at the end of the initial six (6) year period or any subsequent 
one (1) year period is hereinafter referred to as the "Natural Termination 
Date." Termination on the Natural Termination Date shall not be deemed to be 
a termination under SECTION 6.2(a), (b) or (c).

     Section 6.2  TERMINATION.

     (a)  TERMINATION FOR BREACH.  Either party may terminate this Agreement, 
effective upon dispatch of written notice of termination to the other party, 
upon breach by such other party of any of its material obligations under this 
Agreement and failure to cure such breach within ninety (90) days after 
receipt of notice specifying the breach. This right to terminate shall be in 
addition to any remedies available in law or equity, which remedies are 
expressly retained.

     If IBM terminates this Agreement for breach of this Agreement by 
CableData, then, on the effective date of termination under this 
SECTION 6.2(a), CableData shall refund to [*] under SECTION 3.1, less 
payments previously made by CableData to IBM pursuant to SECTION 3.2 and less 
any fees forgiven pursuant to SECTION 3.2 prior to termination.

     If CableData terminates this Agreement for breach of this Agreement by 
IBM, on the effective date of termination under this SECTION 6.2(a), IBM 
shall pay to CableData (1) any remaining scheduled installments that would 
have been due to CableData in subsequent months under SECTION 3.1 if the 
termination had not occurred, up to a total of [*] and (2) reimbursement 
pursuant to SECTION 2.2(b) if incurred. Additionally, CableData shall recover 
the actual amount of Commissions earned as of date of termination.

     (b)  TERMINATION BY CABLEDATA FOR REASONS OTHER THAN IBM BREACH.  
CableData may in its sole discretion, upon ninety (90) days' prior written 
notice to IBM, terminate this Agreement at any time, without breach by IBM. 
[*]

     (c)  TERMINATION BY IBM FOR REASON OTHER THAN CABLEDATA BREACH.  IBM may 
in its sole discretion, upon ninety (90) days' prior written notice to 
CableData, terminate this Agreement at any time, without breach by CableData. 
[*]

     Section 6.3  EFFECT OF TERMINATION.  Except as otherwise expressly 
stated in SECTION 6.2(a), (b) or (c) or in the following sentence, upon any 
termination of this Agreement all rights and obligations of each party in 
this Agreement shall expire and be of no further force or effect, and each 
party shall be entitled to retain all funds, fees and payments that it has 
received from the other party under this Agreement and prior to the effective 
date of termination. Notwithstanding the foregoing, no expiration or earlier
termination of this Agreement shall relieve either party of its rights or 
obligations as described in SECTION 3.4(e) or ARTICLE V of this Agreement, 
which rights and obligations are expressly intended to survive any such 
expiration or termination.


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                    - 13 -


<PAGE>


                                  ARTICLE VII
                                    GENERAL


     Section 7.1  INDEPENDENT CONTRACTORS.

     (a)  No provision of this Agreement shall make, or be construed to make, 
either party an agent, servant, employee, partner, or joint venturer of the 
other party. The parties to this Agreement are and shall remain independent 
contractors. Each party shall retain exclusive management, direction, and 
control of its employees and the work to be performed by it hereunder.

     (b)  Without limitation, each party shall provide the personnel, 
products, training and other support described in this Agreement at its own 
cost and expense, and at no charge to the other party. All personnel assigned 
by one party to work with the other party pursuant to this Agreement shall 
remain employees of the assigning party, and shall possess suitable technical 
skills and expertise consistent with the requirements of their respective 
assignments. Each party shall cause any of its employees assigned to provide 
services at the other party's facilities to comply with all reasonable 
regulations and instructions while at such facilities. Each party shall have 
the right to exclude from its premises any persons.

     Section 7.2  COUNTERPARTS.  This Agreement may be executed in any number 
of counterparts, each of which shall be deemed an original instrument, but 
all of which together shall constitute only one and the same instrument.

     Section 7.3  ASSIGNMENT.  Neither this Agreement nor any right or 
obligation hereunder is assignable in whole or in part, whether by operation 
of law or otherwise, except (a) upon prior written consent of the other 
party, which consent shall not be unreasonably withheld, (b) by a party to 
its wholly-owned subsidiary following notice to the other party, which 
consent shall not be unreasonably withheld, or (c) as otherwise expressly 
provided in this Agreement. Notwithstanding the foregoing, this Agreement 
shall be binding upon, and shall inure to the benefit of, the parties hereto 
and their respective successors and assigns. The successor or assign of a 
party hereto shall execute and deliver all documents and instruments 
reasonably requested by the other party to evidence and confirm its 
obligations under this Agreement.

     Section 7.4  NOTICES AND OTHER COMMUNICATION.  Every notice or other 
communication required or contemplated by this Agreement to be given by any 
party shall be delivered either by (i) personal delivery, (ii) postage 
prepaid, return receipt requested, registered or certified mail (airmail if 
available), or the equivalent of registered or certified mail under the laws 
of the country where mailed, (iii) nationally recognized overnight courier, 
such as Federal Express or UPS, or (iv) facsimile with a confirmation copy 
sent simultaneously by postage prepaid, return receipt requested, registered 
or certified mail, in each case addressed to the party for whom intended at 
the following address:

     To CableData:      U.S. Computer Services
                        2969 Prospect Park Drive
                        Rancho Cordova, CA 95670
                        Attn: Sr. Vice President-General Manager
                                 of CableData
                        Facsimile:  (916) 636-5628

     With a copy to:    U.S. Computer Services
                        2969 Prospect Park Drive
                        Rancho Cordova, California  95670
                        Attn:  General Counsel
                        Facsimile:  (916) 636-5628


                                    - 14 -


<PAGE>


     To IBM:            International Business Machines
                          Corporation
                        520 Capitol Mall
                        Sacramento, California 95814
                        Attn:  General Manager
                        Facsimile:  (916) 326-5068

or at such other address as the intended recipient previously shall have 
designated by written notice to the other party. Notice by registered or 
certified mail shall be effective on the date it is officially recorded as 
delivered to the intended recipient by return receipt or equivalent, and in 
the absence of such record of delivery, the effective date shall be presumed 
to have been the tenth (10th) business day after it was deposited in the 
mail. All notices and other communications required or contemplated by this 
Agreement to be delivered in person or sent by courier shall be deemed to 
have been delivered to and received by the addressee and shall be effective 
on the date of personal delivery; notices delivered by facsimile with 
simultaneous confirmation copy by registered or certified mail shall be 
deemed delivered to and received by the addressee and effective on the first 
business day in the location where received after the date received. Notice 
not given in writing shall be effective only if acknowledged in writing by a 
duly authorized representative of the party to whom it was given.

     Section 7.5  LAW TO GOVERN; CONSENT TO JURISDICTION.  The validity, 
construction and enforceability of this Agreement shall be governed in all 
respects by the laws of California applicable to agreements negotiated, 
executed and performed in California between California corporations whether 
or not one or more of the parties shall now be or hereafter become a resident 
of another state or country. Each party hereby consents to the personal 
jurisdiction of the state and federal courts in Sacramento, California for 
the purposes of any litigation commenced in such court by CableData to 
enforce its rights under this Agreement, and each party hereby waives any 
rights it may otherwise have to request a change of venue from such court. 
Each party hereby further consents and agrees that service of any process 
necessary or convenient with respect to any such litigation may be made on it 
by registered mail, postage prepaid, at its address as set forth in 
SECTION 7.4, which service of process shall be fully effective in all 
respects upon receipt. The parties agree that this Agreement shall be deemed 
to be executed and performed in the County of Sacramento, California.

     Section 7.6  SUBJECT HEADINGS. The subject headings of the Articles and 
Sections of this Agreement are included for the purpose of convenience only, 
and shall not affect the construction or interpretation of any of its 
provisions.

     Section 7.7  NO WAIVER OF RIGHTS.  All waivers hereunder must be made in 
writing, and failure at any time to require any other party's performance of 
any obligation under this Agreement shall not affect the right subsequently 
to require performance of that obligation. Any waiver of any breach of any 
provision of this Agreement shall not be construed as a waiver of any 
continuing or succeeding breach of such provision or a waiver or modification 
of the provision.

     Section 7.8  SETTLEMENT OF DISPUTES.

     (a)  Any controversy or claim between the parties arising out of this 
Agreement shall be resolved as follows. Within thirty (30) days of the time 
that such dispute or controversy arises, the General Manager of each party 
shall confer in good faith for a period of not less than thirty (30) days in 
an attempt to resolve it. No judicial proceeding may be commenced until the 
end of such thirty (30)-day period.

     (b)  If any judicial proceedings shall be commenced to enforce this 
Agreement or any provision of this Agreement, the prevailing party or parties 
in such proceedings shall be entitled to recover the reasonable attorneys' 
fees, costs and expenses incurred by such prevailing party or parties in 
connection with such proceedings.


                                    - 15 -


<PAGE>


     Section 7.9  LIMITATION OF LIABILITY

     (a)  Circumstances may arise where because of default on IBM's part or 
other liability, CableData is entitled to recover damages from IBM. In each 
such instance, regardless of the basis on which CableData is entitled to 
claim damages from IBM, IBM is liable only for: (1) bodily injury (including 
death), and damage to real property and tangible personal property; and 
(2) the amount of any other actual loss or damage, up to the greater of 
(i) $100,000, or (ii) the amount set forth in SECTION 6.2(c) of this 
Agreement and the actual amount of Commissions earned as of the date of 
termination, if IBM has not yet paid these amounts to CableData. Under no 
circumstances shall IBM liable for any of the following: third-party claims 
against CableData for losses or damages (other than those listed in the first 
item above); loss of, or damage to, CableData's records or data; or economic 
consequential damages (including lost profits or savings) or incidental 
damages, even if IBM is informed of their possibility. actual amount of 
Commissions earned as of the date of termination.

     (b)  Circumstances may arise where because of default on CableData's 
part or other liability, IBM is entitled to recover damages from CableData. 
In each such instance, regardless of the basis on which IBM is entitled to 
claim damages from CableData, CableData is liable only for: (1) bodily injury 
(including death), and damage to real property and tangible personal 
property; and (2) the amount of any other actual loss or damage, up to the 
greater of [*] or the amount set forth in SECTION 6.2(c) of this 
Agreement if CableData has not yet paid that amount to IBM. Under no 
circumstances shall CableData liable for any of the following: third-party 
claims against IBM for losses or damages (other than those listed in the 
first item above); loss of, or damage to, IBM's records or data; or economic 
consequential damages (including lost profits or savings) or incidental 
damages, even if CableData is informed of their possibility.

     Section 7.10  LIMITATION OF ACTIONS.  Neither party will bring a legal 
action under or related to this Agreement more than four (4) years after the 
cause of action arose.

     Section 7.11  ENTIRE AGREEMENT.  This Agreement represents the entire 
understanding and agreement between the parties concerning the subject matter 
hereof and supersedes any and all prior negotiations, understandings or 
agreements in regard thereto, oral or written.

     Section 7.12  EXPENSES.  Except as expressly provided herein to the 
contrary, each party to this Agreement shall be solely responsible for its 
expenses incurred in connection with the negotiation, preparation, execution, 
delivery and performance of this Agreement.

     Section 7.13  AMENDMENTS.  This Agreement or the Exhibits hereto may not 
be modified except by an instrument or instruments in writing signed by the 
party or parties against whom enforcement of such modification is sought.

     Section 7.14  INCORPORATION BY REFERENCE.  EXHIBITS A THROUGH H attached 
to this Agreement and referred to herein are hereby incorporated by reference 
into this Agreement.


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                    - 16 -


<PAGE>


     Section 7.15  SEVERABILITY.  Whenever possible, this Agreement shall be 
interpreted in such a manner as to be effective and valid under applicable 
law, but if any provision of this Agreement should be prohibited or invalid 
under applicable law, such provision shall be construed as ineffective to the 
extent of such prohibition or invalidity without invalidating the remainder 
of such provision or the remaining provisions of this Agreement.

     IN WITNESS WHEREOF, the parties have executed this Agreement as of the 
date and year first written above.

"CableData"                            "IBM"
U.S. COMPUTER SERVICES,                INTERNATIONAL BUSINESS
a California corporation                 MACHINES CORPORATION,
                                       a New York corporation


By:   /s/                              By:    /s/
     -------------------------               ------------------------

Title:  SR VP & GM                     Title:  General Manager
       -----------------------                -----------------------

By:                                    By:   
     -------------------------               ------------------------
Title:                                 Title:
       -----------------------                -----------------------












                                    - 17 -


<PAGE>

                                   EXHIBIT A

                         LIST OF ELIGIBLE PRODUCTS




                                      -18-


<PAGE>

[*]


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


<PAGE>

[*]


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

<PAGE>

[*]


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

<PAGE>

[*]


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

<PAGE>

[*]


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

<PAGE>


[*]


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


<PAGE>

[*]


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

<PAGE>


[*]


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


<PAGE>

                                      EXHIBIT B

                        SCHEDULE FOR PORTING SYSTEM LIBRARIES*


                Start:         First quarter 1992
                End:           Second quarter 1992
                Note:          Primarily IBM activity with
                               assistance from CableData

*Assuming that the Agreement is executed on or before January 19, 1992


                                        - 19 -

<PAGE>

                                      EXHIBIT C

                       SCHEDULE FOR NATIONAL LANGUAGE SUPPORT*

              Start:    Fourth quarter 1991
              End:      First quarter 1993
              Note:     Primarily CableData activity with assistance from IBM


*Assuming that the Agreement is executed on or before January 19, 1992


                                        - 20 -

<PAGE>

                                      EXHIBIT D

                           SCHEDULE FOR APPLICATION LAYER*

              Start:    First quarter 1992
              End:      Second quarter 1992
              Note:     Primarily CableData activity with assistance from
                        database vendor


*Assuming that the Agreement is executed on or before January 19, 1992


                                        - 21 -

<PAGE>

                                      EXHIBIT E

                     SCHEDULE FOR OTHER INTERNATIONALIZATION TASKS*

              Start:    Second quarter 1992
              End:      First quarter 1993
              Note:     Primarily CableData activity; Beta group of programs


*Assuming that the Agreement is executed on or before January 19, 1992


                                        - 22 -

<PAGE>

[LOGO]

                                      EXHIBIT F-I

EQUIPMENT AND PROGRAM LOAN AGREEMENT
- --------------------------------------------------------------------------------
IF YOU HAVE SIGNED THE IBM CUSTOMER AGREEMENT, ITS ATTACHMENT FOR TRIAL OR
LOAN OF PRODUCTS SHOULD BE USED IN PLACE OF THIS AGREEMENT.

The Recipient (you) and International Business Machines Corporation (IBM) agree
that the following terms and conditions apply when IBM loans you equipment and
programs including associated user manuals and similar documentation (Loaned
Items).  Loaned Items may also be referred to as Loaned Equipment or Loaned
Programs, as applicable.

1. ASSOCIATED CONTRACT DOCUMENTS
    The Attachment to this Agreement (Attachment) lists the Loaned Items and
specifies any additional terms and conditions.  A revised Attachment sets forth
any additions or deletions to the listed Loaned Items and any changes to the
terms and conditions.  Your continued use of the Loaned Items or acceptance of
additional Loaned Items after your receipt of a revised Attachment will
constitute your acceptance of such revised Attachment.

    When the loan is made in conjunction with a referenced Agreement, IBM will
specify the Reference Agreement Number.  In this event, the referenced Agreement
will describe the purpose of the loan.  Otherwise, the purpose of the loan is
specified below (Purpose of Loan).

2. TERM AND TERMINATION
    This Agreement ends on the earliest of 1) the specified Agreement
Expiration Date, 2) the date this Agreement is terminated in accordance with
this Section, or 3) the date the referenced Agreement, if any, is terminated. 
The Agreement Expiration Date may only be extended by IBM's issuance and your
acceptance of a revised Attachment specifying such later Date.
    You may terminate this Agreement by providing written notice to IBM.  If
you fail to meet any of your obligations under this Agreement or the referenced
Agreement, IBM may terminate this Agreement by giving written notice to you,
indicating the effective date of termination.

3. LOAN PERIOD
    IBM will provide the Loaned Items to you on or about the Estimated Delivery
Date(s) specified in the Attachment.  IBM provides the Estimated Delivery
Date(s) to you for planning purposes only.  The Loan Period for each Loaned Item
will extend from the actual date IBM delivers the Loaned Item(s) to you, until
the earliest of:
    a)   the applicable Return Date specified in the Attachment or revised
         Return Date specified in a revised Attachment;

- --------------------------------------------------------------------------------

PAGES 2 AND 3 AND 1 ATTACHMENT PAGE(S) ARE ALSO PART OF THIS AGREEMENT.   The
parties acknowledge that they have read this Agreement, understand it, and agree
to be bound by its terms and conditions.  Further, they agree that the complete
and exclusive statement of the agreement between the parties relating to the
Loaned Items provided hereunder consists of 1) this Agreement, 2) its
Attachment(s) and 3) the referenced Agreement, if any, including those effective
in the future.  This statement of the agreement supersedes all proposals or
other prior agreements, oral or written, and all other communications between
the parties relating to the Loaned Items provided hereunder.

International Business Machines        Recipient's name:
Corporation                            U.S. Computer Services
Armonk, New York 10504                 d/b/a CableData
By                                     By
  ----------------------------------     -----------------------------------
         Authorized Signature                    Authorized Signature

Name (type or print):                  Name (type or print):

Date:  January 10, 1992                Date:  January 10, 1992

This Agreement number:                 Reference Agreement number:
                                       Strategic Alliance Agreement
IBM Office number:                     Recipient's Customer number:

IBM Office address:                    Recipient's address:
 520 Capitol Mall                      2969 Prospect Park Drive
 Sacramento, CA 95814                  Rancho Cordova, CA 95670

Agreement Expiration Date:
 January 10, 1998, subject to year to year renewals
Purpose of Loan (TO BE COMPLETED ONLY IF NO REFERENCED AGREEMENT):

                                     Page 1 of 3

<PAGE>

    b)   the date you acquire i) title to the Loaned Equipment or ii) a
         continuing license to the Loaned Program, should such acquisition or
         licensing be available to you under Section 13; or
    c)   the date this Agreement ends.

4. AUTHORIZED USE
    IBM provides Loaned Items to you solely for use in accordance with the
terms of this Agreement and for the purpose(s) described either in this
Agreement or in the referenced Agreement (Authorized Use). There are no charges
for Authorized Use of the Loaned Items. You may not use the Loaned Items for
any other purposes.

5. OWNERSHIP AND LICENSE
    IBM or a third party retains title to all Loaned Items.  You may not
transfer Loaned Items to anyone else.  For Loaned Programs which are not subject
to another supplier's or publisher's license agreement, IBM grants you a
license to use, store, modify and make sufficient copies to support your
Authorized Use under this Agreement.  Such copies will be deemed to be Loaned
Items.  For Loaned Programs which are subject to another supplier's or
publisher's license agreement, however, the terms and conditions of that
supplier or publisher are passed to you through IBM.  Such terms and conditions
will be shipped with the Loaned Program.  Any authorized copies made by you will
be deemed to be Loaned Items.

6. LICENSED INTERNAL CODE
    If the Loaned Equipment contains Licensed Internal Code (Code), so
identified by IBM, IBM grants you a license only to execute such Code to enable
the Loaned Equipment to perform in accordance with IBM's official published
specifications.  You may not reverse assemble, reverse compile, decode,
translate, or make any other copies of the Code.  You must return the original
copy of the Code to IBM at the conclusion of the Loan Period.

7. DELIVERY AND INSTALLATION
    IBM will deliver the Loaned Items to the location(s) specified in the
Attachment.
    You will 1) set-up all Loaned Equipment IBM designates as Customer Set-Up,
2) install all non-IBM equipment and 3) install all Loaned Programs.
    IBM will be responsible for the installation of all other Loaned Items. 
Installation by IBM will be during IBM's normal business hours.

8. RISK OF LOSS OR DAMAGE
    IBM relieves you of the risk of loss of, or damage to, all Loaned Items,
except for loss or damage resulting from your breach of this Agreement
including use other than Authorized Use.

9. SECURITY
    You will provide, at no cost to IBM, adequate security to protect the
Loaned Items from theft, damage or misuse.
    You will use reasonable care in the use of all Loaned Items.  You will
provide an operating environment for the Loaned Items consistent with the
related user documentation.
    You will keep the Loaned Items at the location(s) specified in the
Attachment.  You will not move the Loaned Items to another location without
IBM's prior written approval.

10. SERVICE AND SUPPORT
    IBM will use reasonable efforts to provide or arrange for service and
support to cause the Loaned Items to operate in accordance with applicable
published specifications.  Such service and support will be without charge.
    You will permit IBM personnel full, free and safe access to your
facilities, during normal business hours, for the purpose of inspection,
preventive maintenance service or remedial maintenance service.

11. ALTERATIONS AND ATTACHMENTS
    An alteration to Loaned Equipment may be made only upon IBM'S prior written
approval.  An attachment to Loaned Equipment may be made without notice to IBM.
    You will remove any alteration or attachment and restore Loaned Equipment
to its unaltered condition before its return to IBM or upon IBM's notice to you
that the alteration or attachment creates a safety hazard or renders maintenance
of the Loaned Equipment impractical.

12. CHANGES
    IBM may make substitutions for Loaned Items or may provide additional items
to you during the term of the Agreement.  Such additions or deletions will be
specified in a revised Attachment.

13. DISPOSITION OF LOANED ITEMS

RETURN TO IBM
    You will return the Loaned Equipment to IBM at the end of Loan Period,
except as may be provided for in this Section.  You will return the Loaned
Equipment to IBM in the same condition as when delivered to you, reasonable wear
and tear excepted.
    You will return the original and all copies of the Loaned Programs at the
end of the Loan Period, except as may be provided for in this Section.
    You will permit IBM personnel access during IBM's normal business hours to
allow IBM to remove the Loaned Items.

ACQUISITION AND CONTINUED LICENSING
    IBM will determine the availability of Loaned Equipment for your
acquisition and Loaned Programs for your continued licensing beyond the
applicable Loan Period.  You must inform IBM, prior to the end of the applicable
Loan Period, of your interest in the acquisition of specific Loaned Equipment 
or the continued licensing of specific Loaned Programs. IBM will then notify you
in writing either 1) of the terms and conditions under which you may acquire
such Loaned Equipment or continue to license such Loaned Programs or 2) that the
Loaned Items are not available for acquisition or continued licensing.
    Purchase of Loaned Equipment will be governed by the provisions of the IBM
Customer Agreement and its applicable Attachments (or any equivalent agreement
signed by both of us).
    Continued licensing of Loaned Programs will be governed by the provisions
of the applicable IBM license agreement or another supplier's or publisher's

                                     Page 2 of 3

<PAGE>

license agreement. IBM will identify to you the applicable agreement which 
governs such licensing.

14. DISCLAIMER OF WARRANTY

   IBM PROVIDES LOANED ITEMS ON AN "AS IS" BASIS. IBM MAKES NO WARRANTY, 
EXPRESS OR IMPLIED, WITH RESPECT TO SUCH ITEMS, INCLUDING THE IMPLIED 
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

15. PATENTS AND COPYRIGHTS

   If the operation of a Loaned Item becomes, or IBM believes is likely to 
become, the subject of a claim that it infringes a patent or copyright in the 
United States or Puerto Rico, you will permit IBM, at its option and expense, 
either to secure the right for you to continue using the Loaned Item or to 
replace or modify it so that it becomes noninfringing. However, if neither of 
the foregoing alternatives is available on terms which are reasonable in 
IBM's judgement, you will return the Loaned Item upon IBM's written request.

   IBM will have no obligation with respect to any such claim based upon your 
modification of IBM equipment, programs or programming or their combination, 
operation or use with any non-IBM apparatus, data or programs.

   IBM will not have any liability regarding patent or copyright infringement 
for non-IBM Loaned Items.

   This Section states IBM's entire obligation to you regarding infringement 
or the like.

16. CONFIDENTIAL INFORMATION

   The parties agree that all information exchanged hereunder will be 
nonconfidential. If the loan requires the exchange of confidential 
information or includes an unannounced IBM product, such loan will also 
require that you and IBM enter into a separate confidentiality agreement.

17. LIMITATION OF REMEDIES

   IBM's entire liability and your exclusive remedy for actual damages from 
any cause whatsoever relating to the subject matter of this Agreement will be 
limited to the amount of $25,000. This limitation will apply, except as 
otherwise stated in this Section, regardless of the form of action, whether 
in contract or in tort, including negligence. This limitation will not apply 
to claims by you for bodily injury or damage to real property or tangible 
personal property for which IBM is legally liable.

   In no event will IBM be liable for any lost profits, lost savings, 
incidental damages, or other economic consequential damages, even if IBM has 
been advised of the possibility of such damages. In addition, IBM will not be 
liable for any damages claimed by you based on any third party claim.

   In no event will IBM be liable for any damages caused by your failure to 
perform your responsibilities.

18. GENERAL

   You may not assign this Agreement without IBM's prior written consent. Any 
attempted assignment without such consent is void.

   Loaned items are to be installed only in the United States or Puerto Rico.

   IBM will pay destination charges, both from and to IBM-designated 
locations, for each Loaned Item shipped in accordance with IBM's then current 
shipping practice. You will pay any rigging charges. You will furnish all 
labor for unpacking and packing except as IBM otherwise specifies or when 
performed at an IBM-designated location.

   IBM may provide services described in this Agreement by using IBM-selected 
independent contractors.

   Neither party is responsible for failure to fulfill its obligations under 
this Agreement due to causes beyond its control.

   Neither party may bring an action, regardless of form, arising out of this 
Agreement more than two years after the cause of action arose.

   In the event of the termination or expiration of this Agreement, the 
provisions of this Agreement which by their nature extend beyond the 
expiration or termination of this Agreement shall remain in effect beyond such 
expiration or termination until fulfilled.

   If there is a conflict between this Agreement and an Attachment, the terms 
and conditions of the Attachment will prevail. Except as modified by an 
Attachment, the terms of this Agreement remain in full force and effect. The 
terms of any Attachment not inconsistent with a subsequent Attachment remain 
in full force and effect.

   The laws of the State of New York govern this Agreement.

                                Page 3 of 3
<PAGE>
                                Attachment to
                      Equipment and Program Loan Agreement

Equipment to be covered by Agreement:

     (i) One IBM RISC System/6000 Model 540 server configured with 64MB of 
         RAM, 3GB of disk, one 6250 BPI 9-track tape drive, one 8mm 
         cartridge tape, 24 async ports, one async terminal as a system 
         console, one dot matrix printer as a system logger, a CD-ROM 
         player, a 10Base-T ethernet connection and two 8PPM laser printers 
         for use in El Dorado Hills, California.

    (ii) Four IBM RISC System/6000 Model 320H systems, each configured with 
         64MB of RAM, 1GB of disk, a CD-ROM player, a 100MB cartridge tape, 
         a 10Base-T ethernet connection, and a 19-inch monochrome display 
         with keyboard and mouse. One of these machines is for use in Leeds, 
         UK, the remaining three are for use in El Dorado Hills, California.

   (iii) Eleven X-terminals, each with a 19-inch monochrome display, 
         keyboard, mouse, a 10Base-T ethernet connection, and 4MB of RAM 
         for use in El Dorado Hills, California.

    (iv) Thirteen X-terminal emulator software packages for DOS PCs to 
         connect to the servers. Two of these emulators are for PCs in 
         Leeds, UK, the remaining eleven are for use in El Dorado Hills, 
         California.

     (v) Software for items (i) and (ii) above to allow full C and SQL 
         development in a networked X windows environment.

    (vi) Addresses for delivery and installation (at IBM's sole expense) of 
         above equipment.

         El Dorado Hills address:
            5272 Robert J. Mathews Parkway
            El Dorado Hills, CA 95630

         Leeds, UK address:
            Arlington Business Centre
            Millshaw Park
            Leeds  LS11 OLT  England, UK

  (vii)  IBM will provide upgrades to system software and hardware as new 
         versions become available.

                                   -23-
<PAGE>

                               EXHIBIT F-2

DATA BASE: ALET -                                                    Page:  1

- -------------------------------------------------------------------------------

NUMBER   391-068
DATE     910514
CATEGORY GD70, GD00
TYPE     Marketing
TITLE    IBM RISC SYSTEM/6000 DEVELOPER DISCOUNT PROGRAM
ABSTRACT     The IBM RISC System/6000 (TM) Developer Discount Program (formerly 
          the RISC System/6000 Software Development Program, described in 
          Marketing Announcement 390-016, dated February 15, 1990) now 
          includes selected hardware developers. The new program also updates 
          the list of IBM hardware and software products eligible for the 
          Developer Discount Program.
              This program provides eligible customers with the opportunity 
          to acquire workstations, AIX (R) Development Toolkits, selected 
          peripherals, and licensed RISC System/6000 programs at a 
          substantial discount. Eligible customers include selected hardware 
          and software developers, and selected IBM Academic Information 
          Systems (ACIS) application authors.
              IBM reserves the right to modify or withdraw this offering at 
          any time. No other discount or promotional offering can be combined 
          with this program.
           (TM) Trademark of International Business Machines Corporation.
           (R)  Registered trademark of International Business Machines 
                Corporation.

<PAGE>

DATA BASE: ALET - IBM Internal Use Only                                 Page:  2

IMKTG    MARKETING INFORMATION
         MARKETING CHANNELS
         o  IBM US Market Operations -- Direct
         MARKETING STRATEGY
            This program is intended to increase the availability of quality 
         products by providing an attractively priced RISC System/6000 
         development offering to selected hardware and software developers, 
         and selected ACIS application authors.
         MARKETING ACTION REQUIRED
            Marketing representatives should become familiar with this 
         program and encourage the participation of qualifying developers.
IADMIN   ADMINISTRATIVE INFORMATION
         PROGRAM ELIGIBILITY: Customers must be approved by Software Vendor 
         Operations. Approvals will be limited to US-based developers who 
         agree to develop and market (or make available) RISC System/6000 
         hardware or software products.
            To initiate a request for a Developer Discount, submit a 
         completed SVDDPNOM form, which is available on EZFORMS. For 
         additional information, send a PROFS (R) note to ATLVMS/SVDDP. 
         (R) Registered trademark of International Business Machines 
             Corporation.
         CONTRACT ADMINISTRATION: Each new approved developer  must sign the
         IBM Customer Agreement Attachment for IBM RISC System/600 Developer 
         Discount (Z125-4740), and the IBM Customer Agreement Addendum for the
         IBM RISC System/6000 Developer Discount (Z125-4741). Upon completion 
         of development, the developer must sign the IBM Customer Agreement 
         Certification of Compatibility with the IBM RISC System/6000
         (Z125-4743).
         ORDERING INFORMATION
            When ordering the eligible products under this program, follow 
         the normal ordering instructions and use Contract Number 44871.
            This special contract number will enable the program orders to be 
         processed at the stated discount. If the special contract number 
         was omitted at order entry, add it by using MODIFY prior to 
         shipment or PURPREP after shipment but prior to installation.
            Eligible products are listed in the Exhibit for IBM RISC 
         System/6000 Developer Discount (Z125-4742) and orders are based on 
         a completed Addendum for IBM RISC System/6000 Developer Discount 
         (Z125-4741) that is signed by the customer.
         ATTACHMENT INFORMATION
         The following are related to this announcement letter:
         -  391-068-1A*  Z125-4740 IBM Customer Agreement Attachment for IBM 
            RISC System/6000 Developer Discount
         -  391-068-1B*  Z125-4741 IBM Customer Agreement Addendum for IBM 
            RISC System/6000 Developer Discount
         -  391-068-1C*  Z125-4742 IBM Customer Agreement Exhibit for IBM RISC 
            System/6000 Developer Discount
         -  391-068-1D*  Z125-4743 IBM Customer Agreement Certification of 
            Compatibility with the IBM RISC System/6000
            * This item may be printed on your DAWN printer via either of the 
         following two methods:
         1. While browsing this announcement letter on HONE, enter the

<PAGE>

DATA BASE: ALET - IBM Internal Use Only                              Page:  3

            fastpath name "DAWNHOST LIST" (to allow selective printing from 
            list) or "DAWNHOST ALL" (to print all asterisked items for this 
            letter) at the HONE entry prompt arrow.
         2. Go to the DAWN system in your branch and choose the menu option 
            for Announcement Letter attachments.
<PAGE>

DATA BASE : ALET -                                                  Page:     4


OVERVIEW  DESCRIPTION
            Selected hardware and software developers, and selected 
          ACIS-approved faculty/researcher application authors may acquire with 
          selected peripherals and licensed RISC System/6000 programs, under 
          the terms and conditions of the IBM Customer Agreement Attachment for 
          IBM RISC System/6000 Developer Discount at a 50% discount.
            For each development machine purchased, the developer may select 
          RISC System/6000 peripherals at a 50% discount. In addition, for 
          each machine obtained, one copy of each RISC System/6000 program on 
          the attached list may be acquired at a 50% discount.
            Components of the RISC System/6000 family eligible for this 
          program are provided in the attached IBM RISC System/6000 Developer 
          Discount Program Machines and Licensed Programs List, which has 
          been updated to include the following products:
          - Additional RISC System/6000 processors: Models 32H, 550 and 950
          - Upgrade RISC System/6000 processors: Model 320 to 32E, Model 520 
            to 530, Model 540 to 55S and Model 930 to 95E
          - Additional peripherals: IBM 7202 Model 900 Expansion Rack, and 
            IBM 7235 Models 1 and 2 POWERgraphics GTO
          - IBM 9334 Model 10 Drawer Expansion Unit
          - IBM 9334 Model 500 Deskside Expansion Unit
          - IBM 7010 Model 130 Xstation
          - IBM 8515 Model 1 Color Display, and IBM 8507 Model 1 Monochrome 
            Display
          - Additional programs, including:
            - Selected modules of PROFESSIONAL CADAM (1) Version 3
            - AIX XL FORTRAN Compiler/6000 Version 2 and AIX XL FORTRAN Run 
              Time Environment/6000 Version 2.
            To obtain additional information regarding program eligibility, 
          contact your marketing representative.
            ACIS reserves the right to select, from a nominated pool of 
          candidate applications, only those applications that ACIS wants 
          supported, and thereby selectively offer the faculty/researcher 
          application author the opportunity to participate in the RISC
          System/6000 Developer Discount Program.
            Hardware vendors will be selected based on their ability to 
          provide products that enhance the overall marketability of the RISC 
          System/6000 product family, with emphasis on products not currently 
          part of the RISC System/6000 offering.
          (1) Registered trademark of CADAM, INC.
CUSTINFO  PUBLICATIONS
            Please refer to the individual announcements for publications 
          concerning the hardware, licensed programs, and peripherals in this 
          offering.
          EDUCATION SUPPORT
            Developers wishing to subscribe to a technical quarterly 
          publication, THE AIXPERT, should call 800-627-8363.
            Other users may subscribe by ordering bill-of-forms number 
          GBOF-1199 from the Systems Library Subscription Service (SLSS).
          Users without electronic access to SLSS may subscribe using SLSS
          order number G120-1816 and specify GBOF-1199 as the publication


<PAGE>

DATA BASE : ALET -                                                 Page:     5


          number.
ORDERING  TERMS AND CONDITIONS
          - The developer must agree to use the products acquired for each 
            development system to develop, test, demonstrate and/or maintain
            hardware and software products developed under this program for a
            period of 12 months following the shipment of the IBM products.
          - Upon completion of such development, the developer will provide to
            IBM the IBM Customer Agreement Certification of Compatibility with
            the IBM RISC System/6000 (Z125-4743), and announce and make
            available a product that is compatible with the RISC System/6000.
          - Products acquired under this development program are intended 
            primarily for development purposes and not for resale, sub-lease, or
            rental for a period of 12 months following the shipment of the IBM
            product.
          - Up to ten Xstation terminals may be purchased with each system.

            IBM reserves the right to limit the number of RISC System/6000
          systems available to each development establishment.
          CONTRACT INFORMATION: The RISC System/6000 Software Developer's
          Agreement has been replaced with a new IBM Customer Agreement
          Attachment for IBM RISC System/6000 Developer Discount, to
          accommodate program changes. This new contract applies to 
          approved hardware and software vendors, and approved ACIS customers.

            The new documents are:

          - (Z125-4740) IBM Customer Agreement Attachment for IBM RISC 
             System/6000 Developer Discount

          - (Z125-4741) IBM Customer Agreement Addendum for IBM RISC 
            System/6000 Developer Discount

          - (Z125-4742) IBM Customer Agreement Exhibit for IBM RISC 
            System/6000 Developer Discount

          - (Z125-4743) IBM Customer Agreement Certification of Compatibility 
            with the IBM RISC System/6000.

          Customers currently under the terms of the Software Developer's 
          Discount Agreement (Z125-4505) will not be required to migrate to 
          the new format unless they apply and are approved for the new 
          hardware terms and conditions.

            On request by the developer, products newly added to the RISC 
          System/6000 Developer Machines and Licensed Programs List may be 
          added to a current contract.

            The following contracts are withdrawn with this announcement:

          - (Z125-4505) IBM RISC SYSTEM/6000 Software Developer's Discount 
            Agreement

          - (Z125-4506) Schedule, IBM RISC System/6000 Software Development 
            Program

          - (Z125-4507) Attachment I, Certification of Compatibility with the 
            IBM RISC System/6000

          - (Z125-4527) IBM RISC System/6000 Higher Education Software 
            Developer's Discount Agreement

<PAGE>

DATA BASE : ALET -                                                 Page:     6


          - (Z125-4528) Attachment I, Certification of Compatibility with the 
            IBM RISC System/6000

          - (Z125-4529) IBM RISC System/6000 Software Development System 
            Schedule.

     IBM RISC SYSTEM/6000 DEVELOPER DISCOUNT PROGRAM MACHINES AND LICENSED
                                 PROGRAMS LIST

            Eligible Hardware - 50% Discount
          IBM RISC System/6000 7012 Model 320
          IBM RISC System/6000 7012 Model 32H
          IBM RISC System/6000 7013 Model 520
          IBM RISC System/6000 7013 Model 530
          IBM RISC System/6000 7013 Model 540
          IBM RISC System/6000 7013 Model 550
          IBM RISC System/6000 7015 Model 930
          IBM RISC System/6000 7015 Model 950
          IBM RISC System/6000 7016 Model 730
            Eligible Model Upgrades - 50% Discount
          IBM RISC System/6000 7012 Model 320 to 32E
          IBM RISC System/6000 7013 Model 520 to 530
          IBM RISC System/6000 7013 Model 540 to 55S
          IBM RISC System/6000 7015 Model 930 to 95E
            Eligible Peripherals - 50% Discount
          IBM 5081 Model 16 Graphics Display
          IBM 5081 Model 19 Graphics Display
          IBM 6091 Model 19 Color Display
          IBM 6091 Model 23 Color Display
          IBM 6094 Model 10 Dials
          IBM 6094 Model 20 Lighted Programmable Functional Keyboard
          IBM 7202 Model 900 Expansion Rack
          IBM 7203 Model 001 External Portable Disk Drive
          IBM 7204 External Disk Drive Model 320
          IBM 7207 Model 001 150MB External 1/4-Inch Cartridge Tape Drive
          IBM 7208 Model 001 2.3GB External 8mm Tape Drive
          IBM 7210 Model 001 External CD-ROM Drive
          IBM 7235 Models 001, 002 POWERgraphics GTO
          IBM 8503 Model 001 Personal System/2 (R) Monochrome Display
          IBM 8507 Model 001 Personal System/2 Monochrome Display
          IBM 8508 Model 001 Personal System/2 Monochrome Display
          IBM 8512 Model 001 Personal System/2 Color Display
          IBM 8513 Model 001 Personal System/2 Color Display
          IBM 8514 Model 001 Personal System/2 Color Display
          IBM 8515 Model 001 Personal System/2 Color Display
          IBM 9334 Model 10 Drawer Expansion Unit
          IBM 9334 Model 500 Deskside Expansion Unit
          IBM 9348 Model 012 External 1/2-Inch 9-Track Tape Drive
          IBM 7010 Model 120 Xstation
          IBM 7010 Model 130 Xstation
            Eligible Licensed Programs - 50% Discount
          AIX Version 3 for RISC System/6000 (5756-030)
          AIX Personal graPHIGS (TM) Programming Interface/6000 Version 2 
          (5601-230)
          AIX XL FORTRAN Compiler/6000 (5601-248)

<PAGE>

DATA BASE : ALET -                                                 Page:     7


          AIX XL Pascal Run Time Environment/6000 (5601-251)
          AIX Network Management/6000 (5601-253)
          AIX XL Pascal Compiler/6000 (5601-254)
          AIX 3278/79 Emulation/6000 (5601-256)
          AIXwindows (TM) Environment/6000 (5601-257)
          AIX VS COBOL Compiler/6000 (5601-258)
          AIX VS COBOL Run Time Environment/6000 (5601-259)
          AIX 3270 Host Connection Program/6000 (5601-260)
          AIX Personal Computer Simulator/6000 (5601-263)
          AIX XL FORTRAN Run Time Environment/6000 (5601-266)
          AIX System Network Architecture Services/6000 (5601-287)
          AIX Computer Graphics Interface Toolkit/6000 (5601-386)
          AIX Xstation Manager (TM)/6000 (5601-457)
          AIX Ada/6000 (5706-291)
          AIX Ada Run Time Environment/6000 (5706-294)
          PROFESSIONAL CADAM (1) 3D Surface Design (5756-091)
          PROFESSIONAL CADAM Manufacturing System (5756-092)
          PROFESSIONAL CADAM Machining Center (5756-093)
          PROFESSIONAL CADAM Interactive Design (5756-094)
          PROFESSIONAL CADAM Access IUE (5756-095)
          PROFESSIONAL CADAM Interactive Solids Design (5756-096)
          AIX XL FORTRAN Compiler/6000 Version 2 (5765-018)
          AIX XL FORTRAN Run Time Environment/6000 Version 2 (5765-019)
            Notes:
            Developers may purchase a maximum of one of each unique 
          peripheral per development system. However, with Xstation 
          terminals, a maximum of ten per system may be purchased, and a 
          maximum of one display per Xstation may be purchased.
            Development discounts will be applied to the eligible hardware, 
          licensed programs, and peripherals ordered as part of the initial 
          installation. Within the limitations described, peripherals, 
          licensed programs and hardware MESs may be ordered after the 
          initial purchase and receive the developer discount. However, these 
          additional purchases will be restricted to the terms of the 
          Attachment for IBM RISC System/6000 Developer Discount for a period 
          of 12 months.
            For programs licensed under the primary license charge/annual 
          license charge option, the 50% discount applies to the primary 
          license charge only. Recurring charges, such as ESS and annual 
          license charge, do not qualify for the 50% discount.
            Software MESs are not eligible for the 50% discount.
          (1) Registered trademark of CADAM, INC.
          (TM) Trademark of International Business Machines Corporation.
          (R) Registered trademark of International Business Machines 
          Corporation.


                          - - - END OF PRINTOUT - - -

<PAGE>

                      SOFTWARE VENDOR DEV. DISCOUNT PROG.

                 NOMINATION FORM            DATE: ___/___/___

              SYSTEM TYPE: _______________ (9370 or AS/400 or RS/6000)
              For RS/6000: _______________ (ACIS or CASE or SV)

I.  NOMINATING BRANCH OFFICE DATA

    B/O Name and Number ___________________________________ / _______________
    Address             _____________________________________________________
                        _____________________________________________________
                        _____________________________________________________
    Rep Name            _____________________________________________________
    Rep Telephone       (____) ____ - _____              T/L... 8/___ - _____
    Rep Node/UserID     ________ / ______                Rep Serial No ______
    AA Name             _____________________________________________________
    AA Telephone Number (____) ____ - _____              T/L... 8/___ - _____
    AA Node(Userid)     ________ / ______

    Who from IBM is answering these questions (name, title, tele/tie, 
    Node/UserID?) ___________________________________________________________
    _________________________________________________________________________
    _________________________________________________________________________

II. SOFTWARE VENDOR DATA

   Organization Name   ______________________________________________________
        Address        ______________________________________________________
                       ______________________________________________________
                       ______________________________________________________
        Contact        ______________________________________________________
        Title          ______________________________________________________
        Tel. No.       ______________________________________________________
   Establishment no.   _________________   Customer no.  ____________________


   Current IBM Marketing Relationship:  _____________________________________
                                 (CUSTOMER, AS, IAS, IR, NONE, ETC.)
   Competitive Marketing Relationship:  _____________________________________
                                         (Competitive IR, MAP, etc.)
   Industry Code:  __________________  SIC Code:  ___________________________
   End User Industry (For what industry is the application code written?)
   __________________________________________________________________________
   Any dispute or litigation with IBM?  _____________________________________
   __________________________________________________________________________

   How long has this organization been in the software development 
   business?  _______________________________________________________________
   Number of employees?  ____________________________________________________
   Does this organization have a Marketing Staff?  __________________________
                                             How many?  _____________________
   Does this organization have a Support/Development staff?  ________________
                                                 How many?  _________________
   How is support delivered (Hotlines, Info. Data Bases, 
   Customer Calls, Electronic Mail etc.)?  __________________________________
   Is there a charge for Software Maintenance Support?  _____________________

<PAGE>

    How is it calculated (straight charge, % of revenue, etc.)?

    ----------------------------------------------------------------------------
    Organization of revenue for the last two years: 1989
                                                          ----------------------
                                                    1990
                                                          ----------------------
    Today, what % of revenue is from:
         selling APPLICATION PACKAGES?
                                              ---------------------
         what % from INSTALLATION SERVICES?
                                              ---------------------
         what % from MODIFYING/CUSTOMIZING?
                                              ---------------------
         what % from MAINTENANCE/SUPPORT?
                                              ---------------------
    What is the total install base (how many customers)?
                                                         ----------------------
    What other business activity is the organization engaged in?

     ---------------------------------------------------------------------------
    What % of revenue does the activity produce?
                                                 ------------------------------

III. VENDOR PRODUCT DATA

    Provide the name and a brief description of the available software
    application(s) currently being sold or distributed by this organization:

    APPLICATION NAME              DESCRIPTION

    -------------------------     ---------------------------------------------
    -------------------------     ---------------------------------------------
    -------------------------     ---------------------------------------------

    Provide the last 12 months' sales or installations and the total customer
    installed base for each application described above:

    APPLICATION NAME         LAST 12 MOS.             TOTAL INSTALLED BASE

    --------------------     ------------------       -------------------------
    --------------------     ------------------       -------------------------
    --------------------     ------------------       -------------------------

    What is the current hardware platform(s)?
                                              ---------------------------------
    What is the current operating system(s)?
                                              ---------------------------------
    How many systems (IBM or Competitive) have been sold in 1988/89 as a result
    of this application software being available?
                                                  -----------------------------
    Explain the length of the conversion schedule.

    ---------------------------------------------------------------------------
    ---------------------------------------------------------------------------
    ---------------------------------------------------------------------------
    If this is an ACIS RS/6000 nomination, described the planned distribution
    method and end user support that will be provided.
     
     ---------------------------------------------------------------------------
     ---------------------------------------------------------------------------

    Hardware and Software required for conversion effort (specify System Type
    and Model)
               -----------------------------------------------------------------
     ---------------------------------------------------------------------------
    If RS/6000, How many systems are required (MAXIMUM 10?)
                                                             -------------------

<PAGE>

    In addition to submitting a signed hardcopy of this nomination form, please
    provide a development plan for the application(s) that this Vendor intends
    to port and/or develop for the IBM platform.  Include the following:

    -    Functional description of the application and a brief discussion about
         this application(s) offering uniqueness.

    -    Estimated size of the application(s) in the lines of code.

    -    Hardware and software to be ordered, include HONE configurator
         printout.

    -    Development schedule to include:

              -start date
              -design period
              -coding period
              -testing period
              -finish date
              -date application commercially available

    -    Please attach a copy of the software vendors marketing literature with
         this nomination and mail to:

              IBM Corporation -- HO9R1
              Software Vendor Operations
              4111 Northside Parkway
              Atlanta, GA  30327-3098

<PAGE>

IBM CUSTOMER AGREEMENT

ADDENDUM FOR IBM RISC SYSTEM/6000 DEVELOPER DISCOUNT
- --------------------------------------------------------------------------------

Revised Addendum (1)     yes     no                               Page    of
                    -----   -----                                      ---  ---
                                         Education Institution
                                                               -----
Date Attachment accepted:                Hardware/Software Vendor
                                                                  -----

Development Location address:            IBM Customer Agreement number:

IBM Office address:                      Addendum number:

                                         IBM Office number:

Number of Development Systems            Customer number:
Previously Ordered (2):
                        -----


Type/Model or
Program Number              Description              Quantity        Discount
- --------------------------------------------------------------------------------



















- --------------------------------------------------------------------------------
(1) IF THIS IS A REVISED ADDENDUM,       (2) YOU MAY ONLY ORDER A MAXIMUM OF 10
    YOU MAY ONLY ORDER DEVELOPMENT           DEVELOPMENT SYSTEMS PER DEVELOPMENT
    SYSTEMS DURING THE TWELVE MONTHS         LOCATION. A SYSTEM CONSISTS OF AN
    AFTER WE ACCEPT YOUR SIGNED              IBM RISC SYSTEM/6000 PROCESSOR AND
    ATTACHMENT.                              ELIGIBLE PRODUCTS.


Both of us agree that the complete agreement between us about this transaction
consists of 1) this Transaction Document and 2) the IBM Customer Agreement and
its Attachment for IBM RISC System/6000 Developer Discount (or any equivalent
agreement signed by both of us).


AGREED TO:                               AGREED TO:
Customer name:                           International Business Machines
                                         Corporation
                                         Armonk, New York 10504


By ___________________________________   By ___________________________________
          Authorized signature                      Authorized signature

Name (type or print):                    Name (type or print):

Date:                                    Date:

Z125-4741-00 5/91

<PAGE>


IBM CUSTOMER AGREEMENT

EXHIBIT FOR IBM RISC SYSTEM/6000 DEVELOPER DISCOUNT
- --------------------------------------------------------------------------------
           ELIGIBLE HARDWARE                                   DISCOUNT

PROCESSORS:

  IBM RISC System/6000 7012 Model 320                             [*]
  IBM RISC System/6000 7012 Model 32H                             [*]
  IBM RISC System/6000 7013 Model 520                             [*]
  IBM RISC System/6000 7013 Model 530                             [*]
  IBM RISC System/6000 7013 Model 53H                             [*]
  IBM RISC System/6000 7013 Model 540                             [*]
  IBM RISC System/6000 7013 Model 550                             [*]
  IBM RISC System/6000 7015 Model 930                             [*]
  IBM RISC System/6000 7015 Model 950                             [*]
  IBM RISC System/6000 7016 Model 730                             [*]

MODEL CONVERSIONS:

  IBM RISC System/6000 7012 Model 320 to 32E                      [*]
  IBM RISC System/6000 7013 Model 520 to 530                      [*]
  IBM RISC System/6000 7013 Model 520 to 53E                      [*]
  IBM RISC System/6000 7013 Model 520 to 55E                      [*]
  IBM RISC System/6000 7013 Model 530 to 55E                      [*]
  IBM RISC System/6000 7013 Model 53H to 55E                      [*]
  IBM RISC System/6000 7013 Model 540 to 55S                      [*]
  IBM RISC System/6000 7015 Model 930 to 95E                      [*]

DISPLAYS:

  IBM 5081 Model 16 Graphics Display                              [*]
  IBM 5081 Model 19 Graphics Display                              [*]
  IBM 6091 Model 19 Color Display                                 [*]
  IBM 6091 Model 23 Color Display                                 [*]
  IBM 8503 Model 001 Personal System/2 Monochrome Display         [*]
  IBM 8507 Model 001 Personal System/2 Monochrome Display         [*]
  IBM 8508 Model 001 Personal System/2 Monochrome Display         [*]
  IBM 8512 Model 001 Personal System/2 Color Display              [*]
  IBM 8513 Model 001 Personal System/2 Color Display              [*]
  IBM 8514 Model 001 Personal System/2 Color Display              [*]
  IBM 8515 Model 001 Personal System/2 Color Display              [*]

MAXIMUM QUANTITY = ONE DISPLAY UNIT PER PROCESSOR.

STORAGE MEDIA:

  IBM 7203 Model 001 External Portable Disk Drive                 [*]
  IBM 7204 External Disk Drive Model 320                          [*]
  IBM 7207 Model 001 150 MB External                              [*]
    1/4-inch Cartridge Tape Drive
  IBM 7208 Model 001 2.3 GB External 8mm Tape Drive               [*]
  IBM 7210 Model 001 External CD-ROM Drive                        [*]
  IBM 9333 Model 10 High Performance Disk Subsystem               [*]
  IBM 9333 Model 500 High Performance Disk Subsystem              [*]
  IBM 9334 Model 10 Drawer Expansion Unit                         [*]
  IBM 9334 Model 500 Deskside Expansion Unit                      [*]
  IBM 9348 Model 012 External 1/2-inch 9-Track Tape Drive         [*]

MAXIMUM QUANTITY = ONE OF EACH ITEM LISTED PER PROCESSOR.


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


Z125-4742-01 11/91                                    Page 1 of 2

<PAGE>


           ELIGIBLE HARDWARE                                   DISCOUNT

PERIPHERALS:

  IBM 6094 Model 10 Dials                                         [*]
  IBM 8094 Model 20 Lighted Programmable                          [*]
    Functional Keyboard
  IBM 7202 Model 900 Expansion Rack                               [*]
  IBM 7235 Model 1 POWERgraphics GTO                              [*]
  IBM 7235 Model 2 POWERgraphics GTO                              [*]

MAXIMUM QUANTITY = ONE OF EACH ITEM LISTED PER PROCESSOR

X-STATION:

  IBM 7010 Model 120 Xstation                                     [*]
  IBM 7010 Model 130 Xstation                                     [*]

MAXIMUM QUANTITY = 10 XSTATIONS PER PROCESSOR.

FEATURES:

  All features for eligible hardware                              [*]


           ELIGIBLE PROGRAMS                                   DISCOUNT

  5601-230 AIX Personal graPHIGS Programming Interface/6000       [*]
  5601-248 AIX XL FORTRAN Compiler/6000                           [*]
  5601-251 AIX XL Pascal Run Time Environment/6000                [*]
  5601-253 AIX Network Management/6000                            [*]
  5601-254 AIX XL Pascal Compiler/6000                            [*]
  5601-256 AIX 3278/79 Emulation/6000                             [*]
  5601-257 AIXwindows Environment/6000                            [*]
  5601-258 AIX VS COBOL Compiler/6000                             [*]
  5601-259 AIX VS COBOL Run Time Environment/6000                 [*]
  5601-260 AIX 3270 Host Connection Program/6000                  [*]
  5601-263 AIX Personal Computer Simulator/6000                   [*]
  5601-266 AIX XL FORTRAN Run Time Environment/6000               [*]
  5601-287 AIX System Network Architecture Services/6000          [*]
  5601-386 AIX Computer Graphics Interface Toolkit/6000           [*]
  5601-457 AIX Xstation Manager/6000                              [*]
  5706-291 AIX Ada/6000                                           [*]
  5706-294 AIX Ada Run Time Environment/6000                      [*]
  5756-011 AIX X-Windows 3270 Emulator Version 1                  [*]
  5756-030 AIX Version 3 for RISC System/6000                     [*]
  5756-091 Professional CADAM 3D Surface Design                   [*]
  5756-092 Professional CADAM Manufacturing System                [*]
  5756-093 Professional CADAM Machining Center                    [*]
  5756-094 Professional CADAM Interactive Design                  [*]
  5756-095 Professional CADAM Access IUE                          [*]
  5756-096 Professional CADAM Interactive Soldis Design           [*]
  5765-018 AIX XL FORTRAN Compiler/6000                           [*]
  5765-019 AIX XL FORTRAN Run Time Environment/6000               [*]

MAXIMUM QUANTITY = ONE OF EACH LICENSED PROGRAM LISTED PER PROCESSOR.

Z125-4742-01 11/91                                  Page 2 of 2


<PAGE>


IBM CUSTOMER AGREEMENT

CERTIFICATION OF COMPATABILITY WITH THE IBM RISC SYSTEM/6000
______________________________________________________________________________

Name & Brief Description of Product:



Target End User Description:



Machines Required:



Programs Required:



Storage Required:

           Memory ____________     Disk ____________

Commercial Availability Date:



Contact Address & Telephone Number for Prospective User:



I certify that the above product will execute on, or attach to, the IBM RISC 
System/6000-TM- with the Machines, Programs, and storage requirements listed 
above. I grant IBM permission to publish this information in any form.



____________________________________       ___________________________________
           CUSTOMER NAME                                SIGNATURE


____________________________________       ___________________________________
               DATE                                    NAME & TITLE


- -TM- Trademark of International Business Machines Corporation
Z125-4743-00 5/91

<PAGE>

IV.  REVIEW & SIGNOFF

     This electronic form will automatically transmit to Software Vendor 
     Operations (SVO). Before this nomination will be considered, this form 
     must be reviewed and signed by the Branch Manager and a hardcopy must be 
     submitted, with the above mentioned development plan and marketing 
     literature.

     By signing the nomination form, the Branch Manager will certify that 
     this organization or individual is a legitimate software vendor.

     The Complementary Resources Marketing Manager (CRMM) must be informed of 
     this nomination and acknowledges this notification by signing this 
     nomination form.


     ____________________________________       ______________________________
     CRMM (Signature)                           Date


     ____________________________________
     Print/Type Name


     ____________________________________       ______________________________
     Branch Manager (Signature)                 Date


     ____________________________________
     Print/Type Name


     ____________________________________       ______________________________
     SVDDP Approval (Signature)                 Date


     C. M. Ellet
     Manager, Vendor Loan Programs
     Software Vendor Operations, Atlanta, GA



03/26/1991                    IBM Internal Use Only                     Page 4

<PAGE>

IBM CUSTOMER AGREEMENT                                                  [Logo]

______________________________________________________________________________


Thank you for doing business with us. We are committed to providing you with 
the highest quality Products and Services. If, at any time, you have any 
questions or problems, or are not completely satisfied, please let us know. 
Our goal is to do our best for you.

This IBM Customer Agreement (called the "Agreement") covers the major 
business transactions we may do with you, including:

     (A) sale of Machines;

     (B) license of Programs; and

     (C) provision of Services.

We also make several Options available to you concerning the Products and 
Services we provide under this Agreement, such as volume discounts.

This Agreement and its applicable Attachments and Transaction Documents are 
the complete agreement regarding these transactions, and replace any prior 
oral or written communications between us.

By signing below for our respective Enterprises, each of us agrees to the 
terms of this Agreement. Once signed, 1) any reproduction of this Agreement, 
an Attachment, or Transaction Document made by reliable means (for example, 
photocopy or facsimile) is considered an original and 2) all Products and 
Services you order under this Agreement are subject to it.



AGREED TO:                         AGREED TO:
Enterprise name:                   INTERNATIONAL BUSINESS MACHINES CORPORATION
                                   ARMONK, NEW YORK 10504



By ___________________________     By  ___________________________________
      Authorized signature                    Authorized signature


Name (type or print):              Name (type or print):

Date:                              Date:

Enterprise number:                 Agreement number:

Enterprise address:                IBM Office number:

                                   IBM Office address:



Z125-4575-00 1/91                  Page 1 of 23

<PAGE>


IBM CUSTOMER AGREEMENT

TABLE OF CONTENTS

______________________________________________________________________________

SECTION     TITLE                 PAGE   SECTION     TITLE                PAGE


PART 1 - GENERAL......................3  PART 4 - PROGRAMS..................14

 1.1   Definitions....................3   4.1   Grant of License............14
 1.2   Agreement Structure............4   4.2   License Details.............14
 1.3   Delivery.......................4   4.3   Distributed Features........15
 1.4   Electronic Communications......5   4.4   Additional License Copies...15
 1.5   Prices and Price Changes.......5   4.5   Program Testing.............15
 1.6   Invoicing, Payment, and Taxes..6   4.6   Program Packages............15
 1.7   Additional Charges.............6   4.7   Program Protection..........16
 1.8   Types of Service for Machines..6   4.8   Program Services............16
 1.9   Patents and Copyrights.........7   4.9   Variable-Charge Programs....16
 1.10  Limitation of Liability........7   4.10  License Termination.........16
 1.11  Mutual Responsibilities........8
 1.12  Your Other Responsibilities....8  PART 5 - SERVICES..................17
 1.13  Your Additional Rights.........9
 1.14  IBM Business Partners..........9   5.1   Maintenance Services........17
 1.15  Changes to the Agreement Terms.9   5.2   Continuing Support Services.18
 1.16  Agreement Termination..........9   5.3   Project Support Services....18
 1.17  Geographic Scope...............9   5.4   IBM Information Network and
 1.18  Governing Law..................9         Other Services..............20

PART 2 - WARRANTIES..................10  PART 6 - OPTIONS...................21

 2.1   The IBM Warranties............10   6.1   Volume Discounts............21
 2.2   Extent of Warranty............11   6.2   Maintenance Service Options.22
 2.3   Items Not Covered by Warranty.11   6.3   Payment Options.............22
                                          6.4   Special Options.............23

PART 3 - MACHINES....................12

 3.1   Title.........................12
 3.2   Risk of Loss..................12
 3.3   Production Status.............12
 3.4   Installation..................12
 3.5   Licensed Internal Code........13


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<PAGE>

IBM CUSTOMER AGREEMENT

PART 1 - GENERAL
______________________________________________________________________________

1.1  DEFINITIONS

     CUSTOMER-SET-UP MACHINE is an IBM Machine that you set up according to 
     our instructions.

     DATE OF INSTALLATION is the following:

       1. for a Machine --

          a. the business day after the day we install it or, if you defer 
             installation, make it available to you for installation;

          b. the second business day after the end of a Customer-set-up 
             Machine's standard transit allowance period. We will allocate a 
             reasonable transit allowance period; or

          c. the second business day after the arrival of a non-IBM Machine.

       2. for a Program, the latest of --

          a. the day after its testing period ends (this does not apply to 
             Program Packages);

          b. 10 days after we ship it; or

          c. the day, specified in a Transaction Document, on which we 
             authorize you to make an Additional License Copy or a copy
             of a Distributed Feature.

     DESIGNATED MACHINE is the Machine, that you identify to us by type/model 
     and serial (or plant order) number, on which you intend to use a Program
     for processing. When we specify that you do not have to provide this
     identification to us, the term "Designated Machine" means the single 
     Machine on which you may use the Program at any one time.

     ENTERPRISE is any legal entity (such as a corporation) and the 
     subsidiaries it owns by more than 50 percent. The term "Enterprise"
     applies only to the portion of the enterprise located in the United 
     States or Puerto Rico.

     MACHINE is a machine, its features, conversions, upgrades, elements, or 
     accessories, or any combination of them. The term "Machine" includes an 
     IBM Machine and any non-IBM Machine (including other equipment) that we 
     may provide to you.

     PRODUCT is a Machine or a Program.

     PROGRAM is the following, including features and any whole or partial 
     copies:

       1. machine-readable instructions;

       2. a collection of machine-readable data, such as a data base; and

       3. related materials, including documentation and listings, in any form.

     The term "Program" includes an IBM Program and any non-IBM Program that 
     we may provide to you. The term does not include Licensed Internal Code 
     or Materials.

     SERVICE is assistance or use of a resource (such as a network) we make 
     available to you.

     SPECIFICATIONS is a document that provides information specific to a 
     Product. For a Machine, we call the document "Official Published 
     Specifications." For a Program, we call it "Licensed Program
     Specifications" or "License Information."

     SPECIFIED OPERATING ENVIRONMENT is the Machines and Programs with which 
     a Program is designed to operate, as described in the Program's 
     Specifications.



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<PAGE>


1.2  AGREEMENT STRUCTURE

     ATTACHMENTS

     Some Products and Services have terms in addition to those we specify in
     this Agreement. We provide the additional terms in documents called
     "Attachments" which are also part of this Agreement. For example, we
     describe the additional terms of IBM Information Network Services in an
     Attachment. We make the Attachments available to you for signature.

     TRANSACTION DOCUMENTS

     For each order you place, we will provide to you the appropriate 
     "Transaction Documents" that confirm the specific details of your order.
     The following are examples of Transaction Documents, with examples of the 
     information they may contain:

     1. supplements (Machine quantity and type ordered, price, estimated
        shipment date, and warranty period);

     2. exhibits (eligible Products by category, discount schedules, and 
        available contract periods);

     3. addenda (selected contract-period duration, start date, and total
        quantity or revenue committed);

     4. statements of work (project schedule, responsibilities, and charges);
        and 

     5. invoices (item, quantity, price, amount due, and other typical invoice
        information).

     CONFLICTING TERMS

     If there is a conflict among the terms in the various documents those of an
     Attachment prevail over those of this Agreement. The terms of a Transaction
     Document prevail over those of both of these documents.

     OUR ACCEPTANCE OF YOUR ORDER

     A Product or Service becomes subject to this Agreement when we accept your
     order. We accept your order by doing any of the following:

     1. sending you a Transaction Document;

     2. shipping the Product; or 

     3. providing the Service.

     YOUR ACCEPTANCE OF ADDITIONAL TERMS

     You accept the additional terms in an Attachment or Transaction Document by
     doing any of the following:

     1. signing the Attachment or Transaction Document;

     2. using the Product or Service, or allowing others to do so; or 

     3. making any payment for the Product or Service.

1.3  DELIVERY

     We will use our best efforts to meet your delivery requirements for
     Products and Services you order, and will inform you of their status. We
     pay normal transportation charges for Products we ship to you.


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<PAGE>


1.4  ELECTRONIC COMMUNICATIONS

     Each of us may communicate with the other by electronic means. Both of us
     agree to the following for all electronic communications:

     1. an identification code (called a "USERID") contained in an electronic
        document is legally sufficient to verify the sender's identity and the
        document's authenticity;

     2. an electronic document that contains a USERID is a signed writing; and

     3. an electronic document, or any computer printout of it, is an original
        when maintained in the normal course of business.


     ELECTRONIC DATA INTERCHANGE

     We may provide Electronic Data Interchange (call"EDI") Options to you.
     Electronic invoicing and electronic payment are examples of these Options.
     When using EDI Options, each of us agrees:

     1. when a bank is involved, to pay our respective bank charges and to
        promptly notify the other of any changes to the bank payment process;
        and

     2. to promptly notify the other of any changes to the technology, process,
        or information upon which the EDI transactions are based.

     We will specify respective responsibilities for the EDI Option you choose.

1.5  PRICES AND PRICE CHANGES

     The following are the bases on which we may require the amount payable
     for a Product or Service to be paid, with an example of each:

     1. one-time (the price of a Machine);

     2. recurring (a monthly charge for Maintenance Services); or

     3. a combination of both (an initial charge and a monthly license charge
        for a Program).

     We will specify the amount and basis for the particular Product or Service.

     PRICE INCREASES

     We may increase recurring charges by giving you three months' written
     notice. An increase applies on the first day of the applicable invoice
     period on or after the effective date we specify in the notice.

     We may increase one-time charges and hourly rates without notice.
     However, an increase to one-time charges does not apply to you if 1) we
     receive your order before the announcement date of the increase and 2)
     one of the following occurs within three months after the announcement:

     1. we ship you the Product;

     2. with our authorization, you make an Additional License Copy of a
          Program or a copy of a Distributed Feature; or

     3. a Program's group-upgrade charge becomes due.

     PRICE DECREASES

     You receive the benefit of a decrease in charges for amounts which become
     due on or after the effective date of the decrease.


Z125-4575-00 1/91                                       Page 5 of 23
<PAGE>


1.6 INVOICING, PAYMENT, AND TAXES

     We invoice:

     1. recurring charges (other than usage charges) for a Program and for
        Maintenance Services in advance for the applicable invoice period;

     2. usage charges following the period in which you incur them; and 

     3. all other charges when or after you incur them.

     For a Product with a one-time charge, payment is due on its Date of
     Installation. Recurring charges for a Product begin on its Date of
     Installation.

     You agree to pay as we specify in the invoice. You also agree to pay
     amounts equal to any applicable taxes resulting from any transaction under
     this Agreement. This does not include taxes based on our net income. You
     are responsible for personal property taxes for each Product from the date
     we ship it to you.

1.7  ADDITIONAL CHARGES

     Depending on the particular Product, Service, or circumstances, additional
     charges may apply. For example, if we are required to use other than
     private automobile or scheduled public transportation to provide
     Maintenance Services to you, we charge an additional amount. We will notify
     you in advance if these charges apply.

1.8  TYPES OF SERVICE FOR MACHINES

     We provide certain types of service for a Machine to keep it in, or restore
     it to, good working order during its warranty period or while it is under
     Maintenance Services. The following terms apply to both warranty service
     and Maintenance Services.

     Depending on the Machine, the service may be 1) a "Repair" service at your 
     location (called "On-site") or at one of our service locations (called
     "Carry-in") or 2) an "Exchange" service, either On-site or Carry-in. We
     will inform you of the available types of service for a Machine.

     Under Maintenance Services, you may select the type of service from those
     available for the Machine. We require that a Machine and its features have
     the same type of service.

     We offer On-site types of service 24 hours a day, seven days a week.
     Carry-in types of service are available during the normal business hours of
     our service locations.

     When a type of service involves the exchange of a Machine or part, the item
     we replace becomes our property and the replacement becomes yours. The
     replacement may not be new, but will be in good working order.

     Under Carry-in service, instead of delivering the failing Machine to us, if
     you prefer, you may ship it (prepaid and suitably packaged) to a location
     we designate. After we have repaired or exchanged the Machine, we will
     return it to you at our expense.

     Under On-site Exchange service, depending on the nature of the failure, we
     may repair the failing Machine at your site instead of exchanging it.

     We are responsible for loss of, or damage to, your Machine while it is 1)
     in our possession or 2) in transit in those cases where we are responsible
     for the transportation charges.


Z125-4575-00 1/91                                       Page 6 of 23
<PAGE>

     You agree to:

     1. obtain authorization from the owner to have us service a Machine that
        you do not own;

     2. where applicable, before we provide service --

        a. follow the problem determination, problem analysis, and service
           request procedures that we provide.

        b. secure all programs, data, and funds contained in a Machine.

        c. inform us of changes in a Machine's location, and

        d. for a Machine with Exchange service, remove all features, parts,
           options, alterations, and  attachments not under our service. You
           also agree to ensure that the Machine is free of any legal
           obligations or restrictions that prevent its exchange;

     3. be responsible for loss of, or damage to, a Machine in transit in those
        cases where you are responsible for the transportation charges; and

     4. on completion of Carry-in Repair service, connect a repaired Machine and
        verify its operation.

1.9  PATENTS AND COPYRIGHTS

     If a third party claims that a Product we provide infringes a patent or 
     copyright, we will defend you against that claim at our expense and pay all
     costs, damages, and attorney's fees that a court finally awards, provided
     that you:

     1. promptly notify us in writing of the claim; and

     2. allow us to control, and cooperate with us in, the defense and any
        related settlement negotiations.

     If such a claim is made or appears likely to be made, you agree to permit
     us to enable you to continue to use the Product, or to modify or replace
     it. If we determine that none of these alternatives is reasonably
     available, you agree to return the Product to us on our written request.
     We will then give you a credit equal to your net book value for the
     Product, provided you have followed generally-accepted accounting
     principles.

     This is our entire obligation to you regarding any claim of infringement.

     CLAIMS FOR WHICH WE ARE NOT RESPONSIBLE

     We have no obligation regarding any claim based on any of the following:

     1. your modification of a Product, or a Program's use in other than its
        Specified Operating Environment;

     2. the combination, operation, or use of a Product with any product, data,
        or apparatus that we did not provide; or

     3. infringement by a non-IBM Product alone, as opposed to its combination,
        operation, or use as part of a system of Products that we provide to
        you.


1.10 LIMITATION OF LIABILITY

     Circumstances may arise where, because of a default on our part or other
     liability, you are entitled to recover damages from us. In each such
     instance, regardless of the basis on which you are entitled to claim
     damages from us, we are liable only for:

     1. payments referred to in our patent and copyright terms described above;

     2. bodily injury (including death), and damage to real property and
        tangible personal property; and


Z125-4575-00 1/91                                       Page 7 of 23


<PAGE>


     3. the amount of any other actual loss or damage, up to the greater of
        $100,000 or the charges (if recurring, 12 months' charges apply) for
        the Product or Service that is the subject of the claim.

     This limit also applies to any of our subcontractors and Program
     developers. It is the maximum for which we are collectively responsible.

     ITEMS FOR WHICH WE ARE NOT LIABLE

     Under no circumstances are we liable for any of the following:

     1. third-party claims against you for losses or damages (other than those
        under the first two items listed above);

     2. loss of, or damage to, your records or data; or

     3. economic consequential damages (including lost profits or savings) or
        incidental damages, even if we are informed of their possibility.

1.11 MUTUAL RESPONSIBILITIES

     Both of us agree that under this Agreement:

     1. neither of us will use the other's trademark, trade name, or other
        designation in any promotion or publication without prior written
        consent;

     2. all information exchanged is nonconfidential. If either of us requires
        the exchange of confidential information, it will be made under a
        signed confidentiality agreement;

     3. each is free to enter into similar agreements with others;

     4. each grants the other only the licenses specified. No other licenses
        (including licenses under patents) are granted;

     5. each will allow the other reasonable opportunity to comply before it
        claims that the other has not met its obligations; and

     6. neither of us will bring a legal action more than two years after the 
        cause of action arose.

1.12 YOUR OTHER RESPONSIBILITIES

     You agree:

     1. not to assign this Agreement or your rights under it, delegate your
        obligations, or resell any Service without prior written consent. Any
        attempt to do so is void;

     2. to acquire Machines with the intent to use them within your Enterprise
        and not for reselling, leasing, or transferring to a third party, unless
        either of the following applies --

        a. you are arranging lease-back financing for the Machines, or

        b. you purchase them without any discount or allowance, and do not
           remarket them in competition with our authorized remarketers;

     3. to allow us to install mandatory engineering changes (such as those
        required for safety) on a Machine. Any parts we remove become our
        property;

     4. that you are responsible for the results obtained from the Products and
        Services;

     5. to comply with all applicable government export laws and regulations;
        and

     6. to provide us with full, free, and safe access to your facilities for us
        to fulfill our obligations. If you become aware of any unsafe conditions
        or hazardous materials to which our personnel would be exposed at any of
        your facilities, you agree to promptly notify us.


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<PAGE>

1.13  YOUR ADDITIONAL RIGHTS

      You may have additional rights under certain laws (such as consumer 
      laws) which do not allow the exclusion of implied warranties, or the
      exclusion or limitation of certain damages. If these laws apply, our
      exclusions or limitations may not apply to you.

1.14  IBM BUSINESS PARTNERS

      We have signed agreements with certain organizations (called "IBM 
      Business Partners") to promote, market, and support some of our 
      Products and Services. We have chosen these organizations because
      of their skills and experience in a particular field.

      When you order our Products or Services (marketed to you by these
      organizations) under this Agreement, we confirm that we are
      responsible for providing them to you under the warranties and other
      terms of this Agreement. We are not responsible for 1) the actions of
      these organizations, 2) any additional obligations they may have to
      you, or 3) any products or services that they (and not us) may supply
      to you.

1.15  CHANGES TO THE AGREEMENT TERMS

      In order to maintain flexibility in our Products, Services, and 
      Options, we may change the terms of this Agreement by giving you
      three months' written notice. However, these changes are not
      retroactive. They apply, as of the effective date we specify in the
      notice, only to new orders (those we receive on or after the date
      of the notice) and to on-going transactions, such as licenses and
      Services.

      Otherwise, for a change to be valid, both of us must sign it.
      Additional or different terms in any order or written communication
      from you are void.


1.16  AGREEMENT TERMINATION

      You may terminate this Agreement on written notice to us following the
      expiration or termination of all your obligations.

      Either of us may terminate this Agreement if the other does not comply
      with any of its terms, provided the one who is not complying is given
      written notice and reasonable time to comply.

      Any terms of this Agreement which by their nature extend beyond its 
      termination remain in effect until fulfilled, and apply to respective
      successors and assignees.

1.17  GEOGRAPHIC SCOPE

      All your rights, all our obligations, and all licenses (except for
      Licensed Internal Code and as specifically granted) are valid only in
      the United States and Puerto Rico.

1.18  GOVERNING LAW

      The laws of the State of New York govern this Agreement.

Z125-4575-00 1/91                 Page 9 of 23
<PAGE>

IBM CUSTOMER AGREEMENT

PART 2 - WARRANTIES
- --------------------------------------------------------------------------------
2.1  THE IBM WARRANTIES

     WARRANTY FOR IBM MACHINES

     For each IBM Machine, we warrant that it:

     1. is free from defects in materials and workmanship; and

     2. conforms to its Specifications.

     The warranty period for a Machine is a specified, fixed period. We 
     calculate its expiration from the Machine's Date of Installation.

     During the warranty period, we provide warranty service under the
     type of service we designate for the Machine or under the alternative
     service you select under Maintenance Services.

     For us to provide warranty service for a feature, conversion or upgrade,
     we require that the Machine on which it is installed be 1) the 
     designated, serial-numbered Machine and 2) at an engineering-change
     level compatible with the feature, conversion, or upgrade.

     During the warranty period, we manage and install engineering changes
     that apply to the Machine.

     If a Machine does not function as warranted during the warranty period,
     we will repair or replace it without charge. If we are unable to do so,
     you may return it to us and we will refund your money.

     WARRANTY FOR IBM PROGRAMS

     For each warranted IBM Program, we warrant that:

     1. we have the right to license it; and

     2. it conforms to its Specifications.

     The warranty period for a Program expires when its Program Services are 
     no longer available.


     During the warranty period, we provide warranty service, without charge,
     for a Program through Program Services. Program Services are available 
     for a warranted Program for at least one year following its general
     availability. Therefore, the duration of warranty service depends on when
     you obtain your license. If, during the first year after you obtain your
     license, we are unable to make the Program function as warranted, you 
     may return it to us and we will refund your money.

     WARRANTY FOR IBM SERVICES

     For each IBM Service, we warrant that we perform it:

     1. in a workmanlike manner; and

     2. according to its current description contained in this Agreement, an 
        Attachment, or a Transaction Document.

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<PAGE>


     WARRANTY FOR SYSTEMS

     Where we provide Products to you as a system, we warrant that they are
     compatible and can operate with one another.

     WARRANTY FOR INTEGRATED SYSTEMS

     For each integrated system we deliver to you under a Statement of Work 
     for Systems Integration Services, we warrant that it meets its Completion
     Criteria as specified in the Statement of Work.

     The warranty period for an integrated system is a fixed period as 
     specified in the Statement of Work. It begins on the date we deliver the
     system to you.

     If an integrated system does not function as warranted during the 
     warranty period, we will correct the deficiency without charge. If we 
     are unable to do so, you may return the system to us and we will refund
     your money.

2.2  EXTENT OF WARRANTY

     If a Machine is subject to federal or state consumer warranty laws, our
     statement of limited warranty included with the Machine applies in place
     of these Machine warranties.

     Misuse, accident, modification, unsuitable physical or operating 
     environment, operation in other than the Specified Operating Environment,
     improper maintenance by you, or failure caused by a product for which
     we are not responsible may void the warranties.

     THESE WARRANTIES REPLACE ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, 
     INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 
     PARTICULAR PURPOSE.

2.3  ITEMS NOT COVERED BY WARRANTY

     We do not warrant uninterrupted or error-free operation of a Product or
     Service.

     We will identify IBM Products and Services that we do not warrant.

     We provide non-IBM Products and Services on an "AS IS" basis. However,
     non-IBM manufacturers, suppliers, or publishers may provide their own
     warranties to you.

Z125-4575-00 1/91                 Page 11 of 23

<PAGE>

IBM CUSTOMER AGREEMENT

PART 3 - MACHINES
- --------------------------------------------------------------------------------

3.1  TITLE

     When we accept your order, we agree to sell you the Machine described in 
     a Transaction Document. We transfer title to you or, if you choose, your
     lessor when we ship the Machine. However, we reserve a purchase money
     security interest in the Machine until we receive the amounts due. For
     a feature, conversion, or upgrade involving the removal of parts which
     become our property, we reserve the security interest until we receive
     the amounts due and the removed parts. You agree to sign an appropriate
     document to permit us to perfect our purchase money security interest.

3.2  RISK OF LOSS

     We bear the risk of loss for the Machine through its Date of 
     Installation. Thereafter, you assume the risk.

3.3  PRODUCTION STATUS

     Each Machine is manufactured from new parts, or new serviceable used 
     parts (which perform like new parts). In some cases, the Machine may 
     not be new and may have been previously installed. Regardless of the
     Machine's production status, our warranty terms apply.

3.4  INSTALLATION

     For the Machine to function properly, it must be installed in a suitable
     physical environment. You agree to provide an environment meeting our 
     specified requirements for the Machine.

     We design our standard installation procedures to ensure that each 
     Machine we install is in good working order and meets its Specifications.
     We will successfully complete these procedures before we consider the 
     Machine installed.

     You are responsible for setting up a Customer-set-up Machine (we provide 
     instructions to enable you to do so) and for the installation of a non-IBM
     Machine.

     MACHINE FEATURES, CONVERSIONS, AND UPGRADES

     We sell features, conversions, and upgrades for installation only on 
     designated, serial-numbered Machines. You represent that you have the
     permission of the owner (if you are not the owner of the Machine) and
     any lien holders to 1) install features, conversions, and upgrades and
     2) transfer removed parts to us.

     Some of these transactions (called "Net-Priced" transactions) include
     associated replacement parts. We provide these parts on an exchange 
     basis. All removed parts in a Net-Priced transaction become our property.
     For a Net-Priced transaction, you agree to allow us to install it within
     30 days of its delivery and to recover the removed parts. Otherwise, we
     may terminate the transaction and you must return the feature, 
     conversion, or upgrade to us at your expense.

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<PAGE>

3.5  LICENSED INTERNAL CODE

     Certain Machines we specify (called "Specific Machines") use Licensed
     Internal Code (called "Code"). We own copyrights in Code. We own all
     copies of Code, including all copies made from them.

     We will identify each Specific Machine in a Transaction Document. If you
     are the rightful possessor of a Specific Machine, we grant you a license
     to use the Code (or any replacement we provide) on, or in conjunction 
     with, only the Specific Machine, designated by serial number, for which 
     the Code is provided. We license the Code to only one rightful possessor 
     at a time.

     Under each license, we authorize you to do only the following:

     1. execute the Code to enable the Specific Machine to function according 
        to its Specifications;

     2. make a backup or archival copy of the Code (unless we make one 
        available for your use), provided you reproduce the copyright notice
        and any other legend of ownership on the copy. You may use the
        copy only to replace the original, when necessary; and

     3. execute and display the Code as necessary to maintain the Specific
        Machine.

     You agree to acquire any replacement for, or additional copy of, Code
     directly from us in accordance with our standard policies and practices.
     You also agree to use that Code under these terms.

     You may transfer possession of the Code to another party only with the
     transfer of the Specific Machine. If you do so, you must 1) either give
     the other party all your copies of the Code or destroy them, and 2) give
     the other party a copy of this page with the Specific Machine's
     identification information filled in below. We license the other party
     when it accepts these terms by initial use of the Code. These terms
     apply to all Code you acquire from any source.

     Your license terminates when you no longer rightfully possess the 
     Specific Machine.

     ACTIONS YOU MAY NOT TAKE

     You agree to use the Code only as authorized above. You may not do, for
     example, any of the following:

     1. otherwise copy, display, transfer, adapt, modify, or distribute the 
        Code (electronically or otherwise), except as we may authorize in
        the Specific Machine's Specifications or in writing to you;

     2. reverse assemble, reverse compile, or otherwise translate the Code;

     3. sublicense or assign the license for the Code; or

     4. lease the Code or any copy of it.

      ----------------------------------------------------------------------
            INFORMATION FOR SUBSEQUENT LICENSEE OF LICENSED INTERNAL CODE
 
            This page is copied from the IBM Customer Agreement and is 
            provided to the subsequent licensee when Code is transferred.

            The Specific Machine being transferred is identified as:

                  Type/Model____________ Serial Number ________________

            The following definitions are provided for the subsequent
            licensee of the Code:

            1. "We" means International Business Machines Corporation (IBM);

            2. "Transaction Document" does not apply to you. The above
               Type/Model and Serial Number identify the Specific Machine
               to you;

            3. "You" means the subsequent licensee of the Code; and

            4. "Specifications" means IBM's Official Published Specifications.

      ----------------------------------------------------------------------

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<PAGE>


[IBM LOGO]  CUSTOMER AGREEMENT

PART 4 - PROGRAMS

- --------------------------------------------------------------------------------

4.1  GRANT OF LICENSE

     When we accept your order, we grant you a license for the Program. 
Programs are copyrighted and licensed (not sold).  We do not transfer title to 
Programs to you.

4.2  LICENSE DETAILS

     Under each license, we authorize you to:

      1.  use the Program's machine-readable portion on only the Designated 
          Machine, unless --

           a.  the Designated Machine is inoperable. You may then use the 
               Program on a backup Machine,

           b.  the Designated Machine cannot assemble or compile the Program.  
               You may then assemble or compile it on another Machine,

           c.  we grant an "Installation License." You may then use the Program 
               on any other Machine in the same or adjoining rooms as the 
               Designated Machine, or

           d.  we grant a "Location License."  You may then use the Program 
               on any other Machine in the same building with the same mailing 
               address as the Designated Machine.

          If you change the Designated Machine, you agree to notify us of the 
          change and its date;

      2.  store the Program's machine-readable portion in, transmit it through, 
          and display it on, Machines associated with the Designated Machine;

      3.  do the following to support your authorized use as described above --

           a.  modify the Program's machine-readable instructions or data, or 
               merge them into another Program, and

           b.  make copies of the Program, provided you reproduce the copyright 
               notice and any other legend of ownership on each copy or partial 
               copy; and

      4.  use any portion of the Program we mark restricted (for example, 
          "Restricted Materials of IBM") only to --

           a.  resolve problems related to the use of the Program, and

           b.  modify the Program so that it will work together with other 
               products.

     You agree to comply with any additional terms (for example, a usage 
     restriction) that a Program's Specifications may contain. We provide the 
     Specifications to you with the Program. For an "AS IS" Program, any 
     additional terms are contained in a document called "Notice of 
     Availability."

     ACTIONS YOU MAY NOT TAKE

     You agree not to do any of the following:

      1.  sublicense, assign, or transfer the license for any Program;

      2.  distribute any Program to any third party; or

      3.  reverse assemble, reverse compile, or otherwise translate any 
          Program.



Z125-4575-00 1/91                                            Page 14 of 23

<PAGE>


4.3  DISTRIBUTED FEATURES

     Some Programs have features (called "Distributed Features") that are 
     designed to work with those Programs (called "Associated Programs"). 
     After we accept your order for a Distributed Feature, we authorize you to:

      1.  make a copy of the Distributed Feature and its documentation; and

      2.  distribute the copy to, and use it on, a machine other than the 
          Designated Machine of the Associated Program. You may use the copy on 
          only one Machine at a time. Persons using a Machine outside of your 
          Enterprise may use the copy only to access the Associated Program.

4.4  ADDITIONAL LICENSE COPIES

     You may order additional licenses for Programs. If you prefer, for each 
     license we grant, rather than shipping you another copy of the Program, 
     we will authorize you to make an additional copy (called an "Additional 
     License Copy").

     For some Programs, you may make a copy under a Distributed System 
     License Option (called a "DSLO" license). We charge less for a DSLO 
     license than we do for the original license (called the "Basic" 
     license). In return for the lesser charge, you agree to do the following 
     while licensed under a DSLO:

      1.  have a Basic license for the Program;

      2.  provide problem documentation and receive Program Services (if any) 
          only through the location of the Basic license; and

      3.  distribute to, and install on, the DSLO's Designated Machine, any 
          release, correction, or bypass that we provide for the Basic license.

4.5  PROGRAM TESTING

     We provide a testing period for certain Programs to help you evaluate if 
     they meet your needs. The testing period for a Program starts 1) 10 days 
     after we ship it or 2) on the day we authorize you to make an Additional 
     License Copy. We will inform you of the duration of the Program's testing 
     period.

     For the first order for each Distributed Feature, the testing period is 
     the same as its Associated Program.

     We do not provide a testing period for a Program under a DSLO license.

4.6  PROGRAM PACKAGES

     We provide certain Programs together with their own license agreements. 
     These Programs (called "Program Packages") are licensed under the terms 
     of the agreements provided with them. This Agreement's patent and 
     copyright terms apply to IBM Program Packages.

     For a Program Package, we may specify that:

      1.  Additional License Copies apply.  If so, these copies are subject to 
          the terms of the Program Package's agreement, except that you may not 
          transfer them; and

      2.  a testing period applies. If so, and you return the Program Package 
          to us before the end of the testing period, we will refund your 
          money.

     If a Program Package has Distributed Features, this Agreement's terms 
     regarding Distributed Features apply.



Z125-4575-00 1/91                                            Page 15 of 23

<PAGE>

4.7  PROGRAM PROTECTION

     For each Program, you agree to:

      1.  if it is a data base, allow access to it only to your employees;

      2.  ensure that anyone who uses it (accessed either locally or remotely) 
          does so only for your authorized use and complies with our terms 
          regarding Programs; and

      3.  maintain records of all copies.

4.8  PROGRAM SERVICES

     We provide Program Services for warranted Programs and for selected other 
     Programs. If we can reproduce your reported problem in the Specified 
     Operating Environment, we will issue defect correction information, a 
     restriction, or a bypass. We provide Program Services for only the 
     unmodified portion of a current release of a Program.

     We provide Program Services 1) on an on-going basis (with at least six 
     months' written notice before we terminate services for a Program), 2) 
     until the date we specify, or 3) for a period we specify.

4.9  VARIABLE-CHARGE PROGRAMS

     We may place a Machine in a Machine group. The charges for some Program 
     licenses depend on the group of the Designated Machine. We call these 
     Programs "Variable-Charge" Programs. Variable charges include graduated 
     charges and processor-based charges. We will specify the group for a 
     Machine and will inform you of any changes.

     For these licenses, the following apply:

      1.  if you change (including upgrade or downgrade) a Designated Machine 
          to a Machine in another group, you may incur a group-upgrade charge 
          or a changed recurring charge. You agree to promptly notify us of the 
          date of such a change;

      2.  if we reassign a Designated Machine to a Machine group with different 
          charges, Program licenses with one-time charges due or paid before 
          the reassignment are not affected. Otherwise, our price change terms 
          apply; and

      3.  if a change or reassignment results in a lower charge, we do not give 
          credits or refunds for one-time charges already due or paid.

4.10 LICENSE TERMINATION

     You may terminate the license for a Program on one month's written notice 
     or at any time during the Program's testing period. For some Programs, if 
     you terminate the license and replace that Program with another we specify,
     we only require you to pay an upgrade charge.

     We may terminate any license we grant in this Part if you do not meet your 
     obligations regarding Programs.

     You agree to destroy all copies of the Program within three months after 
     license termination. However, you may keep a copy in your archives.


Z125-4575-00 1/91                                            Page 16 of 23

<PAGE>


[IBM LOGO]  CUSTOMER AGREEMENT

PART 5 - SERVICES

- --------------------------------------------------------------------------------

5.1  MAINTENANCE SERVICES

     You may select the type of service from those available for the Machine. 
     When we accept your order, we agree to service the Machine described in 
     a Transaction Document. Based on the type of service, we will restore 
     the Machine to good working order or exchange it. We may also perform 
     preventive maintenance, including lubrication, adjustments, and 
     replacement of parts. We manage and install engineering changes that 
     apply to the Machine.

     We will inform you of the date on which Maintenance Services begin. We 
     may inspect the Machine within one month following that date. If the 
     Machine is not in an acceptable condition for service, you may 1) have 
     us restore it for a charge or 2) withdraw your request for Maintenance 
     Services and we will refund any amounts you have paid to us for its 
     service.

     For a Machine under a usage plan, you agree to provide us with the meter 
     reading as of the last working day of the period that the minimum 
     maintenance charge covers.

     We provide Maintenance Services for selected non-IBM Machines only when 
     they are connected to certain IBM Machines. When a type of service 
     involves the exchange of a non-IBM Machine, the replacement may not be 
     identical.

     Maintenance Services do not cover accessories and certain parts, such as 
     frames and covers. In addition, Maintenance Services do not cover 
     service of a Machine damaged by misuse, accident, modification, 
     unsuitable physical or operating environment, improper maintenance by 
     you, or failure caused by a product for which we are not responsible.

     ALTERNATIVE SERVICE DURING WARRANTY

     For certain Machines, at any time during the warranty period, you may 
     select a different type of service from that which we designate for the 
     Machine. For example, if you prefer On-site service to Carry-in, it may 
     be available. We will inform you of the available types of service for 
     the Machine and the available alternative service periods. We provide 
     the alternative type of service for an additional charge. When the 
     alternative service ends, we will continue Maintenance Services for the 
     Machine under the same type of service you selected.

     MAINTENANCE SERVICES TERMINATION

     You may terminate Maintenance Services for a Machine on one month's 
     written notice to us under any of the following circumstances:

      1.  after it has been under Maintenance Services for at least six 
          months;

      2.  if you remove it from productive use within your Enterprise;

      3.  as of the effective date of an increase in Maintenance Services 
          charges; or

      4.  if you terminate coverage for a Maintenance Service Option under 
          our terms for 1) removal of Machine type from eligibility or 2) 
          increased total adjusted charges for Maintenance Services.

     We may terminate Maintenance Services for a Machine on three months' 
     written notice, provided it has been under Maintenance Services for at 
     least one year.

     Either of us may terminate service for any Machine if the other does not 
     meet its obligations concerning Maintenance Services. On termination of 
     service for a Machine, we will give you any applicable credit.


Z125-4575-00 1/91                                            Page 17 of 23

<PAGE>

5.2  CONTINUING SUPPORT SERVICES

     We provide Continuing Support Services on a contract-period basis to 
     assist you in such areas as improving the availability of your systems 
     and improving your productivity. We provide the terms specific to a 
     Service in an Attachment. If we make a change to the terms of an 
     Attachment that 1) affects your current contract period and 2) you 
     consider unfavorable, on your request, we will defer it until the end of 
     that contract period.

     We will specify the eligible Products, applicable prerequisites and 
     minimum commitments, exit-option percents, and available contract 
     periods for a Service. We will also inform you periodically of any 
     changes. These changes apply only to orders that we confirm on or after 
     the effective date of the change.

     When we accept your order, we will confirm the specific details of the 
     Service in a Transaction Document. You may select a start date for the 
     Service that is within three months following the effective date we 
     specify in the Transaction Document.

     During a contract period, we may increase charges. An increase becomes 
     effective on the next anniversary of the start of a contract period, 
     following the effective date we specify in the notice. When an increase 
     results in a change to your total monthly charge for a Service of more 
     than the exit-option percent we specify, you may terminate that Service 
     on the effective date of the increase. Adjustment or termination charges 
     do not apply in this case.

     You may request a change to the Services you have selected on one 
     month's notice. If we agree, we will confirm the change to you with 
     applicable adjustments in charges.

     Each of us agrees to notify the other (before your current contract 
     period expires) if they do not intend to renew.

     CONTINUING SUPPORT SERVICES TERMINATION

     You may terminate a Continuing Support Service by providing us one 
     month's written notice upon fulfillment of any minimum commitments.

     The termination of Services with contract periods longer than one year 
     results in adjustment charges. In this case, you agree to pay the lesser 
     of:

      1.  the difference between the total charges you paid through the 
          termination date and those you would have paid for the shorter 
          contract period;

      2.  the monthly charge multiplied by the applicable adjustment charge 
          factor; or

      3.  the total charges remaining to complete the contract period.


5.3  PROJECT SUPPORT SERVICES

     The Project Support Services we make available to you include providing 
     general assistance on a technical task (such as writing programs), 
     providing consulting services, acting as a prime contractor to deliver 
     an information handling function, and providing Systems Integration 
     Services.

     When we accept your order, we agree to provide the Services described in 
     the Statement of Work. We require a separate Statement of Work, signed 
     by both of us, for each project.

     We manage the project unless the Statement of Work specifies that you 
     manage it. If you are responsible, then we only provide Services to 
     assist you.


Z125-4575-00 1/91                                            Page 18 of 23

<PAGE>

     The Statement of Work includes:

     1. our respective responsibilities;

     2. an estimated schedule which we provide for planning purposes;

     3. the specific conditions, if any, (called the "Completion Criteria")
        that we are required to meet to fullfill our obligations; and

     4. applicable charges and any other terms.

     Each of us agrees to make reasonable efforts to carry out our respective
     responsibilities according to the estimated schedule. However, if
     Completion Criteria are applicable, then the project is complete when we
     meet those criteria.

     CHANGES TO THE STATEMENT OF WORK

     When both of us agree to change a Statement of Work, we will prepare a
     written description of the change (called a "Change Authorization"). The
     Change Authorization becomes effective when we provide it to you. It need
     not be signed, unless either of us requests signature.

     Any change in the Statement of Work may affect the charges, estimated
     schedule, or other terms. Depending on the scope of the requested change,
     we may charge you for our effort to analyze it. We will then give you a 
     written estimate of the charges for the analysis. We will perform the
     analysis only on your written authorization.

     PERSONNEL

     Each of us will authorize a person to represent us during the project. 
     Each will 1) address all notices to the other's representative and
     2) promptly notify the other in writing if this person is replaced.
     Each of us is responsible for supervising and controlling only our own
     personnel.

     We will try to honor your requests regarding the assignment of our
     personnel to your project. However, we reserve the right to determine 
     the assignment of our personnel.

     OWNERSHIP AND LICENSE

     During a project, we may deliver to you work product (called 
     "Materials"), such as programs, program listings, programming
     tools, documentation, reports, and drawings.

     The Statement of Work will specify if Materials are applicable
     to the project. It will identify them as being "Type I Materials,"
     "Type II Materials," or otherwise as we both agree.

     Type I Materials are those, created during the project, in which you will
     have all right, title, and interest (including ownership of copyright).
     We will retain one copy of the Materials. You grant us 1) an irrevocable,
     nonexclusive, worldwide, paid-up license to use, execute, reproduce,
     display, perform, distribute (internally and externally) copies of, and
     prepare derivative works based on Type I Materials and 2) the right
     to authorize others to do any of the former.

     Type II Materials are those in which we or third parties have all right,
     title, and interest (including ownership of copyright). We will deliver 
     one copy of the Materials to you. We grant you an irrevocable,
     nonexclusive, worldwide, paid-up license to use, execute, reproduce,
     display, perform, and distribute (internally only) copies of Type II
     Materials.

     Each of us agrees to reproduce the copyright notice and any other
     legend of ownership on any copies made under the licenses granted in
     this Part.

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<PAGE>

     PROJECT SUPPORT SERVICES TERMINATION

     You may terminate a project on written notice to us. We may terminate a 
     project if you do not meet your obligations concerning it. Upon 
     termination, we will stop our work in an orderly manner as soon as 
     practical.

     You agree to pay us for all Services we provide and any Materials we 
     deliver though the project's termination. Payment includes any charges 
     we incur in terminating subcontracts.

     ADDITIONAL TERMS FOR SYSTEMS INTEGRATION SERVICES

     When the Statement of Work specifies Systems Integration Services, we 
     provide you with an integrated system that may consist of a combination 
     of Products, Services, Materials, and other items. We design, develop, 
     deliver, install, and support the system as described in the Statement 
     of Work.

     The Statement of Work contains the Completion Criteria. We will inform 
     you when we meet each of them. You then have 10 days to inform us if 
     you believe that we have not met the Completion Criteria.

5.4  IBM INFORMATION NETWORK AND OTHER SERVICES

     IBM INFORMATION NETWORK SERVICES

     The IBM Information Network (called "IBM IN") Services we make available
     to you include access to, and use of, IBM IN machines, programs, 
     networking facilities, and associated communications and support 
     services. We provide the terms specific to IBM IN Services in an
     Attachment.

     ON-LINE SERVICES

     We make on-line Services available to you, including access to certain
     of our information data bases. We provide these Services to you through
     a connection to IBM IN. We provide the terms specific to an on-line
     Service in an Attachment. We may specify that you accept the terms of
     IBM IN Services as a prerequisite to an on-line Service.

     OTHER SERVICES

     We make other Services available to you that are not associated with the
     Services described in this Part. For these Services, we provide all the
     additional terms in Attachments.



Z125-4575-00 1/91                 Page 20 of 23

<PAGE>

IBM CUSTOMER AGREEMENT

PART 6 - OPTIONS
- --------------------------------------------------------------------------------
6.1  VOLUME DISCOUNTS

     We provide discounts for certain Products based on the volume of 
     business you agree to do with us (called your "Commitment") during
     a contract period. You may make a Commitment based on either Product
     quantity or revenue. Revenue for a Product is its single-unit charge,
     less any discounts or allowances.

     We will specify the eligible Products, their categories, available 
     contract periods, upper-limit percents, and adjustment charge factors. 
     We will inform you periodically of any changes. An unfavorable change 
     (and all changes related to it) applies to an existing Commitment only 
     if you accept it in writing. Related changes become effective at the 
     same time. We will also inform you if we withdraw eligible Products from 
     marketing. We then accept orders you place for these Products subject to 
     their availability.

     Unless we specify otherwise, we do not discount Program upgrades, 
     Program features ordered separately from Programs, accessories, or 
     field-installed Machine features, conversions, or upgrades.

     END USER CERTIFICATION

     You agree to acquire the Products for use only within your Enterprise 
     and not for remarketing. We call this representation "End User 
     Certification." We provide the discounts to you based on End User 
     Certification.

     HOW YOU MAY OBTAIN THE DISCOUNTS

     If you wish to obtain the discounts, you agree to sign an Addendum 
     specifying your Commitment, and selected contract-period start date and 
     duration.

     During the contract period, you may increase your Commitment or extend 
     the contract period (subject to our approval) by signing a revised 
     Addendum. If you extend, you agree to increase your Commitment so that 
     the new discount precent is at lease equal to your current discount 
     percent. Any increased discount percent applies to all eligible Products 
     for which Date of Installation is on or after the date we receive your 
     signed Addendum.

     HOW WE APPLY THE DISCOUNTS

     We apply the discount to the single-unit charges of eligible Products 
     that you acquire from us during the contract period. The charges are the 
     lesser of 1) those generally available at the time of acquisition or 2) 
     the announced charges in effect on the date we receive the initial 
     Addendum, subject to our price change terms described below.

     We count specified Products that you acquire from our authorized 
     remarketers when we receive the require certification. Adjustment 
     charges do not apply to these Products.

     We may place some Products in a dependent category with an associated 
     controlling category. To determine the discount percent applicable to 
     either category, we count quantities or revenue for only those Products 
     in the controlling category.

     PRICE CHANGES

     During a contract period, we may increase or decrease charges. We apply 
     your discount to the new charges as follows:

     1. we establish a maximum charge (called an "Upper Limit") for each 
        Product in a committed category for each year of a contract period. 
        We determine the Upper Limit by increasing the announced charge in 
        effect, as of the date we receive the initial Addendum,

Z125-4575-00 1/91                 Page 21 of 23

<PAGE>


        by a certain amount. We calculate this amount by multiplying that 
        charge by the upper-limit percent we specify at the time of your 
        Commitment;

     2. for an increase, we apply the discount to either the increased charge 
        or the Upper Limit, whichever is less; and

     3. for a decrease, we apply the discount to the decreased charge, 
        provided you accept any related changes in terms we may have made after
        your Commitment. Otherwise, you may select 1) the decreased charge 
        without discount or 2) the discounted charge available to you before
        the decrease.

     ADJUSTMENT CHARGES

     If you have not met your Commitment by the end of the contract period, 
     you agree to pay adjustment charges. The adjustment charge for each 
     Product is either:

     1. the difference between the discounted amount we charged you and the 
        discounted amount which you were entitled to receive; or

     2. the result of multiplying the adjustment charge factor by the number 
        of discount percentage points between what we gave you and what you 
        were entitled to receive.

     We will inform you which method we use for a particular Product.

     For a revenue-based Commitment, the total of the adjustment charges will 
     not be more than the difference between your Commitment and the actual 
     revenue you attained.

     INTERNATIONAL DISCOUNTS

     For our international customers, we provide volume discounts based 
     on worldwide Commitments. To allow you to participate in such a 
     Commitment, this Agreement may be modified by a signed international 
     agreement. You, your international enterprise coordinator, and we will sign
     the relevant Transaction Document, unless the coordinator exempts you from 
     signing. That Transaction Document becomes part of this Agreement.

6.2  MAINTENANCE SERVICE OPTIONS

     We provide Maintenance Service Options for certain Machines. If you wish 
     to obtain the benefit of lower charges available under an Option, you
     agree to assume additional, specified responsibilities. We provide the
     terms specific to an Option in an Attachment.

     We will specify the eligible Machine types, eligible types of service, 
     available disount percents and contract periods, exit-option percents, and 
     notice requirements for termination of each contract period, as 
     applicable to each Option. We will also inform you periodically of any 
     changes. We will defer an unfavorable change (and all changes related to
     it) until the end of your contract period, if you request it in writing
     before the effective date of the change. Related changes become effective
     at the same time.

6.3  PAYMENT OPTIONS

     EXTENDED MAINTENANCE OPTION

     You may select the Extended Maintenance Option (called the "EMO") for 
     certain Machines. Under this Option, we adjust your Maintenance Services 
     charges based on your prepayment of those charges during an available 
     contract period.

     We will specify the eligible Machine types and available contract 
     periods. We will also inform you periodically of any changes. A change 
     applies only to Machines you add under this Option on or after the
     effective date of the change.

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<PAGE>

     The Transaction Document will list the Machines covered and the dates of 
     coverage for the contract period you have selected for each Machine.

     You may select EMO in addition to other Maintenance Service Options. We 
     then adjust the machine's EMO charge based on the applicable discounts
     which you are entitled to receive under those Options. While under this
     Option, you agree to maintain coverage under all the Services and other
     Options on which we base the Machine's EMO charge.

     For a machine not yet installed or set up, coverage starts on its Date 
     of Installation. For an installed Machine, coverage starts on a 
     mutually-agreed-to date. If applicable, the contract period includes the 
     machine's warranty period.

     We calculate the EMO charge for a Machine using the announced Maintenance 
     Services charges and any applicable discounts in effect for the Machine
     when coverage begins. EMO charges are not refundable after coverage has
     started for the Machine.

     Both of us agree that if a feature, conversion, or upgrade is installed 
     on a machine while it is under this Option 1) an additional charge may 
     apply and 2) the feature, conversion, or upgrade is subject to the
     remaining portion of the contract period.

     If we increase the EMO charge, the increase does not apply to a Machine 
     not yet installed or set up, unless we give you at least three months'
     notice before its scheduled date of shipment. If we decrease the EMO charge
     before coverage has begun for a Machine, you receive the benefit of the
     decrease.

     We will give you at least three months' notice of a machine's eligibility
     for renewal. At the end of your contract period, we will continue 
     Maintenance Services for the Machine (if available), unless you request us
     not to do so.

     If you transfer coverage for a Machine to a third party, you agree to 
     inform that party 1) of the applicable terms of this Agreement and 2) that
     it must notify us in writing of the transfer, the location of the Machine,
     and acceptance of coverage. If that party does not wish to maintain
     coverage under all the Services and other Options on which we base the
     Machine's EMO charge, you agree to pay the transfer charge that we specify.

     INVOICING OPTIONS

     We make Invoicing Options available to you for certain Products and 
     Services to provide flexibility in payment terms. We provide the terms 
     specific to an Option in an Attachment.

     We will specify the eligible Products, Services, and charges, and the 
     available contract periods, invoicing schedules, and environments which 
     may be covered by an Option. We will also inform you periodically of any 
     changes.

     Together, we will estimate your requirements for the applicable Products 
     and Services. We use this estimate to determine the total charges that we 
     will invoice, distributed according to the schedule you select. These 
     invoiced amounts replace the applicable charges otherwise due. Depending 
     on the Option, the total charges may be subject to adjustments.

     The Transaction Document, signed by both of us, will list the date from 
     which we provide the selected Option to you and its other details.

6.4  SPECIAL OPTIONS

     In order to meet your specific requirements, we may provide Special 
     Options to you. Under these Options, we are willing to provide special 
     terms and tailor our processes for you. We will describe our mutual 
     commitments under a Special Option in a Transaction Document.


Z125-4575-00 1/91                                    Page 23 of 23

<PAGE>


                                   EXHIBIT G


                                          BASE PERCENTAGE
                                          FOR COMMISSIONS FOR
GROUP           COUNTRIES IN GROUP        COUNTRIES IN GROUP
- -----           ------------------        ------------------
- ----------------------------------------------------------------------------

CANADA                                    [*]
- ------
                Canada

EMEA-A                                    [*]
- ------
                United Kingdom
                Sweden
                Norway
                France
                Finland
                Denmark
                Spain
                Germany

EMEA-B                                    TO BE DETERMINED
- ------                                    ----------------
                Italy
                Hungary
                Russia
                Poland

ASIA/PACIFIC-A                            [*] ([*] if no customer set up)
- --------------
                Hong Kong
                Taiwan
                Singapore
                Thailand
                Turkey
                New Zealand
                Australia
                Malaysia
                Japan

ASIA/PACIFIC-B                            TO BE DETERMINED
- --------------                            ----------------

                South Korea

*  For Sales Per Project up to [*], Percentage is [*]; for amounts 
   between US$1-2 million, Percentage is [*]; for amounts over [*], 
   Percentage is [*]

   If Invoiced Amounts reach the upper limit of the range of Base Percentage, 
   the Commissions will be calculated by applying the higher percentage to 
   the portion of the Invoiced Amount below such limit and the lower 
   percentage of the balance.


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                     - 24 -


<PAGE>


TASKS FOR ELIGIBILITY* FOR COMMISSIONS WITH RESPECT TO EACH COUNTRY LISTED IN 
THIS EXHIBIT G:



CableData (or its subsidiaries or in-country distributors) shall:

A.  GENERAL ACTIVITIES:

    1.  promote customer acquisition of CableData/IBM products and services;

    2.  monitor worldwide cable television market activity in the country;

    3.  develop a market and product strategy for CableData DDP/I products 
        used with IBM products and services in the country;

    4.  provide DDP/I advertising, sales brochures and participate in cable 
        television trade shows in the relevant country;

    5.  set up hardware and install software Eligible Products** (perform the 
        work necessary for installation of Commissionable Products such that 
        installation can be achieved in accordance with the delivery schedule);

    6.  provide marketing education on DDP/I products to its in-country 
        representatives and in-country IBM personnel;

    7.  provide, subject to availability of personnel, marketing assistance 
        to IBM for DDP/I cable television accounts (for countries in EMEA-A 
        group only);

    8.  identify cable television market opportunity(ies) in the relevant 
        country(ies);

B.  ACCOUNT-SPECIFIC ACTIVITIES:

    1.  provide, as CableData deems appropriate, relevant marketing activity, 
        such as--

        - responding to issued RFP/RFB/RFQ for DDP/I products used with IBM 
          products;
        - monitoring and follow-up on sales leads;
        - actively participating in initial and follow-on DDP/I sales calls;
        - handling all contract negotiations for DDP/I products;
        - monitoring country and account activity for customer requirements 
          for DDP/I;
        - advising IBM of customer's requirements for additional IBM products 
          as CableData becomes aware of such requirements; and

 *   IBM-Sacramento (not IBM Subsidiary within the country) is responsible 
     for determining CableData's compliance with the tasks to maintain 
     eligibility for payment of Commission.

**   This task not required for Commission in Canada



                                     - 25 -


<PAGE>


IBM                                                                   [LOGO]
                                     EXHIBIT H

AGREEMENT FOR EXCHANGE OF CONFIDENTIAL INFORMATION
- -------------------------------------------------------------------------------

The Customer (you) and International Business Machines Corporation (IBM) 
agree that the following terms and conditions apply when one of the parties 
(Discloser) discloses Confidential Information (Information) to the other 
(Recipient) under this Agreement. You and IBM agree that our mutual objective 
under this Agreement is to provide appropriate protection for information 
while maintaining our ability to conduct our respective business activities.

1.  ASSOCIATED CONTRACT DOCUMENTS

    Each time one of the parties wishes to disclose specific information to 
the other, the Discloser will issue a Supplement to this Agreement 
(Supplement) before disclosure.
    The Supplement will identify the Recipient's person designated to be its 
Point of Contact for the disclosure and will contain the Initial and Final 
Disclosure Dates. If either of these dates is omitted from the Supplement, 
such date will be deemed to be the actual date of disclosure. Information 
becomes subject to this Agreement on the Initial Disclosure Date. The 
Supplement will also contain a nonconfidential description of the specific 
information to be disclosed and any additional terms and conditions for that 
Information.
    The only time you and IBM are required to sign the Supplement is when it 
contains additional terms and conditions. When signatures are not required, 
the Recipient indicates acceptance of Information under the terms and 
conditions of this Agreement by participating in the disclosure, after 
receipt of the Supplement.

2.  DISCLOSURE

    The Discloser and the Recipient's Point of Contact will coordinate and 
control the disclosure. Information will be disclosed either:
    a)  in writing;
    b)  by delivery of items;
    c)  by initiation of access to Information, such as may be contained in a 
        data base; or
    d)  by oral and/or visual presentation.
    Information should be marked with a restrictive legend of the Discloser. 
If Information is not marked with such legend or is disclosed orally, 1) the 
Information will be identified as confidential at the time of disclosure and 
2) the Discloser will promptly provide the Recipient with written 
confirmation.

- -------------------------------------------------------------------------------

PAGE 2 IS ALSO PART OF THIS AGREEMENT.  The parties acknowledge that they 
have read this Agreement, understand it, and agree to be bound by its terms 
and conditions. Further, they agree that the complete and exclusive statement 
of the agreement between the parties relating to this subject shall consist 
of this Agreement and its Supplements. This statement of the agreement 
supersedes all proposals or other prior agreements, oral or written, and all 
other communications between the parties relating to this subject. Any 
reproduction of this Agreement by reliable means will be considered an 
original of this document.

International Business Machines        Customer name:
    Corporation                        U.S. Computer Services
Armonk, New York 10504                 d/b/a CableData

By                                     By 
   -----------------------------------    ----------------------------------- 
      Authorized signature                    Authorized signature

Name (type or print):                  Name (type or print):

Date:  January 19, 1992                Date:  January 19, 1992

Agreement number:                      Customer number:
Strategic Alliance Agreement
IBM Branch Office number:              Customer address:
                                       2969 Prospect Park Drive
IBM Branch Office address:             Rancho Cordova, CA 95670
520 Capitol Mall
Sacramento, CA 95814


                                Page 1 of 2


<PAGE>

3. OBLIGATION OF CONFIDENTIALITY

   The Recipient will use the same care and discretion to avoid disclosure, 
publication or dissemination of information as its uses with its own similar 
information that it does not wish to disclose, publish or disseminate. The 
Recipient may use Information for any purpose which does not violate such 
obligation of confidentiality.
   The Recipient may disclose Information to:
   a)  its employees and employees of its parent and subsidiary companies 
       who have a need to know; and
   b)  any other party with the Discloser's prior written consent.
Before disclosure to any of the above parties, the Recipient will have a 
written agreement with such party sufficient to require that party to treat 
Information in accordance with this Agreement.
   The Recipient may disclose Information to the extent required by law. 
However, the Recipient must give the Discloser prompt notice and make a 
reasonable effort to obtain a protective order.

4. CONFIDENTIALITY PERIOD

   Disclosed Information continues to be subject to this Agreement for two 
years following the Final Disclosure Date.

5. EXCEPTIONS

   No obligation of confidentiality applies to any Information that the 
Recipient:
    a)  already possesses without obligation of confidentiality;
    b)  develops independently; or   
    c)  rightfully receives without obligation of confidentiality from a third  
      party. 
No obligation of confidentiality applies to any Information that is, or 
becomes, publicly available without breach of this Agreement.    
   In addition, no obligation of confidentiality applies to any ideas, concepts,
know-how, or techniques contained in Information that are related to the 
Recipient's business activities (Knowledge). However, this does not give the 
Recipient the right to disclose, except as set forth elsewhere in this 
Agreement, 1) the source of Knowledge, 2) any financial, statistical or 
personnel data or 3) the business plans of the Discloser.    
   Neither this Agreement nor any disclosure of Information grants the Recipient
any license under any patents or copyrights.

6. DISCLAIMERS

   THE DISCLOSER PROVIDES INFORMATION ON AN "AS IS" BASIS.
   The Discloser will not be liable for any damages arising out of use of 
Information.
   Disclosure of Information containing business plans is for planning 
purposes only. The Discloser may change or cancel its plans at any time. 
Therefore, use of such information is at the Recipient's own risk.

7. GENERAL

   This Agreement does not require either party to disclose or to receive 
Information.
   Neither party may assign its rights or delegate its duties or obligations 
under this Agreement without prior written consent. Any attempt to do so is 
void.
   The Recipient will comply with all applicable United States and foreign 
export laws and regulations.
   IBM may modify the terms and conditions of this Agreement by giving you 
three months' written notice. Any such modification will apply only to 
Information for which the Initial Disclosure Date is on or after the 
effective date specified in the notice. Otherwise, only a written agreement 
signed by you and IBM can modify this Agreement.
   Either party may terminate this Agreement by providing one month's written 
notice to the other. Any provisions of this Agreement which by their nature 
extend beyond its termination will remain in effect beyond such termination 
until fulfilled and will apply to either party's successors and assigns.
   If there is a conflict between the terms and conditions of this Agreement 
and a Supplement, those of the Supplement prevail. Except as modified by a 
Supplement, the terms and conditions of this Agreement remain in full force 
and effect.
   The laws of the State of New York govern this Agreement.

                                  Page 2 of 2

<PAGE>


IBM                                                                   [LOGO]

SUPPLEMENT TO AGREEMENT FOR EXCHANGE OF CONFIDENTIAL INFORMATION
- -------------------------------------------------------------------------------

Customer name and address:             Reference Agreement number:         
U.S. Computer Services                 Strategic Alliance Agreement        
d/b/a CableData                                                            
2969 Prospect Park Drive               Supplement number:                   
Rancho Cordova, CA 95670                                                    
                                                                            
IBM Branch Office address:             IBM Branch Office number:            
520 Capitol Mall                                                            
Sacramento, CA 95814                   Customer number:                     


- -------------------------------------------------------------------------------

Discloser:                             Name and Address of Recipient's Point  
                                           of Contact:                        
   IBM                                                                        
        -------                                                               
   You                                                                        
           X                                                               
        -------
                                                                              
Initial Disclosure                     Final Disclosure                       
   Date:      [*]                         Date:  Termination of Strategic     
         -------------                              Alliance Agreement        
                                                ------------------------------
                                          
USE THE ACTUAL DATE OF DISCLOSURE OR      USE THE DATE ON WHICH THE DISCLOSURE 
THE DATE ON WHICH ACCESS TO INFORMATION,  IS TO BE COMPLETED OR THE DATE ON   
SUCH AS MAY BE CONTAINED IN A DATA BASE,  WHICH ACCESS TO INFORMATION WILL BE  
IS TO BE INITIATED. INFORMATION BECOMES   TERMINATED. THE CONFIDENTIALITY      
SUBJECT TO THIS SUPPLEMENT AND THE        PERIOD FOR INFORMATION EXTENDS FROM  
REFERENCED AGREEMENT ON THIS DATE.        THIS DATE.                           

        NOTE: BOTH DATES MUST BE PROVIDED, EVEN IF THEY ARE THE SAME.

- -------------------------------------------------------------------------------

REMINDER: THE DISCLOSER MUST PROVIDE THE RECIPIENT WRITTEN CONFIRMATION 
PROMPTLY AFTER A DISCLOSURE THAT 1) IS AN ORAL PRESENTATION, 2) CONSISTS OF 
THE DELIVERY OF ITEMS THAT ARE NOT MARKED WITH A RESTRICTIVE LEGEND OF THE 
DISCLOSER OR 3) CONSISTS OF ACCESS TO INFORMATION THAT IS NOT MARKED WITH A 
RESTRICTIVE LEGEND OF THE DISCLOSER.


PAGE 2 AND 1 CONTINUATION PAGE(S) ARE ALSO PART OF THIS SUPPLEMENT. The 
parties acknowledge that they have read this Supplement, understand it, and 
agree to be bound by its terms and conditions. Further, they agree that this 
Supplement and the referenced Agreement are the complete and exclusive 
statement of the agreement between the parties, superseding all proposals or 
other prior agreements, oral or written, and all communications between the 
parties relating to this subject. Any reproduction of this Supplement by 
reliable means will be considered an original of this document.

The only time you and IBM are required to sign this Supplement is when it 
contains additional terms and conditions.


International Business Machines        Customer Name:                         
    Corporation                        U.S. Computer Services                 
Armonk, New York 10504                 d/b/a CableData                        


By                                      By                                      
   ------------------------------------    ------------------------------------ 
          Authorized Signature                    Authorized Signature          

Name (type or print):                   Name (type or print):       
                                                                    
Date:  January 10, 1992                 Date:  January 10, 1992     


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                       Page 1
<PAGE>


IBM                                                                      [LOGO]


SUPPLEMENT TO AGREEMENT FOR EXCHANGE OF CONFIDENTIAL INFORMATION
- --------------------------------------------------------------------------------
REFERENCE AGREEMENT NUMBER:            SUPPLEMENT NUMBER:
Strategic Alliance Agreement                     1
- --------------------------------------------------------------------------------

CONFIDENTIAL INFORMATION:
THE FOLLOWING IS A NONCONFIDENTIAL DESCRIPTION OF INFORMATION THE DISCLOSER
WISHES TO DISCLOSE.

U.S. Computer Services' DDP/SQL and DDP/I source code, object code,
documentation, anticipated strategic business plans, anticipated targeted market
countries


ADDITIONAL TERMS AND CONDITIONS, IF ANY:

All of the above shall be held in confidence (except where information is
subject to an Exception as set forth in Paragraph 4 of the Agreement for
Exchange of Confidential Information) whether or not they are marked with a
restrictive legend.

The Recipient may use information solely for the purpose of fulfilling its
obligations under the Strategic Business Agreement between IBM and Customer
dated as of January 18, 1992.


- --------------------------------------------------------------------------------
/ / Check this box if there  are continuation pages, including attached
    additional terms and conditions.  Also, enter the number of "Continuation
    Page(s)" on page 1 of this Supplement.
- --------------------------------------------------------------------------------

Z125-4323-00 3/90                      Page 2

<PAGE>

                 ADDENDUM NUMBER ONE TO STRATEGIC BUSINESS AGREEMENT

    THIS ADDENDUM NUMBER ONE TO STRATEGIC BUSINESS AGREEMENT (the "Addendum")
is made and entered into as of June 4, 1993 by and between U.S. COMPUTER
SERVICES, a California corporation doing business as CableData and having its
principal place of business at 2969 Prospect Park Drive, Rancho Cordova,
California 95670-6006 ("CableData"), and INTERNATIONAL BUSINESS MACHINES
CORPORATION, a New York corporation having a place of business at 400 Capitol
Mall, Sacramento, California 95814 ("IBM").

                                       RECITALS

    A.   CableData and IBM are the parties to that certain Strategic Business
Agreement dated as of January 19, 1992 (the "Strategic Business Agreement")
pursuant to which they were to cooperate in the development by CableData of
certain revised versions of CableData's products that were to be compatible with
designated IBM operating systems and hardware, including IBM's UNIX-based and
POSIX-based AIX operating systems, and were to be primarily suitable for use by
customers outside the U.S.  It is CableData's intent to limit the number of
platforms for its products.

    B.   CableData and IBM now wish to modify the Strategic Business Agreement
in order to provide for the development by CableData of certain further revised
versions of CableData's products that will be compatible with IBM RISC
System/6000 and IBM's UNIX-based and POSIX-based AIX operating systems
("Designated IBM Products"), but which are suitable for use by domestic
customers within the U.S.

    NOW THEREFORE, in consideration of these premises and of the mutual
promises and conditions contained in this Addendum, IBM and CableData hereby
agree as follows:

                                      ARTICLE I
                                     DEFINITIONS

    Section 1.1  DEFINITIONS. Except as otherwise provided herein, all
capitalized terms used in this Addendum shall have the meaning given to them in
the Strategic Business Agreement.  Notwithstanding the foregoing, when used in
this Addendum, the following terms shall have the meanings provided below:


                                        - 1 -

<PAGE>

         (a)  "DDP/SQL" means Release 2.7 or lower number release of
CableData's existing proprietary cable television subscriber management
applications software.

                                      ARTICLE II
                           DEVELOPMENT OF DOMESTIC DDP/SQL

    Section 2.1  MUTUAL COOPERATION. The parties' respective obligations under
this Addendum shall commence on the date first written above.  Each party shall
use all reasonable efforts to facilitate the completion of the development by
CableData of a version of DDP/SQL that will be compatible with Designated IBM
operating systems and hardware, including IBM's UNIX-based and POSIX-based 
AIX operating systems, and will be primarily suitable for use by CableData
customers within the U.S.  Specifically, the parties wish to permit CableData
to develop a set of CableData-owned system libraries and a separate
CableData-owned application software product (DDP/SQL) which can be operated on
Designated IBM Products and which is appropriate for CableData customers in the
U.S.  It is also the parties' intention that when DDP/SQL and Designated IBM
Products are configured in a single system, that system will perform within
agreed and commercially reasonable specifications and parameters. If the parties
disagree on a technical issue during the development process, or if, when
DDP/SQL and any Designated IBM Products are configured in a single system, that
system does not perform within agreed and commercially reasonable specifications
and parameters, then the parties shall confer in good faith concerning such
issue or failure to perform, and shall negotiate in good faith to agree on joint
action to resolve such issue or failure.  Such joint action may include
additional development efforts on terms and conditions acceptable to the
parties, in their discretion. Each party shall further use all reasonable
efforts to cooperate in good faith with the other party to achieve the 
[*] objectives described herein.

    Section 2.2  PORTING OF SYSTEM LIBRARIES.
         (a)  Both parties shall cooperate as specified in this Addendum and in
the Strategic Business Agreement to [*].  In such [*] work, the parties will 
also maintain [*] Libraries with domestic standards. For the term of this 
Addendum, the parties agree to cooperate in future modification of the [*].  
(The parties understand that such cooperation for future matters does not 
include [*].) It is the intent of the parties that such [*] will work [*] 
capabilities of [*].


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


                                        - 2 -

<PAGE>

         (b)  CableData shall [*] as described in Section 2.2(a) of this 
Addendum.  During the [*] process and thereafter to the extent reasonably 
necessary, IBM shall in its sole discretion provide the services of an 
adequate number of [*] to assist CableData [*].  All such [*] shall have 
appropriate skill levels with [*] experience on [*] and experience in [*] 
using [*] for such purposes.  The assignment of such engineers shall be to 
consult with CableData on [*] issues.  These activities shall be done under 
the guidance and acceptance of CableData.  Upon mutual agreement of the 
parties, some or all of such [*] shall be assigned to work at [*] during a 
portion of the [*] phase.

         (c)  IBM shall provide technical  information with respect to [*], 
including all [*] call information made publicly available.

    Section 2.3  [*].  CableData shall use reasonable efforts to [*] DDP/SQL, 
including necessary modifications to [*] and [*] DDP/SQL, to be capable of [*]
 to be capable of operating [*] and the [*] standards using an [*].

    Section 2.4  JOINT PLANNING COMMITTEE.  The parties shall consult with
other on at least a quarterly basis regarding progress [*] DDP/SQL in
accordance with an agree-to [*] schedule prepared by CableData.  To
facilitate such consultations and to support their mutual efforts under this
Agreement, the parties shall establish a Joint Planning Committee composed of
representatives designated by each party.  This body shall meet at least once
per calendar quarter during the term of this Agreement, and more frequently
as deemed necessary by the parties.  The Joint Planning Committee shall consult
on the [*] DDP/SQL [*] schedules, or other aspects of cooperation between the 
parties as contemplated by this Agreement.  Among the representatives to the 
Joint Planning Committee designated by each party, one (1) person shall be a 
[*] to speak for that party with respect to [*] matters.  The designated 
technical representative for CableData shall be its [*].  IBM shall notify 
CableData in writing of the name of the designated technical representative 
for IBM within fourteen (14) days following the execution of this Addendum by 
both parties.  The parties' designated representatives to the Joint Planning 
Committee may be replaced at any time, by written notice of the designating 
party to the other


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                        - 3 -

<PAGE>

party.  The Joint Planning Committee shall meet in locations and at times
reasonably acceptable to both parties.  Each party shall be responsible for its
own costs and expenses in attending and participating in meetings of the Joint
Planning Committee.

                                     ARTICLE III
                                  FINANCIAL MATTERS

    Section 3.1  [*].  To assist CableData in financing a
portion of the costs and expenses to be incurred by CableData [*] DDP/SQL
as contemplated by this Addendum, [*]:

         (a)  IBM shall pay CableData an initial installment of [*] on
July 1, 1993.

         (b)  IBM shall pay CableData [*] each, on the first business day of 
each calendar quarter, commencing on October 1, 1993, provided, however, that 
IBM will continue to pay such installments only so long as the [*] referenced 
in Section 2.4 is substantially being met.

         (c)  In the event that the parties do not enter into the further
business relationship contemplated in Section 4.1 by January 1, 1994, then
further installment payments shall be held in abeyance until such business
relationship is entered into.  If no such relationship is entered into by
February 1, 1994, CableData shall repay to IBM installments previously received
under this Addendum and shall not be entitled to the remaining installments, if
any.

         (d)  In the event that CableData does not make an Initial Public
Disclosure (as defined Section 4.5(b)) by January 1, 1994, then further
installment payments shall be held in abeyance until such Initial Public
Disclosure is made.  If such Initial Public Disclosure is not made by February
1, 1994, CableData shall repay to IBM installments previously received under
this Addendum and shall not be entitled to the remaining installments, if any.


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                        - 4 -

<PAGE>

    Section 3.2  (a)  OBLIGATIONS WITH REGARD TO FUNDING PROVIDED UNDER THE
STRATEGIC BUSINESS AGREEMENT.  The parties acknowledge that, for purposes of
Section 3.2 of the Strategic Business Agreement, this Addendum constitutes an
agreement regarding CableData marketing in the United States of a CableData
subscriber management software product comparable in function to DDP/I on an IBM
platform and that, accordingly, pursuant to Section 3.2(a) of the Strategic
Business Agreement, all payments that would otherwise be due under Section
3.2 of the Strategic Business Agreement after the date of this Addendum are
hereby suspended.  In accordance with Section 3.2 of the Strategic Business
Agreement as now modified, such payments shall continue to accrue (up to a
maximum of [*] less payments previously made under such Section 3.2 to
IBM) until the earlier of (i) the date on which IBM has invoiced an aggregate of
[*] of equipment sold (excluding sales by IBM to IBM's leasing
subsidiary and excluding sales of IBM PCs and associated software licenses for
which the IBM Central California Trading Area does not receive credit by IBM and
excluding used equipment sales by any entity) or leased, software licensed or
services provided by IBM in the United States for use with DDP/SQL on an IBM
platform or (ii) the date this Addendum or the Strategic Business Agreement
expires or terminates.  If (i) is the earlier date, CableData shall not be
required to pay to IBM any amounts suspended hereunder or any other remaining
amounts due under this Addendum or Section 3.2 of the Strategic Business
Agreement.  If (ii) is the earlier date, CableData shall pay to IBM the total
amount of the suspended payments hereunder; provided, however, that if this
Addendum or the Strategic Business Agreement are terminated pursuant to Section
6.2(a) due to breach by IBM, then CableData shall not be required to pay to IBM
any such amounts.

         (b)  OBLIGATIONS WITH REGARD TO FUNDING PROVIDED UNDER THIS ADDENDUM. 
If this Addendum terminates or expires prior to the date that on which IBM has
invoiced an aggregate of [*] of equipment sold (excluding sales by IBM
to IBM's leasing subsidiary and excluding sales of IBM PCs for which the IBM
Central California Trading Area does not receive credit by IBM and excluding
used equipment sales by any entity) or leased, software licensed or services
provided by IBM in the United States for use with DDP/SQL on an IBM platform in
addition to the [*] referenced in Section 3.2(a) above, then CableData
shall pay to IBM a prorated portion of [*], which proration shall be
a percentage that is equal to the percentage by which the additional amounts
invoiced in excess of those set forth in Section 3.2(a) were short of
[*], provided, however, that if this Addendum or the Strategic Business
Agreement are terminated pursuant to Section 6.2(a) due to breach by IBM, then
CableData shall not be required to pay to IBM any such amounts.


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


                                        - 5 -

<PAGE>

         (c)  REPORTING UNDER SECTION 3.2(a)(i) AND 3.2(b).  The parties
understand that sale, lease, license or service amounts in Sections 3.2 (a)(i)
and 3.2(b) are for software, hardware or services provided to the end user by
any entity, except as specifically excluded above, to the extent that IBM
invoices some entity at some point for such hardware, software or services
provided to the end-user.  CableData shall periodically during the term of this
Agreement provide reports to IBM setting forth sales, leases, licenses and
services for which CableData determines should be credited under Section
3.2(a)(i) or 3.2(b).  IBM shall have thirty (30) days to correct, verify or
dispute in good faith the report and the amount claimed therein.

                                      ARTICLE IV
                              OTHER AREAS OF COOPERATION

    Section 4.1  (a) ADDITIONAL BUSINESS RELATIONSHIP.  Following the signature
of this addendum by both parties, CableData and IBM shall begin good faith
discussions for the purpose entering into, on or before December 31, 1993, an
additional business relationship applicable to the marketing of IBM products for
use with DDP/SQL.

    It is expected that this business relationship will incorporate the form
and substance of an existing IBM alternate marketing channel.  The choice of
such channel is at the election CableData. CableData's election is subject to 
CableData's acceptance of the applicable  alternate marketing channel's terms
and conditions and IBM's approval of CableData for such channel.

         (b)  [*].  If, at any time during the term of the Strategic Business 
Agreement, IBM enters into [*] business relationship to that entered into by 
the parties pursuant to Section 4.1(a) [*] (specifically, without limiting 
the generality of the foregoing, any person or entity that provides 
subscriber management products or [*], which is [*] the terms or conditions 
provided to CableData under its business relationship with IBM, [*].

    Section 4.2  IBM [*] CENTER IN SACRAMENTO.  CableData shall cooperate in 
assisting IBM to develop understanding of [*] in Sacramento, California.  
Such cooperation by CableData shall include [*].  In addition, CableData 
shall assist, [*],


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                        - 6 -

<PAGE>

[*] to customers of CableData who are actual or prospective users of DDP/SQL 
by sales leads, introductions, references and such other assistance as 
CableData shall determine from time to time in its discretion.  In the event 
IBM successfully markets such selected services and software for which 
CableData is eligible to receive a fee under an additional business 
relationship with IBM, IBM will still pay such fee to CableData.

    Section 4.3  TECHNICAL DIRECTION AND INFORMATION.  The advance notices of
new product developments and releases and forecasts of 12 to 18-month trends and
directions required pursuant to Section 4.2 of the Strategic Business Agreement
shall after the date of this Addendum also be required with respect to new
product developments and releases, and to such forecasts, by each party that its
technical representative under the Strategic Business Agreement has determined
have applicability and appropriateness to DDP/SQL.  All such notices and
forecasts shall be subject to the same restrictions as otherwise apply under
Section 4.2 of the Strategic Business Agreement.

    Section 4.4  INFORMATION.  The evaluation of [*] with respect to
DDP/I required pursuant to Section 4.3(c) of the Strategic Business Agreement
shall after the date of this Addendum also be provided by IBM with respect to
DDP/SQL [*].

    Section 4.5  MARKETING SUPPORT.

         (a)  [*] MARKETING MANAGER (CLIENT EXECUTIVE).  Within thirty (30) 
days following the date of this Addendum, either (i) IBM shall add the 
primary responsibility for managing and facilitating, as required, IBM's 
cooperation with CableData in marketing DDP/SQL [*] (ii) IBM shall appoint, 
for a minimum of two (2) years and thereafter shall have on its staff in 
local IBM offices in the Sacramento, California area during the term of this 
Addendum for such time as CableData [*] DDP/SQL [*].

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                        - 7 -

<PAGE>

         (b)  JOINT MARKETING EFFORTS AND PUBLICITY.  The parties agree that
there shall be no public dissemination or release of information regarding this
Addendum or their relationship pursuant to this Addendum until such time as
CableData shall deem appropriate.  It is CableData's intent to disclose to its
User's Group at a meeting on [*] at the National Cable Television Convention 
in [*], CableData's intention [*], and to disclose to such Users Group that 
disclosure of the UNIX-based alternate platform vendor shall be available 
within 45-60 days.  It is CableData's further intention that, no later than 
[*], it will disclose that the [*] (the "Initial Public Disclosure").  IBM 
understands that premature release of information could be extremely 
injurious to CableData.  At such time as CableData shall deem appropriate for 
release of information, IBM and CableData shall cooperate in preparing and 
disseminating an initial press release describing their relationship pursuant 
to this Addendum, and subsequent press releases concerning [*] DDP/SQL [*] 
pursuant to this Addendum, as appropriate.  The designated representative 
appointed by each of CableData and IBM pursuant to Section 4.4(b) of the 
Strategic Business Agreement to coordinate the parties' joint participation 
in business and trade shows, exhibitions, and similar events, cooperative 
marketing and communications with distributors and customers, shall also 
coordinate such joint participation by the parties with respect to DDP/SQL. 
Notwithstanding the foregoing or any other provision of this Addendum or the 
Strategic Business Agreement to the contrary, neither party shall release any 
press release mentioning the relationship or activities under this Addendum 
during the term of the Strategic Business Agreement without the prior written 
approval of the designated representative of the other. Without limiting the 
generality of the foregoing sentence, IBM shall not, without the prior 
written consent of CableData's designated representative, disclose the 
existence or terms of the domestic relationship or activities within the U.S. 
under this Addendum to any party, including without limitation any employee 
or agent of CableData, not identified in writing by CableData to IBM.

    Section 4.6  SALES SUPPORT.

         (a)  IBM shall provide reasonable training and assistance to
CableData's direct sales force in selling [*] products at
IBM's then-current list prices for such training.

         (b)  IBM shall further provide [*] information to
CableData from IBM's [*] Center in Sacramento.


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                        - 8 -

<PAGE>

    Section 4.7  EQUIPMENT UNDER IBM RISC SYSTEM/6000 DEVELOPER DISCOUNT 
PROGRAM.  CableData shall be entitled to purchase [*] systems at a discount of 
[*] pursuant to the terms and conditions set forth in Attachment A to this 
Addendum.

    Section 4.8  CURE FOR FAILURE TO ENTER INTO ADDITIONAL BUSINESS
RELATIONSHIP.  Notwithstanding the provisions of Section 3.1(c), if the business
relationship is not entered into by January 1, 1994, the parties shall continue
to negotiate in good faith for up to one (1) additional month.  If, during this
period, the business relationship is entered into, the payment that would have
been made on January 1, 1994, shall be paid immediately to CableData and further
installments shall be paid in accordance to the original schedule.

    Section 4.9  CLONES.  CableData is free to sell clones of the RISC
System/6000 not manufactured by IBM for use with DDP/SQL provided that it
mutually agrees with IBM on a structure for allowing IBM to participate in these
opportunities to a degree which is similar to IBM's participation in the porting
of DDP/SQL.

                                      ARTICLE V
                                  PROPRIETARY RIGHTS

    Section 5.1  INCORPORATION BY REFERENCE.  The terms of Sections 5.1, 5.4 and
5.5 of the Strategic Business Agreement shall apply fully to the activity
contemplated by this addendum.

    Section 5.2  LICENSES.

         (a)  For the term of the Strategic Business Agreement, CableData
grants to IBM a non-exclusive and nontransferable license to use one (1) copy of
DDP/SQL in machine-executable code only, for IBM's internal purposes only in
connection with this Addendum and to make one (1) archival copy for back-up
purposes.

         (b)  IBM hereby grants to CableData, its subsidiaries and
distributors, and its and their respective customers, mediate and immediate, an
irrevocable, non-exclusive, worldwide, nontransferable, paid-up license under
all present and future IBM patents to make, have made, use, have used, lease,
license, sell and/or otherwise transfer DDP/SQL, DDP/I and DDP/IT, including
derivative works thereof, either alone or in combinations with equipment,
insofar as any


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                        - 9 -

<PAGE>

infringement of such patents would otherwise arise in whole or in part from 
the performance of IBM's obligations under this Addendum.

     (c)  Each party grants the other party only the licenses specified. No 
other licenses, including licenses under patents, are granted.

     Section 5.3  CONFIDENTIALITY. The existence and terms of this Addendum 
shall be deemed to be confidential and subject to the restrictions applicable 
to confidential information as set forth in Section 5.3 of the Strategic 
Business Agreement, which shall apply fully to the activity contemplated by 
this Addendum.


                                  ARTICLE VI
                            TERM AND TERMINATION

     Section 6.1  TERM AND TERMINATION. This Addendum shall become effective 
on the date first written above and shall continue in effect thereafter until 
January 19, 1998, on which date it shall expire. Any termination of the 
Strategic Business Agreement in accordance with its terms shall be deemed not 
to effect a simultaneous termination of this Addendum and any termination of 
this Addendum in accordance with its terms shall be deemed not to effect a 
simultaneous termination of the Strategic Business Agreement, unless either 
party elects otherwise.

     Section 6.2  TERMINATION.

     (a)  TERMINATION FOR BREACH. Either party may terminate this Addendum, 
effective upon dispatch of written notice of termination to the other party, 
upon the breach by such other party of any of its material obligations under 
this Addendum and failure to cure such breach within ninety (90) days after 
receipt of notice specifying the breach. The right to terminate shall be in 
addition to any other remedies available in law or equity, which remedies are 
expressly retained.

     If IBM terminates this Addendum under this Section 6.2(a) for breach of 
this Addendum by CableData, then, on the effective date of such termination, 
the provisions of Section 3.2(b) of this Addendum shall apply.



                                    - 10 -
<PAGE>

     If CableData terminates this Addendum under this Section 6.2(a) for 
breach of this Addendum by IBM, then, on the effective date of such 
termination, IBM shall pay to CableData any remaining scheduled installments 
that would have been due to CableData in subsequent months under Section 3.1 
of this Addendum if the termination had not occurred, up to a total of 
[*]. This is IBM's sole responsibility for breach.

     (b)  TERMINATION BY CABLEDATA FOR REASONS OTHER THAN IBM BREACH. 
CableData may in its sole discretion, upon ninety (90) days' prior written 
notice to IBM, terminate this Addendum at any time, without breach by IBM. On 
the effective date of termination under this Section 6.2(b), CableData shall 
refund to IBM all funds advanced to CableData under Section 3.1 of this 
Addendum.

     (c)  TERMINATION BY IBM FOR REASONS OTHER THAN CABLEDATA BREACH. IBM may 
in its sole discretion, upon ninety (90) days' prior written notice to 
CableData, terminate this Addendum at any time, without breach by CableData. 
On the effective date of termination under this Section 6.2(c), IBM shall pay 
to CableData any remaining scheduled installments that would have been due to 
CableData in subsequent months under Section 3.1 of this Addendum if the 
termination had not occurred.

     Section 6.3  EFFECT OF EXPIRATION OR TERMINATION. Except as otherwise 
expressly stated in Section 6.2 of this Addendum or in the following 
sentence, upon any expiration or termination of this Addendum all rights and 
obligations of each party in this Addendum shall expire and be of no further 
force or effect, and each party shall be entitled to retain all funds, fees 
and payments that it has received from the other party under this Addendum 
and prior to the effective date of such expiration or termination. 
Notwithstanding the foregoing, no expiration or earlier termination of this 
Agreement shall relieve either party of its rights or obligations as 
described in Article V of this Addendum, which rights and obligations are 
expressly intended to survive any such expiration or termination.

                                  ARTICLE VII
                                    GENERAL


     Section 7.1  BALANCE OF STRATEGIC BUSINESS AGREEMENT UNCHANGED. Except 
as expressly provided in this Addendum, all provisions, terms and conditions 
of the Strategic Business Agreement shall remain unchanged and in full force 
and effect.


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                  - 11 -

<PAGE>

     Section 7.2  INCORPORATION BY REFERENCE. The terms of Articles V and VII 
of the Strategic Business Agreement are incorporated by reference herein and 
shall be deemed a part of this Addendum as fully as if set forth in their 
entirety herein.

     IN WITNESS WHEREOF, the parties have executed this Addendum as of the 
date and year first written above.

"CABLEDATA"                            "IBM"

U.S. COMPUTER SERVICES,                INTERNATIONAL BUSINESS
a California corporation               MACHINES CORPORATION,
                                       a New York corporation



By: /s/ James C. Castle                By: /s/ W. Bernard Bowler
   --------------------------             -----------------------------
         James C. Castle                        W. Bernard Bowler
    Chief Executive Officer               Central California Trading Area
                                                  General Manager




                                 - 12 -

<PAGE>

                               ATTACHMENT A TO ADDENDUM

DATA BASE : ALET -                                                     PAGE: 1

- ------------------------------------------------------------------------------

NUMBER         392-216
DATE           920922
CATEGORY       GD00, GD70
TYPE           Marketing
TITLE          IBM RISC SYSTEM/6000 DEVELOPER DISCOUNT PROGRAM MODIFICATION
CORRECTN              (CORRECTED ON SEPTEMBER 25, 1992)
                      In the title, the word "Promotion" has been changed to
               "Program".
ABSTRACT              The IBM RISC System/6000 (R) Developer Discount Program 
               has been modified again. This document supersedes the 
               following IBM Marketing Announcements:
               -   391-068, dated May 14, 1991
               -   391-156, dated October 2, 1991
               -   391-201, dated November 26, 1991
               -   392-017, dated January 21, 1992
               -   392-055, dated March 17, 1992
               -   392-081, dated April 21, 1992.
                      Effective immediately, the IBM Customer Agreement (ICA) 
               Exhibit for the IBM RISC System/6000 Developer Discount 
               (Z125-4742) has been withdrawn.
                      Products eligible under this program are listed in the 
               attached IBM RISC System/6000 Developer Discount Program's 
               Machines and Licensed Programs list, which has been updated to 
               include the following products:
                      Processors:
               -   IBM RISC System/6000 7013 Model 580
               -   IBM RISC System/6000 7015 Model 980
               -   IBM 7245 Power Visualization System Models 001, 002, 003, 
                   and 004.
                      Model Conversions:
               -   IBM RISC System/6000 Model 7013 Model 53H to 58F
               -   IBM RISC System/6000 Model 7013 Model 550 to 58F
               -   IBM RISC System/6000 Model 7013 Model 560 to 58F
               -   IBM RISC System/6000 Model 7015 Model 930 to 98E
               -   IBM RISC System/6000 Model 7015 Model 950 to 98E
               -   IBM RISC System/6000 Model 7015 Model 95E to 98E
               -   IBM RISC System/6000 Model 7015 Model 970 to 98E
               -   IBM RISC System/6000 Model 7015 Model 97E to 98E
                      Displays:
               -   IBM 1091 Model O51 Display.
                      Storage Media:
               -   IBM 7204 Model 001 SCSI Disk Drive
               -   IBM 7206 Model 001 Tape Drive
               -   IBM 7207 Model 012 Tape Drive
               -   IBM 7208 Model 011 Tape Drive
               -   IBM 7209 Model 001 Optical Disk Drive.
               Peripherals:
               -   IBM 7246 Model 001 Video Controller
                      Eligible Programs:

<PAGE>

DATA BASE : ALET -                                                     PAGE: 2


               -   Encina Server for AIX/6000 (TM) (5696-240)
               -   Encina Structured File Service for AIX/6000 (5696-237)
               -   Encina Monitor for AIX/6000 (5696-239)
               -   Encina Peer-to-Peer Executive for AIX/6000 (5696-238)
               -   Encina Peer-to-Peer Gateway for AIX/6000 (5696-347)
               -   AIX (R) Visualization Data Explorer/6000 (5756-057)
               -   AIX High-Availability Cluster Multi-Processing/6000 
                   (5765-111)
               -   AIX DCE Base/6000 (5765-117)
               -   AIX DCE Security Server/6000 (5765-118)
               -   AIX DCE Cell Directory Server/6000 (5765-119)
               -   AIX DCE Enhanced File Server/6000 (5765-121).
                      This will be the last dedicated IBM Marketing 
               Announcement to modify the list of products available through 
               this program. In the future, customers should contact 
               marketing representatives to determine new product eligibility.
                      No other changes have been made to the existing terms 
               and conditions of this program, which is described below in 
               its entirety.
                      The RISC System/6000 Developer Discount Program 
               provides eligible customers with the opportunity to acquire 
               workstations, AIX Development Toolkits, selected peripherals, 
               and licensed RISC System/6000 programs at a substantial 
               discount. Eligible customers include selected hardware and 
               software vendors, and selected IBM Academic Information 
               Systems (ACIS) application authors.
                      No other discount or promotional offering can be 
               combined with this program. IBM reservers the right to modify 
               or withdraw this offering at any time.
                (R) Registered trademark of International Business Machines
                  Corporation.
                (TM) Trademark of International Business Machines Corporation.
PRODNO           7013     7208    5696-240    5696-347    5765-118
                 7015     7209    5696-237    5756-057    5765-119
                 7204     1091    5696-239    5765-111    5765-121
                 7206     7246    5696-238    5765-117







<PAGE>

DATA BASE : ALET  -  IBM INTERNAL USE ONLY                             PAGE:   3

IMKTG    MARKETING INFORMATION
              This program is intended to increase the availability of quality
         products by providing an attractively priced RISC System/6000
         development offering to selected hardware and software vendors, and
         selected ACIS application authors.
              In the future, products will be added to the program based on the
         following guidelines:
         -    The product must be eligible for a Demonstration Discount of [*];
              application programs eligible for a Demonstration Discount,
              however, do not qualify for the Developer Discount.
         -    A hardware product must attach to the RISC System/6000.  A
              software product must be able to run on the RISC System/6000.
         MARKETING CHANNELS
         -    IBM US -- Direct
         MARKETING ACTION REQUIRED
              Marketing representatives should become familiar with this
         program and encourage the participation of qualifying developers. 
         Only products that can be ordered under contract number 44871 are
         eligible for a developer's discount.
              If you have questions on information contained in this document,
         send a PROFS (R) note to ATLVM1(SVDDP).
IADMIN   ADMINISTRATIVE INFORMATION
         PROGRAM ELIGIBILITY
         Customers must be approved by Software Vendor Operations.  Approvals
         will be limited to US-based developers who agree to develop and market
         (or make available) RISC System/6000 hardware or software products.
              To initiate a request for a Developer Discount, submit a
         completed RS6000SV form, which is available on AEFORMS.  For
         additional information, send a PROFS note to ATLVM1(SVDDP).
         CONTRACT ADMINISTRATION
         Each new approved developer must sign the IBM Customer Agreement
         Attachment for IBM RISC System/6000 Developer Discount (Z125-4740),
         and the IBM Customer Agreement Addendum for the IBM RISC System/6000
         Developer Discount (Z125-4741).  Upon completion of development, the
         developer must sign the IBM Customer Agreement Certification of
         Compatibility with the IBM RISC System/6000 (Z125-4743).
         ORDERING INFORMATION
              When ordering the eligible products under this program, follow
         the normal ordering instructions and use contract number 44871.
              This special contract number will enable the program orders to be
         processed at the stated discount.  If the special contract number was
         omitted at order entry, add it by using MODIFY prior to shipment or
         PURPREP after shipment but prior to installation.
              Orders are based on a completed Addendum for IBM RISC System/6000
         Developer Discount (Z125-4741) that is signed by the customer.
         ATTACHMENT INFORMATION
         The following are related to this announcement letter:
         -    392-216-1A*  Z125-4740, IBM Customer Agreement Attachment for IBM
              RISC System/6000 Developer Discount
         -    392-216-1B*  Z125-4741, IBM Customer Agreement Addendum for IBM


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

<PAGE>

DATA BASE : ALET  -  IBM INTERNAL USE ONLY                             PAGE:   4

              RISC System/6000 Developer Discount
         -    392-216-1C*  Z125-4743, IBM Customer Agreement Certification of
              Compatibility with the IBM RISC System/6000
                 * This item may be printed on your 3820 printer via the
         following method:
         -    While browsing this announcement letter on HONE, enter the
              fastpath name "DAWNHOST LIST" (to allow selective printing from
              list) or "DAWNHOST ALL" (to print all asterisked items for this
              letter) at the HONE entry prompt arrow.

<PAGE>

DATA BASE : ALET  -                                                    PAGE:   5

OVERVIEW ADDITIONAL INFORMATION
         For each development machine purchased, the developer may select RISC
         System/6000 peripherals at a 50% discount.  In addition, for each
         machine obtained, one copy of each RISC System/6000 program on the
         attached list may be acquired at a 50% discount.
              ACIS reserves the right to select, from a nominated pool of
         candidate applications, only those applications that ACIS wants
         supported, and thereby selectively offers the faculty/researcher
         application author the opportunity to participate in the RISC
         System/6000 Developer Discount Program.
              Hardware vendors will be selected based on their ability to
         provide products that enhance the overall marketability of the RISC
         System/6000 product family, with emphasis on products not currently
         part of the RISC System/6000 offering.
CUSTINFO PUBLICATIONS
              Refer to the individual announcements for publications concerning
         the hardware, licensed programs, and peripherals in this offering.
         EDUCATION SUPPORT
              Developers wishing to subscribe to a technical quarterly
         publication, THE AIXPERT, should call 800-627-8363.
              Other users may subscribe by ordering bill-of-forms number
         GBOF-1199 from the Systems Library Subscription Service (SLSS).  Users
         without electronic access to SLSS may subscribe using SLSS order
         number G120-1816 and specify GBOF-1199 as the publication number.
ORDERING TERMS AND CONDITIONS
         -    An approved developer must sign the ICA and its Attachment for
              IBM RISC System/6000 Developer Discount (Z125-4740), along with
              the ICA Addendum for the IBM RISC System/6000 Developer Discount
              (Z125-4741).
         -    The developer must agree to use the products acquired for each
              development system to develop, test, demonstrate and/or maintain
              hardware and software products developed under this program for a
              period of 12 months following the shipment of the IBM products.
         -    Upon completion of such development, the developer will provide
              to IBM the IBM Customer Agreement Certification of Compatibility
              with the IBM RISC System/6000 (Z125-4743), and announce and make
              available a product that is compatible with the RISC System/6000.
         -    Developers who have completed development of their RISC
              System/6000-compatible product and have submitted the required
              Certification of Compatibility (Z125-4743) to IBM have an
              additional 12 months to acquire eligible products at a discount
              for their installed development systems.  These products include
              only model conversions, peripherals and programs eligible for a
              developer discount.
         -    Products acquired under this development program are intended
              primarily for development purposes and not for resale, sub-lease,
              or rental for a period of 12 months following the shipment of the
              IBM product.
         -    A purchase limit of ten RISC System/6000 systems exists per
              development establishment.  Up to ten Xstation terminals may be

<PAGE>

DATA BASE : ALET  -                                                    PAGE:   6

              purchased with each system.
         -    On request by the developer, newly announced products eligible
              for a developer's discount may be added to a current contract.
         -    IBM reserves the right to limit the number of RISC System/6000
              systems available to each development establishment.
              IBM RISC SYSTEM/6000 DEVELOPER DISCOUNT MACHINES AND LICENSED
                                       PROGRAMS
         The following hardware and licensed programs are eligible for a 50%
         discount:
         ELIGIBLE HARDWARE
         Processors:
          IBM RISC System/6000 7011 Model 220
          IBM RISC System/6000 7011 Model 22G
          IBM RISC System/6000 7011 Model 22W
          IBM RISC System/6000 7012 Model 32H
          IBM RISC System/6000 7012 Model 340
          IBM RISC System/6000 7012 Model 350
          IBM RISC System/6000 7013 Model 52H
          IBM RISC System/6000 7013 Model 53H
          IBM RISC System/6000 7013 Model 550
          IBM RISC System/6000 7013 Model 560
          IBM RISC System/6000 7013 Model 580
          IBM RISC System/6000 7015 Model 950
          IBM RISC System/6000 7015 Model 970
          IBM RISC System/6000 7015 Model 980
          IBM 7245 Power Visualization System Models 001,
           002, 003, and 004
         Model Conversions:
          IBM RISC System/6000 7012 Model 320 to 32E
          IBM RISC System/6000 7013 Model 520 to 530
          IBM RISC System/6000 7013 Model 520 to 53E
          IBM RISC System/6000 7013 Model 520 to 55E
          IBM RISC System/6000 7013 Model 530 to 55E
          IBM RISC System/6000 7013 Model 530 to 56F
          IBM RISC System/6000 7013 Model 53H to 55E
          IBM RISC System/6000 7013 Model 53H to 56F
          IBM RISC System/6000 7013 Model 53H to 58F
          IBM RISC System/6000 7013 Model 540 to 55S
          IBM RISC System/6000 7013 Model 550 to 56F
         ELIGIBLE HARDWARE
         Model Conversions:
          IBM RISC System/6000 7013 Model 550 to 58F
          IBM RISC System/6000 7013 Model 560 to 58F
          IBM RISC System/6000 7015 Model 930 to 97E
          IBM RISC System/6000 7015 Model 930 to 98E
          IBM RISC System/6000 7015 Model 950 to 97E
          IBM RISC System/6000 7015 Model 950 to 98E
          IBM RISC System/6000 7015 Model 95E to 97E
          IBM RISC System/6000 7015 Model 95E to 98E
          IBM RISC System/6000 7015 Model 970 to 98E
          IBM RISC System/6000 7015 Model 97E to 98E
         Displays:

<PAGE>

DATA BASE : ALET  -                                                    PAGE:   7

          IBM 1091 Model 051 Display
          IBM 5081 Model 16 Graphics Display
          IBM 5081 Model 19 Graphics Display
          IBM 6091 Model 19 Color Display
          IBM 6091 Model 16 Color Display
          IBM 6091 Model 23 Color Display
          IBM 8507 Model 001 Personal System/2 (R)
           Monochrome Display
          IBM 8508 Model 001 Personal System/2 Monochrome
           Display
          IBM 8512 Model 001 Personal System/2 Color
           Display
          IBM 8513 Model 001 Personal System/2 Color
           Display
          IBM 8514 Model 001 Personal System/2 Color
           Display
            IBM RISC SYSTEM/6000 DEVELOPER DISCOUNT MACHINES AND LICENSED
                                       PROGRAMS
                                       CONT'D.
         ELIGIBLE HARDWARE
         Displays:
          IBM 8515 Model 021 Personal System/2 Color
           Display
          IBM 8517 Model 001 Color Display
          IBM 8518 Model 001 Color Display
         Maximum Quantity = one display unit per processor.
         Storage Media:
          IBM 7203 Model 001 External Portable Disk Drive
          IBM 7204 Model 001 SCSI Disk Drive
          IBM 7204 External Disk Drive Model 320
          IBM 7206 Model 001 Tape Drive
          IBM 7207 Model 001 150 MB External  1/4-Inch
           Cartridge Tape Drive
          IBM 7207 Model 011 525 MB External  1/4-Inch
           Cartridge Tape Drive
          IBM 7207 Model 012 Tape Drive
          IBM 7208 Model 001 2.3 GB External 8mm Tape Drive
          IBM 7208 Model 011 Tape Drive
          IBM 7209 Model 001 Optical Disk Drive
          IBM 7210 Model 001 External CD-ROM Drive
          IBM 9333 Model 10 High-Performance Disk
           Subsystem
          IBM 9333 Model 500 High-Performance Disk
           Subsystem
          IBM 9334 Model 10 Drawer Expansion Unit
          IBM 9334 Model 500 Deskside Expansion Unit
          IBM 9348 Model 012 External  1/2-Inch, 9-Track Tape
           Drive
         Maximum Quantity = one of each item listed per processor.
         Peripherals:
          IBM 6093 Model 11 Cursorpad
          IBM 6093 Model 12 Tablet

<PAGE>

DATA BASE : ALET -                                                     PAGE: 8


               IBM 6094 Model 10 Dials
               IBM 6094 Model 20 Lighted Programmable
                Functional Keyboard
               IBM 6097 Model 2A Screen Printer
               IBM 6097 Model 2B Screen Printer
               IBM 6180 Model 1 Color Plotter
               IBM 6180 Model 2 Color Plotter
               IBM 6184 Model 1 Color Plotter
               IBM 6185 Model 1 Color Plotter
               IBM 6185 Model 2 Color Plotter
               IBM 7202 Model 900 Expansion Rack
               IBM 7235 Model 1 POWERgraphics GTO
               IBM 7235 Model 2 POWERgraphics GTO
               IBM 7246 Model 001 Video Controller
              Maximum Quantity = one of each item listed per processor.
              Xstation:
               IBM 7010 Model 120 Xstation
               IBM 7010 Model 130 Xstation
              Maximum Quantity = 10 Xstations per processor.
              Features:
               All features for eligible hardware
              ELIGIBLE LICENSED PROGRAMS
              Program
              Number       Program Name
              5601-230     AIX Personal graPHIGS (TM) Programming
                            Interface/6000
              5601-248     AIX XL FORTRAN Compiler/6000
              5601-251     AIX XL Pascal Run Time Environment/6000
              5601-253     AIX Network Management/6000
              5601-254     AIX XL Pascal Compiler/6000
              5601-256     AIX 3278/79 Emulation/6000
              5601-257     AIXwindows (R) Environment/6000
              5601-258     AIX VS COBOL Compiler/6000
              5601-259     AIX VS COBOL Run Time Environment/6000
              5601-260     AIX 3270 Host Connection Program/6000
              5601-263     AIX Personal Computer Simulator/6000
              5601-266     AIX XL FORTRAN Run Time Environment/6000
              5601-287     AIX System Network Architecture Services/6000
              5601-386     AIX Computer Graphics Interface Toolkit/6000
              5601-457     AIX Xstation Manager (TM)/6000
              5696-037     AIX Software Development Environment (SDE)
                            Workbench/6000
              5696-108     AIX InfoCrafter (TM) Composer/6000
              5696-137     AIX Software Development Environment (SDE)
                            Integrator/6000
              5696-236     NetWare for AIX/6000 from IBM v3.11
              5696-237     Encina Structured File Service for AIX/6000
              5696-238     Encina Peer-to-Peer Executive for AIX/6000
              5696-239     Encina Monitor for AIX/6000
              5696-240     Encina Server for AIX/6000
              5696-347     Encina Peer-to-Peer Gateway for AIX/6000
              5706-291     AIX Ada/6000

<PAGE>

DATA BASE : ALET -                                                     PAGE: 9


              5706-294     AIX Ada Run Time Environment/6000
              5756-011     AIX X-Windows 3270 Emulator Version 1
              5756-027     AIXwindows Interface Composer/6000
              5756-030     AIX Version 3 for RISC System/6000
              5756-057     AIX Visualization Data Explorer/6000
              5756-091     Professional CADAM (1) 3D Surface Design
              5756-092     Professional CADAM Manufacturing System
              5756-093     Professional CADAM Machining Center
              5756-094     Professional CADAM Interactive Design
              5756-095     Professional CADAM Access IUE (2)
              5756-096     Professional CADAM Interactive Solids Design (2)
              5765-004     AIX Graphics Plotting System/6000
              5765-005     AIX Graphics File Translator/6000
              5765-018     AIX XL FORTRAN Compiler/6000
              5765-019     AIX XL FORTRAN Run Time Environment/6000
              5765-035     AIX XL C+ +Compiler/6000
              5765-037     AIX MVS Library Connector/6000
              5765-039     AIX Configuration Management Version Control
                            Server/6000
              5765-069     AIX Configuration Management Version Control
                            Client/6000
              5765-077     AIX NetView (R)/6000
              5765-111     AIX High-Availability Cluster
                            Multi-Processing/6000 (HACMP/6000)
              5765-117     AIX DCE Base/6000
              5765-118     AIX DCE Security Server/6000
              5765-119     AIX DCE Cell Directory Server/6000
              5765-121     AIX DCE Enhanced File Server/6000
               (1) PROFESSIONAL CADAM is a trademark of Dassault Systemes of 
                 America licensed to IBM Corporation.
               (2) IUE and Interactive Solids Design are trademarks of 
                 Dassault Systemes of America.
              Maximum Quantity = one of each licensed program listed per 
               processor. 
                    Notes: Developers may purchase a maximum of 
              one of each unique peripheral per development system. However, 
              with Xstation terminals, a maximum of ten per system may be 
              purchased, and a maximum of one display per Xstation may be 
              purchased.
                    Development discounts will be applied to the eligible 
              hardware, licensed programs, and peripherals ordered as part of 
              the initial installation. Within the limitations described, 
              peripherals, licensed programs and hardware MESs may be ordered 
              after the initial purchase and receive the developer discount. 
              However, these additional purchases will be restricted to the 
              terms of the Attachment for IBM RISC System/6000 Developer 
              Discount.
                    For programs licensed under the primary license 
              charge/annual license charge option, the 50% discount applies 
              to the primary license charge only. Recurring charges, such as 
              ESS and annual license charge, do not qualify for the 50% 
              discount.
                     Software MESs are not eligible for the 50% discount.

              - - -                    END OF PRINTOUT                 - - -

<PAGE>

                                       [LETTERHEAD]

June 4, 1993




Mr. W. Bernard Bowler
Central California Trading Area
General Manager
International Business Machines Corporation
400 Capitol Mall
Sacramento, California 95814

Dear Bernard,

In connection with the Addendum Number One to Strategic Business Agreement by 
and between International Business Machines Corporation ("IBM") and U.S. 
Computer Services ("CableData") entered into on the date of this letter (the 
"Addendum"), this letter confirms that for the term of the Addendum [*]. 
Please confirm that this letter correctly sets forth the agreement between us 
on this subject by signing the enclosed copy of this letter where indicated 
below and returning it to me.

Sincerely,



/s/ James C. Castle


ACCEPTED AND AGREED TO BY:

INTERNATIONAL BUSINESS MACHINES CORPORATION



By: /s/ W. Bernard Bowler
   ---------------------------------
     W. Bernard Bowler
     Central California Trading Area
     General Manager


Date:
     -------------------------------


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

<PAGE>

                    EXHIBIT A TO LETTER DATED JUNE 4, 1993

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


<PAGE>

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
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                                     [LETTERHEAD]

January 19, 1992

Mr. Eric Jungemann
Senior Vice President
U.S. COMPUTER SERVICES
d/b/a CABLEDATA
2969 Prospect Park Drive
Rancho Cordova, CA 95670

Dear Eric:

    Re:  RISC System/6000 Developer Discount and
         RISC System/6000 Internal Use Discount
         ---------------------------------------

This is to confirm and agree that, in order to qualify for the RISC System/6000
Developer Discount Program set forth in Attachment F-2 of the Strategic Business
Agreement dated January 19, 1992 between our companies, [*].

In addition, we agree that the terms and conditions set forth in such Attachment
F-2 of the Strategic Business Agreement will, as to CableData, not be modified
by IBM for a [*].

This is to further confirm and agree that, for a period of [*] from
today's date, IBM will offer to sell to CableData for CableData internal
use, [*].

Sincerely,

/s/John R. Poland

John R. Poland


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                                     [LETTERHEAD]

January 19, 1992

Mr. Jerry Knapp
President
U.S. COMPUTER SERVICES
d/b/a CABLEDATA
2969 Prospect Park Drive
Rancho Cordova, CA 95670

Dear Jerry:

This is to confirm and agree that the business relationship contemplated by the
Strategic Business Agreement between IBM and CableData is for the international
market and that we understand CableData has no current plans for releasing a DDP
product in the U.S. on an IBM platform.  You have informed us and IBM
understands that significant harm to the relationship between CableData and IBM
may result if its sales force solicits CableData's U.S. customers to put
pressure on CableData to release a DDP/I or similar product on an IBM platform
in the U.S., and we will conduct ourselves accordingly.

Sincerely,

/s/John R. Poland

John R. Poland

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                                   [LETTERHEAD]


January 19, 1992

Mr. John R. Poland
General Manager
INTERNATIONAL BUSINESS MACHINES CORPORATION
520 Capitol Mall
Sacramento, CA 95814

Dear John,

    Re:  STRATEGIC BUSINESS AGREEMENT

In connection with the Strategic Business Agreement between International 
Business Machines Corporation (IBM) and U.S. Computer Services (CableData) 
entered into on the date of this letter (the "Agreement"), this letter 
confirms [*]. The governing law and consent to jurisdiction provisions of 
Section 7.4 of the Agreement are incorporated into and apply to this letter 
agreement as if set forth herein in their entirety.  Please confirm that this 
letter correctly sets forth the agreement between us on this subject by 
signing the enclosed copy of this letter where indicated below and returning 
it to me.

Sincerely,

/s/Eric Jungemann

Eric Jungemann

ACCEPTED AND AGREED TO BY:

INTERNATIONAL BUSINESS MACHINES CORPORATION

By: /s/Eric Jungemann /s/John R. Poland
    ----------------------------------------
Title: Sr. VP    General Manager
       -------------------------------------
Date:            1-19-92
      --------------------------------------


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                                                                 EXHIBIT 10.20

ORACLE-Registered Trademark-

                            BUSINESS ALLIANCE PROGRAM AGREEMENT

This Business Alliance Program Agreement (the "Agreement") is between Oracle 
Corporation with its principal place of business at 500 Oracle Parkway, 
Redwood City, California 94065 ("Oracle") and CableData, Inc. (legal name) 
with its principal place of business at 11020 Sun Center Drive, Rancho 
Cordova, CA 95670 (the "Alliance Member").  The terms of this Agreement shall 
apply to each Program license granted and to all services provided by Oracle 
under this Agreement.  When completed and executed by both parties, an Order 
Form shall evidence the Program licenses granted and the services that are to 
be provided.

1.    DEFINITIONS

1.1   "COMMENCEMENT DATE" shall mean the date on which the Programs are 
      delivered by Oracle, or if no delivery is necessary, the Effective 
      Date set forth on the relevant Order Form.                 

1.2   "DESIGNATED SYSTEM" shall mean the computer hardware and operating system
      designated on the relevant Order Form or Sublicense report for use in 
      conjunction with a Sublicensed Program, Development License, or Marketing
      Support License.

1.3   "ORDER FORM" shall mean the document by which the Alliance Member 
      orders Program licenses, Sublicenses, and services, and which is agreed 
      to by the parties.  The Order Form shall reference the Effective Date
      of this Agreement.

1.4   "PRICE LIST" shall mean Oracle's standard commercial fee schedule that 
      is in effect when a Program license, Sublicense, or services are ordered
      by the Alliance Member.

1.5   "PROGRAM" shall mean the computer software in object code form owned or 
      distributed by Oracle for which the Alliance Member is granted a license 
      or grants a Sublicense pursuant to this Agreement; the user guides and 
      manuals for use of the software ("Documentation"); and Updates. "LIMITED
      PRODUCTION PROGRAM" shall mean a Program not specified on the Price List
      or which is designated as Limited Production by Oracle.

1.6   "SUBLICENSE ADDENDA" shall mean the addenda to this Agreement specifying
      additional Sublicense terms and Sublicense rates and fees for the various 
      types of Sublicenses which may be granted by the Alliance Member.

1.7   "SUBLICENSE" shall mean a nonexclusive, nontransferable right granted by 
      or through the Alliance Member to an end user to use an object code copy 
      of the Programs with the Value-Added Package under authority of a 
      Sublicense Addendum. "Sublicensee" shall mean a third party who is granted
      a Sublicense of the Programs with the Value-Added Package for such party's
      own internal data processing purposes and not for purposes of any 
      further distribution.

1.8   "SUPPORTED PROGRAM LICENSE" shall mean a Development License or Marketing
      Support License for which the Alliance Member has ordered Technical
      Support for the relevant time period.  "TECHNICAL SUPPORT" shall mean 
      Program support provided under Oracle's policies in effect on the date 
      Technical Support is ordered.

1.9   "UPDATE" shall mean a subsequent release of a Program which is generally 
      made available for Supported Program Licenses at no additional charge, 
      other than media and handling charges. Update shall not include any 
      release, option or future product which Oracle licenses separately.

1.10  "USER," unless otherwise specified in the Order Form or Sublicense report
      for a user type specified in the Price List in effect when the Program 
      is Sublicensed, shall mean a specific individual employed by the Alliance 
      Member or Sublicensee (as the case may be) who is authorized by such 
      party to use the Programs, regardless of whether the individual is 
      actively using the Programs at any given time.

1.11  "VALUE-ADDED PACKAGE" shall mean the hardware or software products or 
      services having added value which are developed, sold, and/or licensed
      with the Programs to a Sublicensee by the Alliance Member, as provided
      under the applicable Sublicense Addenda.

2.     LICENSES GRANTED

2.1    DEVELOPMENT LICENSES AND TRIAL LICENSES

       A. Oracle giants to the Alliance Member a nonexclusive license to 
       use the Development Licenses the Alliance Member obtains under this 
       Agreeement and applicable Sublicense Addenda, as follows:

       1. to develop or prototype the Value-Added Package on the Designated
       System or on a backup system if the Designated System is inoperative, 
       up to any applicable maximum number of designated Users or other such 
       limitation as may be applicable; 

       2. to demonstrate the Programs to potential Sublicensees solely in 
       conjunction with the Value Added Package; 

       3. to provide training and technical support to employees and to 
       customers solely in conjunction with the Value-Added Package; 

       4. to use the Documentation provided with the Programs in support of 
       the Alliance Member's authorized use of the Programs; and 

       5. to copy the Programs for archival or backup purposes; no other 
       copies shall be made without Oracle's prior written consent.  All 
       titles, trademarks, and copyright and restricted rights notices shall
       be reproduced in such copies.  All archival and backup copies of the 
       Programs are subject to the terms of this Agreement.

       B. The Alliance Member may order temporary trial licenses ("Trial 
       Licenses") for its evaluation purposes only, and not for development 
       or prototype purposes, for use during a period specified in the Order 
       Form.  Each Order Form for Trial Licenses shall clearly state

<PAGE>

       the trial period and shall identify that the order is for a Trial 
       License.

2.2    MARKETING SUPPORT LICENSES
           Oracle grants to the Alliance Member a nonexclusive license to use
       the Marketing Support Licenses the Alliance Member obtains under this 
       Agreement and applicable Sublicense Addenda, as follows:

       A. to demonstrate the Programs to potential Sublicensees solely in 
       conjunction with the Value-Added Package, up to any applicable maximum
       number of designated Users or other such limitation as may be 
       applicable;

       B. to develop customized prototypes of the Value-Added Package for 
       prospective Sublicensees on the Designated System if the Alliance Member 
       does not receive any fees related to the development of such 
       customized prototypes;

       C. to use the Documentation provided with the Programs in support of the 
       Alliance Member's authorized use of the Programs; and 

       D. to copy the Programs for archival or backup purposes; no other copies 
       shall be made without Oracle's prior written consent.  All titles, 
       trademarks, and copyright and restricted rights notices shall be 
       reproduced in such copies.  All archival and backup copies of the 
       Programs are subject to the terms of this Agreement.

2.3   SUBLICENSING

      A. LICENSE TO SUBLICENSE PROGRAMS

          As further set forth in the applicable Sublicense Addenda, Oracle 
      hereby grants the Alliance Member a nonexclusive, nontransferable license
      to market and grant Sublicenses as set forth in such Sublicense Addenda
      and at the rates and fees set forth in such Sublicense Addenda.
      The Alliance Member shall only have the right to Sublicense Programs 
      pursuant to an effective Sublicense Addendum between the parties hereto.

          The Alliance Member shall Sublicense the Programs solely through a 
      written Sublicense agreement as provided under Section 2.3.B. Upon 
      Oracle's request, the Alliance Member shall provide Oracle with a copy 
      of the Alliance Members standard Sublicense agreement.

      B. SUBLICENSE AGREEMENT

          Every Sublicense agreement shall include, at a minimum, contractual 
      provisions which:

      1.  Restrict use of the Programs to object code, subject to the 
          restrictions provided under the applicable Sublicense Addenda and 
          consistent with the Sublicense fees payable to Oracle;

      2.  Prohibit (a) transfer of the Programs except for temporary transfer 
          in the event of computer malfunction; (b) assignment, timesharing 
          and rental of the Programs; and (c) title to the Programs from passing
          to the Sublicensee or any other party;

      3.  Prohibit the reverse engineering, disassembly or decompilation of the 
          Programs and prohibit duplication of the Programs except for a single 
          backup or archival copy;

      4.  Disclaim, to the extent permitted by applicable law, Oracle's 
          liability for any damages, whether direct, indirect, incidental or 
          consequential, arising from the use of the Programs;

      5.  Require the Sublicensee, at the termination of the Sublicense, to 
          discontinue use and destroy or return to the Alliance Member all 
          copies of the Programs and Documentation;

      6.  Prohibit publication of any results of benchmark tests run on the 
          Programs; 

      7.  Require the Sublicensee to comply fully with all relevant export 
          laws and regulations of the United States to assure that neither 
          the Programs, nor any direct product thereof, are exported, directly 
          or indirectly, in violation of United States law; and 

      8.  Specify Oracle as a third party beneficiary of the Sublicense 
          agreement to the extent permitted by applicable law.

      C. MARKETING/SUBLICENSING PRACTICES

          In marketing and Sublicensing the Programs, the Alliance Member shall:

      1.  Not engage in any deceptive, misleading, illegal, or unethical 
          practices that may be detrimental to Oracle or to the Programs;

      2.  Not make any representations, warranties, or guarantees to 
          Sublicensees concerning the Programs the are inconsistent with or in 
          addition to those made in this Agreement or by Oracle; and 

      3.  Comply with all applicable federal, state, and local laws and 
          regulations in performing its duties with respect to the Programs.

2.4   ACCEPTANCE OF PROGRAMS

          For each Program license for which delivery from Oracle is required 
      under this Agreement, the Alliance Member shall have a 15 day Acceptance 
      Period, beginning on the Commencement Date, in which to evaluate the 
      Program.  During the Acceptance Period, the Alliance Member may cancel 
      the license by giving written notice to Oracle and returning the Program 
      in accordance with Section 6.6 below.  Unless such cancellation notice is 
      given, the license will be deemed to have been accepted by the Alliance 
      Member at the end of the Acceptance Period.

2.5   LIMITATIONS ON USE

          The Alliance Member shall not use or duplicate the Programs (including
      the Documentation) for any purpose other than as specified in this 
      Agreement or make the Programs available to unauthorized third parties.
      The Alliance Member shall not (a) use the Programs for its internal data 
      processing or for processing customer data; (b) rent, electronically
      distribute, or timeshare the Programs or market the Programs by 
      interactive cable or remote processing services or otherwise distribute 
      the Programs other than as specified in this Agreement; or (c) cause 
      or permit the reverse engineering, disassembly, or decompilation of
      the Programs.

2.6   TITLE

                                       2
<PAGE>

          Oracle shall retain all title, copyright, and other proprietary rights
     in the Programs and any modifications or translations thereof. The Alliance
     Member and its Sublicensees do not acquire any rights in the Programs
     other than those specified in this Agreement.

2.7   TRANSFER OF PROGRAMS

          The Alliance Member may transfer a Development License or Marketing 
      Support License within its organization upon notice to Oracle; transfers 
      are subject to the terms and fees specified in Oracle's transfer policy
      in effect at the time of the transfer.

2.8   USE OF PROGRAMS BY AGENTS

          The Alliance Member and each Sublicensee (as the case may be) shall 
      have the right to allow each such party's own third party agents to use 
      each such party's licensed Programs as licensed or Sublicensed under
      this Agreement so long as the applicable party ensures that its agents 
      use the Programs in accordance with the terms of this Agreement or the 
      applicable Sublicense agreement.

2.9   PRE-PRODUCTION PROGRAMS
          As an accommodation to the Alliance Member, Oracle may supply the 
      Alliance Member with pre-production releases of Programs (which may be 
      labeled "Alpha" or "Beta").  These products are not suitable for 
      production use.

3.    TECHNICAL SERVICES

3.1   TECHNICAL SUPPORT SERVICES

          Oracle shall provide Technical Support services ordered by the 
      Alliance Member under Oracle's Technical Support policies in effect on 
      the date Technical Support is ordered, subject to the payment by the 
      Alliance Member of the applicable fees.  Reinstatement of lapsed
      Technical Support services is subject to Oracle's Technical Support 
      reinstatement fees in effect on the date Technical Support is reordered.
      The Alliance Member may obtain Technical Support services for Limited 
      Production Programs and pre-production releases of Programs on a time 
      and materials basis.

3.2   TRAINING SERVICES

          Oracle will provide training services agreed to by the parties under 
      the terms of this Agreement.  For any on-site services requested by the 
      Alliance Member, the Alliance Member shall reimburse Oracle for actual, 
      reasonable travel and out-of-pocket expenses incurred.

4.    FEES AND PAYMENTS

4.1   LICENSE FEES AND SUBLICENSE FEES

          The Alliance Member may order Development Licenses or Marketing 
      Support Licenses at the standard Program license fees set forth in the 
      Price List or at the fees otherwise provided in a Sublicense Addendum.  
      For each Sublicense granted by the Alliance Member, the Alliance Member 
      agrees to pay Oracle a Sublicense fee as set forth in the applicable
      Sublicense Addenda.  The Alliance Member shall not be relieved of its 
      obligation to pay Sublicense fees owed to Oracle by the nonpayment of 
      such fees by the Sublicensee.

          The Alliance Member is free to determine unilaterally its own 
      license fees to its Sublicensees.  If the Alliance Member or a 
      Sublicensee upgrades the Programs to a larger computer, transfers 
      the Programs outside the United States and/or to another operating 
      system, or increases the licensed number of Users, the Alliance Member 
      will pay additional Sublicense fees to Oracle as provided under Oracle's 
      transfer policies and rates in effect at the time the Program is upgraded 
      or transferred.

4.2   TECHNICAL SUPPORT FEES

          Technical Support services ordered by the Alliance Member for 
      Development Licenses and Marketing Support Licenses will be provided under
      Oracle's Technical Support policies and rates in effect on the date 
      Technical Support is ordered.

4.3   GENERAL PAYMENT TERMS

          Except as otherwise provided in a Sublicense Addendum, invoices for 
      payment of license fees shall be payable 30 days from the Commencement 
      Date.  Technical Support fees for Sublicenses shall be payable as 
      specified in the applicable Sublicense Addendum.  Technical Support fees 
      for Development Licenses and Marketing Support Licenses shall be payable 
      annually in advance, net 30 days from the renewal date; such fees will be 
      those in effect at the beginning of the period for which the fees are 
      paid. Fees due by the Alliance Member shall not be subject to set off for
      any claims against Oracle. All payments made shall be in United States 
      currency and shall be made without deductions based on any taxes or 
      withholdings, except where such deduction is based on gross income.  
      Any amounts payable by the Alliance Member hereunder which remain unpaid 
      after the due date shall be subject to a late charge equal to 1.5% per 
      month from the due date until such amount is paid. The Alliance Member 
      agrees to pay applicable media and shipping charges.  The Alliance
      Member shall issue a purchase order, or alternative document acceptable 
      to Oracle, on or before the Effective Date of the applicable Order Form.

4.4   TAXES

          The fees listed in this Agreement do not include taxes; if Oracle is 
      required to pay sales, use, property, value-added, or other federal, 
      state or local taxes based on the licenses granted under this Agreement, 
      or the Sublicenses granted by the Alliance Member, then such taxes shall 
      be billed to and paid by the Alliance Member.  This shall not apply to 
      taxes based on Oracle's income.

5.    RECORDS

5.1   RECORDS INSPECTION

          The Alliance Member shall maintain adequate books and records in 
      connection with activity under this Agreement.  Such records shall 
      include, without limitation, executed Sublicense agreements, the 
      information required in or related to the Sublicense reports required 
      under a Sublicense Addendum, the number of copies of Programs used or 
      Sublicensed by the Alliance Member, the computers on which the Programs 
      are installed, and the number of Users

                                       3

<PAGE>

      using the Programs.  Oracle may audit the relevant books and records of 
      the Alliance Member to ensure compliance with the terms of this Agreement
      upon reasonable notice to the Alliance Member.  Any such audit shall be 
      conducted during regular business hours at the Alliance Member's offices 
      and shall not interfere unreasonably with the Alliance Member's business 
      activities.  If an audit reveals that the Alliance Member has underpaid 
      fees to Oracle, the Alliance Member shall be invoiced for such 
      underpaid fees based on the Price List in effect at the time the audit 
      is completed.  If the underpaid fees exceed five percent (5%) of the 
      applicable license fees or Sublicense fees paid, then the Alliance Member
      shall pay Oracle's reasonable costs of conducting the audit. 
      Audits shall be made no more than once annually.

5.2   NOTICE OF CLAIM

          The Alliance Member will notify the Oracle legal department promptly 
       in writing of: (a) any claim or proceeding involving the Programs that 
       comes to its attention; and (b) any material change in the management or 
       control of the Alliance Member.

6.    TERM AND TERMINATION

6.1   TERM

          This Agreement shall become effective on the Effective Date and 
      shall be valid until the expiration or termination of all Sublicense 
      Addenda hereunder, unless terminated earlier as set forth herein. If not
      otherwise specified on the Order Form, each Program license granted 
      under this Agreement shall remain in effect perpetually under the terms 
      of this Agreement unless the license or this Agreement is terminated as
      provided in this Article 6 below. The term of each Sublicense Addendum 
      hereunder shall be as set forth in each such Addendum.

6.2   TERMINATION BY THE ALLIANCE MEMBER

          The Alliance Member may terminate any Program license, any Sublicense
      Addenda, or this Agreement at any time; however, termination shall not 
      relieve the Alliance Member's obligations specified in Sections 6.5 and 
      6.6.

6.3   TERMINATION BY ORACLE

          Oracle may terminate any Program license, any Sublicense Addenda, 
      or this Agreement upon written notice if the Alliance Member breaches 
      this Agreement and fails to correct the breach within 30 days following 
      written notice specifying the breach.

6.4   FORCE MAJEURE

          Neither party shall be liable to the other for failure or delay in 
      the performance of a required obligation if such failure or delay is 
      caused by strike, riot, fire, flood, natural disaster, or other similar 
      cause beyond such party's control, provided that such party gives
      prompt written notice of such condition and resumes its performance as 
      soon as possible, and provided further that the other party may terminate 
      this Agreement if such condition continues for a period of one hundred 
      eighty (180) days.

6.5   EFFECT OF TERMINATION

          Upon expiration or termination of a Sublicense Addendum or this 
      Agreement, all the Alliance Member's rights to market and Sublicense the 
      Programs as set forth in such Sublicense Addendum or this Agreement shall 
      cease.

          The termination of this Agreement, a Sublicense Addendum, or any 
      license shall not limit either party from pursuing any other remedies 
      available to it, including injunctive relief, nor shall such termination
      relieve the Alliance Member's obligation to pay all fees that have
      accrued or that the Alliance Member has agreed to pay under a 
      Sublicense Addendum or any Order Form, other similar ordering document 
      under this Agreement, or that appear in a Sublicense report.  The 
      parties' rights and obligations under Sections 2.5, 2.6, 2.7 and 
      Articles 4, 5, 6, 7, and 8 shall survive termination of this Agreement.

6.6   HANDLING OF PROGRAMS UPON TERMINATION

          If a license granted under this Agreement expires or otherwise
      terminates, the Alliance Member shall: (a) cease using the applicable 
      Programs; and (b) certify to Oracle within one month after expiration or 
      termination that the Alliance Member has destroyed or has returned
      to Oracle the Programs and all copies.  This requirement applies to 
      copies in all forms, partial and complete, in all types of media and 
      computer memory, and whether or not modified or merged into other 
      materials.  Before returning Programs to Oracle, the Alliance Member
      shall acquire a Return Material Authorization ("RMA") number from Oracle.

7.    INDEMNITY, WARRANTIES, REMEDIES

7.1   INFRINGEMENT INDEMNITY

          Oracle will defend and indemnify the Alliance Member against a claim
      that Programs infringe a copyright or patent, provided that: (a) the 
      Alliance Member notifies Oracle in writing within 30 days of the claim; 
      (b) Oracle has sole control of the defense and all related settlement 
      negotiations; and (c) the Alliance Member provides Oracle with the
      assistance, information and authority necessary to perform Oracle's 
      obligations under this Section.  Reasonable out-of-pocket expenses 
      incurred by the Alliance Member in providing such assistance will be 
      reimbursed by Oracle.

          Oracle shall have no liability for any claim of infringement based on 
      use of a superseded or altered release of Programs if the infringement 
      would have been avoided by the use of a current unaltered release of the 
      Programs which Oracle provides to the Alliance Member.

          In the event the Programs are held or are believed by Oracle to 
      infringe, Oracle shall have the option, at its expense, to (a) modify 
      the Programs to be noninfringing; (b) obtain for the Alliance Member a 
      license to continue using the Programs; or (c) terminate the license
      for the infringing Programs and refund the license fees paid for those 
      Programs, prorated over a five year term from the Commencement Date.  
      This Section 7.1 states Oracle's entire liability and the Alliance 
      Member's exclusive remedy for infringement.

7.2   WARRANTIES AND DISCLAIMERS

      A. PROGRAM WARRANTY

                                       4
<PAGE>

          Oracle warrants for a period of one year from the Commencement Date 
      that each unmodified Program for which the Alliance Member has a 
      Supported Program License will perform the functions described in the 
      Documentation provided by Oracle when operated on the Designated
      System.

      B. MEDIA WARRANTY

          Oracle warrants the tapes, diskettes or other media to be free of 
      defects in materials and workmanship under normal use for 90 days
      from the Commencement Date.

      C. SERVICES WARRANTY

          Oracle warrants that its Technical Support and training services will
      be performed consistent with generally accepted industry standards.
      This warranty shall be valid for 90 days from performance of service.

      D. DISCLAIMERS

          THE WARRANTIES ABOVE ARE EXCLUSIVE AND IN LIEU OF ALL OTHER 
      WARRANTIES, WHETHER EXPRESS OR IMPLIED, INCLUDING THE IMPLIED WARRANTIES 
      OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

          ORACLE DOES NOT WARRANT THAT THE PROGRAMS WILL RUN PROPERTY ON ALL 
      HARDWARE, THAT THE PROGRAMS WILL MEET REQUIREMENTS OF THE ALLIANCE
      MEMBER OR THE SUBLICENSEES OR OPERATE IN THE COMBINATIONS WHICH MAY 
      BE SELECTED FOR USE BY THE ALLIANCE MEMBER OR THE SUBLICENSEES, THAT THE
      OPERATION OF THE PROGRAMS WILL BE UNINTERRUPTED OR ERROR FREE, OR THAT 
      ALL PROGRAM ERRORS WILL BE CORRECTED. LIMITED PRODUCTION PROGRAMS, 
      PRE-PRODUCTION RELEASES OF PROGRAMS, AND COMPUTER-BASED TRAINING, 
      PRODUCTS ARE DISTRIBUTED "AS IS."

          The Alliance Member shall not make any warranty on Oracle's behalf.

7.3   EXCLUSIVE REMEDIES

          For any breach of the warranties contained in Section 7.2 above, the 
      Alliance Member's exclusive remedy, and Oracle's entire liability, shall 
      be:

      A. FOR PROGRAMS

          The correction of Program errors that cause breach of the warranty, 
      or if Oracle is unable to make the Program operate as warranted,
      the Alliance Member shall be entitled to recover the fees paid to Oracle 
      for the Program license.

      B. FOR MEDIA

          The replacement of defective media returned within 90 days of the 
      Commencement Date.

      C. FOR SERVICES

          The reperformance of the services, or if Oracle is unable to perform 
      the services as warranted, the Alliance Member shall be entitled to 
      recover the fees paid to Oracle for the unsatisfactory services.

7.4   INDEMNIFICATION OF ORACLE

          The Alliance Member agrees to enforce the terms of its Sublicense 
      agreements required by this Agreement and to notify Oracle of any known 
      breach of such terms.  The Alliance Member will defend and indemnify 
      Oracle against:

      A. All claims and damages to Oracle arising from any use by the Alliance 
      Member or its Sublicensees of any product not provided by Oracle but used
      in combination with the Programs if such claim would have been avoided 
      by the exclusive use of the Programs;

      B. All claims and damages to Oracle caused by the Alliance Member's 
      failure to include the required contractual terms set forth in 
      Section 2.3.B hereof in each Sublicense agreement; and

      C. All claims and damages to Oracle caused by Sublicensees' breach of 
      any of the applicable provisions required by Section 2.3 hereof.

7.5   EQUITABLE RELIEF

          The Alliance Member acknowledges that any breach of its obligations 
      with respect to proprietary rights of Oracle will cause Oracle 
      irreparable injury for which there are inadequate remedies at law and 
      that Oracle shall be entitled to equitable relief in addition to all 
      other remedies available to it.

8.    GENERAL TERMS AND CONDITIONS

8.1   NONDISCLOSURE

          Neither party shall, without first obtaining the written consent of 
      the other party disclose the terms and conditions of this Agreement, 
      except as may be required to implement and enforce the terms of this 
      Agreement, or as may be required by legal procedures or by law. 
      No other information exchanged between the parties shall be deemed 
      confidential unless the parties otherwise agree in writing. The
      Alliance Member shall not disclose the results of benchmark tests or 
      other evaluation of the Programs to any third party without Oracle's prior
      written approval.

8.2   COPYRIGHTS

          The Programs are copyrighted by Oracle.  The Alliance Member shall 
      retain all Oracle copyright notices on the Programs used by the Alliance
      Member under its Development Licenses or Marketing Support Licenses.  
      The Alliance Member shall include the following on all copies of the 
      Programs in software Value-Added Packages incorporating the Programs 
      distributed by the Alliance Member:

      A. A reproduction of Oracle's copyright notice; or

      B. A copyright notice indicating that the copyright is
      vested in the Alliance Member containing the following

      1. A "c" in a circle and the word "copyright";

      2. The Alliance Member's name;

      3. The date of copyright; and

      4. The words "All Rights Reserved."

          Such notices shall be placed on the Documentation, the sign-on 
      screen for any software Value-Added Package incorporating the Programs, 
      and the diskette or tape labels. Notwithstanding any copyright notice by 
      the Alliance Member to the contrary, the copyright to the Program 
      included in any such application package shall remain in Oracle.  
      Other than as specified above, on any reproduction or translation of 
      any Programs, Documentation, or

                                       5
<PAGE>

      promotional material, the Alliance Member agrees to reproduce Oracle's 
      copyright notices intact.

8.3   TRADEMARKS

      "0racle" and any other trademarks and service marks adopted by Oracle to 
      identify the Programs and other Oracle products and services belong to 
      Oracle; the Alliance Member will have no rights in such marks except as 
      expressly set forth herein and as specified in writing from time to 
      time. The Alliance Member's use of Oracle's trademarks shall be under 
      Oracle's trademark policies and procedures in effect from time-to-time. 
      The Alliance Member agrees not to use the trademark "ORACLE," or any 
      mark beginning with the letters "Ora" or any other mark likely to cause
      confusion with the trademark "ORACLE" as any portion of the Alliance 
      Member's tradename, trademark for the Alliance Member's Value-Added
      Package, or trademark for any other products of the Alliance Member. 
      The Alliance Member shall have the right to use the trademark "ORACLE" 
      and other Oracle trademarks solely to refer to Oracle's Programs, 
      products and services.

          The Alliance Member agrees with respect to each registered trademark 
      of Oracle, to include in each advertisement, brochure, or other such use 
      of the trademark, the trademark symbol "circle R" and the following
      statement:

          _____________ is a registered trademark of Oracle Corporation,  
          Redwood City, California

          Unless otherwise notified in writing by Oracle, the Alliance Member 
      agrees, with respect to every other trademark of Oracle, to include in 
      each advertisement, brochure, or other such use of the trademark, 
      the symbol "TM" and the following statement:

          _____________ is a trademark of Oracle Corporation, Redwood City, 
          California

          The Alliance Member shall not market the Oracle Programs in any way 
      which implies that the Oracle Programs are the proprietary product of the 
      Alliance Member or of any party other than Oracle. Oracle shall not have 
      any liability to the Alliance Member for any claims made by third parties 
      relating to the Alliance Member's use of Oracle's trademarks.

8.4   RELATIONSHIPS BETWEEN PARTIES

          In all matters relating to this Agreement, the Alliance Member will 
      act as an independent contractor.  The relationship between Oracle and 
      the Alliance Member is that of licensor/licensee.  Neither party will 
      represent that it has any authority to assume or create any obligation, 
      express or implied, on behalf of the other party, nor to represent the 
      other party as agent, employee, franchisee, or in any other capacity.  
      Nothing in this Agreement shall be construed to limit either party's 
      right to independently develop or distribute software which is 
      functionally similar to the other party's product, so long as proprietary
      information of the other party is not included in such software.

8.5   ASSIGNMENT

          The Alliance Member may not assign or otherwise transfer any rights 
      under this Agreement without Oracle's prior written consent.

8.6  NOTICE

          All notices, including notices of address change, required to be 
     sent hereunder, shall be in writing and shall be deemed to have been given 
     when deposited in first class mail to the first address listed in the 
     relevant Order Form (if to the Alliance Member) or to the Oracle
     address on the Order Form (if to Oracle).

          To expedite order processing, the Alliance Member agrees that Oracle 
      may treat documents faxed by the Alliance Member to Oracle as original 
      documents; nevertheless, either party may require the other to exchange 
      original signed documents.

8.7  GOVERNING LAW/JURISDICTION

          This Agreement, and all matters arising out of or relating to this 
     Agreement, shall be governed by the substantive and procedural laws of the
     State of California and shall be deemed to be executed in Redwood City, 
     California.  The parties agree that any legal action or proceeding 
     relating to this Agreement shall be instituted in any state or 
     federal court in San Francisco or San Mateo County, California.  
     Oracle and the Alliance Member agree to submit to the jurisdiction of, 
     and agree that venue is proper in, these courts in any such legal action
     or proceeding.

8.8  SEVERABILITY

          In the event any provision of this Agreement is held to be invalid or 
     unenforceable, the remaining provisions of this Agreement will remain in 
     full force and effect.

8.9  EXPORT

          The Alliance Member agrees to comply fully with all relevant export 
     laws and regulations of the United States ("Export Law") to assure that 
     neither the Programs, nor any direct product thereof, are (a) exported, 
     directly or indirectly, in violation of Export Laws; or (b) are intended to
     be used for any purposes prohibited by the Export Laws, including, without 
     limitation, nuclear, chemical, or biological weapons proliferation.

8.10 LIMITATION OF LIABILITY

          IN NO EVENT SHALL EITHER PARTY BE LIABLE FOR ANY INDIRECT, INCIDENTAL,
     SPECIAL OR CONSEQUENTIAL DAMAGES, OR DAMAGES FOR LOSS OF PROFITS, REVENUE,
     DATA OR USE, INCURRED BY EITHER PARTY OR ANY THIRD PARTY, WHETHER IN AN 
     ACTION IN CONTRACT OR TORT, EVEN IF THE OTHER PARTY OR ANY OTHER PERSON 
     HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. ORACLE'S LIABILITY 
     FOR DAMAGES HEREUNDER SHALL IN NO EVENT EXCEED THE AMOUNT OF FARE PAID BY 
     THE ALLIANCE MEMBER UNDER THIS AGREEMENT, AND IF SUCH DAMAGES RESULT FROM 
     THE ALLIANCE MEMBER'S USE OF THE PROGRAM OR SERVICES, SUCH LIABILITY SHALL
     BE LIMITED TO FEES PAID FOR THE RELEVANT PROGRAM OR SERVICES GIVING RISE 
     TO THE LIABILITY, PRORATED OVER A FIVE-YEAR TERM FROM THE COMMENCEMENT 
     DATE OF THE APPLICABLE LICENSE OR THE DATE OF PERFORMANCE OF THE APPLICABLE
     SERVICES.


                                        6

<PAGE>


          The provisions of this Agreement allocate the risks between Oracle and
     the Alliance Member.  Oracle's pricing reflects this allocation of risk and
     the limitation of liability specified herein.

8.11 FEDERAL GOVERNMENT SUBLICENSES

          If the Alliance Member grants a Sublicense to the United States 
     government, the Programs shall be provided with "Restricted Rights" and the
     Alliance Member will place a legend, in addition to applicable copyright 
     notices, on the documentation, and on the tape or diskette label, 
     substantially similar to the following:

                       RESTRICTED RIGHTS LEGEND
     "Use, duplication or disclosure by the Government is subject to 
     restrictions as set forth in subparagraph (c)(1)(ii) of the Department of 
     Defense Regulations Supplement ("DFARS") 252.227-7013, Rights in Technical 
     Data and Computer Software (October 1988) and Federal Acquisition 
     Regulation ("FAR") 52.227-14, Rights in Data-General, including Alternate 
     III (June 1987), as applicable.  Oracle Corporation, 500 Oracle Parkway, 
     Redwood City, CA 94065."

8.12 WAIVER

          The waiver by either party of any default or breach of this Agreement
     shall not constitute a waiver of any other or subsequent default or breach.
     Except for actions for non-payment or breach of Oracle's proprietary rights
     in the Programs, no action, regardless of form, arising out of this 
     Agreement may be brought by either party more than one year after the cause
     of action has accrued.

8.13 ENTIRE AGREEMENT

          This Agreement constitutes the complete agreement between the parties
     and supersedes all prior or contemporaneous agreements or representations, 
     written or oral, concerning the subject matter of this Agreement.  This 
     Agreement may not be modified or amended except in a writing signed by a 
     duly authorized representative of each party; no other act, document, usage
     or custom shall be deemed to amend or modify this Agreement.  This 
     Agreement may be executed in any number of counterparts, each of which 
     shall be an original and all of which shall constitute together but one and
     the same document.

          It is expressly agreed that the terms of this Agreement and any Order
     Form shall supersede the terms in any Alliance Member purchase order or 
     other ordering document.  This Agreement shall also supersede the terms of
     any shrinkwrap or break-the-seal license agreement included in any package 
     for Oracle-furnished software, except terms contained in such license 
     agreement that grant specific use rights for the Programs.

The Effective Date of this Agreement shall be________________________________.

EXECUTED BY CABLEDATA, INC.                     EXECUTED BY ORACLE CORPORATION:

Authorized Signature: /s/ Michael McGrail      Authorized Signature:___________

Name: Michael McGrail                          Name:___________________________

Title: President                               Title:__________________________


Oracle Corporation
500 Oracle Parkway
Redwood Shores, CA 94065
(415) 506-7000
Oracle is a registered trademark of Oracle Corporation.
1-95


                                       7

<PAGE>


                                 AMENDMENT ONE
                                     TO THE
                      BUSINESS ALLIANCE PROGRAM AGREEMENT
                                     BETWEEN
                                  CABLEDATA, INC.
                                       AND
                                ORACLE CORPORATION

This Amendment One shall serve to amend the Business Alliance Program Agreement,
and any amendments thereto, between CableData, Inc. (the "Alliance Member") and
Oracle Corporation ("Oracle") dated ___________________ (the "Agreement").


The Agreement is amended as follows:


1.    The following shall be inserted at the end of the introductory paragraph 
      of the Agreement:

      "The term "Alliance Member" for purposes of this Agreement shall include
      the Alliance Member and the Alliance Member's wholly or majority owned 
      subsidiaries which are specified on the attached Subsidiary Exhibit as 
      of the Effective Date.  Each Subsidiary must agree in writing to be 
      bound by the terms of the Agreement."

2.    In Section 6.5, delete the first paragraph and replace it with the 
      following:

      "Each Sublicensee of the Alliance Member effective at the time of 
      expiration or termination of this Agreement shall upon execution of a 
      Sofware License and Services Agreement (the "SLSA"), have the ability 
      to place orders for additional Programs directly with Oracle.  All orders
      placed by the Sublicensee shall be placed pursuant to the Terms and 
      Conditions of the SLSA between Oracle and such Sublicense."

Other than the modification set forth above, the terms and conditions of the 
Agreement remain unchanged, and in full force and effect.

The Effective Date of this Amendment One is_______________________, 1996.

CABLEDATA, INC.                           ORACLE CORPORATION

By: /s/ Michael McGrail                   By:
   ---------------------------------         -----------------------------

Name: Michael McGrail                     Name:
     -------------------------------           ---------------------------

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


<PAGE>
                             SUBSIDIARY EXHIBIT



        CUO, Inc.
        CableData International Ltd.
        CableLease, Inc.


<PAGE>


ORACLE-Registered Trademark-


                FULL USE AND DEPLOYMENT SUBLICENSE ADDENDUM

This document (the "Addendum") is between Oracle Corporation ("Oracle") and
CableData, Inc. (the "Alliance Member") and shall be governed by the terms of
the Business Alliance Program Agreement between the Alliance Member and Oracle
effective __________, 19__ (the "Agreement") and the terms set forth below.

1.    PROGRAM DISTRIBUTION

1.1   SUBLICENSE OF PROGRAMS AND TERMS

           The Alliance Member shall have the right to market and grant
      Sublicenses of Full Use Programs or Deployment Programs which are
      available in production release and listed on Oracle's Price List in
      effect at the time the Programs are ordered from Oracle to Sublicense to a
      Sublicensee; provided, however, the Alliance Member shall have no right to
      Sublicense any Programs designated as Oracle Applications Programs, Oracle
      Express Programs, Limited Production Programs, or other Programs specified
      by Oracle from time-to-time without the prior written consent of Oracle.
      The Alliance Member shall have the right to market and grant Sublicenses
      of Full Use or Deployment Programs for use on Designated Systems in
      conjunction with the Integrated System to Sublicensees.  Each copy of the
      Full Use or Deployment Programs distributed shall be for the Sublicensee's
      own internal use in the Territory only on a single Designated System
      limited to a maximum number of Users.

           To acquire Programs for Sublicensing to Sublicensees, the Alliance
      Member shall order such Programs from Oracle.  Each order shall specify
      the applicable Programs, maximum number of Users, computer/operating
      system configuration, fees, shipping location, and any other information
      required by Oracle for processing the order.  Orders for Trial Sublicenses
      shall be clearly marked on the face of the Order Form.

1.2   DISTRIBUTION UNDER ORACLE AGREEMENT

           In addition to the Sublicense rights specified in Section 2.3.A of
      the Agreement and notwithstanding the terms of such Section and
      Section 3.2.B of the Agreement, the Alliance Member shall have the right
      to market and grant Sublicenses of Full Use Programs and Deployment
      Programs in conjunction with the Integrated System to Sublicensees under a
      standard Oracle Software License and Services Agreement in lieu of
      Sublicensing the Programs under a written Sublicense agreement.

           The Alliance Member may submit orders for Sublicenses to Oracle for
      its acceptance.

           With each such order, the Alliance Member shall submit a standard
      Oracle Software License and Services Agreement executed by the applicable
      Sublicensee, or shall reference on such order that the Programs will be
      licensed to the Sublicensee subject to an existing license agreement
      effective between the Sublicensee and Oracle (the "Oracle Agreement"). In
      addition, as part of the Oracle Agreement, the Alliance Member shall
      obtain the Sublicensee's written agreement that the ordered Programs and
      services are subject to the terms and conditions of the Oracle Agreement.

           If the Sublicensee is a federal agency, the Alliance Member shall
      submit with each such order a written document executed by an authorized
      Sublicensee contracting officer which contains the following provision:
      "This is an open market order placed pursuant to terms identical to the
      terms and conditions of Oracle's General Services Administration (GSA)
      Schedule A Contract for Oracle Programs current as of the order date, with
      the exception of the maximum order lineations, discounts, maintenance,
      training units and other discounts specific to the applicable Oracle GSA
      Schedule.  No other pre-printed or reference terms and conditions shall
      apply." This written document shall be deemed the applicable Oracle
      Agreement.

           For orders which include only shrinkwrapped Oracle Programs, the
      Oracle Agreement may consist of a written obligation by the Sublicensee to
      use the Programs under the terms of the shrinkwrap license agreement.

           The Alliance Member shall indemnify Oracle for any claims, damages,
      or losses arising from failure to obtain any Oracle Agreement.

           If the order specifies that the Programs are to be delivered to the
      Alliance Member, the Alliance Member shall have the right to re-deliver
      the Programs with their original packaging to the applicable Sublicensee.

1.3   FULL USE AND DEPLOYMENT PROGRAMS

           For the purposes of this Addendum, "Full Use Programs" shall mean
      unaltered versions of the Programs with all functions intact. "Deployment
      Programs" shall mean Programs which are limited to use solely for the
      purpose of running applications, and may not be used to create or alter
      tables or reports except as necessary for operating the applications.

1.4   VALUE-ADDED PACKAGE

           For the purposes of this Addendum, "Integrated System" shall mean the
      hardware and software products having Value-Added which are developed,
      sold, and/or licensed with the Programs to a Sublicensee by the Alliance
      Member to satisfy such Sublicensee's internal business requirements and
      objectives.  For purposes of the Agreement, the Integrated System will be
      regarded as the Alliance


<PAGE>


      Member's Value-Added Package which is described in the attached Value-
      Added Attachment. The Integrated System shall be regarded as "Value-Added"
      if the following materials are provided as part of the Integrated System
      by the Alliance Member: (a) non-Oracle developed software; (b) customized
      programming or customized consulting; and (c) other computer products or
      components.

1.5   TRIAL SUBLICENSES

           The Alliance Member shall be entitled to grant, at no charge, up to
      ten (10) temporary Trial Sublicenses of the Programs at any one time.
      Such Sublicenses shall be for evaluation purposes only and shall be for a
      period not to exceed thirty (30) days.  The Alliance Member shall pay
      Oracle Sublicense fees for any Trial Sublicenses in excess of thirty (30)
      days.  Each such Trial Sublicense shall be Sublicensed under a Sublicense
      agreement which provides for such trial use or under an Oracle Trial
      License Agreement, as the applicable Oracle Agreement.

1.6    NO DISTRIBUTORS

           The Alliance Member's right to market and grant Sublicenses of Full
      Use Programs or Deployment Programs hereunder shall be limited to the
      Alliance Member only.  The Alliance Member shall not appoint any third
      party to distribute the Programs without Oracle's prior written
      consent.

1.7   DOCUMENTATION

           Oracle shall deliver one copy of the applicable Documentation with
      each order of Programs for Sublicensing to Sublicensees.

2.    SUBLICENSE FEES

2.1   SUBLICENSE FEES AND RATE

           For each copy of the Programs Sublicensed by the Alliance Member, the
      Alliance Member agrees to pay Oracle a Sublicense fee equal to [*]
      of the applicable license fee for each such Program, as
      specified in the applicable Price List and Alliance Member Price List
      supplement to such Price List in effect at the time the applicable
      Programs are Sublicensed to a Sublicensee.  The Sublicense fee shall 
      be calculated effective on the date of the Sublicense, which shall be
      the date the Programs are shipped by Oracle or the effective date of
      the order to Oracle for such Programs, if no shipment is required.

           Fees for Sublicense of Programs shall be due and payable on the date
      that Oracle ships the applicable Programs and shall be deemed overdue if
      not paid within thirty-one (31) days of the due date.  The Alliance Member
      shall not be relieved of its obligation to pay Sublicense fees owed to
      Oracle by the nonpayment of such fees by the Sublicensee.

2.2   PRICE LIST

           As set forth in the Agreement, the applicable Price List for
      determining Sublicense fees shall be the standard Price List in effect at
      the time the Program is Sublicensed to a Sublicensee.  However, pricing
      for any federal agency, pursuant to terms and conditions identical to the
      terms and conditions of Oracle's GSA Schedule A Contract for Oracle
      Programs current as of the order date, shall be based on Oracle's
      published GSA Price List.

           Notwithstanding any other provision of this Agreement, if the
      Alliance Member issues a written Sublicense quote and such quote is
      accepted by the applicable Sublicensee, for a period of ninety (90) days
      after the date of submission of the quote to the Sublicensee, the fee
      applicable to the Programs identified in the quote shall be based on the
      Price List in effect on such date.

2.3   USERS

           The fees for Sublicense of a Program shall be based and priced on the
      applicable User Level for the maximum number of Users for such Program, as
      specified in the Price List.  The Alliance Member shall have the right to
      Sublicense on any User basis specified in the Price List in effect at the
      time the applicable Program is Sublicensed to a Sublicensee.

3.    TERM

           This Addendum shall become effective on the Effective Date of this
      Addendum and shall be valid for one (1) year (the "Term"), unless
      terminated as provided in the Agreement.  Any renewal of this Addendum
      shall be subject to renegotiation of terms and fees.

4.    TERRITORY

           The Alliance Member shall have the right to market and grant
      Sublicenses of Full Use Programs or Deployment Programs in the United
      States only (the "Territory").

5.    TECHNICAL SUPPORT

5.1   TECHNICAL SUPPORT FOR SUBLICENSEES

           A Sublicensee may acquire Technical Support services for Full Use
      Programs or Deployment Programs Sublicensed under this Addendum from
      Oracle at Oracle's standard rates and fee in effect at the time such
      Technical Support services are ordered under an Oracle Technical Support
      Services Agreement or Oracle Agreement, as applicable.

5.2   TECHNICAL SUPPORT FEES

          Oracle agrees that the Alliance Member shall have the right to offer
      Oracle annual Technical Support services to Sublicensees in the United
      States that are currently acquiring Full Use Programs or Deployment
      Programs.  The Alliance Member shall only offer Oracle Technical Support
      services with respect to the initial first year of Technical Support for a
      Sublicensed Program.  The Alliance Member shall only offer Oracle annual
      Technical Support services to a Sublicensee provided that:

      A. Oracle receives from the Sublicensee an executed, standard Oracle
      Technical Support Services Agreement, Oracle Agreement, or other terms to
      govern the Technical Support services as agreed to in writing by Oracle
      and the Sublicensee;

      B. The Full-Use or Deployment Programs are currently Sublicensed by the
      Alliance Member;

      C. The Alliance Member pays Oracle its required Sublicense fee for the
      applicable Sublicensed Programs as provided under the Agreement, and the
      Alliance Member pays Oracle the applicable

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                     2

<PAGE>


      Technical Support services fees as set forth herein in advance;

      D. The Alliance Member's Sublicense of the Full Use Programs or
      Deployment Programs coincides with the agreement to provide Technical
      Support Services for such Programs; and

      E. The net Technical Support services fees represent new Technical Support
      revenue to Oracle.

           The Technical Support services fees payable by Alliance Member as
      provided above shall be Oracle's standard rates for such services as
      provided under the Price List in effect at the time the Technical Support
      services are ordered, discounted by ten percent (10%).

6.    SUBLICENSE REPORTS

           With each order for Programs for Sublicense to a Sublicensee, the
      Alliance Member shall send Oracle a report detailing for each Sublicensed
      Full Use Program or Deployment Program: Sublicensee name, address,
      make/model and operating system of the Designated System. Full Use or
      Deployment Programs, maximum number of licensed Users, whether the
      Sublicense is a Trial Sublicense, total Program fees and Technical Support
      Fees due to Oracle, and specific descriptions of the Integrated System and
      Value-Added.

7.    ADDITIONAL LICENSES

           During the Term, the Alliance Member may order production release
      versions of Oracle off-the-shelf Programs available as production release
      as of the Effective Date of this Addendum and listed on the Price List in
      effect as of such date.  The license fee for Development Licenses shall be
      equal to Oracle's standard list license fees in effect when an order is
      placed.  The Alliance Member shall have the right to order Programs for
      use as Marketing Support Licenses at no further charge to the Alliance
      Member.  The Alliance Member may obtain Technical Support services from
      Oracle for such Programs under Oracle's applicable Technical Support fees
      and policies in effect when such services are ordered.



The Effective Date of this Addendum shall be________________________.

EXECUTED BY CABLEDATA, INC.:                 EXECUTED BY ORACLE CORPORATION:

Authorized Signature: /s/ Michael McGrail    Authorized Signature:
                      -------------------                         -------------

Name: Michael McGrail                        Name:
     ------------------------------------         -----------------------------

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


ORACLE
Oracle Corporation
500 Oracle Parkway
Redwood Shores, CA 94065
(415) 506-7000
Oracle is a registered trademark of Oracle Corporation.
8-95

                                        3
<PAGE>

                             VALUE-ADDED ATTACHMENT

DESCRIPTION OF INTEGRATED SYSTEM:

               CableData's Intelecable Solution

      HARDWARE COMPONENTS:

               IBM RS6000, SP platforms
               Tandem Integrity NR platform
               Tandem OSS/Non Stop platform


      SOFTWARE PRODUCTS OTHER THAN PROGRAMS:

               BEA Tuxedo TP monitor middleware products
               other 3rd party software programs that may be necessary


      SERVICES TO BE PROVIDED BY THE ALLIANCE MEMBER:

               Professional services; installation, implementation, support
               custom software integration projects

<PAGE>


                                  AMENDMENT ONE
                                     TO THE
                   FULL USE AND DEPLOYMENT SUBLICENSE ADDENDUM
                                     BETWEEN
                                 CABLEDATA, INC.
                                       AND
                               ORACLE CORPORATION

This Amendment One shall serve to amend the Full Use and Deployment 
Sublicense Addendum dated ______________ (the "Addendum") between CableData, 
Inc. (the "Alliance Member") and Oracle Corporation ("Oracle").

The Addendum is amended as follows:

1.    In Section 1.5, delete the words "ten (10)" and replace them with the
      words "twenty (20)."

      Also, delete the words "thirty (30)" in each instance in which they appear
      in such Section and replace them with the words "ninety (90)."

2.    After Section 1.2, add the following new Section:

      "1.2.A  Pass-Through Order

      As set forth in Section 1.2 above, the Alliance Member shall have the
      right to distribute Full Use Programs and Deployment Programs under a
      standard Oracle Software License and Services Agreement.  In addition to
      the procedure set forth in Section 1.2 above, if elected by the parties,
      Oracle shall issue an Oracle Order Form documenting (i) that the end user
      shall receive a license for the applicable Programs under the terms and
      conditions of the applicable Software License and Services Agreement
      between Oracle and the end user, and (ii) that the Alliance Member shall
      be responsible for paying Oracle for the Oracle products and services
      provided by Oracle to the end user under the Order Form ("Pass-Through
      Order").  All three parties will be required to execute the Pass-Through
      Order in order for such order to be effective.  Also, the Alliance Member
      shall provide its purchase order with such Pass-Through Order. The Pass-
      Through Order shall constitute the end user's written agreement that the
      ordered products and services are ordered subject to the terms and
      conditions of the Oracle Agreement.  The fees due to Oracle by the
      Alliance Member under such Pass-Through Order shall be equal to the total
      amount as set forth on the Pass-Through Order less ten percent (10%) of
      the net license fees on the Pass-Through Order."

3.    After Section 1.2A, add the following new Section:

      "1.2B. COMMISSIONS

      During the Term of this Addendum, Oracle agrees to pay the Alliance Member
      a fee ("Commission") equal to [*] of the net license fees
      Oracle receives from Programs licensed by Oracle to end-users in the
      Territory, as a direct result of the Alliance Member's marketing efforts.
      Unless otherwise mutually agreed to in writing by the Alliance Member and
      Oracle, Commissions shall only be paid provided that:

      A. Oracle obtains from the end-user an Oracle Software License and
      Services Agreement, or other terms to govern the applicable software
      license as agreed to in writing by Oracle and the end-user;

      B. The Alliance Member provides to Oracle a completed Commission Request
      Form which is accepted in writing by Oracle at least five (5) days prior
      to the date of license of the applicable Programs, and the end user pays
      Oracle directly for all required license fees;

      C. The Alliance Member's marketing efforts precede the license grant from
      Oracle; and

      D. The net license fees represent new revenue to Oracle.

      The Alliance Member's Commission shall be calculated on fees for perpetual
      software licenses only.  The Alliance Member shall not earn a Commission
      based on Technical Support fees or fees for other services or products
      provided to the end-user by Oracle.  Commissions shall not be paid with
      respect to any distribution transactions under Sections 1.2 and 1.2.A of
      this Addendum, unless otherwise agreed to in writing by Oracle.  Oracle
      reserves the right to withhold payment of the Commissions due to
      noncollectability of revenues from the end-user or if the Alliance Member
      employs marketing practices not approved by Oracle.  Commissions shall be
      paid for Program licenses installed in the Territory.  If one or

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

<PAGE>


      more other Alliance Members seek to obtain Commission for a Program
      license for which the Alliance Member is seeking Commission, Oracle shall
      reasonably reduce or adjust the Commission rate specified above to
      apportion payment of commissions between all Alliance Members which in
      Oracle's reasonable judgement are entitled to payment of commissions.  A
      copy of the Commission Request Form is attached hereto as Exhibit A."

4.    In Section 2.1, add the following new paragraph at the end of such
      Section:

      "Notwithstanding any other provision of this Section, if Oracle confirms
      in writing that the Sublicensee is a party to an existing and effective
      agreement with Oracle which allows such Sublicensee to acquire the
      Programs to be Sublicensed to such Sublicensee at a greater discount than
      the discount provided in this Section, the Sublicense Fee for the
      Sublicense of such Programs to such Sublicensee shall be equal to the
      Oracle standard Program license fee for such Program as specified in the
      applicable Price List specified in the applicable agreement with Oracle,
      discounted by the applicable discount for such Program licenses as
      specified in such agreement. In order to allow Oracle to verify that such
      discount is applicable, Oracle may require the Alliance Member to attach a
      copy of the applicable agreement to the Alliance Member's Order Form for
      such Programs."

5.    In Section 2.2, add the following new sentence to the end of such Section:

      "All Sublicense fees for Sublicenses installed outside the United States
      shall be based on the Oracle Global Price List in effect at the time the
      Programs are Sublicensed."

6.    In Section 4, delete the body of such Section in its entirety and replace
      it with the following:

      "4. TERRITORY
      The Alliance Member shall have the right to market and grant Sublicenses
      of Programs in the Application Package in all countries worldwide, (the
      "Territory"), subject to the terms of this Section.  Oracle may from time
      to time deny the Alliance Member the right to Sublicense in certain
      countries in the Territory in order to protect Oracle's interests if, in
      the reasonable opinion of Oracle's counsel, such countries (i) do not
      provide adequate protection for Oracle's proprietary rights through
      copyright, trade secret, patent, or other laws; or (ii) have laws or
      regulations or the government has committed acts which in the opinion of
      Oracle's counsel, are injurious to Oracle's interests in the Programs.

      The Alliance Member acknowledges that the Programs are subject to export
      controls imposed on Oracle and the Alliance Member by the U.S. Export
      Administration Act, United States Departments of Commerce, Treasury, and
      State regulations and directives, and other United States law ("Export
      laws").  The Alliance Member certifies that neither the Programs nor any
      direct product thereof are (i) exported, directly or indirectly, in
      violation of Export laws; or (ii) are intended to be used for any purposes
      prohibited by the Export laws, including, without limitation, nuclear,
      chemical, or biological weapons proliferation.  Furthermore, the Alliance
      Member shall not transfer the Programs outside of the territory for which
      the Alliance Member has Sublicense rights under this Agreement.

      The Alliance Member warrants that it will not grant Sublicenses in or
      ship any Programs to a country until it has completed all necessary
      government formalities in such country and upon reasonable request by
      Oracle, the Alliance Member provides evidence of completion of such
      formalities to Oracle.  The Alliance Member will indemnify Oracle for any
      losses, costs, liability, and damages incurred by Oracle as a result of a
      failure by the Alliance Member to comply with the necessary government
      requirements in any country.  The obligations under this Section shall
      survive the expiration or termination of this Addendum.  Upon Oracle's
      reasonable request, the Alliance Member shall make records available to
      Oracle to allow to confirm the Alliance Member's compliance with this
      Section."

7.    In Section 7, delete the second sentence of such Section and replace it
      with the following:

      "The license fee for Development Licenses shall be at a discount of 
      [*] off Oracle's standard list license fees in effect as of the
      Effective Date of this Addendum."


Other than the modifications set forth above, the terms and conditions of the
Addendum remain unchanged, and in full force and effect.

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

<PAGE>


The Effective Date of this Amendment One is_________________________, 1996.


CABLEDATA, INC.                              ORACLE CORPORATION

By:                                          By:
     ------------------------------------         -----------------------------

Name: Michael McGrail                        Name:
     ------------------------------------         -----------------------------

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


<PAGE>


                                    EXHIBIT A
                             COMMISSION REQUEST FORM

Alliance Member Name:__________________________________________________________

Company Name:__________________________________________________________________

Address:_______________________________________________________________________

City:____________________________ State:__________________________ Zip:________

Contact Name/Title:________________________ Phone Number:______________________

Type of Business Organization:_________________________________________________

Annual Revenue $:___________________________ # of Employees:___________________

Existing Software:_____________________________________________________________

Proposed Software Solution:____________________________________________________

Hardware Platform/Operating System:____________________________________________

Oracle Programs:_______________________________________________________________

Projected Order Date:__________________________________________________________

Projected Dollar amount of Order:______________________________________________

Amount of Commission requested:________________________________________________

Alliance Member direct marketing efforts:______________________________________

_______________________________________________________________________________

_______________________________________________________________________________

Additional Information:________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

Any Commission payable under this Commission Request Form shall be specific to
the license of Programs as specified above to the end user set forth above.  The
amount of Commission specified above shall not be applicable to any other
Program licenses by Oracle.

The Effective Date of this Commission Request Form shall be__________________.

EXECUTED BY THE ALLIANCE MEMBER:          EXECUTED BY ORACLE CORPORATION:

Authorized Signature:                     Authorized Signature:
                     ----------------                          ----------------

Name:                                     Name:
     --------------------------------          --------------------------------

Title:                                    Title:
      -------------------------------           -------------------------------


<PAGE>

                                                              EXHIBIT 10.21






<PAGE>

                              DEVELOPMENT AGREEMENT

     THIS DEVELOPMENT AGREEMENT ("Agreement") is entered into as of
__________________, 1994 (the "Effective Date"), by and between U.S. COMPUTER
SERVICES, a California corporation doing business as CableData and having its
principal place of business at 2969 Prospect Park Drive, Rancho Cordova, CA
95670 ("CableData"), and TANDEM COMPUTERS INCORPORATED, a Delaware corporation
having a place of business at 19333 Vallco Parkway, Cupertino, CA 95014
("Tandem").

                                    RECITALS

     A.   CableData owns, or has rights to, and currently licenses and
distributes, certain computer application software products used in market
segments of the cable television and telephony industries, including without
limitation, DTH (Direct to Home), DBS (Direct Broadcast Satellite), SMATV
(Single Master Antennae Television), MDS (Microwave Distribution System), 
MMDS (Multipoint Microwave Distribution System), CATV (Cable Television) and
TVRO (Television Receiving Only). The telephony industry includes, without
limitation, local telephone, personal communication networks, cellular, paging
and land lines. Such products include those that are designed to operate on the
Tandem Non-Stop Kernel operating system and the IBM RS6000 AIX operating system
and other UNIX systems. One of these CableData products is CableData's
Intelecable, which CableData owns all rights, title and interest in and to, and
which currently operates only on IBM's RS6000 AIX ("CableData's Intelecable").

     B.   In accordance with this Agreement, CableData now wishes to develop a
separate version of CableData's Intelecable to operate on Tandem's Non-Stop
Kernel and Integrity NR computer platforms and to enhance it for the domestic
convergence market (the "Product"), and to market, support and maintain the
Product in the above referenced market segments within selected countries once
it is developed.

     C.   Tandem wishes to assist CableData in its development of the Product by
providing certain [*] support specified in this Agreement.

     D.   Tandem and CableData intend to enter into a separate Tandem Alliance
Agreement (the "Alliance Agreement") on or about the Effective Date to (a)
further govern CableData's marketing, sale, maintenance and support of the
Product on Tandem platforms once it has been developed and (b) to govern
CableData's value added reselling or system integration of certain Tandem
NonStop Kernel and Integrity NR hardware and software products in the designated
market segments and countries.

     NOW, THEREFORE, in consideration of these premises and of the mutual
promises and conditions contained in this Agreement, Tandem and CableData hereby
agree as follows:

1.   DEFINITIONS.

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                 CableData Port of Intelecable-1

<PAGE>

     1.1  "Acceptance Criteria" are the mutually agreed upon written technical
and operational performance and functional criteria and Documentation standards
set forth in the Development Plan attached as Exhibit A. The Acceptance Criteria
will be reviewed from time to time and mutually agreed upon changes made as
appropriate.

     1.2  "Acceptance Date" means the date Tandem accepts the completed Product
in accordance with the Development Plan and this Agreement.

     1.3  "Deliverable" is a deliverable under the Development Plan, including,
but not limited to, object code, Specifications or Documentation.

     1.4  "Development Plan" is the written development plan for the Product
mutually agreed to by the parties to be set forth in Exhibit A, which includes,
but is not limited to, the Acceptance Criteria, Deliverables, Documentation,
Milestones and Specifications.

     1.5  "Documentation" is the documents, manuals, product descriptions and
other written materials for the Product, referred to, indicated or described in
the Development Plan, including, but not limited to, any user manuals, operating
materials or Specifications.

     1.6  "Eligible Products" means Tandem's Non-Stop Kernel and Integrity NR
hardware and software products described in Exhibit B attached hereto.

     1.7  "Milestone" is the completion of all of the Deliverables included in a
phase as described in the Development Plan.

     1.8  "Specifications" are the functional specifications, external and
internal design specifications, product descriptions and other Documentation
prepared by CableData and approved by Tandem, which define the purpose,
functions, features and performance of the Product set forth in the Development
Plan.

     1.9  "Subscriber" means, for purposes of this Agreement, each active
subscriber on CableData's Product during any month. A month, for purposes of
this definition, is the period between successive final month-end cutoffs for
CableData's or its subsidiaries' distributors' or agents' invoicing purposes. An
"active" subscriber, for purposes of this definition, is a residential,
business, educational or governmental entity subscribing to one or more services
in the Target Market.

     1.10 "System Libraries" means the code libraries described in the
Development Plan that interface CableData's Intelecable with the Tandem
Platforms.

     1.11 "The Tandem Platforms" are Tandem's NonStop Kernel and Integrity NR
computer systems and their successor systems, however designated, so long as the
successor platforms are binary compatible with the NonStop Kernel and Integrity
NR operating systems, whichever the case may be.

     1.12 "Target Market" means the CATV, DTH, DBS, MDS, MMDS, SMATV, TVRO,
telephony or convergence market segments in the countries set forth in attached
Exhibit C. The parties may agree from time-to-time to add certain market
segments or countries to, or delete them from, the Target Market.

                                                 CableData Port of Intelecable-2

<PAGE>

2.   DEVELOPMENT OF PRODUCT.

     2.1  GENERALLY  CableData will complete the development of the Product in
accordance with the Development Plan, including, but not limited to, porting the
System Libraries to be capable of operating on the Tandem Platforms. All
personnel assigned by CableData to the development of the Product shall possess
suitable technical skills and expertise consistent with the requirements of
their respective assignments under the Development Plan. Except for the "Tandem
Payment" described in Section 3.1 and the Tandem support described in Section
2.2, CableData will be responsible for all costs, facilities, equipment and
support related to the development of the Product and its other obligations
under this Agreement.

     2.2  TANDEM SUPPORT.  In addition to the Tandem Payment, Tandem will assist
CableData in developing the Product by providing CableData with a combined
credit for up to [*] to be applied solely towards (a) Eligible Products
purchased or licensed from Tandem and (b) Tandem technical and professional
services referred to in the Development Plan ("Professional Services"). Tandem
may use subcontractors to provide Professional Services under this Agreement.
Each time CableData acquires such Eligible Products and Professional Services,
Tandem will debit the [*] credit based on the discounted price Tandem then
customarily charges its Alliance Partners for the applicable Eligible Product or
Professional Service (the "Discount Price"). If CableData has not exhausted the
entire credit by the Acceptance Date, it will expire and unused credit amounts
will be retained by Tandem. The credit will apply only to Eligible Products
developed, owned and manufactured by Tandem and not to Eligible Products
acquired by Tandem from third parties. CableData may purchase or license a
reasonable quantity of such third party Eligible Products from Tandem at its
then-current cost. If CableData exhausts the entire credit, it must pay for any
additional Eligible Products and Tandem Professional Services it acquires at the
Discount Price. Eligible Products acquired by CableData under this Section 2.2
will be used solely by CableData to satisfy its obligations under this Agreement
and will be subject to Tandem's then-current Development System Policies and
Guidelines and its then-current local standard agreement(s) for the purchase and
the license of Tandem Eligible Products and the acquisition of Professional
Services. The Eligible Product purchase agreement(s) and the Professional
Services agreement will be mutually agreed to and entered into by the parties
during the course of the development of the Product (the "Product Purchase
Agreement" or the "Professional Services Agreement").

     2.3  DEVELOPMENT DEPENDENCIES.  Tandem recognizes that the Product will
utilize the Tuxedo transaction processing system. Tandem will use reasonable
efforts to make a version of Tuxedo which is suitable for Product acceptance
testing hereunder available on its Non-Stop Kernel platform no later than the
third calendar quarter of 1995. Tandem also recognizes that the Product must
utilize Sun Microsystems' ONC RPC protocol in order for it to be ported to the
Integrity NR platform. Therefore, Tandem will use reasonable best efforts to
make a version of such protocol available on the Integrity NR platform for
Product acceptance testing hereunder. Tandem further agrees to use reasonable
best efforts to make its D30 version of its NonStop Kernel operating system (a)
POSIX 1003.1 (v. 1990) compliant in accordance with release 1 under Tandem's
NonStop Kernel Open System Services (OSS) Product API implementation document
dated May 13, 1994, (b) POSIX 1003.2 compliant in accordance with release 1
under Tandem's NonStop Kernel Open System Services (OSS) Product Utilities
implementation document

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                 CableData Port of Intelecable-3

<PAGE>

dated September 15, 1994 and (c) National Language Support ("NLS") XPG4-I18.N
compliant, in each case for Product acceptance testing hereunder. If Tandem does
not (i) make Tuxedo available, (ii) achieve POSIX 1003.1 and POSIX 1003.2
compliance, or (iii) achieve NLS XPG4-I18.N compliance, in each case as and when
set forth above, then CableData's obligation to deliver the completed NonStop
Kernel or Integrity NR version of the Product, whichever the case may be, on the
date set forth in the Development Plan will be extended for a period of time
equal to the period of time that such availability or compliance is delayed, or
for such other period of time as the parties may otherwise agree upon in
writing, and the parties will revise relevant Milestone due dates accordingly.

     2.4  ACCEPTANCE TESTING.

          2.4.1  Each Deliverable will be created by CableData in accordance
with the Specifications and Development Plan to meet the Acceptance Criteria and
will be subject to Tandem's approval, also in accordance with the Acceptance
Criteria. Acceptance tests shall be run in the presence of representatives
designated by Tandem and CableData, respectively, using mutually agreed to test
data and cases corresponding to mutually agreed upon test procedures. The
acceptance tests shall establish whether each Milestone satisfies the Acceptance
Criteria and conforms to the Specifications applicable to such Milestone.

          2.4.2  Tandem shall notify CableData in writing within five (5)
business days of any failure(s) or deviation(s) of a Deliverable discovered in
acceptance testing. CableData shall submit to Tandem, as soon as possible, but
in any event within five (5) business days after receipt of notification of a
failure, a proposed plan of action to correct such failure which shall have a
reasonable opportunity for success. CableData will amend its proposed plan of
action as reasonably required by Tandem, and will promptly and diligently
implement the same upon Tandem's approval thereof.

     2.5  PROJECT CHANGE ORDERS AND SCHEDULE CHANGES.  From time to time during
the development phase of this Agreement, either party may submit requests which
alter, amend, enhance, add to, or reduce the other party's obligations under the
Development Plan. Each party shall evaluate such requests and promptly respond
to the other party, within fourteen (14) days, or such other period of time as
the Project Managers may mutually agree to, with a description of the technical,
price, schedule, and Deliverable impacts of the requested change for current and
subsequent phases of the development. Any additions, deletions, modifications,
or changes which affect any obligation of either party shall be documented in
project change orders issued hereunder ("Change Orders"). Such Change Orders
will include, but not be limited to, the agreed upon changes in Specifications,
the impact on the development schedule and the impact, if any, on the cost of
the development of the Product. Change Orders will be incorporated herein upon
acceptance in writing by both parties as if attached hereto.

     2.6  PROJECT MANAGEMENT.

          2.6.1  TANDEM PROJECT MANAGER.  Tandem shall designate a Project
Manager (the "Tandem Project Manager") who shall have overall responsibility for
the: (i) coordination of the development of the Product; (ii) acceptance of
Deliverables; and (iii) approval of Change Orders. The

                                                 CableData Port of Intelecable-4

<PAGE>

Tandem Project Manager shall be CableData's point of contact within Tandem for
the resolution of any problems that may arise in connection herewith.

          2.6.2  CABLEDATA PROJECT MANAGER.  CableData shall designate a Project
Manager (the "CableData Project Manager"), who shall have overall responsibility
for the: (i) direction and coordination of the development of the Product; and
(ii) approval of Change Orders. The CableData Project Manager shall be Tandem's
point of contact within CableData for the resolution of problems which may arise
in connection herewith.

          2.6.3  MANAGEMENT PROCEDURES.  The CableData Project Manager and
Tandem Project Manager shall establish and implement reasonable project
management procedures. Such project management procedures shall include, without
limitation, the following: (a) regularly scheduled project status meetings
occurring at least once a quarter during the development of the Product and
thereafter during the term of this Agreement to discuss the overall status of
the development of the Product and each party's ongoing obligations and efforts
under this Agreement (the "Quarterly Meetings"); (b) product design review
meetings in the development of the Specifications; (c) Change Order procedures;
(d) payment certification procedures; (e) acceptance testing; and (f) all other
management procedures reasonably deemed necessary by the CableData Project
Manager and Tandem Project Manager. The CableData Project Manager will provide a
project status report which will be generated upon CableData's completion of
each Milestone. In addition to the Quarterly Meetings, each Manager will meet
with the other Manager at his or her reasonable request to coordinate with
respect to any dispute which may arise relating to the scope, direction or
performance of the development of the Product.

          2.6.4  MEETINGS AND SCHEDULES.  In addition to the Project Manager,
each party will designate one (1) person to attend each Quarterly Meeting to be
a technical specialist to speak for that party with respect to technical
matters. The parties' Project Managers and technical representatives may be
replaced at any time, by written notice of the designating party to the other
party. Each party will cause its Project Manager and representative to attend
the Quarterly Meetings in locations and at times reasonably acceptable to both
parties. Each party shall be responsible for its own costs and expenses in
attending and participating in such meetings. The CableData Project Manager
shall also develop internal time and responsibility schedules as are necessary
to accomplish the development of the Product in accordance with this Agreement
and shall take appropriate action to maintain such schedules and to promptly
resolve development problems and Specification issues as they arise. The
CableData Project Manager shall supply copies of all such schedules to the
Tandem Project Manager, upon its reasonable request.

     2.7  PRODUCT MARKETING, MAINTENANCE AND SUPPORT.

          2.7.1  MARKETING.  CableData will actively, diligently and
competitively market the Product on the Tandem Platforms in all countries within
the Target Market in accordance with the Marketing Plan referred to below in
Section 2.7.2. On a case-by-case basis, the parties may agree to expand the
Target Market to other market segments or non-English speaking countries on
mutually agreeable terms. CableData may market the Product directly, through
subsidiaries, through local distributors selected by CableData, or through other
means or mechanisms selected by CableData, and

                                                 CableData Port of Intelecable-5

<PAGE>

CableData shall retain complete discretion in the appointment and use of such
distributors, means or mechanism, subject to its marketing obligations set forth
in Section 2.7 and the Alliance Agreement. CableData's use of distributors,
subsidiaries or agents to market the Product will not release it from any of its
obligations under this Agreement.

          2.7.2  MARKETING PLAN.  The Alliance Agreement will include a mutually
agreed to Marketing Plan for the Product. The Marketing Plan may provide for
joint participation in business and trade shows, exhibitions, and similar
events, cooperative marketing and communications with distributors and customers
and appointment of a marketing representative for each party. In accordance with
the Alliance Agreement, each party will cause its employees to cooperate with
the other party's employees in such joint or cooperative marketing efforts
agreed to under the Marketing Plan. If marketing representatives are provided
for, each party may change its representative upon notice to the other party.

          2.7.3  MAINTENANCE OF FUNCTIONALITY AND FEATURES.  During the term 
of this Agreement, CableData will ensure that the Product's functionality and 
features are available on each Tandem Platform and are equivalent to the 
highest level of functionality and features CableData provides for other 
versions of CableData's Intelecable, or its similar software products, which 
operate on non-Tandem computer platforms. This will include, without 
limitation, assuring that the System Libraries, and the Product as a whole, 
comply with (a) POSIX 1003.1 (v. 1990) in accordance with release 1 under 
Tandem's NonStop Kernel Open System Services (OSS) Product API implementation 
document dated May 13, 1994, (b) POSIX 1003.2 in accordance with release 1 
under Tandem's NonStop Kernel Open System Services (OSS) Product Utilities 
implementation document dated September 15, 1994 and (c) those portions of 
National Language Support XPG4-I18.N which are material to the full and 
proper operation of the Product in the language of any non-English speaking 
country that the parties may agree to add to the Target Market from 
time-to-time so that CableData is able to market such version of the Product 
in such country promptly after the parties have agreed to such addition. 
CableData will announce that such functionality and features will be 
available on the applicable Tandem Platform at the same time and to the same 
extent as it announces that the functionality and features are or will be 
available on any non-Tandem platform. CableData will provide such 
functionality and features on the applicable Tandem Platform no later than 
ninety (90) days after the date it first provides such functionality on any 
non-Tandem platform. Notwithstanding the foregoing, if an end-user customer 
dictates that the Product include third party software functionality or 
features that are not then available on either Tandem Platform, and CableData 
reasonably determines that it is not technically feasible to make such 
functionality or features available on either Tandem Platform under this 
Section 2.7.3, then before or promptly after making the functionality or 
features available on the non-Tandem platform CableData will give Tandem 
notice of that fact and the parties will thereafter promptly meet to review 
CableData's determination. If Tandem reasonably agrees that making such 
functionality or features available is technically unfeasible, then CableData 
need not make such functionality or features available on either Tandem 
Platform or the parties may agree to attempt to make the functionality or 
features available on mutually acceptable terms, which may include further 
Tandem monetary and/or technical support. On the other hand, if the parties 
do not agree on the technical feasibility of making such third party 
functionality or features available, then the dispute will be resolved in

                                                 CableData Port of Intelecable-6

<PAGE>

accordance with the dispute resolution provisions of Section 12.9 below and 
CableData's obligation to make the functionality or features available on the 
Tandem Platforms will be deferred until the dispute is resolved. If the 
maintenance of the functionality and features of the Product under this 
Section 2.7.3 results in any modifications or enhancements to or derivative 
works of the Product, such modifications, enhancements or derivative works 
will be considered part of the Product.

          2.7.4  ALLIANCE AGREEMENT.  Tandem and CableData will enter into the
Alliance Agreement. When entered into, the Alliance Agreement will govern the
marketing, sale, maintenance and support of the Product to and for Tandem
customers for use with Eligible Products, as modified or supplemented by any
additional or different terms in this Section 2.7, if any. The Alliance
Agreement will also govern any mutually agreed to discounts or fees provided to
CableData in connection with CableData acting as a value added reseller or
system integrator of Eligible Products or a Tandem Alliance software house.

3.   FUNDING OF THE DEVELOPMENT.

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                 CableData Port of Intelecable-7

<PAGE>

[*]

4.   COOPERATION.  Each party shall cooperate with the other party during the
term of the Agreement as follows:

     4.1  TECHNICAL DIRECTION AND INFORMATION.  Each party will use good faith
efforts to provide the other party with advance notices of new product
developments and releases that its technical representative under this Agreement
has determined have applicability and appropriateness to the Product and
Eligible Products as soon as practical, but in no event later than such
information is publicly disclosed by the party providing such information. The
receiving party shall treat such advance notices as confidential and proprietary
information of the other party in accordance with Section 7.4.

     4.2  NEW PRODUCTS.  As and when Tandem releases or makes available in a
country within the Target Market any new software products for use with Eligible
Products, Tandem and CableData may jointly evaluate such products for
applicability to the Product, and in the event that they reasonably agree that
such products are applicable to the Product, then Tandem may provide CableData
with a machine-executable copy of the product free of charge solely for
evaluation purposes in accordance with the terms of the Product Purchase or Loan
Agreement.

     4.3  EXISTENCE OF AGREEMENT.  Neither party shall disclose the existence of
this Agreement until such time as the parties shall mutually agree upon and
implement a public announcement, except to its employees, contractors or agents
who have a strict need to know about it in order for such party to meet its
obligations under this Agreement; thereafter, either party may disclose the
existence of this Agreement, but neither party shall disclose the specifics of
the Agreement to third parties without the prior written consent of the other
party, except to its employees, contractors or agents as set forth above, as may
be required by law or to its auditors in the internal operations of its
business.

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                 CableData Port of Intelecable-8

<PAGE>

     5.1  RETAINED DISCOUNTS AND INFLUENCE FEES.  Beginning on the first day of
the first calendar quarter following the Effective Date and for the remaining 
portion of a (5) year period commencing as of the Effective Date, Tandem will 
retain [*] during the first year of such period, [*] during the second year 
of such period and [*] during the third, fourth and fifth years of such 
period, of (a) any and all "Discounts" (defined in the Alliance Agreement) 
CableData receives under the Alliance Agreement for purchases, licenses or 
leases of any Tandem products, including, but not limited to, Eligible 
Products, for value added resale, system integration, internal use, service 
bureau or any other purpose, except for use as a Tandem development system 
("Retained Discounts"), and (b) any and all software house "Revenue Influence 
Fees" (defined in the Alliance Agreement), or any other fees CableData 
receives under the Alliance Agreement on revenue Tandem obtains from a 
customer's purchase or lease of Tandem hardware, which result from any and 
all CableData application or other software packages covered by the 
Agreement, including, but not limited to, the Product ("Retained Fees"). For 
example, if CableData is acting as a Tandem value added reseller in the 
second year of the retention period and is receiving a [*] Discount, then 
Tandem will retain [*] points of the Discount leaving CableData with a [*] 
percent [*] net Discount; and if in the third year of the retention period 
CableData then becomes a software house instead of a value added reseller and 
is receiving a [*] percent [*] Revenue Influence Fee, then Tandem will retain 
[*] percentage points of the Fee leaving CableData with a net Fee of [*] 
percent [*]. Cumulative Retained Discounts and Retained Fees during the 
retention period will be capped at [*].

     5.2  SUBSCRIBER FEE.  Beginning on the Effective Date and for a period of
five (5) years thereafter, CableData will accrue for Tandem's benefit a
Subscriber count fee as follows:  For each customer of CableData providing
Subscriber services in the Target Market (other than non-paying Beta site
customers) who uses the Product on or with any Eligible Product in any manner
(including, without limitation, via licensing or in a service bureau
arrangement), no matter who owns, leases, possesses, operates or controls the
Eligible Product itself, Tandem shall earn a fee of [*] per month per
subscriber (the "Subscriber Fee"). Cumulative Subscriber Fees during the five
(5) year Subscriber Fee period will be capped at [*].

     5.3  FEE OFFSETS.  Within thirty (30) days after Tandem receives each
monthly Subscriber Fee report from CableData described in Section 5.5 below, it
will, for CableData's benefit, (a) offset accrued and previously unoffset
Retained Discounts and Retained Fees against all accrued Subscriber Fees which
have not been previously offset against and (b) provide CableData with a written
report of the offset. For example, if at the end of the first month there are
[*] in Retained Discounts and Retained Fees and CableData's Subscriber Fee
report shows [*] in Subscriber Fees, the offset will leave no remaining
unoffset Retained Discounts and Retained Fees to carry forward for the next
month and [*] in remaining accrued Subscriber Fees. If in the next month
there are [*] in new Retained Discounts and Retained Fees and [*] in
new Subscriber Fees, then the [*] in newly accrued Retained Discounts and
Retained Fees will be offset against a total of $100,000 in new and previously
accrued and unoffset Subscriber Fees leaving a zero balance in both the accrued
Retained Discount and Retained Fees account and the accrued Subscriber Fee
account to carry forward for the next month.

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                 CableData Port of Intelecable-9

<PAGE>

     5.4  FINAL RECONCILIATION OF FEES.  At the end of the five (5) year period
described in Sections 5.1 and 5.2 above, if there are any remaining unoffset
Subscriber Fees CableData will pay this amount to Tandem by check at Tandem's
office at 19333 Vallco Parkway, Cupertino, CA 95014 within thirty (30) days
after the end of the (5) year period. If at the end of the five (5) year period
the cumulative amount of all accrued Subscriber Fees, including those which have
received an offset, does not equal [*] CableData does not have to pay
Tandem the difference between such cumulative amount and [*]. If at the
end of the five (5) year period, all remaining Retained Discounts and Retained
Fees exceed all remaining Subscriber Fees, CableData will not be entitled to the
excess which will be retained by Tandem.

     5.5  RECORDS AND REPORTS.  CableData shall keep complete and accurate
written records of Subscriber Fees and Tandem will keep complete and accurate
written records of Retained Discounts and Retained Fees. Beginning with the
second month following the Effective Date, for each calendar month during the
five (5) year period referred to in Section 5.1 and 5.2 above, CableData will
provide, within fifteen (15) days after the end of each month, a written report
so that Tandem can determine the Fees offset for that month. Not more than once
per calendar quarter, within thirty (30) days after written request to the other
party, Tandem or CableData shall, through an independent third party, be
entitled to conduct an audit and review of the financial records and reports of
the other party relating to Subscriber Fees and counts or Retained Discounts and
Retained Fees in order to verify the proper amounts of accrued Subscriber Fees
and offsets. The audit shall occur within normal business hours, at the
corporate headquarters in California of the party being audited. The auditing
party shall be entitled to retain an independent certified public accounting
firm to assist it with the audit. The parties shall be responsible for their own
costs and expenses in connection with the audit, unless the independent auditor
determines that the audited party's financial records were materially incomplete
or inaccurate by at least [*] percent [*], in which case it will bear the
other party's costs and expenses of that audit.

     5.6  TAXES.  All taxes, duties, fees and other governmental charges of any
kind, including withholding taxes (except based on Tandem's net income), which
are levied, assessed, or otherwise imposed by or under the authority of any
government or any political subdivision thereof, on revenues derived by
CableData, its subsidiaries, distributors or agents in connection with licenses
of the Product or Retained Discounts and Retained Fees and Subscriber Fees, will
not be considered a part of, deducted from, or offset against any Subscriber
Fees payable to or Discounts and Fees retained by Tandem under this Section 5.

6.   NON-EXCLUSIVITY.  The parties agree that the relationship between them set
forth in this Agreement is non-exclusive and each party is free to enter into
similar or other agreements with third parties.

7.   PROPRIETARY RIGHTS.

     7.1  OWNERSHIP OF THE PRODUCT.  CableData shall retain exclusive ownership
of all right, title and interest in and to the Product, and all portions thereof
(including, but not limited to System Libraries), now existing or to be
developed or adapted pursuant to this Agreement by

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                CableData Port of Intelecable-10

<PAGE>

CableData, Tandem, any third party or parties, or their respective employees,
representatives, agents, consultants, independent contractors, successors and
assigns, in any and all forms (including but not limited to source code and
machine-executable code), all derivative works thereof and enhancements thereto,
all Product documentation, work papers or written development materials relating
to any of the foregoing developed pursuant to this Agreement, and all
Intellectual Property Rights in any of the foregoing; and Tandem hereby assigns
to CableData all right, title, and interest in and to any of the foregoing
(including but not limited to, assignment of any copyrights it may have to the
System Libraries), which it may otherwise have or be deemed to acquire in the
Product. Upon CableData's request, Tandem agrees to assist CableData at
CableData's sole expense as may be reasonably required to perfect CableData's
rights as described in this Section 7.1, which assistance shall include the
execution of any and all instruments or documents that may be necessary or
convenient to establish, evidence, maintain, defend or enforce CableData's
rights as described in this Section 7.1. "Intellectual Property Rights" means
all right, title and interest in and to patents, patent applications,
copyrights, mask work rights, trademarks, trade names and trade secrets.

     7.2  OWNERSHIP OF ORIGINAL WORKS OF TANDEM.  CableData does not claim any
rights to original works created or owned by Tandem which are not part of the
Product, including but not limited to any Eligible Products. All Intellectual
Property produced by Tandem created prior to the effective date of this
Agreement or which is not part of the Product will be owned by Tandem, except to
the extent such work contains any portion of the Product or any other original
work of CableData. CableData recognizes and agrees that Tandem has and retains
any and all know-how, ideas, design concepts or techniques employed by Tandem in
rendering Professional Services to CableData under this Agreement which are not
covered by Section 8.1, including all Intellectual Property rights therein, and
may provide similar services to third parties.

     7.3  NO IMPLIED LICENSES.  This Agreement shall not be construed or
interpreted to grant to either party any right or license, by implication,
estoppel or otherwise, to sell, transfer, assign, develop, or make any use of
this Product or any of the Eligible Products, except as expressly provided in
this Agreement or in the Alliance Agreement. Without limiting the generality of
the foregoing sentence, except as set forth in the Alliance Agreement, neither
party shall have any rights to adapt, alter, localize, license or sublicense to
third parties any of the foregoing items, without the prior written consent of
the other party, which may be granted or withheld in the other party's sole
discretion. Except as expressly set forth in this Agreement or the Alliance
Agreement, neither party shall employ, retain, or subcontract with any third
party or parties to perform any obligations or exercise any rights it may have
under this Agreement, unless such party has first obtained the prior written
consent of the other party to such action, which consent will not be
unreasonably denied.

     7.4  CONFIDENTIALITY.

          7.4.1  PROTECTION OF CONFIDENTIAL INFORMATION.  Should either party
disclose any of its confidential information for any purpose in connection with
this Agreement, the party receiving the information shall maintain the
information in confidence, shall use at least the same degree of

                                                CableData Port of Intelecable-11

<PAGE>

care to maintain the secrecy of the information as it uses in maintaining the
secrecy of its own proprietary, confidential and trade secret information, shall
always use at least a reasonable degree of care in maintaining the secrecy of
the information, shall use the information only for the purpose of performing
its obligations under this Agreement unless hereafter agreed in writing by the
other party. Neither party shall disclose any such information to any person
except those of its employees, agents and contractors having a need to know in
order to accomplish the sole purpose stated above, and shall require each
employee, agent and contractor before he or she receives direct or indirect
access to the information, to acknowledge the confidential, proprietary and
trade secret nature of the information and to agree to be bound by this Section
7.4. Each party shall deliver to the other party, in accordance with any request
from the other party, all copies, notes, packages, diagrams, computer memory
media and all other materials containing any portion of the other party's
confidential information.

     7.4.2       LIMITATION ON OBLIGATIONS.  Neither party shall have an
obligation with respect to any portion of such information which (i) was known
to it prior to receipt from the other party, (ii) is lawfully obtained by either
party from a third party under no obligation of confidentiality or (iii) is or
becomes publicly available other than as a result of any act or failure to act
of either party. Confidential Information must be marked or otherwise clearly
designated as such in writing by the disclosing party prior to disclosure or
within five (5) days of disclosure if provided orally.

     7.4.3  INCLUDED WITHIN CONFIDENTIAL INFORMATION.  For purposes of this
Section 7.4, confidential information made available to Tandem by CableData may
include, without limitation, the Product and other CableData software
application products made available to Tandem in the course of performance of
this Agreement, and all documentation and code relating thereto, and
confidential information made available to CableData by Tandem may include
without limitation all information relating to the Eligible Products and any
other hardware or software Products Tandem provides CableData in the course of
performance of this Agreement, and all documentation and code related thereto.
Confidential information shall also include, but is not limited to, either
party's proprietary, technical, developmental, marketing, sales, operating
performance, cost, know-how, business and process information, computer
programming techniques, and all record-bearing media containing or disclosing
such information and techniques, as well as any samples, models or prototypes,
or parts thereof.

     7.5  USE OF TRADEMARK, NAME.  Except as set forth in the Alliance
Agreement, each party agrees not to use the other's name, trade name, trademark,
service mark, or other designation without such other party's prior written
consent.

8.   WARRANTY.  CableData represents and warrants that (a) it owns all right,
title and interest in and to CableData's Intelecable and in and to all of the
Intellectual Property it will use to develop the Product and perform its
obligations under this Agreement or (b) it has the authority to do so without
infringing the rights of any third party or creating any financial obligation to
any third party.

9.   INDEMNIFICATION.  CableData will defend or settle any claim against Tandem
(a) resulting from the performance or use of the Product and any information
CableData supplies about the same, or (b) that the Product

                                                CableData Port of Intelecable-12

<PAGE>

infringes any patent, utility model, industrial design, copyright, trade secret,
mask work, trademark or servicemark, provided Tandem promptly notifies CableData
in writing of the claim and cooperates with CableData in and grants it sole
authority to control the defense and any related settlement. CableData will pay
the costs of such defense and settlement and any costs and damages finally
awarded against Tandem. THE ABOVE STATES TANDEM'S EXCLUSIVE REMEDY AND
CABLEDATA'S ENTIRE LIABILITY FOR CLAIMS OF INFRINGEMENT BY THE PRODUCT.

10.  NO CONSEQUENTIALS.  NEITHER PARTY WILL BE LIABLE TO THE OTHER PARTY FOR ANY
SPECIAL, PUNITIVE, MORAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES, WHETHER OR NOT
FORESEEABLE AND WHETHER OR NOT THE OTHER PARTY IS INFORMED OF THEIR POSSIBILITY,
INCLUDING, BUT NOT LIMITED TO, LOSS OF RECORDS OR DATA, GOODWILL, PROFITS, USE
OF MONEY OR PRODUCTS, STOPPAGE OF WORK OR IMPAIRMENT OF OTHER ASSETS, ARISING
OUT OF CONTRACT OR TORT.

11.  TERM AND TERMINATION.

     11.1  TERM.  This Agreement shall become effective on the date first
written above and shall continue in effect thereafter for a period of five (5)
years unless sooner terminated pursuant to this Section 11.

     11.2  TERMINATION.

          11.2.1  TERMINATION FOR BREACH OR INSOLVENCY.  A party may terminate
this Agreement, effective upon dispatch of written notice of termination to the
other party, without judicial notice or resolution, if: (a) the other party
breaches any of its material obligations under this Agreement and fails to cure
such breach within thirty (30) days after receipt of notice specifying the
breach; or (b) the other party ceases to conduct business in the normal course;
becomes insolvent; enters into suspension of payments, moratorium,
reorganization or bankruptcy; makes a general assignment for the benefit of
creditors; admits in writing its inability to pay debts as they mature; suffers
or permits the appointment of a receiver for its business or assets; or avails
itself of or becomes subject to any other judicial or administrative proceeding
that relates to insolvency or protection of creditors' rights.

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                CableData Port of Intelecable-13

<PAGE>

[*]

          11.2.2  TERMINATION OTHER THAN FOR BREACH.

               11.2.2.1  ELECTION TO TERMINATE.  Notwithstanding anything to the
contrary in this Agreement, prior to Tandem's acceptance of both the final
Development Plan and the final Marketing Plan referred to in Section 3.1(b)
above, if for any reason whatsoever, Tandem or CableData decides in its sole and
absolute discretion not to agree (a) to the preliminary Development Plan, or any
part thereof, (b) to the final Development Plan, or any part thereof, (c) to the
final Marketing Plan, or any part thereof or (d) to enter into the Alliance
Agreement, then either party (the "Terminating Party") may provide the other
party (the "Non-Terminating Party") with notice that it elects to end its
participation in the development of the Product and terminate the Agreement.
However, within five (5) business days of the date of the Non-Terminating
Party's receipt of such notice, the Non-Terminating Party may provide the
Terminating Party with notice requesting that a Vice President designated by
each party jointly meet with all Project Managers and technical representatives
at an agreed upon date and time within five (5) business days of the Terminating
Party's receipt of such notice to confer regarding the Terminating Party's
election to terminate. If the meeting is requested, each party will cause such
persons to attend the meeting. If the parties have not agreed in writing within
five (5) days from the date of the meeting to continue the Agreement it will be
considered terminated at the end of such (five) 5 day period. Each party may
change its designated Vice President with notice to the other party and the
decisions of the Vice Presidents will bind the respective party. If the Non-
Terminating Party does not request the above described meeting in the time
provided for above, then the Agreement will be deemed terminated as of the date
of the Terminating Party's notice of election to terminate. [*]

               11.2.2.2  REMEDY FOR ELECTION TO TERMINATE.  If the Agreement is
terminated by either party in the manner set forth in Section 11.2.2.1 above, a
party's election to terminate will not be considered a breach of this Agreement
by such party. In addition, no matter which party elects to terminate the
Agreement, within thirty (30) days of the date of termination, [*] and 
notwithstanding anything to the contrary in this Agreement, neither party 
will have any further liability of any kind to the other party in connection 
with this Agreement and the development of the Product, except for liability 
for any breach of the Agreement which occurred prior to such termination and

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                CableData Port of Intelecable-14

<PAGE>

any liability in connection with rights and obligations under this Agreement
which survive its termination under Section 12.18 or survive under the relevant
provisions of a Product Purchase Agreement or a Professional Services Agreement.

     11.3  EFFECT OF TERMINATION.  Except as otherwise expressly stated in this
Section 11.2 or in Section 12.18 below (Survival), upon any termination of this
Agreement all rights and obligations of each party to this Agreement shall
expire and be of no further force or effect. Upon the termination of this
Agreement for any reason, each party will promptly deliver to the other party
all of the other party's Confidential Information in its possession or control.

     11.4  EXCLUSIVE REMEDY.  THE REMEDIES PROVIDED FOR IN SECTIONS 11.2.1.1,
11.2.1.2 AND 11.2.2.2, AND ANY REMEDIES EXPRESSLY PROVIDED FOR ELSEWHERE IN THIS
AGREEMENT, STATE THE ENTIRE LIABILITY OF A PARTY, AND THE SOLE AND EXCLUSIVE
REMEDY OF THE OTHER PARTY, FOR THE ACTS OR OMISSIONS OF A PARTY WHICH GIVE RISE
TO SUCH REMEDIES, EXCEPT FOR ANY REMEDIES PROVIDED FOR BREACH OF THE
CONFIDENTIALITY PROVISIONS OF THIS AGREEMENT.

[*]

12.  MISCELLANEOUS PROVISIONS.

     12.1  INDEPENDENT CONTRACTORS.

          12.1.1  No provision of this Agreement shall be construed to
constitute either party as the agent, servant, employee, partner, or joint
venturer of the other party. The parties to this Agreement are and shall remain
independent contractors. Each party shall retain exclusive management,
direction, and control of its employees and the work to be performed by it
hereunder.

          12.1.2  All personnel assigned by one party to work with the other
party pursuant to this Agreement shall remain employees of the assigning party,
and shall possess suitable technical skills and expertise consistent with the
requirements of their respective assignments. Each party shall cause any of its
employees assigned to provide services at the other party's facilities to comply
with all reasonable regulations and instructions while at such facilities, which
were previously provided to the other party or the employee. Each party shall
have the right to exclude from its premises any persons who refuse to
individually sign a nondisclosure and confidentiality agreement substantially in
the form of and no more restrictive than the provision of Section 7.4 herein.
The assigning party shall indemnify and hold the other party harmless from any
and all damages and losses finally awarded for any claims, suits or liability
for bodily injury, death, or damage to real property or tangible personal
property, which results from any failure by such personnel to comply with such
regulations and instructions (other than the negligence of the party to whom the
personnel were assigned).  The indemnifying party shall have sole control of any
litigation and/or settlement and the indemnified party will promptly

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                CableData Port of Intelecable-15

<PAGE>

notify the indemnifying party when it first learns of such suit, claim or
action. The indemnified party will provide the indemnifying party with
reasonably requested assistance in the defense or settlement of the suit, claim
or action.

     12.2  NO ENDORSEMENT.  TANDEM DOES NOT APPROVE, ENDORSE, WARRANT OR
GUARANTEE THE PRODUCT. CABLEDATA WILL NOT REPRESENT TO ANY THIRD PARTY THAT
TANDEM HAS APPROVED, ENDORSED, WARRANTED OR GUARANTEED THE PRODUCT WITHOUT THE
SPECIFIC PRIOR WRITTEN CONSENT OF TANDEM.

     12.3  COUNTERPARTS.  This Agreement may be executed in counterparts, each
of which shall be deemed an original instrument, but both of which together
shall constitute only one and the same instrument.

     12.4  ASSIGNMENT.  Neither this Agreement nor any right or obligation
hereunder is assignable or delegatable in whole or in part, whether by operation
of law or otherwise, except (a) as otherwise expressly set forth in this
Agreement or (b) upon prior written consent of the other party, which consent
will not be unreasonably withheld. Any assignment or delegation which violates
this Section is void. Notwithstanding the foregoing, this Agreement shall be
binding upon, and shall inure to the benefit of, the parties hereto and their
respective successors and assigns. The successor or assign of a party hereto
shall execute and deliver all documents and instruments reasonably requested by
the other party to evidence and confirm its obligations under this Agreement.

     12.5  NOTICES AND OTHER COMMUNICATION.  Every notice or other communication
required or contemplated by this Agreement to be given by any party shall be
delivered either by (i) personal delivery, (ii) postage prepaid, return receipt
requested, registered or certified mail (airmail if available), or the
equivalent of registered or certified mail under the laws of the country where
mailed, (iii) nationally recognized overnight courier, such as Federal Express
or UPS, or (iv) facsimile with a confirmation copy sent simultaneously by
postage prepaid, return receipt requested, registered or certified mail, in each
case addressed to the party for whom intended at the following address:

     To CableData:       U.S. Computer Services
                         2969 Prospect Park Drive
                         Rancho Cordova, CA 95670
                         Attn:  Bob Crowley, VP Marketing
                         Division
                         Facsimile:  (916) 636-5750

     With a copy to:     General Counsel
                         Facsimile:  (916) 636-4561

     To Tandem:          Tandem Computers Incorporated
                         19191 Vallco Parkway
                         Cupertino, CA 95014
                         Attn:  Vice President & General Manager Communications
                         Division
                         Facsimile:  (408) 285-5458

or at such other address as a party previously shall have designated by written
notice to the other party. Notice by registered or certified mail

                                                CableData Port of Intelecable-16

<PAGE>

shall be effective on the date it is officially recorded as delivered to the
intended recipient by return receipt or equivalent, and in the absence of such
record of delivery, the effective date shall be presumed to have been the 5th
business day after it was deposited in the mail. All notices and other
communications required or contemplated by this Agreement to be delivered in
person or sent by courier shall be deemed to have been delivered to and received
by the addressee and shall be effective on the date of personal delivery;
notices delivered by "tested" telex or by facsimile with simultaneous
confirmation copy by registered or certified mail shall be deemed delivered to
and received by the addressee and effective on the first business day in the
location where the facsimile was received after the date sent. Notice not given
in writing shall be effective only if acknowledged in writing by a duly
authorized representative of the party to whom it was given.

     12.6  LAW TO GOVERN.  The validity, construction and enforceability of this
Agreement shall be governed in all respects by the laws of California, except
its choice of law provisions, whether or not one or more of the parties shall
now be or hereafter become a resident of another state or country.

     12.7  SUBJECT HEADINGS.  The subject headings of the Articles and Sections
of this Agreement are included for the purpose of convenience only, and shall
not affect the construction or interpretation of any of its provisions.

     12.8  NO WAIVER OF RIGHTS.  All waivers hereunder must be made in writing,
and failure at any time to require any other party's performance of any
obligation under this Agreement shall not affect the right subsequently to
require performance of that obligation or any other obligation under this
Agreement. Any waiver of any breach of any provision of this Agreement shall not
be construed as a waiver of any continuing or succeeding breach of such
provision or a waiver of modification of the provision or any other provision of
this Agreement.

     12.9  SETTLEMENT OF DISPUTES.  Any controversy or claim between the parties
arising out of or in connection with this Agreement shall first be submitted for
resolution as follows. Within thirty (30) days of the time that such dispute or
controversy arises, a Vice President of each party shall confer in good faith in
an attempt to resolve the controversy or claim. The decisions of the Vice
Presidents will be final and binding on the parties. Either party may change its
representative at any time with prior notice to the other party. A party's
election to terminate this Agreement under Section 11.2.1.1 or 11.2.1.2 is not
subject to the foregoing. A party's election to terminate this Agreement under
Sections 11.2.2 and 12.19 will be resolved solely in the manner described in
those Sections.

     12.10  STATUTE OF LIMITATIONS.  Neither party will bring a legal action
related to this Agreement more than four (4) years after the cause of action
arose. Nothing in this Agreement will affect the limitation period applicable to
any action or proceeding for (i) unauthorized use or disclosure of confidential
information provided under this Agreement or (ii) infringement of proprietary
rights.

     12.11  ENTIRE AGREEMENT.  This Agreement represents the entire
understanding and agreement between the parties concerning the subject matter

                                                CableData Port of Intelecable-17

<PAGE>

hereof and supersedes any and all prior negotiations, understandings or
agreements in regard thereto, oral or written.

     12.12  EXPENSES.  Except as expressly provided herein to the contrary, each
party to this Agreement shall be solely responsible for its expenses incurred in
connection with the negotiation, preparation, execution, delivery and
performance of this Agreement.

     12.13  AMENDMENTS.  This Agreement or the Exhibits hereto may not be
modified except by an instrument or instruments in writing signed by the party
or parties against whom enforcement of such modification is sought.

     12.14  INCORPORATION BY REFERENCE.  Exhibits A through F attached to this
Agreement and referred to herein are hereby incorporated by reference into this
Agreement.

     12.15  SEVERABILITY.  Whenever possible, this Agreement shall be
interpreted in such a manner as to be effective and valid under applicable law,
but if any provision of this Agreement should be prohibited or invalid under
applicable law, such provision shall be construed as ineffective to the extent
of such prohibition or invalidity without invalidating the remainder of such
provision or the remaining provisions of this Agreement.

     12.16  EXPORT CONTROLS.  CableData acknowledges that the Eligible Products,
and all related confidential and technical information, documents and materials,
are subject to export controls under the U.S. Export Administration Regulations.
CableData will, cause its subsidiaries, affiliates, agents, distributors, and
customers to:  (i) comply strictly with all legal requirements established under
these controls; (ii) cooperate fully with Tandem in any official or unofficial
audit or inspection that relates to these controls and (iii) not export, re-
export, divert, transfer or disclose, directly or indirectly, any Eligible
Products, or related confidential or technical information, document or
material, or any direct product thereof, to any of the countries currently or
subsequently listed in the U.S. Export Administration Regulations, or to any
national or resident thereof, without obtaining the prior written authorization
of Tandem and the U.S. Commerce Department.

     12.17  UNLAWFUL PAYMENTS.  Neither CableData nor Tandem will use any
payment or other benefit derived from the other to offer, promise or pay any
money, gift or any other thing of value to any person for the purpose of
influencing official actions or decisions affecting this Agreement, while
knowing or having reason to know that any portion of this money, gift or thing
will, directly or indirectly, be given, offered or promised to (i) any person
acting in an official capacity for any government or its instrumentalities
(including government-owned or controlled corporations) or any non-governmental
client or prospective client or (ii) any political party, party official or
candidate for political office.

     12.18  SURVIVAL.  Each party's rights and obligations under Sections 5
(Recoupment of Tandem Payment) and Section 12.19 (Export Controls) are expressly
intended to survive the expiration or termination of this Agreement. However, if
the Agreement is terminated in accordance with Sections 11.2.1.1 or 11.2.1.2 of
Section 11.2.1, then each party's rights and obligations under Section 5 will
not survive, except with respect to the Integrity NR version of the Product if
it is completed before termination and

                                                CableData Port of Intelecable-18

<PAGE>

[*] In addition, no expiration or earlier termination of this Agreement shall 
relieve either party of its rights or obligations under Section 7 of this 
Agreement (Proprietary Rights), which rights and obligations are expressly 
intended to survive any such expiration or termination.

     12.19  FORCE MAJEURE.  Neither party will be liable for any failure or
delay in performing an obligation that is due to causes beyond its reasonable
control, such as natural catastrophes, governmental acts or omissions, laws or
regulations or labor strikes. If any such cause continuously prevents or delays
performance of this Agreement for more than sixty (60) days, the party awaiting
performance may elect to terminate this Agreement by providing notice to the
other party in the manner set forth in Section 11.2.2.1, and the other party may
invoke the request for meeting procedures set forth in such Section. In the
event a force majeure event occurs prior to Tandem's acceptance of the completed
Product and Tandem is the party awaiting performance, if Tandem thereafter
terminates this Agreement as provided for above, [*].

     IN WITNESS WHEREOF, the parties have caused their authorized
representatives to execute this Agreement in each party's name as of the
Effective Date.

     "CableData"                                 "Tandem"

U.S. COMPUTER SERVICES,                 TANDEM COMPUTERS INCORPORATED
a California corporation
By: /s/ Robert D. Crowey                By: /s/ John Sims
   ---------------------------             --------------------------

Name: Robert D. Crowey                  Name: John Sims
     -------------------------               ------------------------

Title:  Senior Vice President           Title:  Vice President
_____________________________           ___________________________

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                CableData Port of Intelecable-19

<PAGE>

                                    EXHIBIT A


                                Development Plan

                                                CableData Port of Intelecable-20

<PAGE>

                                    EXHIBIT B


                            Eligible Tandem Products

The following Tandem hardware and software products described in Tandem's
published Price List as of the Effective Date:

1.   All servers running the Guardian operating system and all associated
attached peripheral devices.

2.   Himalaya series servers (currently K100, K1000 and K10000) running the
NonStop Kernel operating system and all associated attached peripheral devices,
including systems designated by Tandem as their successors.

3.   Integrity NR servers (NR4401, NR4412, NR4436 designations) running UNIX
operating system 5.4 (IRIX or Tandem based UNIX operating systems) and all
associated attached peripheral devices, including systems designated by Tandem
as their successors.

                                                CableData Port of Intelecable-21

<PAGE>

                                    EXHIBIT C


                             Target Market Countries

United States of America; Guam; Puerto Rico; Canada; United Kingdom of Great
Britain and Northern Ireland; Australia

                                               CableData Port of Intelecable-22


<PAGE>

                                                                  EXHIBIT 10.22



<PAGE>

[LOGO] HEWLETT
       PACKARD                                                 PORTING AGREEMENT


This Porting Agreement ("Agreement") is made effective JANUARY 25, 1996 (the 
                                                       ----------------
"Effective Date"), between CABLEDATA INC., ("Supplier"),
                           ---------------
a CALIFORNIA CORPORATION, and HEWLETT-PACKARD COMPANY ("HP"), a California 
  ----------------------
Corporation.


1. PORT AND ENHANCEMENTS

   1.1.  Supplier has developed TELECOM APPLICATION software that facilitates
         SUBSCRIBER MANAGEMENT FOR INTEGRATED CABLE AND TELEPHONY as more 
         particularly described in Exhibit A ("Programs').

   1.2.  HP and Supplier desire to have the Programs ported to run on the 
         HP 9000 computer systems in all their supported configurations and with
         all associated peripherals ("HP Products").

   1.3.  Supplier shall port the Programs to the HP Products in accordance with 
         the deliverables, specifications, development schedule, and other 
         requirements contained in Exhibit A.

   1.4.  In order to assist Supplier in its porting obligations under this 
         Agreement, HP shall provide access to HP Products in accordance with 
         Exhibit B.

   1.5.  Any versions, releases, modifications. updates, upgrades, error 
         corrections, new features, or new functionalities developed by Supplier
         for the Programs ("Enhancements") shall be made commercially available 
         by Supplier on the HP Products no later than the date by which each 
         such Enhancement is commercially available on Supplier's development 
         platform.

   1.6.  Except to the extent of any performance limiting features of an HP 
         Product, all ported Programs and Enhancements shall perform on the HP 
         Products with features, functionality, and speed no less than that of 
         the performance of the Programs and Enhancements on IBM & TANDEM 
         platforms.

   1.7.  Supplier shall adapt all Programs and Enhancements to operate on object
         code compatible revisions, releases and successors to the HP Products.

   1.8.  Supplier shall conduct performance tests on each ported Program or
         Enhancement consistent with the criteria and procedures specified in 
         Exhibit C. When a Program or Enhancement successfully passes those 
         tests, Supplier shall deliver to HP a copy of the Program or 
         Enhancement, together with the test results and all other deliverables 
         required under this Agreement.

   1.9.  A port shall be complete when the ported Program or Enhancement 
         operates on the HP Products in accordance with sections 1.3, 1.6, and 
         1.8 above.

   1.10. Except as provided in section 1.4 above and in Exhibit B&E Supplier
         shall bear all costs and expenses with respect to performing its 
         obligations under this Agreement.


2. MARKETING

   2.1.  Supplier shall be solely responsible for all marketing and 
         distribution of Programs and Enhancements.  Supplier shall market and 
         distribute all Programs and Enhancements on the HP Products to the 
         same extent and for the same duration as on comparable non-HP 
         platforms.

   2.2.  Supplier shall promote all Programs and Enhancements on the HP Products
         in a commercially reasonable fashion.  Such promotion shall include a 
         statement in Supplier's literature of the availability of the Programs 
         and Enhancements on the HP Products.

   2.3.  Except as expressly provided in this Agreement, neither HP nor 
         Supplier has made any promise or other representation regarding any 
         Program or Enhancement, including with respect to the success of any
         Program or Enhancement in the marketplace.

   2.4.  Upon completion of the port of the Programs initially ported pursuant 
         to sections 1.3, 1.8, and 1.9 above, HP may assist Supplier in 
         becoming a U.S. Value Added Business in accordance with HP's standard 
         programs and agreements.

   2.5.  Supplier shall provide HP with 0 (ZERO) free copies of each Program and
         Enhancement. including all associated documentation.  Such copies shall
         be for demonstration, benchmarking, support, and training purposes.

   2.6.  In addition to the free copies specified above, Supplier shall grant 
         HP a N/A percent discount from its standard published price list for 
         all Programs and Enhancements purchased by HP.


3. SUPPORT

   3.1.  Supplier shall be solely responsible for all maintenance and support 
         of Programs and Enhancements on the HP Products, which maintenance and
         support shall be at least equal to that which Supplier provides on IBM
         & TANDEM platforrns.  At a minimum, Supplier shall:

         (a)  Cure defects in the Programs.  Enhancements, and associated 
              documentation pursuant to the requirements set forth in Exhibit C;

         (b)  Maintain a telephone number for HP and end-users to call during 
              Supplier's business hours to report defects and to otherwise 
              receive assistance; and

         (c)  Coordinate problem resolution with HP when operational problems 
              appear traceable to HP Products.


<PAGE>

   3.2.  Supplier and HP have designated, in Exhibit D. Account Managers to 
         facilitate communication between Supplier and HP. The Account Managers
         may be changed by either party upon notice to the other.

   3.3.  Supplier shall support each Program and Enhancement for five years 
         after the date that Supplier discontinues distributing the Program or 
         Enhancement on the HP Products.

4. WARRANTY AND INDEMNITY

   4.1   Supplier warrants that:
         (a) It has all rights necessary to perform this Agreement, without 
             restriction; and

         (b) The Programs, Enhancements, and associated documentation and 
             intellectual property do not violate or infringe any third party's 
             intellectual property rights.

   4.2.  As used in this Agreement, the term "intellectual property" means all 
         patents, tradenames, trade secrets, trademarks, service marks, 
         copyrights, and other similar proprietary rights.

   4.3.  Supplier shall defend at its sole expense any claim, suit, or 
         proceeding brought against HP or end-users that any Program, 
         Enhancement, or associated documentation violates or infringes any
         third party's intellectual property right (collectively "Infringement
         Action"). HP shall give Supplier the authority, information, and 
         assistance (at Supplier's expense) to defend the Infringement Action.
         Supplier shall pay all damages and costs awarded in any Infringement 
         Action against HP or end-users.

   4.4.  EXCEPT AS EXPRESSLY PROVIDED IN THIS AGREEMENT, NEITHER PARTY SHALL BE
         LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
         (INCLUDING BUT NOT LIMITED TO LOSS OF PROFITS) ARISING OUT OF ANY 
         PERFORMANCE OF THIS AGREEMENT OR IN FURTHERANCE OF THE PROVISIONS AND
         OBJECTIVES OF THIS AGREEMENT. THE FOREGOING EXCLUSION OF DAMAGES SHALL
         APPLY REGARDLESS OF WHETHER SUCH DAMAGES ARE BASED ON TORT, WARRANTY, 
         CONTRACT OR ANY OTHER LEGAL THEORY, EVEN IF ADVISED OF THE POSSIBILITY
         OF SUCH DAMAGES.

5. PROGRAMMING MATERIALS

   5.1   Supplier hereby grants HP and its subsidiaries a present, worldwide,
         non-exclusive, fully paid-up license to use the Programming Materials
         to support and maintain the Programs on the HP Products. HP's 
         license shall be exercisable only in the event Supplier ceases to do 
         business in the normal course or enters into any proceeding in 
         bankruptcy, whether voluntary or involuntary.

   5.2   The term "Programming Materials" includes the source code version of 
         each Program and Enhancement, in a format acceptable to HP, together 
         with all associated printouts, listings, programmers' notes, technical
         documentation, custom compilers, utilities, libraries, test suites, 
         build scripts, and other materials necessary for HP to exercise its 
         license.

   5.3.  Supplier shall provide all Programming Materials to HP on request at 
         any time after exercise of the license by HP.

   5.4.  Except as provided in this article 5, this Agreement grants no license
         in the Programs or Enhancements to HP.

6. MISCELLANEOUS

   6.1.  All notices under this Agreement shall be in writing and shall be 
         considered given as of twenty-four hours after sending by electronic 
         means (such as telecopy) or by air courier service, or as of forty-
         eight hours after deposit in the U.S. Mail (certified, return receipt
         requested). All notices shall be sent to the respective Account 
         Manager at the address listed on Exhibit D.

   6.2.  Neither party may, without the prior written consent of the other 
         party, publicize or otherwise disclose the terms or existence of this 
         Agreement to any third party.

   6.3.  Neither party shall assign or otherwise transfer any rights or 
         responsibilities set forth in this Agreement.

   6.4.  The following Exhibits are fully incorporated in this Agreement by 
         the first reference in this Agreement to each such Exhibit:
 
         (a) Exhibit A, the Programs, Program Specifications, and Deliverables;

         (b) Exhibit B, Access to HP Products;

         (c) Exhibit C, Performance Criteria and Error Definitions;

         (d) Ecxhibit D, Account Managers; and

         (e) Exhibit E, PAYMENT MILESTONES

   6.5.  The remedies contained in this Agreement are in addition to any other 
         remedies available at law or in equity.

   6.6.  Neither party's failure to exercise any right under this Agreement 
         shall be deemed a waiver of such right.

   6.7.  This Agreement represents the entire understanding and agreement 
         between the parties as to the matters set forth. Any representation, 
         promise, or condition not explicitly set forth in this Agreement 
         shall not be binding on either party.

   6.8.  This Agreement may only modified by a writing signed by authorized 
         representatives of both Supplier and HP.



         CableData, Inc.               HEWLETT-PACKARD COMPANY
- -------------------------------------

By:   /s/ Jerry Johnson                By:    /s/ Nancy Burgess
   ----------------------------------      ------------------------------------

Typed Name:    Jerry Johnson           Typed Name:      Nancy Burgess
           --------------------------              ----------------------------

Title:    Chief Technology Officer     Title:     Industry Marketing Manager
       ------------------------------         ---------------------------------


<PAGE>


                                  EXHIBIT A

1    Programs to be Ported:
     All programs associated with the market release of Intelecable 2.61.
     Release 2.61 will include all programs and system libraries currently in
     the full version of the Intelecable product.

2.   Program Specifications:
     All features, functional and performance criteria that are associated 
     with Intelecable 2.61.

3.   Deliverables:
     Deliverables will include all Intelecable 2.61 executables and product
     documentation. Intelecable executables will be provided on HP-UX 
     acceptable media and format. User and system documentation will be 
     provided to HP in hard copy form.

[*]

     Any changes in the development schedule shall be mutually agreed upon in
     writing by both parties.

     Additionally, the next available release after Intelecable 2.61 supporting
     the HP platform will be Intelecable 2.91, since the porting project
     duration extends beyond the Intelecable 2.71 release date.

5.   Supplier and HP will enter into an Independent Software Vendor (ISV)
     agreement for computer products under HP's Channel Partner program.  In 
     order to qualify for demo/development discounts, a demo/development 
     agreement or a PA-RISC Developer agreement will also be required.

6.   Supplier agrees to provide HP with an annual business plan and quarterly
     sales forecasts on an ongoing basis.

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

<PAGE>

                                   EXHIBIT B

                              ACCESS TO HP PRODUCTS
                              ---------------------

1.  To assist Supplier in its porting obligations under the Agreement, HP will
    load Supplier the following HP Products- HP 9000 SERIES 800 MODEL K400 AND
    MODEL E55 (CONFIGURATIONS ATTACHED) TO BE USED AT SUPPLIER SOFTWARE 
    DEVELOPMENT CENTER (the "Loaner Products").  The description of the Loaner
    Products is subject to any changes evidenced in miscellaneous shippers 
    issued from time to time by HP. HP retains title and ownership to the 
    Loaner Products, although Supplier shall be responsible for all risk of 
    loss or damage to the Loaner Products until returned to HP.

2.  The Loaner Products will be loaned to Supplier UNTIL 24 MONTHS FOLLOWING
    RECEIPT OF EQUIPMENT (the "Loan Period").  If Supplier does not purchase 
    the Loaner Products from HP pursuant to section 7 below, the Loaner 
    Products shall be returned to HP immediately upon the expiration of the 
    Loan Period, at Supplier expense.

3.  Subject to availability, HP shall ship the Loaner Products to Supplier as
    soon as practical after all necessary documents to evidence and perfect 
    HP's security interests in the Loaner Products, as required by applicable 
    law and as elected by HP, are recorded or filed.  Supplier hereby 
    irrevocable appoints HP as its attorney-in-fact to execute any document 
    necessary for HP to protect its right, title, and interest in the Loaner 
    Products.

4.  During the Loan Period, HP will provide, at no charge to Supplier, remedial
    hardware maintenance on the Loaner Products on an as-needed basis to cover
    equipment failures. Support for HP software on the Loaner Products 
    throughout the Loan Period shall be handled as follows: CABLEDATA WILL 
    PURCHASE SOFTWARE SUPPORT FOR THEIR ENVIRONMENT FOR A PERIOD COVERING THE 
    LOAN.

5.  Supplier's right to user the Loaner Products is non-transferable, and
    Supplier shall not encumber the Loaner Products in any manner.  Supplier 
    shall use the Loaner Products only at Supplier's principal office and 
    primarily for porting and testing purposed incident to this Agreement.

6.  All software in the Loaner Products shall be licensed from HP under HP's
    standard software license terms.

7.  Upon completion of the Loan Period, Supplier may purchase the Loaner
    Products for $ FAIR MARKET VALUE AS DETERMINED BY HP.

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

<PAGE>

                                    EXHIBIT B

                 K-Series Loaner Configuration for CableData, Inc.

<TABLE>
<CAPTION>

    QTY   PRODUCT/OPTION        DESCRIPTION
    ---   --------------        -----------
    <S>   <C>                   <C>
     1    A3181A                Model K400, one 100MHz PA7200 CPU, 128MB
     1    A2993A                Additional 100 MHz PA7200 CPU
     4    A3027A  OD1           128MB High Density ECC Memory Module
     1    A2992A  OD1           Memory Carrier (Increase capacity to 32 SIMM Slots)
     2    A3145A  ODZ           2GB disk Drive,Fast/Wide SCSI-2,Half-Height
     1    A3184A  ODS           CD-ROM Drive, 650MB,SCSI-2(Complementary)
     1    A3183A  ODZ           4-8GB DDS DAT Drive SCSI-2
     1    C1064GX ABA           700/96 System Console, Green Screen
     1    28696A  ODZ           20MB/Sec Fast/Wide SCSI-2 Interface Card
     1    J2092AZ ABA           16-Port RS-232 Direct Connect Mux (RJ45)
     1    A2440A  APS,ABA,OD1   HP-UX10.0,2-user license,Instant Ignition
     1    B3897A  AJG+AGM       HP-UX 10.0, CD-ROM Media
     1    B3921AA OBC           HP C/ANSI C Developer's Bundle License
     1    B3901AA APS,ODI,AAU   HP C/ANSI C Media & Doc on CD-ROM
     1    B3651DA               X Terminal Software & Documentation
     1                          Glance Plus (up to 1-year time bomb)
     1    C5264RZ               lx4GB F/W Disc
     1            002           800 Series Option
     2    C5266U                4GB upgrade/add on
     2            002           800 Series Option
     2            OS4           Factory Install
     1    A1897A                1.6 Meter Cabinet
     1            ABA           US Power

- ------------
     Note:
     Base system includes 802.3 LAN (Ethernet) with auto-sensing twisted pair 
     and AUI connect
</TABLE>

<PAGE>

                                    EXHIBIT B

                      E-Class Loaner Configuration for CableData

<TABLE>
<CAPTION>

    QTY   PRODUCT/OPTION        DESCRIPTION
    ---   --------------        -----------
    <S>   <C>                   <C>

     1    A2959AW               HP9000 E Class Server Package
     1    A3194AW               Model E55 Processor
     4    A3131A    ODZ         128MB Memory Module
     1    A2442A    ODU         MUX Personality Card For Base System I/O
     2    A3304A    OD1         2GB SE SCSI-2 Disk Drive
     1    A3184A    ODZ         650MB CD-ROM Drive
     1    A3183A    ODZ         4GB DDS DATA Drive with Data Compression
     1    C1064WX   ABA         System Console, White Screen, US Version
     1    28696A    ODZ         BP-PB FWD SCSI-2 Host Adapter
     1    A2943A    ODZ         Upgrade from 2 to 4 HP-PB slots in E-class server
     1    A2962AZ               Rackmount kit for E-class server
     1    A2440A    APS,ABA,0D1 HP-UX 2 User license & manuals
     1    B3897A    AJG         HP9000 Server HP-UX licenses and Media for all levels
     1    A1897A    021         1.6 Meter Standard 19" EIA rack
     1    A2997A    ODZ,017     1.8 kVA Rackmounted BP PowerThrust UPS
     1    A3196A                5 Meter Power Cord
     1    C526ORZ               Factory racked 5x2 FWD SCSI-2 Disk Storage System
     1    C5258R    002         2 GB FWD SCSI-2 Disk in rack enclosure
     1    B3921AA   OBE,OBC     HP-UX 10.0 Server Documentation

- -------------
Note:
Base system includes EtherTwist LAN and AU1 connector
</TABLE>

<PAGE>

                                    EXHIBIT C

1.  Performance Criteria:
    The same procedures and criteria will be used for the ported deliverables
    as for other Intelecable supported platforms.  CableData uses performance
    benchmarks as capacity and reliability guidelines for system performance. 
    Capacity involves transaction rates, and reliability relates to the
    availability of the Intelecable software without interruption.  The
    guidelines are used as a guide for determining whether or not analysis and
    corrective action are indicated.

2.  Test Procedures:
    CableData's automated performance test lab will be used for all feature and
    performance regression testing.

3.  Error Definitions:


<TABLE>
<CAPTION>

                           Problem Solution Objectives
- ---------------------------------------------------------------------------------------------
                                                                CABLEDATA DEFECT ISOLATION,
     SEVERITY LEVEL              DESCRIPTION                    CONFIRMATION AND FIX
<S>  <C>                         <C>                            <C> 
1.   System Down                 System Down,                   Immediate
                                 Cannot Do Business    

2.   High Impact, No             Business Functions Cannot      ASAP - Between
     Workaround                  Be Performed                   Maintenance Releases

3.   High Impact, Workaround     Heavily Impacted, Can Do       Next Maintenance Release
                                 Daily Business

4.   Low Impact, Workaround      Slightly Impacted, Can Do      Deferred; Future
                                 Daily Business                 Maintenance Release

5.   No Impact                   No Impact On Daily Business    Possible, Future Maintenance
                                                                Release
- ----------------------------------------------------------------------------------------------
</TABLE>


4. CableData procedures for remedying errors in the Intelecable product will
   be followed.


<PAGE>

                                    EXHIBIT D

                                ACCOUNT MANAGERS
                                ----------------

               Supplier                          Hewlett-Packard

Name         Mark R. Breunig          Name     Patricia C. Wilcox
Title        Product Manager          Title    Manager, Business Support Systems
Address      11020 Sun Center Drive   Address  19091 Pruneridge Ave.
             Rancho Cordova, CA 95670          Cupertino, CA 95014

Telephone Number  916-636-4709           Telephone Number  408-447-1319
Fax Number        916-636-5808           Fax Number        408-447-6452


<PAGE>

                                    EXHIBIT E

                                PAYMENT MILESTONES
                                ------------------

1. In consideration for Supplier's performance of the Agreement, HP shall pay
   Supplier the amounts specified below:

[*]

2.  Supplier shall repay to HP the sum of [*] in accordance with the following
    formula:

- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
Such payments shall be due within N/A after the end of each calendar quarter, 
and shall be sent to
                    -----------------------------------------------------------
- -------------------------------------------------------------------------------

3.  In the event Supplier fails to perform its obligations under Exhibit A of
    this Agreement by [*] AFTER THE HP HARDWARE/SOFTWARE IS DELIVERED AND
    OPERATIONAL, Supplier shall immediately refund to HP all sums paid by HP 
    pursuant to this Agreement.

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

<PAGE>
                                  AMENDMENT TO
                                PORTING AGREEMENT

WHEREAS, CABLEDATA, INC., a California corporation (hereinafter "Supplier"), and
HEWLETT-PACKARD COMPANY (hereinafter "HP") have entered into that Porting
Agreement (hereinafter called the "Agreement") dated of an even date herewith;
and

WHEREAS, Supplier and HP desire to modify the Agreement such that wherever
language contained in this Amendment conflicts with the terms of the Agreement,
the language contained in this Amendment shall control;

NOW, THEREFORE, the parties agree as follows:

1.   Paragraph 1.5 of the Agreement is deleted in its entirety, and the
     following is substituted therefor:

     1.5  Any versions, releases, modifications, updates, upgrades, error
          corrections, new features, or new functionalities developed by 
          Supplier for the Programs ("Enhancements") shall be made 
          commercially available by Supplier on the HP Products no later
          than [*] from the date by which each such Enhancement is
          commerically available on Supplier's development platform.

2.   Paragraph 1.7 of the Agreement is amended by adding the following language
     at the end thereof:

     ", provided these are made available to Supplier."

3.   The second sentence of Paragraph 2.1 of the Agreement is deleted in its
     entirety, and the following is substituted therefor:

[*]

4.   Paragraph 2.5 of the Agreement is deleted in its entirety, and the
     following is substituted therefor:

     2.5  Supplier shall provide HP with one (1) free copy of each Program and
          Enhancement, including all associated documentation.  Such copies 
          shall be for demonstration, benchmarking, support and training 
          purposes.  HP's use of such Program and Enhancement shall be subject 
          to Supplier's standard license terms.

5.   Paragraph 3.3 of the Agreement is deleted in its entirety, and the
following is substituted therefor:

     3.3  Supplier shall support each Program and Enhancement for the remaining
          support life of the Program or Enhancement following the date that 
          Supplier discontinues distributing the Program or Enhancement on 
          the HP Products.

6.   New Paragraphs 6.9 and 6.10 are added to the Agreement as follows:

     6.9  This Agreement shall be governed by the laws of the State of 
          California.

     6.10 The term of Supplier's obligations under Section 2 of this 
          Agreement shall be for 

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

<PAGE>


All other terms and conditions of the Agreement shall remain in full force and
effect unchanged.

IN WITNESS WHEREOF, the parties hereto have executed this Amendment as of the
31st day of January, 1996


HEWLETT-PACKARD COMPANY                  CABLEDATA, INC.

By:       /s/ Nancy Burgess               By:        /s/ Jerry Johnson
    -----------------------------------       --------------------------------- 

             Nancy Burgess                             Jerry Johnson
    -----------------------------------       --------------------------------- 
              (Print Name)                              (Print Name)

       Industry Marketing Manager                      Vice President
    -----------------------------------       --------------------------------- 
                (Title)                                    (Title)

           January 31, 1996                           January 30, 1996
    -----------------------------------       --------------------------------- 
                (Date)                                     (Date)


<PAGE>

                                                                   EXHIBIT 10.26

<PAGE>


                        ON/LINE OPERATING & LICENSE AGREEMENT

                                       between

                                U.S. COMPUTER SERVICES

                                    dba CABLEDATA

                               2969 Prospect Park Drive

                           Rancho Cordova, California 95670

                                         and

Customer  Continental Cablevision
         ---------------------------------------------------------------------

Principal Office Address The Pilot House, Lewis Wharf
                        ------------------------------------------------------

City           Boston             State    MA         Zip      02110
           ----------------------       -------------      -------------------

U.S. Computer Services (hereinafter called "USCS"), a California corporation
doing business as CableData, agrees to provide Customer and Customer agrees to
subscribe exclusively to the services and products offered through USCS'
proprietary DDP FINANCIALS AND ON/LINE APPLICATIONS SOFTWARE (hereinafter
collectively called "Software") and the constituent Software, products and
services (hereinafter individually called "Product" and collectively called
"Products") for all Customer Cable Systems listed in Attachment A, subject to
the following terms and conditions:

1.  TERM OF AGREEMENT

    1.1       The initial term of this Agreement shall be for a period of [*]
              commencing on the date of full execution of this Agreement. After
              the initial term, this Agreement shall be automatically renewed
              for one (1) year periods unless either party hereto provides to
              the other written notice of intent not to renew at least one
              hundred eighty (180) days prior to the expiration date of the
              initial term or succeeding terms, if any.

2.  LICENSE

    2.1  For each Software Product requested by Customer, USCS grants to
         Customer a non-exclusive, nontransferable license, without right of
         sublicense, to use, perform, or execute such Product or portions
         thereof solely for Customer's own use at the Computer Facilities or
         Remote Sites designated in Attachment A of this Agreement.  Customer
         may, at its option from time to time by giving USCS prior notice,
         request to add new Computer Facilities, Remote Sites, or Products and
         services; USCS may then add such new sites to Attachment A and such
         Products and services and the prices therefor to Attachment B.

    2.2  Any use of the Product at other than the designated installation
         address(es) set forth in Attachment A will require the extension of
         the licenses herein granted for each additional installation address.
         Such extension(s) shall be made by amendment to Attachment A upon
         written request by Customer and approval by USCS of the additional
         installation address(es), which approval shall not be unreasonably
         withheld.  If Customer temporarily is unable to use the Product at the
         designated Computer Facility or Remote Site because of conditions
         beyond Customer's control, the affected license may be temporarily
         extended, upon prior approval by USCS, to permit Customer to use the
         Product at another designated Computer Facility.

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


                                         -1-

<PAGE>

    2.3  The license granted herein for each Product specified in Attachment B
         shall be effective on the installation date of, or conversion date to,
         the Product and shall continue through the end of the term, including
         any renewal terms as set forth in Paragraph 1.1, subject to the
         provisions of Sections 12 and 19.

    2.4  THIS AGREEMENT COVERS USCS' APPLICATIONS SOFTWARE AND DOES NOT COVER
         COMPUTER OPERATING SYSTEM SOFTWARE.  NO WARRANTY, EXPRESS OR IMPLIED,
         INCLUDING, WITHOUT LIMITATION, WARRANTY OF MERCHANTABILITY OR FITNESS
         FOR A PARTICULAR PURPOSE, IS MADE WITH RESPECT TO TANDEM OR OTHER
         OPERATING SYSTEM SOFTWARE.

3.  PRE-CONVERSION TRAINING

    3.1  USCS will provide the standard initial training program for Customer's
         employees at a USCS regional service center.  The initial training is
         included in the Conversion Fee and will consist of the classes
         required by USCS.  Equipment and materials used in the instruction are
         provided by USCS.

    3.2  Customer is responsible for all transportation to and from the
         regional service center, lodging and food for Customer's employees
         that attend the USCS training.

    3.3  Customer agrees to send qualified employees who will be fulfilling
         System-related job roles to those classes designed for their job roles
         before the conversion, in accordance with the job roles and the
         required classes defined by USCS.  In the event the employee does not
         fulfill the requirements  of the class, Customer agrees to provide a
         replacement and said replacement will attend the required class(es)
         before conversion.

4.  CONVERSION TO THE SOFTWARE

    4.1  USCS will install the Software Products requested by Customer on
         Customer's equipment in consideration of Customer's payment of the
         relevant conversion fee and reasonable travel and expenses
         reimbursement.

    4.2  USCS will provide, at time of conversion, a standard on-site training
         program for Customer's employees at the designated Computer
         Facility(ies) as set forth in Attachment A. The on-site training is
         included in the Conversion Fee.  In the event Customer requests on-
         site training at Remote Sites, such additional training will be
         provided at then current prices.

    4.3  USCS will convert Customer's data and initialize data on the Software.
         In the event data is not in a defined computer format and available on
         magnetic tape, 9-track 800/1600 bpi, then an additional charge is
         applicable.  USCS' services to convert and initialize Customer's data
         shall include all reasonable actions necessary to make such data
         compatible with the Software and the Product, including reformatting
         of such data if needed.

    4.4  USCS will provide one complete set of documentation at no charge.
         Customer can purchase additional copies at then current prices.

5.  USCS' CUSTOMER SUPPORT FOR USCS APPLICATIONS SOFTWARE

    5.1  USCS will provide telephone Software support for Customer for the
         duration of this Agreement.

    5.2  Customer support telephone calls to a USCS regional service center
         will be handled immediately or returned within sixty (60) minutes by a
         qualified USCS employee.  Customer must provide qualified individuals
         in Customer's Cable System(s) who have attended USCS' relevant
         classes, with whom USCS will deal.  Customer will be required to
         maintain a level of expertise to properly utilize the Software during
         the term of this Agreement.

                                         -2-

<PAGE>

    5.3  Excluded from Software support under this Agreement are (a)
         operational procedures for loading and shutting down the computer
         system; (b) setting computer operating system command parameters; (c)
         nightly procedures for database backup and file maintenance, (d)
         defining whether any problems are hardware or Software-based; (e)
         database recovery necessitated by an operating system software or
         operational problem; (f) balancing file allocation and disk space
         management; (g) operational procedures to support lockbox, cutoff, and
         Transmit-X; and (h) conducting performance analysis of the computer
         system.  These operational support services are available at USCS'
         then current prices.

    5.4  The telephone Software support provided under this Agreement covers
         only USCS applications Software licensed hereunder and does not
         include support of any computer operating system software (such as
         Tandem's Guardian software).

6.  USE OF THE SOFTWARE BY CUSTOMER

    6.1  Customer will be responsible for determining the appropriate uses to be
         made of the Products and establishing the features through the setting
         of Product parameters.

    6.2  Customer will utilize the Software as set forth in the Software
         documentation.

    6.3  Customer is not authorized to make modifications to the Software.
         Should Customer make such modifications, USCS will not be responsible
         for support of any Software as modified, nor for the compatibility of
         such modified Software with any equipment, with the unmodified
         Software or with any future Software releases.

7.  ON-GOING TRAINING

    7.1  Customer can purchase additional instruction at then current prices
         for all classes taught at the regional service center.  Customer can
         also purchase customized on-site training at then current prices.
         Customer is responsible for all transportation to and from the
         regional service center, lodging and food for Customer's employees
         that attend the USCS training.

8.  CHANGES TO THE SOFTWARE BY USCS

    8.1  USCS reserves the right to make changes, updates and enhancements to
         the existing Software as determined by developments in the Cable TV
         industry.  USCS may modify its charges to Customer to reflect the new
         services, updates and enhancements and the cost thereof.  It is
         understood that Customer shall not, without its prior written
         approval, be obligated to convert to such modified Product if such
         conversion would substantially increase Customer's obligations under
         this Agreement.

    8.2  USCS may, during the term of this Agreement, add new Products at
         prices to be published at the time of introduction.  Customer may
         elect such new Products as set forth in Section 2.

    8.3  USCS is not responsible for the inability of any software or other
         product purchased or licensed from third parties to function because
         of changes to USCS Software.

    8.4  At Customer's request, custom modifications to the Software will be
         made by USCS at the discretion of USCS and at Customer's expense.
         Such custom modifications shall belong exclusively to USCS.  If such
         modification(s) increases USCS' processing costs, Customer agrees that
         the prices for the Products may be increased because of such
         modification(s).

    8.5  Customer agrees that USCS will have the right to levy charges for
         services resulting from Customer's modification of the Software or for
         Customer's failure to utilize current procedures.

    8.6  CUSTOMER AGREES THAT USCS WILL HAVE THE RIGHT TO LEVY A SOFTWARE
         SUPPORT SURCHARGE (ADDITIONAL CHARGE) IN THE EVENT CUSTOMER IS TWO OR
         MORE MAJOR SOFTWARE RELEASES BEHIND THE CURRENT SOFTWARE RELEASE.  As
         used herein, a "Major Software Release" means release by USCS to its
         customer

                                         -3-

<PAGE>

         base of a version of the Software which contains (i) a major revision
         in database structure or design; or (ii) modifications of more than 50
         application programs; or (iii) changes made pursuant to 100 or more
         SARs (Software Assistance Requests) or DCRs (Database Change
         Requests); or (iv) addition or modification of two or more major
         components or schemes (i.e. rate codes, collections).

9.  DATA PROCESSING, REPORTS AND STATEMENT PRODUCTION SERVICES

    9.1  WITHIN THIRTY (30) DAYS OF EXECUTION OF THIS AGREEMENT, CUSTOMER MUST
         PROVIDE TO USCS A CUTOFF SCHEDULE AGREEABLE TO USCS FOR THE NEXT
         SUCCEEDING TWELVE (12) MONTH PERIOD FOR EACH CUSTOMER CABLE SYSTEM
         UNDER THIS AGREEMENT, AND CUSTOMER MUST UPDATE SUCH SCHEDULE(S) EACH
         NOVEMBER FOR THE NEXT SUCCEEDING CALENDAR YEAR.

    9.2  Transmission of all data to and from USCS shall be via
         telecommunications (including, but not limited to Transmit-X) or
         shipment of tape(s) and shall be at Customer's expense.

    9.3  The normal turnaround time for a processing cycle of any file update
         at USCS' International Billing Services facility, defined as the
         elapsed time between USCS' complete receipt of usable data
         transmission, or tape(s), and the return transmission of processed
         data, disk pack(s) or tape(s), is an average of sixty (60) hours over
         twelve (12) consecutive processing cycles.

         Statement production will be completed within twenty-four (24) hours 
         of the successful completion of the cycle update and transmission of 
         processed data back to customer and the approval to proceed with
         statement production by the customer.

    9.4  In the event Customer requests special processing, USCS may, at its
         discretion, increase this turnaround time by an additional twenty-four
         (24) to forty-eight (48) hours.  In no event should turnaround time
         exceed one hundred eight (108) hours except in the case of force
         majeure or delays caused by Customer.

    9.5  Customer reports and Customer billing statements and other products
         shall be provided in accordance with options selected by Customer.

10. PRICE

    10.1 The Price Schedule for utilizing the Software and Products selected by
         Customer is set forth in Attachment B.  Such prices shall be subject
         to increase upon forty-five (45) days' prior notice, provided however
         that the percentage of such increase or increases shall not exceed the
         percentage increase in the Consumer Price Index for All Urban
         Consumers (CPI-U) published by the U.S. Department of Labor (a) from
         the date of last general price increase prior to the effective date of
         this Agreement (b) to the date of price increase under this Agreement.
         Prices for all USCS products and services ordered and used by Customer
         but not set forth in Attachment B shall be the prices in effect on the
         date of use of the product or service.

    10.2 In order to be eligible for Inclusive Bundled Price and Inclusive
         Package Bundled Price, the Cable System must have not less than 20,000
         Subscribers.

    10.3 The following definitions are applicable to, and incorporated in,
         Attachment B:

         a.   "Computer Facility" means a single Customer cable property
              location where the Processor(s) is located.
         b.   "Remote Site" means a Customer cable system(s) operating by
              telecommunications from Customer's or USCS' Computer Facility.
         c.   "Corp(s)" means Customer cable system(s) identified by a unique
              corp-city number as set forth in Attachment B.
         d.   "Subscribers" or "Subs" means the number of historical ledger
              records produced (including all active and inactive subscribers
              with a balance or a transaction.)
         e.   "Update" means the processing of Customer's DDP Financials master
              file for the purpose of updating some or all of the Subscriber
              records on that master file.

                                         -4-

<PAGE>

         f.   "Processor" means the central processing unit, memory and
              addressable peripherals on which the Software functions.
         g.   "Multiple System Operator" or "MSO" means a cable operator owning
              or managing not less than four (4) cable systems using USCS with
              an aggregate Subscriber count on USCS in excess of one hundred
              thousand (100,000).

    10.4 Printing and graphics, inserts, supplies and other materials and
         services not listed in Attachment B shall be available at then current
         USCS prices.  Said prices are subject to change without notice.
         Customer may purchase such forms, supplies, and materials from other
         vendors, provided materials which impact the statement production
         process (including inserts) or the Software meet USCS' reasonable
         specifications necessary to ensure proper operation.

    10.5 Customer agrees that USCS will have the right to charge in accordance
         with USCS' then current prices for special projects requested by
         Customer and performed for Customer by USCS that are outside the scope
         of day-to-day customer service.

11. TAXES

    11.1 Customer will pay, or reimburse, USCS for all taxes and charges
         imposed on Customer or USCS on any interest in or use of any service,
         Software, or tangible good provided hereunder, or upon this Agreement,
         excluding, however, all taxes on or measured by USCS' income.

12. PAYMENT TERMS

    12.1 USCS shall invoice Customer monthly for services and products, postage
         prepayment, taxes and other charges. The monthly charges in Attachment
         B for all software license fees will be billed one (1) month in
         advance.  Postage prepayment will be billed as set forth in Section
         13.  All other fees and charges for products and services, unless
         otherwise noted, shall be billed in arrears.

    12.2 Standard payment terms are net cash, without discount, due and payable
         within thirty (30) days from the date of the invoice.  In the event
         that Customer does not render full payment of all undisputed amounts
         within thirty (30) days of the date payable, USCS may, after notifying
         Customer, cease any and all services until such account is brought to
         a current status.

    12.3 If Customer fails to pay any charges when due and payable, Customer
         agrees that USCS will have the right to invoice and Customer will pay
         a late payment service charge of 1.5 percent per month, but not in
         excess of the lawful maximum, on the past due balance.

    12.4 In the event that Customer should dispute a particular charge,
         Customer will, within fifteen (15) days of the USCS invoice, notify
         USCS in writing of the disputed charge and the reason for the dispute.
         USCS will attempt to resolve such dispute as soon as possible.  In all
         events, Customer is obligated to pay all undisputed charges on each
         invoice when due.  Charges not disputed by Customer within three (3)
         months of invoice date shall be final and non-disputable.

13. POSTAGE

    13.1 Customer agrees to prepay Customer's postage for billing statements no
         later than one (1) week prior to Customer's cutoff date.  Customer
         shall remit to USCS an amount equal to the number of Customer's
         current month Subscribers multiplied by an average postage rate.  This
         amount will be adjusted to actual postage on the following month's
         invoice.  This amount will be indicated on the postage invoice mailed
         to Customer at least fifteen (15) days prior to the due date.  In the
         event Customer does not prepay postage, as set forth above, USCS
         reserves the right to hold Customer's billing statements until
         sufficient postage prepayment is received.

    13.2 In the event of an increase in U.S. postage rates, postage prepayment
         shall be increased by the amount of such postage rate increase.

                                         -5-

<PAGE>

14. NON-DISCLOSURE OBLIGATIONS

    14.1 USCS agrees that all information disclosed by Customer during
         performance of this Agreement shall be considered proprietary, to be
         held in confidence and used only in performance of this Agreement.  No
         information provided by Customer under this Agreement shall be
         duplicated or furnished to another party without prior written consent
         of Customer except as required by law.  USCS will exercise the same
         standard of care to protect Customer's proprietary data as is used to
         protect its own proprietary data from unauthorized disclosure.

    14.2 Customer understands the proprietary nature of the Software designed
         and developed solely by USCS.  Customer agrees to exercise similar
         care to prevent unauthorized disclosure of any information that could
         be injurious to the business operations and welfare of USCS and/or
         third parties, including Tandem.  Customer further acknowledges that
         the Software and Products of USCS are provided in confidence and are
         trade secrets of USCS and will be so protected by Customer.  Customer
         agrees to maintain the Products in confidence and not to disclose any
         portion of the Products to any third party, and to utilize its best
         efforts to protect the contents of the Products or any part thereof
         from unauthorized disclosure by its agents, employees or
         representatives.  Customer agrees to take appropriate action, by
         notice to its employees and all others who are permitted access to the
         Products, to satisfy its obligations under this Agreement.

15. TITLE

    15.1 Customer recognizes and agrees that, during the term of this Agreement
         and thereafter, title to, ownership of, and all proprietary and
         intellectual property rights in the Products licensed under this
         Agreement, and all copies and derivative works thereof, will at all
         times remain in USCS. Customer agrees to use the Products only as
         provided in this Agreement.  The existence of a  copyright notice
         shall not cause, or be construed as causing, a Product to be a
         published copyrighted work or to be in the public domain.  Customer
         agrees that it will not make or have made any more copies of the
         Products or any part(s) thereof than are necessary for the use
         hereunder by Customer and that it will cause such copies upon
         reproduction to have the same copyright or proprietary legends that
         appear on the Products or any part(s) thereof.  Customer recognizes
         that certain parts of the Products may have been copyrighted by USCS
         or by third parties.  Customer agrees that it will affix to any and
         all reproductions of those parts of the Products which are
         copyrighted, the form of copyright notice indicated by USCS and/or
         third parties.

16.LIMITATION OF REMEDY

    16.1 USCS agrees that it will maintain, in machine readable form, in off-
         site premises, a duplicate copy of Customer's master file as most 
         recently updated, to enable regeneration of the DDP Financials 
         master file data in the event of loss of such items due to machine 
         failure, conduct of USCS' employees, fire or other calamity at USCS' 
         International Billing Services facility. Customer agrees to maintain 
         duplicate backup disk packs and/or tapes as provided for in the 
         Software in the event of loss of such items due to the reasons stated
         above.

    16.2 USCS' liability for loss of any Software data or materials shall be
         limited to the replacement or regeneration of the lost items by the
         method or means deemed most suitable by USCS.

    16.3 Neither USCS nor Customer shall be considered in default due to any
         failure in performance of this Agreement, in accordance with its 
         terms, should such failure arise out of causes beyond their control and
         without their fault or negligence.

    16.4 In the event of an error or omission, whether human or mechanical, on
         the part of USCS or its employees, USCS may elect to reprocess the
         data at no extra cost to Customer to correct said error or omission. 
         USCS' liability to Customer for any losses or damages, direct or
         indirect, arising out of this Agreement shall not exceed the total
         amount billed or billable to Customer for the performance of the
         particular task which gave rise to the loss or damage.  USCS shall not
         be liable for any special or consequential damages in any event.

                                        - 6 -

<PAGE>

    16.5 EXCEPT AS PROVIDED IN THIS SECTION 16, NO WARRANTY, EXPRESS OR
         IMPLIED, INCLUDING, WITHOUT LIMITATION, WARRANTY OF MERCHANTABILITY OR
         FITNESS FOR A PARTICULAR PURPOSE, IS MADE WITH RESPECT TO THE PRODUCTS
         AND SERVICES PROVIDED HEREUNDER.

17. INSPECTION

    17.1 It is understood that Customer may inspect all work being performed
         under this Agreement to the extent practical at all reasonable times
         and places.  However, it is also understood that such inspections by
         Customer shall not be performed in any way that shall unduly delay the
         work being performed. Reasonable facilities and assistance shall be 
         provided for Customer's inspection if any inspection is made by
         Customer on the premises of USCS.  Such facilities and assistance shall
         be provided without extra charge.  However, should Customer perform
         inspection at a place other than the premises of USCS, such inspection
         shall be at the expense of Customer.

18. INFRINGEMENT

    18.1 USCS warrants that the Products and all components thereof, and their
         use in the manner contemplated by this Agreement, do not and will not
         infringe any United States patent or copyright.

    18.2 If any action is instituted against Customer based upon a claim that
         the Products or any component or use thereof infringe a United States
         patent or copyright, USCS shall, for and on behalf of Customer, defend
         and indemnify such action at USCS' expense, provided Customer promptly
         notifies USCS in writing of said action and USCS has sole control of
         the defense and any settlement negotiations.

    18.3 USCS shall have no liability to Customer for any infringement action
         or claim which is based upon or arises out of:
         a.   Any modification of the Products by Customer without the express
              written permission of USCS; or
         b.   Any use of the Products in combination with any other system,
              equipment or software which is not furnished by USCS or approved
              by USCS in writing.

19. TERMINATION

    19.1 Notwithstanding any other provision herein, USCS will have the right
         to terminate this Agreement or all or any licenses granted herein if
         Customer fails to comply with any of its material obligations under
         this Agreement.  Should USCS elect to exercise this right to terminate
         for nonperformance, it must be done in writing specifically setting
         forth those items of nonperformance.  Customer will then have fifteen
         (15) days from receipt of notification to remedy the items of
         nonperformance.  Should Customer fail to correct these items of
         nonperformance, then USCS shall have the right to enter upon
         Customer's premises to repossess and remove any USCS-owned or licensed
         Products.  In addition, USCS' termination of this Agreement or such
         taking of possession shall be without prejudice to any other remedies
         USCS may have, including, without limitation, all remedies with
         respect to the unperformed balance of this Agreement; provided,
         however, that if Customer has not made payment of the fees or charges
         due hereunder and such nonpayment continues after thirty (30) days'
         prior written notice by USCS, USCS may then terminate this Agreement
         or any license granted herein.

    19.2 Upon expiration of the term (including any extensions thereof) of this
         Agreement or upon the termination of this Agreement or of any license
         granted hereunder for any reason, all rights of Customer to use the
         Products will cease and Customer will immediately (i) grant to USCS
         access to its business premises and the Products and allow USCS to
         remove the Products (ii) purge all copies of all Products from all
         computer processors or storage media on which Customer has installed
         or permitted others to install such Products, and (iii) when requested
         by USCS, certify to USCS in writing, signed by an officer of Customer,
         that all copies of the Products have been returned to USCS or
         destroyed and that no copy or any Product remains in Customer's
         possession or under its control.

                                        - 7 -

<PAGE>

    19.3 USCS will, within ten (10)days after termination of this Agreement,
         return Customer's most recent fixed master(s), provided Customer has
         paid in full the fee for the fixed master(s) and all outstanding
         monies owed.  In the event there are outstanding balances due, USCS
         may withhold master file data until said balances are paid in full.

    19.4 Any termination pursuant to this Section 19 shall be in writing to the
         address of the other party as indicated on the first page of this
         Agreement or to such other address as the other party may, by prior
         written notice, have specified.

20. GENERAL

    20.1 The parties agree that in the event it is necessary to employ attorneys
         to enforce the terms of this Agreement, the prevailing party in any
         lawsuit shall be entitled to an award of reasonable attorneys' fees and
         court costs.

    20.2 This Agreement may not be assigned without prior written mutual
         consent of Customer and USCS.

    20.3 This Agreement may be amended only by an instrument in writing,
         executed by Customer and USCS.

    20.4 This Agreement will be governed in all respects by the laws of the
         State of California.

    20.5 This Agreement and Attachments represent the entire agreement between
         the parties and supersede and replace all prior oral and written
         proposals, communications and agreements with regard to the subject
         matter hereof between Customer and USCS.

    20.6 SECTION 14 (Nondisclosure) and SECTION 13 (Title), and Paragraph 16.4
         (Limitation of Remedies) shall survive the termination of this
         Agreement.

IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of the
__________ day of ____________, 19____.

                                            U.S. Computer Services
    CONTINENTAL CABLEVISION                 dba CableData
    ------------------------------
         (Customer Name)

By: /s/  J.T. Delorme                       By: /s/  Arthur O. Hawkins
- -------------------------------------       --------------------------------

         J.T. Delorme                                Arthur O. Hawkins
- -------------------------------------       ---------------------------------
         (typed name)                                 (typed name)

              EVP
- -------------------------------------       ----------------------------------
         (title-must be an officer)              (title-must be an officer)

         11/22/93
- -------------------------------------       ----------------------------------
              (date)                                       (date)

                                        - 8 -

<PAGE>

                                      AMENDMENT
                                          TO
                           OPERATING AND LICENSE AGREEMENT


WHEREAS, U.S. COMPUTER SERVICES, a California corporation doing business as
CableData (hereinafter "USCS"), and CONTINENTAL CABLEVISION (hereinafter
"Continental") have entered into that OPERATING AND LICENSE AGREEMENT
(hereinafter called the "Agreement") of an even date herewith; and

WHEREAS, USCS and Continental desire to modify the Agreement such that wherever
language contained in this Amendment conflicts with the terms of the Agreement,
the language contained in this Amendment shall control;

NOW, THEREFORE, the parties agree as follows:

1.  TERM OF AGREEMENT:  Paragraph 1.1 of the Agreement is deleted in its
    entirety and the following is replaced therefor:

    1.1  The initial term of this Agreement shall commence eighteen (18) weeks
         after the date on which this Agreement is signed by both parties, and
         shall extend until the expiration date of [*].  Notwithstanding the
         foregoing, Continental may, upon written notice to USCS, begin to
         deconvert its systems from USCS' DDP/SQL product to another vendor's
         product as early as ninety (90) days prior to the expiration date of
         the initial term of this Agreement and may continue such deconversion
         for a period of up to ninety (90) days after the expiration date of
         the initial term of this Agreement.  Upon deconversion, Continental
         will no longer be required to pay USCS for use of its software.  This
         Agreement may be extended beyond [*] as set forth in Paragraph 10.7
         below.

    1.2  Continental may convert Continental's St. Paul, Minnesota system from
         another vendor to USCS' DDP/SQL products in July 1994 upon the
         termination of the current contract with the vendor and may add said
         system to Attachment A for the then remaining term of the Agreement.

2.  REPLACEMENT OF PRIOR AGREEMENT:  Upon commencement of this Agreement, the
    Master Agreement--On/Line Exclusive System Operating and License Agreement
    between USCS and Continental dated June 29, 1989 shall be deleted in its
    entirety and replaced with this Agreement.

3.  CONVERSION/MIGRATION PLAN:  Paragraphs 4.5 and 4.6 are added to the
    Agreement as follows:

    4.5  Continental has agreed to migrate its Cable Systems listed in
         Attachment A from USCS' DDP/TBOL product to USCS' DDP/SQL product;
         Continental and USCS will mutually agree on a pre-conversion training
         and migration schedule.  Continental recognizes that migration cannot
         take place until telephone lines are installed at its Cable Systems,
         and that installation of telephone lines may take up to forty-five
         (45) days.  No fees will be charged to Continental for conversion
         pursuant to Paragraph 1.2 above or migration pursuant to this
         Paragraph 4.5.


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


                                         -1-


<PAGE>



    4.6  The roles and responsibilities of each party in connection with
         migrations are set forth in Appendix 4 to this Agreement, which
         appendix is incorporated herein by this reference.

4.  QUARTERLY SENIOR MANAGEMENT MEETINGS:   USCS agrees that its senior
    management will meet with Customer on a quarterly or more often basis
    throughout the term of this Agreement.


5.  ON-GOING TRAINING:  Paragraph 7.1 of the Agreement is deleted in its
    entirety, and the following is substituted therefor:

    7.1  USCS shall provide Continental with [*] days of training at each of
         Continental's three data centers, or at a USCS regional service center
         on a space-available basis, during each twelve (12) months of this
         Agreement.  Continental may, subject to space availability at a USCS
         regional service center, choose the location of such training and may
         aggregate and allocate the training as it chooses for a total of [*]
         days in each twelve (12) month period.  USCS will bear all costs of
         such training at Continental's data centers, including transportation,
         lodging and food expenses for USCS personnel; Continental will be
         responsible for transportation, lodging and food for its personnel
         attending training at a USCS regional service center.  In addition to
         such training, USCS will provide Continental with one copy per data
         center of each self-directed learning and, when available, each
         computer-based training module requested by Continental.  Continental
         can purchase additional instruction at then current prices for all
         classes taught at the regional service center.  Continental can also
         purchase additional customized on-site training at then current
         prices.  Continental is responsible for all transportation to and from
         the regional service center, lodging and food for Continental's
         employees that attend the USCS training.


6.  CHANGES TO THE SOFTWARE BY USCS:   Paragraph 8.1 of the Agreement is
    amended by adding the following language at the end thereof: 

           [*]


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


                                         -2-


<PAGE>

    Paragraph 8.3 of the Agreement is deleted in its entirety, and the following
    is substituted therefor:

    8.3 USCS is not responsible for the inability of any software or other
        product purchased or licensed from third parties to function because of
        changes to USCS Software.  USCS will, however, ensure that third-party
        software for which USCS has developed an interface will continue to work
        with future versions of the DDP/SQL product provided that (a)
        Continental has informed USCS in writing of its intent to use the third-
        party product; (b) USCS has approved the specifications of the third-
        party product; and (c) there have been no changes to the third-party
        product.

7.  SOFTWARE SUPPORT SURCHARGE:  The first sentence of Paragraph 8.6 of the
    Agreement is deleted in its entirety, and the following language is
    substituted therefor:

         "During the initial term of this Agreement, there will be no
         additional charge for software support in the event Continental is two
         or more major software releases behind the current software release. 
         THEREAFTER, CONTINENTAL AGREES THAT USCS WILL HAVE THE RIGHT TO LEVY A
         SOFTWARE SUPPORT SURCHARGE (ADDITIONAL CHARGE) IN THE EVENT
         CONTINENTAL IS TWO OR MORE MAJOR SOFTWARE RELEASES BEHIND THE CURRENT
         SOFTWARE RELEASE."

8.  FUNCTIONALITIES; PROGRAMMING "CREDITS": Paragraphs 8.7, 8.8, 8.9 and 8.10
    are added to the Agreement as follows:

    8.7  Except for those items marked "third party" and "separate FSN
         product," USCS commits to developing and delivering the DDP/SQL
         software functionalities set forth in Appendix 1 in accordance with
         the schedules set forth therein, subject to the following conditions:

         (a)  For those functionalities that USCS is to develop exclusively or
              primarily for Continental ("Custom Programs"), such delivery is
              contingent on the parties mutually agreeing to contents in a
              timely manner.  Mutual agreement must be in writing signed by
              both parties, specifically describing the contents of the
              functionality.  Both parties agree to take all reasonable steps
              necessary to ensure timely agreement on contents.  USCS further
              agrees that if, in its opinion, a scheduled delivery date will be
              missed because of lack of agreement on contents, it will promptly
              notify Continental of such possibility.

         (b)  For those functionalities that USCS is to deliver to Continental
              and to other USCS customers as part of USCS' general software
              development process ("Core Programs"), the provisions of this
              Paragraph 8.7 pertaining to mutual agreement shall not apply.

                                         -3-

<PAGE>

         Delivery dates in Appendix 1 refer to beta first site test.  USCS will
         provide Continental with at least fifteen (15) days' notice of its
         intention to deliver each software functionality.  Promptly after the
         delivery of each software functionality, Continental shall test such
         functionality.  Within fifteen (15) days after such delivery,
         Continental shall notify USCS in writing, specifically identifying the
         basis of nonacceptance, if, in Continental's sole reasonable
         discretion, a Custom Program functionality does not perform in
         accordance with the contents mutually agreed to by Continental and
         USCS.  In addition to such written notification, Continental shall, no
         later than five (5) days after the notification date, return the
         Custom Program to USCS.  Failure to so notify USCS within such period
         or to return the program to USCS shall be deemed acceptance of the
         software functionality in question.

         In the event Continental notifies USCS that a Custom Program is not
         acceptable, such software shall not be deemed delivered or available
         for purposes of this Paragraph 8.7 and Appendix 1 and USCS shall have
         thirty (30) days to continue to develop such functionality.  If USCS
         fails to deliver a Core Program on the originally scheduled delivery
         date or a Custom Program within thirty (30) days after notification of
         unacceptability then Continental's sole and exclusive remedies shall
         be as set forth in Paragraph 8.10 below.

    8.8  Continental understands that certain functionalities in Appendix 1
         will require additional hardware acquisition by Continental and that
         additional charges may be applicable for those items marked "custom
         module" and for acceleration of delivery dates where noted.  USCS will
         provide Continental with its best estimate of the costs of any
         additional hardware required to support specific functionalities or
         combinations of functionalities upon Continental's initial request for
         those functionalities, provided that the parties have reached
         agreement on specifications.  Such estimate, as well as any hardware
         estimates included in Appendix 1, is intended merely to assist
         Continental with its own internal planning and may be relied on only
         for such purpose.  All estimates are subject to change and will not be
         binding on the parties.  Upon disclosure of USCS' estimate,
         Continental may elect to withdraw its request or to modify it so that
         it better satisfies Continental's objectives.  The additional hardware
         requirements and the parties' responsibilities in connection therewith
         are further detailed below:

         (a)  For those functionalities identified in Class A of Appendix 1, no
              additional hardware will be required;

         (b)  For those functionalities identified in Class B of Appendix 1,
              some additional hardware may be required, depending on
              Continental's actual use of the software.  In the event
              additional hardware is required, the parties will share equally
              USCS' purchase costs of such additional hardware;

         (c)  For those functionalities identified in Class C of Appendix 1,
              significant additional hardware may be required.  The selection,
              acquisition, installation and all associated costs of such
              additional hardware will be the sole responsibility of
              Continental.

                                         -4-

<PAGE>

    8.9   [*]

    8.10  [*]

9.  MERGE PROGRAM: New Paragraph 8.11 is added to the Agreement as follows:

    8.11  USCS will use its best efforts to have a DDP/SQL merge program ready
          for beta testing in January of 1994.  Corp merges may be performed
          during the migration process; however, merging Corps will be required
          to use paper backlog, and the expected additional backlog time will
          be two to three days.  A normalization program will be available when
          the merge program is ready for beta testing.

10. Paragraph 9.3 of the Agreement is deleted in its entirety, and the
    following is substituted therefor:

    9.3   Over twelve (12) consecutive processing cycles, the normal turnaround
          time for a processing cycle of any file update at USCS' International
          Billing Services facility, defined as the elapsed time between USCS'
          complete receipt of usable data transmission, or tape(s), and the
          return transmission of processed data, disk pack(s) or tape(s), is a
          pre-Hold average of forty-eight (48) hours and the normal turnaround
          time for statement mailing, defined as the elapsed time between USCS'
          complete receipt of usable data transmission, or tape(s), and the
          entry of the USPS tray containing the individual statement into the
          U.S. Postal system, is a pre-Hold average of seventy-two (72) hours.
          Except in the case of causes beyond the reasonable control of USCS,
          in the event either average is not maintained over any twelve (12)
          consecutive processing cycles, Continental may deliver written notice
          of nonperformance to USCS; whereupon USCS will have sixty (60) days
          to cure the problem.  If the problem is not cured within that time,
          Continental may give USCS thirty (30) days' written notice of intent
          to terminate.

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                       - 5 -

<PAGE>

11. PRICE:  Paragraph 10.1 of the Agreement is deleted in its entirety, and the
    following is substituted therefor:

    10.1  The Price Schedule for utilizing the Software and Products selected
          by Continental is set forth in Attachment B.  Such prices shall not
          be subject to increase during the initial [*] of this Agreement.
          Thereafter, such prices shall be subject, in addition to any price
          increase that may be applicable at such time, to a percentage
          increase upon forty-five (45) days' prior notice not to exceed the
          percentage increase in the Consumer Price Index for All Urban
          Consumers (CPI-U) published by the U.S. Department of Labor (a) from
          the date of last general price increase prior to the effective date
          of this Agreement (b) to the date of price increase under this
          Agreement.  Prices for all USCS products and services ordered and
          used by Continental but not set forth in Attachment B shall be the
          prices in effect on the date of use of the product or service.
          Notwithstanding the foregoing, USCS will provide Continental with
          Esprit SQL prom upgrades at no additional charge for the equipment
          or its installation.

12. MERGES AND SPLITS: New Paragraph 10.6 is added to the Agreement as follows:

    [*]

13. EXTENSION BEYOND INITIAL TERM: New Paragraph 10.7 is added to the Agreement
    as follows:

    10.7  Following the initial twenty-four (24) month term of this Agreement,
          Continental may elect to extend the Agreement for an additional
          period of twelve (12), twenty-four (24) or thirty-six (36) months.
          Such extension is contingent on a corresponding extension of the term
          of the lease agreement between Continental and U.S. Computer Systems
          Leasing, if applicable.  Upon Continental's election of an extension
          term, Continental's DDP/SQL Exclusive Bundle price for software
          processing will be increased, in addition to any applicable CPI-U
          increase, as follows: (a) twelve (12) month extension - [*] per
          Subscriber; (b) twenty-four (24) month extension - [*] per
          Subscriber; (c) thirty-six (36) month extension - [*] per Subscriber.
          Prices for Products and Services not included in the Bundle will be
          USCS' then-current standard prices.

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


                                             - 6 -
<PAGE>


14. PAYMENT TERMS: Paragraph 12.3 of the Agreement is deleted in its entirety,
    and the following is substituted therefor:

    12.3  If Continental fails to pay any charges when due and payable,
          Continental agrees that USCS will have the right to invoice and
          Continental will pay a late payment service charge of [*] per month,
          but not in excess of the lawful maximum, on the past due balance.

15. USCS' LIABILITY:  Paragraph 16.2 is amended by adding the following
    language at the end thereof:

          "In any event, Continental shall not be required to pay for any work
          or service not actually received, whatever the reason for
          nonreceipt."

16. STANDARDS OF WORK: New Paragraph 16.6 is added to the Agreement as follows:

    16.6  USCS warrants that the performance of work and services provided to
          Continental under this Agreement shall be in conformance with the
          requirements of this Agreement and with high industry standards.

17. TERMINATION:  The third sentence of Paragraph 19.1 of the Agreement is
    deleted in its entirety, and the following is substituted therefor:

          "Continental will then have thirty (30) days from receipt of
          notification to remedy the items of nonperformance."

18. TERMINATION BY CONTINENTAL FOR BREACH; CO-OPERATION IN CONVERSION TO
    ANOTHER VENDOR AFTER TERMINATION:  The following is added to the Agreement
    as Paragraphs 19.5, 19.6 and 19.7:

    19.5  Except as otherwise provided in this Agreement, Continental will have
          the right to terminate this Agreement if USCS fails to comply with
          any of its material obligations under this Agreement.  Should
          Continental elect to exercise this right to terminate for
          nonperformance, it must be done in writing specifically setting forth
          those items of nonperformance.  USCS will then have thirty (30) days
          (sixty (60) days in the event of a performance deficiency pursuant to
          Section 21 hereof) from receipt of notification to remedy the items
          of nonperformance.  Should USCS fail to correct these items of
          nonperformance, then Continental shall have the right to terminate
          this Agreement.  In addition, Continental's termination of this
          Agreement shall be without prejudice to any other remedies Continental
          may have under this Agreement.

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


                                        - 7 -
<PAGE>

    19.6  In the event Continental terminates this Agreement for breach as set
          forth in Paragraph 19.5 or upon the natural termination of this
          Agreement at the end of the term set forth in Paragraph 1.1, USCS
          agrees to fully cooperate in good faith with Continental and
          Continental's new vendor with regard to Continental's conversion to
          the new vendor for a period of up to ninety (90) days following such
          termination.  Continental understands that Continental will be
          responsible for paying for Fixed Masters, at a cost of [*] per Fixed
          Master for single Corps and [*] per Fixed Master for multiple Corps
          where the Fixed Masters are being sent to the same vendor, and that
          any use of USCS software or billing services by Continental during
          the ninety (90) day period will be subject to the terms and
          conditions of this Agreement, including pricing.

    19.7  USCS agrees to deposit and maintain in the possession of Capitol Bank
          Sacramento as escrow agent (or other mutually agreed-upon qualified
          escrow agent in Sacramento, California) a copy of all versions of
          USCS software currently used by the Continental (including source
          code, compilers, interpreters, utilities, documentation, operating
          system code) necessary for Continental to assume maintenance of USCS
          Systems and Programs.  In the event that USCS is in default as set
          forth in Paragraph 19.5, Continental shall be allowed to obtain these
          materials to continue operating the USCS System and Program until the
          later of (1) the end of the term of the Agreement or any extensions
          thereto or (2) for twelve (12) months.  Continental agrees that in
          the event it obtains these materials from the escrow agent, it shall
          pay USCS for possession and use of the materials at the times and
          in the amounts provided in this Agreement, and the use of the
          materials shall be further governed by Sections 2 (License), 14 (Non-
          Disclosure Obligations), 15 (Title), 16 (Limitation of Remedy), and 
          18 (Infringement) of this Agreement.

19. PERFORMANCE STANDARDS: New Section 21 is added to the Agreement as follows:

    21.  EXCLUSIVE SYSTEM PERFORMANCE STANDARDS

          21.1  In conjunction with Continental's use of the Exclusive On/Line
                system, USCS will commit to performance criteria set forth
                below, provided Continental maintains all related system
                components, provides necessary staff, and adheres to Operating
                Limitations set forth in Appendix 2 and Hardware Configuration
                Criteria set forth in Appendix 3.

          21.2  Terminal response time for a new customer install processed 
                will be [*] cursor movement will be [*] provided 
                Continental adheres to local system maintenance criteria 
                determined by USCS and further provided that Continental is 
                not running any of the batch jobs listed in Appendix 2, does 
                not run non-USCS applications and does not perform any ad 
                hoc queries during the relevant measurement period. Response 
                time and cursor movement will be measured using a 
                USCS-supplied measurement tool, or such other measurement 
                tools as USCS determines to be satisfactory, on a PC (at 
                least a 486) at Continental's data center.


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


                                         - 8 -

<PAGE>

          21.3 [*]

          21.4 The above performance standards are based upon the following
               assumptions:

               a.   Continental's Subscriber base will not have grown
                    appreciably as of the effective date of the
                    Agreement and will grow only moderately (no more than
                    5% Subscriber growth/no more than 10% PPV growth per
                    data center) over the remaining term of the Agreement;

               b.   Continental complies in all material respects with the
                    limitations set forth in Appendix 2 and the equipment
                    configurations set forth in Appendix 3;

               c.   Continental adheres to the estimations of future usage
                    provided to USCS, upon which the Hardware Configuration
                    Criteria in Appendix 3 are based; and

               d.   Continental will provide USCS with raw data on a semi-
                    annual basis for review with Continental and for
                    determination of adherence to the above criteria.

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                               - 9 -
<PAGE>

               The standards set forth above do not take into account
               currently unreleased USCS software, including versions of
               DDP/SQL beyond Release 2.9, third-party software,
               acquisitions by Continental of additional systems, or
               abnormal Subscriber growth (beyond 5% Subscriber growth/10%
               PPV growth per data center).  Should Continental desire to
               move onto a currently unreleased version of USCS software,
               USCS will share with Continental any projected changes in
               these performance standards prior to such transition. If 
               additional hardware is required to enable Continental to 
               realize the performance standards set forth above given the
               criteria set forth in this Section 21 and allowing for
               Subscriber growth up to 5% and not more than 3 million
               Subscribers, then, upon request from Continental, [*]. For 
               purposes of this Section 21, Subscriber and PPV growth
               measurements will be based on figures in effect on the
               execution date of this Agreement.

          21.5 In the event that Continental's growth exceeds 5% Subscriber
               base/10% for its PPV, as set forth in Paragraph 21.4 (a),
               and its Subscriber base is less than 3 million Subscribers,
               then USCS agrees to sell to Continental, at [*] the equipment
               necessary to continue to meet the response time obligations
               set forth in Paragraph 21.1.

          21.6 USCS will use its best efforts to assist Continental's
               efforts through third parties to develop an off-line
               reporting system.  "Best efforts" means that USCS will
               cooperate with Continental's systems integrator to the best
               of USCS' ability, including making available USCS personnel
               in Sacramento to assist with development of the off-line
               system.  If necessary and agreed to by the parties, USCS
               will be reimbursed by Continental or its integrator for
               reasonable travel and lodging expenses for USCS personnel
               required to travel to one of Continental's sites in
               connection with development of the off-line system.  It is
               Continental's desire that implementation of the off-line
               system be accomplished prior to migration of Continental's
               Cable Systems; however, in no way will development of an
               off-line system delay the effective date of this Agreement
               as set forth in Paragraph 1.1. [*]

20.  New Section 22 is added to the Agreement as follows:

     22.  DISPUTE RESOLUTION

          22.1 In the event of any disagreement, controversy or dispute
               regarding performance under or interpretation of this
               Agreement, the parties agree to attempt to reach a
               negotiated resolution.  If a dispute remains unresolved for
               a period of thirty (30) days after one party has provided
               written notice of such dispute to the other, then each party
               shall designate an officer to meet to endeavor to resolve
               the dispute.  Arbitration in accordance with this section
               may not be commenced by either party until such officers
               determine in good faith that a negotiated resolution is
               unlikely, provided, however, that if one or both parties
               refuse to meet within ninety (90) days of the original
               written notice of the dispute set forth above, then
               arbitration may be instituted by either party.

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


                              -10-

<PAGE>

          22.2 In the event that a negotiated resolution is not reached,
               the disagreement, controversy or dispute shall be settled by
               binding arbitration in accordance with the commercial
               arbitration rules of the American Arbitration Association
               and judgment upon the award rendered by the arbitrators may
               be entered in any court having jurisdiction thereof.  The
               arbitration shall be conducted in Sacramento, California by
               three arbitrators.  One arbitrator shall be selected by 
               Continental, one arbitrator shall be selected by USCS
               and the third arbitrator shall be selected by the American
               Arbitration Association and shall be subject to approval by
               both Continental and USCS.

21.  CUSTOMER SERVICE SUPPORT:  New Section 23 is added to the
     Agreement as follows:

23.  QUALIFICATIONS FOR DISCOUNT INCLUDED IN ATTACHMENT B BUNDLED
     PRICE FOR CUSTOMER SUPPORT

          23.1 The DDP/SQL Exclusive Bundle pricing in Attachment B
               includes [*] per Subscriber per month discount. This
               [*] per Subscriber per month discount shall be in effect
               for each Continental Cable System only so long as each of
               Continental's divisions has, upon written notification to USCS,
               agreed to provide customer service support to each of
               Continental's Cable System offices within the division, so
               that USCS will then support Continental only through
               Continental's division data processing staff.

          23.2 All of Continental's existing Cable Systems are eligible for
               the customer service support program.  In order for a
               division to qualify as "providing customer service support,"
               it must meet the following criteria:

               a.   Maintain at least three (3) people on its software
                    support staff who have successfully completed relevant
                    USCS training.  USCS agrees to provide the additional
                    training, at no charge, except for travel related
                    expenses, to the division.

               b.   Provide front-line telephone customer service support
                    to all Cable System offices and remote sites on a
                    twenty-four (24) hour basis; and

               c.   Review all requested DDP/F Type 30 changes from the
                    individual systems for completeness and accuracy prior
                    to forwarding the completed paperwork to USCS for
                    processing; and

               d.   Complete all Rate Increase/Prorate Run projects for the
                    individual systems by preparing a letter to USCS
                    defining the proposed project, filling out and
                    submitting to USCS all of the necessary paperwork for
                    Type 30 changes, message selects, and/or insert plans.
                    Make all changes to the DDP/SQL Director file at the 
                    appropriate time, run the program(s), review the results
                    on DDP/SQL and send the files to
                    DDP/F at the time of cutoff.  Review, complete USCS-
                    provided checklist and sign off on the DDP/F Reports
                    prior to releasing the bills and running the DDP/SQL
                    update program; and


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                              -11-

<PAGE>

               e.   Review all requests for message selects, alters, or
                    other special DDP/F projects from the individual
                    systems.  Prepare a letter to USCS defining the project
                    and include paperwork for all required changes on
                    DDP/F.  If DDP/SQL is involved, make any necessary
                    changes to the Director file parameters, run the
                    appropriate program(s), review the results, and forward
                    the files to DDP/F at the time of cutoff; and

               f.   Forward all requests for inserts or special statements
                    to USCS Insert Control for handling; and


               g.   Handle customer service support conversion as well as
                    splits and merges for all Software functions including
                    addressability for all systems with USCS assisting in
                    problem solving.  USCS will assume responsibility for
                    any and all problems requiring use of the Dump
                    Modification or Move Group programs except for those
                    specific problems for which USCS has given Continental
                    written permission to fix.  Continental will perform
                    file diagnostics, history purges, and customer purges
                    on a regular basis; and

               h.   The Continental division will perform all system 
                    maintenance and database management functions, including 
                    proper database back-up procedures, disk free space 
                    maintenance, SQL table partitioning, CPU balancing, and 
                    port configurations. Perform disk defrags, file purges 
                    and table reorganizations regularly.

               i.   Continental also agrees that, should a division fail to
                    comply with all of the above requirements, and such
                    failure requires USCS to provide support for repair of
                    database discrepancies, Continental shall pay [*] per man
                    hour as well as any additional expenses which may be
                    incurred.  USCS shall do all database repair.

          23.3 USCS agrees to continually review each division's ability to
               qualify for the discount described above and reserves the
               right to discontinue the discount of [*] if three (3) violations
               to the above terms and conditions occur in one (1) month or if
               there are any violations in three (3) consecutive months to
               any of the above terms and conditions set forth in Paragraph
               23.2 of this Agreement.  The discount may be reinstated
               after one (1) month with no violations.  In the event a
               division ceases to qualify as providing customer service
               support, then the DDP/SQL Exclusive Bundle shall increase by [*]
               per Subscriber per month for those Continental Cable Systems
               that no longer are eligible for the discount as set forth in
               Paragraph 23.1.


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


                              -12-

<PAGE>

22.  The following is added to the Agreement as Paragraph 24.1:

     [*]

23.  The following Appendices are a part of this Amendment:

     Appendix 1:  Function Matrix

     Appendix 2:  Operating Limitations for Performance Standards

     Appendix 3:  Hardware Configuration Requirements for
                  Performance Standards

     Appendix 4:  Migration Roles and Responsibilities; Key
                  Personnel

All other terms and conditions of the Agreement shall remain in
full force and effect unchanged.

IN WITNESS WHEREOF, the parties hereto have executed this
Amendment as of the _____ day of October, 1993.

CONTINENTAL CABLEVISION            U.S. COMPUTER SERVICES

By:  /s/ Jeffrey T. Delorme        By:  /s/ Arthur O. Hawkins
     ----------------------             ------------------------

 Jeffrey T. Delorme            
- ---------------------------             ------------------------
       (Print Name)                        (Print Name)

 Executive Vice President           
- ---------------------------             ------------------------
         (Title)                              (Title)

 December 17, 1993
- ---------------------------             ------------------------
           (Date)                               (Date)

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


                              -13-

<PAGE>

             ON/LINE OPERATING & LICENSE AGREEMENT

                          ATTACHMENT A

         CUSTOMER'S COMPUTER FACILITIES AND REMOTE SITES


PRIMARY SITE
- ------------
Corp Number              250-32
                         ------
Installation Address     3443 DEER PARK DRIVE
                         --------------------
City      STOCKTON       State     CA        County    Zip  95219
          --------                 --                       -----

REMOTE SITE
- -----------
Corp Number              222-35
                         ------
Installation Address     550 N. CONTINENTAL BOULEVARD
                         ----------------------------
City      EL SEGUNDO     State     CA        County    Zip  90245
          ----------               --                       -----

REMOTE SITE
- -----------
Corp Number              222-19
                         ------
Installation Address     2808 METROPOLITAN PLACE
                         -----------------------
City      POMONA         State     CA        County    Zip  91767
          ------                   --                       -----

REMOTE SITE
- -----------
Corp Number              222-20
                         -------------------------
Installation Address     ONE CABLE PLACE
                         ---------------
City      INGLEWOOD      State     CA        County    Zip  90302
          ---------                --                       -----
                              

                               Page 1

<PAGE>

REMOTE SITE
- -----------
Corp Number              222-21
                         ------
Installation Address     20930 E. BONITA
                         ---------------
City      CARSON         State     CA        County    Zip  90746
          ------                   --                       -----

REMOTE SITE
- -----------
Corp Number              222-26
                         ------
Installation Address     13325 BECH AVENUE
                         -----------------
City      MARINA DEL RAY State     CA        County    Zip  90746
          --------------           --                       -----

REMOTE SITE    
- -----------
Corp Number              222-27
                         ------
Installation Address     10839 LA REINA AVENUE
                         ---------------------
City      DOWNEY         State     CA        County    Zip  90241
          ------                   --                       -----

REMOTE SITE
- -----------
Corp Number              222-28
                         ------
Installation Address     2204 N. LONG BEACH
                         ------------------
City      COMPTON        State     CA        County    Zip  90221
          -------                  --                       -----

REMOTE SITE
- -----------
Corp Number              222-29
                         ------
Installation Address     2900 CRENSHAW BOULEVARD
                         -----------------------
City      LOS ANGELES    State     CA        County    Zip  90016
          -----------              --                       -----

                               Page 2


<PAGE>

REMOTE SITE

Corp Number    222-33

Installation Address     550 N. CONTINENTAL #115

City      EL SEGUNDO          State     CA   County         Zip  90245

REMOTE SITE

Corp Number    250-20

Installation Address     6505 TAM O'SHANTER

City      STOCKTON            State     CA   County         Zip  95210

REMOTE SITE

Corp Number    250-28

Installation Address     16006 S. VIRGINIA

City      RENO                State     NV   County         Zip  89511

REMOTE SITE    

Corp Number    250-29

Installation Address     111 N. MOONEY BOULEVARD

City      TULARE              State     CA   County         Zip  93274

REMOTE SITE

Corp Number    250-30

Installation Address     1945 N. HELM AVENUE

City      FRESNO              State     CA   County         Zip  93727

                                   Page 3
<PAGE>

REMOTE SITE

Corp Number    250-31

Installation Address     311 B STREET

City      YUBA CITY           State     CA   County         Zip 95991

REMOTE SITE

Corp Number    250-49

Installation Address     1945 NORTH HELM     

City      FRESNO              State     CA   County         Zip  93727

REMOTE SITE

Corp Number    259-04

Installation Address     189  BUSINESS CENTER DRIVE

City      CORONA              State     CA   County         Zip  91720

REMOTE SITE

Corp Number    259-05

Installation Address     13816 RED HILL ROAD

City      TUSTIN              State     CA   County         Zip 92680

REMOTE SITE

Corp Number    259-06

Installation Address     302 E. ROWLAND

City      COVINA              State     CA   County         Zip 91723

                                   Page 4
<PAGE>

REMOTE SITE

Corp Number    250-16

Installation Address     27800 FRANKLIN ROAD

City      SOUTHFIELD          State     MI   County         Zip  48034

REMOTE SITE

Corp Number    250-15

Installation Address     PRINCETON & GULLEY ROAD

City      DEARBORN HEIGHTS    State     MI   County         Zip  48127

REMOTE SITE

Corp Number    250-18

Installation Address     27432 GROESBECK HIGHWAY

City      ROSEVILLE           State     MI   County         Zip  48066

REMOTE SITE

Corp Number    250-97

Installation Address     1575 ROHLWING ROAD

City      ROLLING MEADOWS     State     IL   County         Zip  60008

REMOTE SITE

Corp Number    250-37

Installation Address     1575 ROHLWING ROAD

City      ROLLING MEADOWS     State     IL   County         Zip  60008

                                   Page 5
<PAGE>

REMOTE SITE

Corp Number    250-22

Installation Address     688 INDUSTRIAL DRIVE

City      ELHURST             State     IL   County         Zip  60126

REMOTE SITE

Corp Number    250-41

Installation Address     8101 AUSTIN AVENUE

City      MORTON GROVE        State     IL   County         Zip  60053

REMOTE SITE

Corp Number    250-23

Installation Address     14150 CHICAGO ROAD

City      DOLTON              State     IL   County         Zip  60419

PRIMARY SITE

Corp Number    250-00

Installation Address     335 MAIN STREET

City      READING             State     MA   County         Zip  01867

REMOTE SITE

Corp Number    222-03

Installation Address     81 MYSTIC STREET

City      ARLINGTON           State     MA   County         Zip  02174

                                   Page 6
<PAGE>

REMOTE SITE

Corp Number    222-04

Installation Address     27 HALE STREET

City      NEWBURYPORT        State     MA   County         Zip  01950

REMOTE SITE

Corp Number    222-05

Installation Address     81 SCHOOL STREET

City      QUINCY              State     MA   County         Zip  02169

REMOTE SITE

Corp Number    222-07

Installation Address     149 WAREHAM ROAD

City      MARION              State     MA   County         Zip  02738

REMOTE SITE

Corp Number    222-08

Installation Address     15 FARRAR FARM ROAD

City      NORWELL             State     MA   County          Zip 02061

REMOTE SITE    

Corp Number    222-10

Installation Address     15 LOCUST ROAD

City      ORLEANS             State     MA   County         Zip  02653

                                   Page 7
<PAGE>

REMOTE SITE

Corp Number    222-12

Installation Address     ONE VAN CORTLANDT AVENUE

City      OSSINING            State     NY   County         Zip  10562

REMOTE SITE

Corp Number    222-13

Installation Address     12 SAMSONDALE AVENUE

City      W. HAVERSTRAW       State     NY   County         Zip  10993

REMOTE SITE

Corp Number    222-17

Installation Address     88 SHERMAN STREET

City      CAMBRIDGE           State     MA   County         Zip  02141

REMOTE SITE

Corp Number    222-23

Installation Address     26 WILLIAMS STREET

City      CLINTON             State     MA   County         Zip  01510

REMOTE SITE

Corp Number    250-01

Installation Address       8 COMMERCIAL STREET

City      CONCORD             State     NH   County         Zip  03301

                                   Page 8
<PAGE>

REMOTE SITE

Corp Number    250-02

Installation Address     4 FRANKLIN STREET

City      BROCKTON            State     MA   County         Zip  02401

REMOTE SITE

Corp Number    250-04

Installation Address     1123 MAIN STREET

City      SPRINGFIELD         State     MA   County         Zip  01103

REMOTE SITE

Corp Number    250-05

Installation Address     116 MAIN STREET

City      WATERTOWN           State     MA   County         Zip  02172

REMOTE SITE

Corp Number    250-07

Installation Address     55 JACKSON STREET

City      SAUGUS              State     MA   County         Zip  01906

REMOTE SITE

Corp Number    250-08

Installation Address     NIBLICK ROAD

City      ENFIELD             State     CT   County         Zip  06082

                                   Page 9
<PAGE>

REMOTE SITE

Corp Number    250-09

Installation Address     360 WASHINGTON STREET

City      STOUGHTON           State     MA   County         Zip  02072

REMOTE SITE

Corp Number    250-10

Installation Address     150 GREENLEAF AVENUE

City      PORTSMOUTH          State     NH   County         Zip  03801

REMOTE SITE

Corp Number    250-11

Installation Address     1 DELAWARE DRIVE

City      SALEM               State     NH   County         Zip  03079

REMOTE SITE

Corp Number    250-12

Installation Address     186 MAIN STREET

City      N. HAMPTON          State     MA   County         Zip  01060


REMOTE SITE

Corp Number    250-13

Installation Address     335 MAIN STREET

City      READING             State     MA   County         Zip  01867

                                   Page 10
<PAGE>

REMOTE SITE

Corp Number    250-14

Installation Address     294 MAIN STREET

City      SACO                State     ME   County         Zip  04072

REMOTE SITE

Corp Number    250-15

Installation Address     PRINCETON & GULLEY ROAD

City      DEARBORN HEIGHTS    State     MI   County         Zip  48127

REMOTE SITE

Corp Number    250-24

Installation Address     1110 E. MOUNTAIN

City      WESTFIELD           State     MA   County         Zip  01086

REMOTE SITE

Corp Number    250-25

Installation Address     159 EAST GROVE STREET

City      MIDDLEBORO          State     MA   County         Zip  02346

REMOTE SITE

Corp Number    250-27

Installation Address     WEST CENTRAL

City      NATICK              State     MA   County         Zip  01760

                                   Page 11
<PAGE>

REMOTE SITE

Corp Number    250-33

Installation Address     7 B WHEELING AVENUE

City      WOBURN              State     MA   County         Zip  01801

REMOTE SITE

Corp Number    250-34


Installation Address     115 EPPING ROAD

City      EXETER              State     NH   County         Zip  03833

REMOTE SITE

Corp Number    250-44

Installation Address     681 FALMOUTH ROAD, BUILDING C

City      MASHPEE             State     MA   County         Zip  02649

REMOTE SITE

Corp Number    250-45

Installation Address      172 CENTRAL STREET

City      MILFORD             State     MA   County         Zip  01757

REMOTE SITE

Corp Number    250-46

Installation Address     41 MARBLE STREET

City      REVERE              State     MA   County         Zip  02151

                                   Page 12
<PAGE>

REMOTE SITE

Corp Number    250-50

Installation Address     100 BRADY DRIVE

City      PORTSMOUTH          State     NH   County         Zip  03801

REMOTE SITE

Corp Number    058-29

Installation Address     5934 RICHARD STREET

City      JACKSONVILLE        State     FL   County         Zip  32216

REMOTE SITE

Corp Number    170-01

Installation Address     141 N.W. 16TH STREET

City      POMPANO BEACH       State     FL   County         Zip  33060

REMOTE SITE

Corp Number    170-02

Installation Address     6781 W. SUNRISE BOULEVARD

City      PLANTATION          State     FL   County         Zip  33313

REMOTE SITE

Corp Number    250-38

Installation Address     5934 RICHARD STREET

City      JACKSONVILLE        State     FL   County         Zip  32216
                    
                                   Page 13
<PAGE>

REMOTE SITE

Corp Number    250-39

Installation Address     5934 RICHARD STREET

City      JACKSONVILLE        State     FL   County         Zip  32216

REMOTE SITE

Corp Number    250-42

Installation Address     5934 RICHARD STREET

City      JACKSONVILLE        State     FL   County         Zip  32216

REMOTE SITE

Corp Number    250-51

Installation Address     5934 RICHARD STREET

City      JACKSONVILLE        State     FL   County         Zip  32216

                                   Page 14


<PAGE>

                      ON/LINE OPERATING & LICENSE AGREEMENT
                                  ATTACHMENT A
                 CUSTOMER'S COMPUTER FACILITIES AND REMOTE SITES

PRIMARY SITE

Corp Number              250-00
Installation Address     335 Main Street
City Reading                  State     ma   County         Zip  1867

REMOTE SITE

Corp Number              250-19
Installation Address     100 Main Street
City Dover                    State     NH   County         Zip  3820

REMOTE SITE

Corp Number              222-30
Installation Address     8 N. Main Street
City Attleboro                State     MA   County         Zip  2703

<PAGE>

                      ON/LINE OPERATING & LICENSE AGREEMENT
                                  ATTACHMENT A
                 CUSTOMER'S COMPUTER FACILITIES AND REMOTE SITES

PRIMARY SITE

Corp Number              250-97
Installation Address     1575 Rohlwing Road
City Rolling Meadows          State     IL   County         Zip  60008

REMOTE SITE

Corp Number              250-40
Installation Address     1304 Marquette Dr.
City Romeoville               State     IL   County         Zip  60441


<PAGE>

                      ON/LINE OPERATING & LICENSE AGREEMENT
                                  ATTACHMENT B
                         SELECTED PRODUCTS AND SERVICES

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                     - 1 -


<PAGE>

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                     - 2-

<PAGE>

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                     - 3 -

<PAGE>

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                     - 4 -
<PAGE>

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                     - 5 -
<PAGE>

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                     - 6 -
<PAGE>

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                     - 7 -
<PAGE>

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                     - 8 -


<PAGE>

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                     - 9 -


<PAGE>
                                     ATTACHMENT B

                       ON/LINE OPERATING AND LICENSE AGREEMENT

                                 BENCHMARK STATEMENTS


                                    DISCOUNT LEVEL


<TABLE>
<CAPTION>

PRODUCT             STANDARD       1ST         2ND         3RD         4TH         5TH         6TH         7TH         8TH
<S>                  <C>           <C>         <C>         <C>         <C>         <C>         <C>          <C>         <C>
    [*]                [*]         [*]         [*]         [*]         [*]         [*]         [*]          [*]         [*]

Benchmark Statement
Benchmark Statement
(100% MSO)                                                     [*]
Benchmark Statement
(100% Division)
</TABLE>




                  DISCOUNT LEVEL         MSO SUBSCRIBERS
                  --------------         ---------------

                      1st         100,000     -           249,999
                      2nd         250,000     -           499,999
                      3rd         500,000     -           999,999
                      4th       1,000,000     -         1,499,999
                      5th       1,500,000     -         1,999,999
                      6th       2,000,000     -         2,999,999
                      7th       3,000,000     -         3,999,999
                      8th       4,000,000     -            and up

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


                                     -10-

<PAGE>

                                      APPENDIX 1
                                   FUNCTION MATRIX



NOTE:  All functionality that has not been moved forward
to Continental requested dates is "core" to DDP/SQL
and therefore, the USCS available dates are our
best delivery date.

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                        1

<PAGE>

                                    APPENDIX 1
                                 FUNCTION MATRIX

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


                                        2

<PAGE>

                                    APPENDIX 1
                                 FUNCTION MATRIX

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


                                        3

<PAGE>

                                    APPENDIX 1
                                 FUNCTION MATRIX

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                        4

<PAGE>

                                    APPENDIX 1
                                 FUNCTION MATRIX

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


                                          5

<PAGE>


                                    APPENDIX 1
                                 FUNCTION MATRIX

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


                                          6

<PAGE>


                                    APPENDIX 1
                                 FUNCTION MATRIX

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


                                          7

<PAGE>


                                    APPENDIX 1
                                 FUNCTION MATRIX

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


                                          8

<PAGE>


                                    APPENDIX 1
                                 FUNCTION MATRIX

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                          9

<PAGE>


                                    APPENDIX 1
                                 FUNCTION MATRIX

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


                                          10
<PAGE>


                                    APPENDIX 1
                                 FUNCTION MATRIX

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


                                          11

<PAGE>


                                    APPENDIX 1
                                 FUNCTION MATRIX

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


                                          12

<PAGE>


                                    APPENDIX 1
                                 FUNCTION MATRIX

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


                                          14

<PAGE>


                                    APPENDIX 1
                                 FUNCTION MATRIX

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


                                          15

<PAGE>


                        ON/LINE OPERATING AND LICENSE AGREEMENT

                                      APPENDIX 2

                                OPERATING LIMITATIONS

1)  The Programs listed below, and no others, can be run at any time; however,
    these Programs are to be run primarily during normal business hours
    (response measurement period).

    Program #                          Description
    ---------                          -----------

       100                             Order Entry
       250                             Dispatch
       260                             Check-in
       600                             Pay/Adjust
       607                             Lockbox Processing
       200                             Select CDW File
       224                             Route Cards
       211                             Route/Assign
       220                             Work Orders
       130                             Director File Maintenance
       140                             Personnel File Maintenance
       110                             Quota File Maintenance
       160                             Forms Writer
       900                             Keyboard Training
       025                             Customer Repair
       300                             Box File Maintenance
       350                             Addressable Box Driver (ARU/ANI)
       370-375                         ANI Drivers
       342,345                         ARU Drivers
                                       Terminal In-Truck Driver
       700                             Print Spooler
       150                             Complex File Maintenance
       610                             Post/Print Batches


                                         -1-

<PAGE>


2)   The following batch jobs should only be run after normal business hours.
     In the event any of these batch jobs are running, the response time
     criteria will no longer be applicable.

                                       Description
                                       -----------

                                       Daily Performance
                                       Unreturned Converter
                                       Capitalized Drops
                                       Month-End Performance
                                       Print Cost by Aging
                                       Print Customer Products
                                       Rate Increase Run
                                       M/T Builder
                                       Customer Purge
                                       Change Group Events
                                       Hot Move/Disc Reports
                                       Customer Labels
                                       EFTS Processing
                                       Inst/Tech/Equip Report
                                       Refunds Run
                                       Write-offs
                                       Not Dones/Cancels
                                       Program Log Maintenance
                                       Collection Summary
                                       Supplier Activity
                                       Sales Commission
                                       Mass Correction-Print
                                       Box Select
                                       Status Summary
                                       Event Select
                                       WIP File Select
                                       Unreturned Converters
                                       Universal Select-when avail.
                                       Mass Correction-Key-in
                                       Collections Run
                                       House/Customer Select


                                         -2-

<PAGE>


                                      APPENDIX 3
                          HARDWARE CONFIGURATION REQUIREMENTS
                                 PERFORMANCE STANDARDS
                                  READING DATA CENTER
                        POMPANO -  K1010 JACKSONVILLE - B SYSTEM
                                       484 PORTS
                                375K ACTIVE SUBSCRIBERS

Description                                      Qty
- -----------                                      ---
K1008, Scal Parallel Srvr Pkg, 8 proc             1
 Base System Cabinet                              4
 Processors (32mb Mem)                            8
 Multifunction Controllers                        8
 RMI Modem                                        1
I/O Expansion Cabinet, Dual Row                   5
Substitute 96MB for 32MB Pr.                      4
Non-Stop Kernel - Per Proc                        8
Run-Time SQL                                      1
Pathway                                           1
Exchange - RJE                                    1
X.25 Access Method                                1
Expand                                            1
Measure                                           1
C Compiler                                        1

Additional Hardware Components
- ------------------------------
Scal Parallel Srvr Add-on, 2 Proc                 1
Substitute 95mb for 32mb, Pair                    1
Non-Stop Kernel                                   2
3650 Communications Subsystem                     1
Fiber Optic Cable, 25m                            2
4 Port Async LIU                                 10
Comm Stacking Pedestal                            3
Cable Mgmt Kit                                    5
Dual Row Configuration Base Kit                   1
Disk Drive, 1.038gb Internal                      4
4510 12 Pak 2gb Disk Drive                        1
4510 4 Pak 2gb Disk Drive                         1
3128 Controllers                                  6
5175 Tape Drive                                   1
517-025W 25' Tape Cable Subst.                    3
Pedestal, Modular Storage Sys                     1
Enable Placement Kit                              1
SCSI BIC                                          1
3214 Tape Controller                              3



DISC SPACE ANALYSIS SHOWED 890MB OF NON-CABLEDATA, NON-TANDEM 
SOFTWARE/DATABASE. NEED TO ADD ONE ADDITIONAL VOLUME, (2 DRIVES), TO 
ACCOMMODATE THIS DATA. 30 OF 60 I/O SLOTS ARE POPULATED
USE (4) 648MB DISK FOR S/I AND MISC. STATIC FILES FROM EXISTING INVENTORY 
CONFIGURATION INCLUDES DATA STORAGE FOR EXPANDED LEDGER ASYNCHRONOUS CABLING 
TO BE INCLUDED IN HARDWARE CONFIGURATION

<PAGE>

                                      APPENDIX 3
                          HARDWARE CONFIGURATION REQUIREMENTS
                                 PERFORMANCE STANDARDS
                                  READING DATA CENTER
                                         K1014
                             READING - SPRINGFIELD - A SYSTEM
                                       861 PORTS
                                825K ACTIVE SUBSCRIBERS

Description                                      Qty
- -----------                                      ---
K1012, Scal Parallel Srvr Pkg, 12 proc            1
 Base System Cabinet                              6
 Processors (32mb Mem)                           12
 Multifunction Controllers                       12
 RMI Modem                                        1
Substitute 96MB for 32MB Pr.                      6
Non-Stop Kernel - Per Proc                       12
Run-Time SQL                                      1
Pathway                                           1
Exchange - RJE                                    1
X.25 Access Method                                1
Expand                                            1
Measure                                           1
C Compiler                                        1

Scal Parallel Srvr, Add-on, 2 Proc                1
Substitute 96mb for 32mb, Pair                    1
Non-Stop Kernel                                   2
1038mb Disk Drives                                4
4510 30 Pack 2GB Disk Drives                      1
4510 4 Pak 2gb disk                               1
3128 Controllers                                  12
I/O Expansion Cabinet, Dual Row                   7
5175 Tape Drive                                   1
517-025W 25' Tape Cable Subst.                    3
Enable Placement Kit                              2
Pedestal, Modular Storage Sys                     2
3850 Comm Subsystem                              15
Fiber Optic Cables                               30
Cable Management Kit                             10
Comm Pedestal                                     5
4 Port Async LIU                                 216
3214 Tape Controller                              3
SCSI BIC                                          1
Dual Row Base Configuration Kit                   1
Cable, 10156-01                                   2



DISC SPACE ANALYSIS SHOWED 890MB OF NON-CABLEDATA, NON-TANDEM SOFTWARE/DATABASE.
NEED TO ADD ONE ADDITIONAL VOLUME, (2 DRIVES), TO ACCOMMODATE THIS DATA.
49 OF 84 I/O SLOTS ARE POPULATED
USE (5) 648MB DISK FOR S/I AND MISC. STATIC FILES FROM EXISTING INVENTORY
CONFIGURATION INCLUDES DATA STORAGE FOR EXPANDED LEDGER
ASYCHRONOUS CABLING TO BE INCLUDED IN HARDWARE CONFIGURATION

<PAGE>

                                      APPENDIX 3
                          HARDWARE CONFIGURATION REQUIREMENTS
                               PERFORMANCE REQUIREMENTS
                             ROLLING MEADOWS DATA CENTER
                                  K1000 6 PROCESSOR
                                   ROLLING MEADOWS
                                      256 PORTS
                               245K ACTIVE SUBSCRIBERS


Description                                      Qty
- -----------                                      ---
K1006, Scallable Parallel Srvr Pkg.               1
 System Cabinet                                   3
 Processor (32MB)                                 6
 Multifunction Controllers                        6
 RMI Modem                                        1
Substitute 96MB for 32MB Pr.                      3
NonStop Kernel (per CPU)                          6
NonStop SQL Runtime                               1 
Expand                                            1
Pathway NonStop Systems                           1
C Compiler                                        1
Measure                                           1
X.25 Access Method                                1
Exchange                                          1

I/O Expansion Cabinet                             3
4510 12 Pack 2gb Disk Drive                       1
3128 Controllers                                  4
5175 Tape Drive                                   1
517-025W 25' Tape Cable Subst.                    3
Internal 1.038gb Disk Drive                       4
Pedestal, Modular Storage Sys                     1
Enable Placement Kit                              1
Async Controllers (3606)                          16
Sync Controllers (3605)                           1
Universal Printer Controller                      1
Cable, 10156-01                                   1
3214 Tape Controller                              3
SCSI BIC                                          1



DISC SPACE ANALYSIS SHOWED 155MB OF NON-CABLEDATA, NON-TANDEM SOFTWARE/DATABASE.
NEED TO ADD ONE ADDITIONAL VOLUME, (2 DRIVES), TO ACCOMMODATE THIS DATA.
26 OF 36 I/O SLOTS ARE POPULATED
USE (4) 648MB DISK FOR S/I AND MISC. STATIC FILES FROM EXISTING INVENTORY
CONFIGURATION INCLUDES DATA STORAGE FOR EXPANDED LEDGER
ASYNCHRONOUS CABLING TO BE INCLUDED IN HARDWARE CONFIGURATION

<PAGE>


                                      APPENDIX 3
                          HARDWARE CONFIGURATION REQUIREMENTS
                               PERFORMANCE REQUIREMENTS
                                 STOCKTON DATA CENTER
                                   K1000 2 PROCESSOR
                                      SOUTHFIELD
                                       118 PORTS
                                141K ACTIVE SUBSCRIBERS

Description                                      Qty
- -----------                                      ---
K1002 Scalable Parallel Srvr Pkg                  1
 System Cabinet                                   1
 Processor (32MB)                                 2
  Multifunction Controllers                       2
 RMI Modem                                        1
Substitute 96MB for 32MB Pr.                      1
NonStop Kernel (per CPU)                          2
NonStop SQL Runtime                               1
Expand                                            1
Pathway NonStop Systems                           1
C Compiler                                        1
Measure                                           1
X.25 Access Method                                1
Exchange                                          1

4510 6 Pak 2gb Disk Drive                         1
Enable Placement Kit                              1
Pedestal, Modular Storage Sys                     1
3128 Controllers                                  2
Internal 1.038gb Disk Drive                       4
Universal Printer Controller                      1
System Printer Conversion Kit                     1
3214 Tape Controller                              1
5175 Tape Drive, 6250bpl                          1
517-025W 25' Tape Cable Subst.                    2
I/O Expansion Cabinet                             1
Cables 10156 (system printer)                     1
3650 Communications Subsystem                     2
4 Port Async LIU                                  30
Fiber Optic Cable,25m                             4
Comm. Stacking Pedestal                           1
SCSI BIC                                          1
Cable Mgmt. Kit                                   1



USE (2) 648MB DISK FOR S/I AND MISC. STATIC FILES FROM EXISTING INVENTORY
CONFIGURATION INCLUDES DATA STORAGE FOR EXPANDED LEDGER
10 OF 12 I/O SLOTS ARE POPULATED
DISC SPACE ANALYSIS SHOWED 193MB OF NON-CABLEDATA, NON-TANDEM SOFTWARE/DATABASE.
NEED TO ADD ONE ADDITIONAL VOLUME, (2 DRIVES), TO ACCOMMODATE THIS DATA.
7 ASYNCS FROM SOUTHFIELD CAN'T BE USED DUE TO I/O SLOT LIMITATIONS.  SEND TO
STOCKTON FOR EL SEGUNDO
(1) SCSI BIC FROM EL SEGUNDO
ASYNCHRONOUS CABLING TO BE INCLUDED IN HARDWARE CONFIGURATION

<PAGE>


                                      APPENDIX 3
                          HARDWARE CONFIGURATION REQUIREMENTS
                                 PERFORMANCE STANDARDS
                                 STOCKTON DATA CENTER
                                 STOCKTON & EL SEGUNDO
                                       656 PORTS
                                621K ACTIVE SUBSCRIBERS

Description                                      Qty
- -----------                                      ---
K1012 Scalable Parallel Srvr Pkg                  1
 System Cabinet                                   6
 Processor (32MB)                                12
  Multifunction Controllers                      12
 RMI Modem                                        1
Substitute 96MB for 32MB Pr.                      6
NonStop Kernal (per CPU)                         12
NonStop SQL Runtime                               1
Expand                                            1
Pathway NonStop Systems                           1
C Compiler                                        1
Measure                                           1
X.25 Access Method                                1
Exchange                                          1

Additional Hardware Components
- ------------------------------
4510 24 Pak 2gb Disk Drive                        1
4510 2 Pak 2gb Disk Drive                         1
Enable Placement Kit                              2
Pedestal, Modular Storage Sys                     2
3128 Controllers                                 10
5175 Tape Drive                                   1
517-025W 25' Tape Cable Subst.                    3
Internal 1.038gb Disk                             4
Async Controllers (3606)                          3
Universal Printer Controller                      1
System Printer Conversion Kit                     1
SCSI BIC                                          1
3214 Tape Controller                              3
I/O Expansion Cabinet, Dual Row                   6
Dual-Row Config. Base Kit                         1
Cables 10156 (system printer)                     1



USE (5) 648MB DISK FOR S/I AND MISC. STATIC FILES FROM EXISTING INVENTORY
CONFIGURATION INCLUDES DATA STORAGE FOR EXPANDED LEDGER
57 OF 72 I/O SLOTS ARE POPULATED
DISC SPACE ANALYSIS SHOWED 959MB OF NON-CABLEDATA, NON-TANDEM SOFTWARE/DATABASE.
NEED TO ADD ONE ADDITIONAL VOLUME, (2 DRIVES), TO ACCOMMODATE THIS DATA.
(7) ASYNCS FROM SOUTHFIELD, (4) ASYNCS FROM FRESNO, (27) ASYNCS FROM EL SEGUNDO
ASYCHRONOUS CABLING TO BE INCLUDED IN HARDWARE CONFIGURATION

<PAGE>


                                      APPENDIX 4

                              MIGRATION RESPONSIBILITIES

CABLEDATA

- - 1 on-site migration rep for every 50,000 active subscribers
- - Migration rep(s) on site at 9:00 a.m. on the day files are loaded down.
  Rep(s) leave site 2 days later at 5:00 p.m. after corp is "live" for 2 days.
- - ABL Prep and Extract Programs to be run by Data Center on-site migration
  coordinator
- - Data Center on-site migration coordinator to remain on-site for 5 Days after
  Data Center has completed migrations
- - 24 hour support provided during migration period
- - A set of 7 training videos with workbooks will be provided to each corp and
  Data Center
- - A playcorp will be provided for each Data Center for training purposes
- - Test files created for each corp 1 month prior to migration
- - QSP upgrade kit installation to be done by Computerland or corp,
  coordinated by migration coordinator
- - Database administrator to be on-site at Data Centers to load down corp files
- - Programmer on site in Reading, MA; Jacksonville, FL, and Pompano, FL for
  1 to 2 days to assess what effort will be needed to convert Continental's
  custom programs



CONTINENTAL CABLEVISION

- - Corp employees need to be trained utilizing the training videos before
  migration rep(s) arrive on site.
- - At least 1 crt at each corp will need to be upgraded to Quick Screen Plus for
  training(or 1 pc upgraded with the QSP emulator)
- - Non-CableData reports will need to be provided to CableData for
  conversion if desired
- - All corps must be on DDP Release 8.11 in order to be migrated to SQL
  Release 2.5
- - Data Center must save each corp's Manager, Event, and Batch files the
  night that ABL is started and backed up to tape
- - Data Center must run a PPV charging run and reformat the Manager file the
  night prior to the backup for live files
- - Data Center must run special rev "V" TBOL programs during migration
  period
- - Data Center must have at least 1 upgraded crt in order to run ABL programs
- - Bank needs to be notified of sequence number change
- - Corps and Data Centers need to have management representative on-site
  at all times while CableData personnel are on-site
- - If any corp is using ANI, it must be converted to OLVQ before the migration
- - Corps must not cutoff during migration period
- - Backup for live files must not be done during twilight period

<PAGE>

                                         USCS
                                      KEY PLAYERS


         Migration Department Manager            Jill Grant

         Migration Scheduling Manager            Larry Alsbrook

         Database Administrator (Chicago)        Sallia Bandy
         Data Center Coordinator (Chicago)       Debbie Persram

         Database Administrator (Stockton)       Mike Staahl
         Data Center Coordinator (Stockton)      Diana Oatis

         Database Administrator (Reading)        Ed Hewett
         Data Center Coordinator (Reading)       Linda Lorusso




                                CONTINENTAL CABLEVISION
                                      KEY PLAYERS


         Data Center Coordinator (Chicago)       Joan Polaski

         Data Center Coordinator (Stockton)      Glen Calloway

         Data Center Coordinator (Reading)       Bob Gatesy

<PAGE>

                                                                EXHIBIT 10.28



                            SOFTWARE DEVELOPMENT AGREEMENT

    THIS SOFTWARE DEVELOPMENT AGREEMENT ("Agreement") is made and entered into
this 27th day of December, 1995 by and between BellSouth Interactive Media
Services, Inc., a California corporation ("BIMS"), and CableData, Inc., a
California corporation ("CableData").

    WHEREAS, BIMS is in the process of establishing a network for the provision
of interactive media and other services to consumers and other entities, and has
determined the need for an integrated subscriber management system (i.e., to
handle billings, various customer support functions, etc.) as an integral part
of such network;

    WHEREAS, CableData is in the business of developing and providing
integrated subscriber management and billing systems to customers, and has
responded to BIMS' request for proposals by the submission of a proposal which
it has represented will meet BIMS' requirements through the use of CableData's
standard product, CableData's Intelecable -TM- (which is the subject of a
separate, but related, Operating and License Agreement), and various
enhancements and customizations thereto;

    WHEREAS, based upon CableData's proposal, BIMS desires to have CableData
develop and furnish to BIMS such an integrated subscriber management system in
accordance with specifications mutually agreed upon by BIMS and CableData and as
documented in various agreements entered into by and between BIMS and CableData,
including, without limitation, this Agreement and the Operating and License
Agreement entered into concurrently herewith;

    WHEREAS, part of the integrated subscriber management system includes
custom software and certain enhancements and other features to be developed by
CableData and licensed on an unrestricted basis to BIMS, all of which will
operate in concert with, among other things, the CableData's Intelecable -TM-
software program to be provided by CableData and certain additional software
programs to be provided by third parties;

    WHEREAS, it was previously the parties' intention to have assigned to BIMS
ownership of the custom software and the enhancements and other features
referenced in the preceding

                                         -1-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

paragraph on either an exclusive basis or on a joint basis with CableData, 
and BIMS has agreed, for certain consideration described further herein the 
sufficiency of which is hereby acknowledged, to forego such ownership in 
favor of CableData;

    WHEREAS, CableData's parent company, U.S. Computer Services ("USCS"), and
BIMS have previously entered into an Interim Services Agreement, dated December
5, 1994, pursuant to which CableData has commenced the development of specific
features of an integrated subscriber management system for BIMS, and which the
parties agreed would be superseded and replaced by a more definitive agreement;

    WHEREAS, CableData and BIMS agree that the terms and conditions set forth
herein shall constitute such definitive agreement and shall govern and determine
the rights and obligations of the parties with respect to the services described
herein, whether such services are rendered after the date of this Agreement or
were rendered prior to the date of this Agreement under the auspices of the
Interim Services Agreement; and

    WHEREAS, CableData is ready, willing and able to continue the provision to
BIMS, and BIMS is ready, willing and able to accept, the software development
and related provided for herein, pursuant to the terms and conditions set forth
herein;

    NOW, THEREFORE, in consideration of the foregoing, as well as the
obligations herein made and undertaken, the parties, intending to be legally
bound, do hereby agree as follows:

    1.   DEFINITIONS.

         (a)  "Acceptance" means the completion of the Work Order whereby BIMS
has completed its Acceptance Testing and CableData has corrected any defects
reported relating to the applicable Software Release.  BIMS shall notify
CableData in writing upon Acceptance of each Software Release.

         (b)  "Acceptance Testing" means the process used by BIMS to verify 
that the Software Release provided to BIMS by CableData meets the 
specifications contained in the Business Requirement Specification and in the 
Detailed Design Specifications.

         (c)  "Affiliate" means, with respect to BIMS, any entity designated by
BIMS for inclusion under this Agreement which controls, is controlled by or is
under common control with BIMS, or any other entity in which BIMS or its
Affiliates have any material form of ownership or managerial interest, as
further described and qualified in the License Agreement.


                                         -2-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

         (d)  "Application Program Interfaces", or "APIs", and "Remote
Procedure Calls", or "RPCs", mean those portions of the Interface Software
required to enable external third party applications to interface with the Core
Software and the Custom Software for purposes of passing transactions and data
to and from the Core Software and Custom Software.  References herein to APIs
and/or RPCs shall be deemed to include the APIs and/or RPCs developed under the
Interim Services Agreement.

         (e)  "Business Day" means (i) with respect to any time period within
which BIMS must respond, Monday through Friday, excluding any holidays
recognized by BIMS as company-wide holidays; and (ii) with respect to any time
period within which CableData must respond, Monday through Friday, excluding any
holidays recognized by CableData as company-wide holidays.

         (f)  "Business Requirement Specification" means mutually approved
business specifications for features and functionality to be contained in the
Software Release.

         (g)  "Confidential Information" means any data or information, other
than Trade Secrets, that is of value to BIMS and is not generally known to
competitors of BIMS.  To the extent consistent with the foregoing, Confidential
Information includes, but is not limited to, lists of any information about
BIMS' or its Affiliates' executives and employees, marketing techniques, price
lists, pricing policies, business methods, and contracts and contractual
relations with customers and suppliers.  Confidential Information also includes
any information described in this paragraph which may be obtained from another
party which BIMS treats as proprietary or designates as confidential
information, whether or not owned or developed by BIMS.  Unless otherwise agreed
by the parties in connection with an individual Work Order (s), the Deliverables
to be provided by CableData under this Agreement shall not be considered to be
Confidential Information.

         (h)  "Content Providers" mean the content providers which are
delivering their products and/or services over BIMS' broadband network.

         (i)  "Core Software" is the existing CableData's Intelecable -TM-
subscriber management information system, as such may be modified, updated and
upgraded from time to time on BIMS' System, to be provided by CableData pursuant
to the terms of the License Agreement and as more particularly described in that
License Agreement.

                                         -3-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>


         (j)  "Custom Software" means the software which performs the functions
described in and complies with the Business Requirement Specification and the
Detailed Design Specifications.  The Custom Software shall be deemed to include
the "Custom Work Product", as defined in the Interim Services Agreement, and the
Enhancements to the Core Software.

         [*]

         (l)  "Deliverables" mean all deliverables which CableData is required
to provide to BIMS pursuant to this Agreement and/or any Work Order hereunder,
and shall include, without limitation, the Custom Software, the Interface
Software and the Documentation.

         (m)  "Detailed Design Specifications" means the written plan for
building the applicable Software Release code based upon the Business
Requirement Specification.

         (n)  "Documentation" means all operator and user manuals, guides,
listings, specifications, data dictionaries, logical data models, entity
relationship models, and other materials necessary for the complete
understanding and utilization of the functionality of the Custom Software,
including materials necessary for the complete understanding and utilization of
the functionality of the Custom Software, including materials useful for 
design (e.g., logic manuals, flow diagrams and principles of operation) and 
machine-readable text or graphic files subject to display or print-out.

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                         -4-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

         (o)  "Enhancements" mean those portions of the Custom Software which
represent new functionality, capabilities and table changes made to or within
the pre-existing code of the Core Software.  References herein to Enhancements
shall be deemed to include the Enhancements made under the Interim Services
Agreement.

         (p)  "Fixed Development Fee and Incentive Pricing" means a mutually
agreed single price with an incentive to CableData for early delivery of the
defined Software Release associated with a specific Work Order.

         (q)  "Implementation Schedule" means a document that sets forth the
timing of the Deliverables specified in the Work Order.

         (r)  "Information" means technical information, computer or other
specifications, documentation, works of authorship or other creative works,
ideas, knowledge, or data, written, oral or otherwise expressed (i.e., other
than in connection with the APIs, RPCs or Enhancements), originated by CableData
or any of its employees, consultants, representatives or agents as a result of
work performed under or in anticipation of this Agreement.

         (s)  "Interface Software" means the software necessary to provide
interfaces and interoperability between and among the Custom Software delivered
under this Agreement, the Core Software provided pursuant to the License
Agreement, and other foreign and ancillary systems existing at BIMS and/or being
provided to BIMS by third parties.  The Interface Software shall be deemed to
include the APIs and RPCs.

         (t)  "Interim Services Agreement" means the Interim Services Agreement
between BIMS and USCS, dated December 5, 1994, pursuant to which CableData has
commenced the provision of software development and related services to BIMS,
and which the parties agreed would be superseded and replaced by a more
definitive agreement.

         (u)  "Inventions" mean inventions, discoveries, or improvements which
are conceived, first reduced to practice, made or developed in anticipation of,
or in the course of, work performed under this Agreement by CableData or by one
or more of CableData's employees, consultants, representatives or agents.

         (v)  "License Agreement" means the Operating and License Agreement
between BIMS and CableData of even date herewith pursuant to which CableData
licenses the Core Software to BIMS.


                                         -5-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

         (w)  "Proposal" means USCS' Initial Response to BIMS' Request for an
Intelecable/Oracle Interface dated August 29, 1994, as modified by the facsimile
transmission from Dave H. Williams to Larry E. Ryan dated September 1, 1994, the
letter from Robert Crowley to Larry E. Ryan dated September 23, 1994 and the
Memorandum of Understanding dated December 5, 1994, between USCS and BIMS.

         (x)  "Self-Help Code" means any back door, time bomb, drop dead
device, or other software routine designed to disable a computer program
automatically with the passage of time or under the positive control of any
person or entity other than BIMS.  Self-Help Code does not include software
routines in the Custom Software, Interface Software or Core Software, if any
designed to permit BIMS (or a third party authorized by BIMS) to obtain access
to the System (e.g., remote access via modem) for purposes of maintenance or
technical support.

         (y)  "Software Change Management Plan" means the procedure to manage
requests for changes after approval of the Business Requirement Specification
and/or the Detailed Design Specifications, as set forth in Exhibit "A" attached
hereto.

         (z)  "Software Release" means the software to be provided to BIMS by
CableData pursuant to any Work Order hereunder.

         (aa) "Source Code" shall mean the source code corresponding to the
applicable software, plus any pertinent commentary or explanation that may be
necessary to render the Source Code understandable and usable by highly-trained
computer programmers who are generally familiar with Oracle database products
and the C and C++ programming languages.  The Source Code shall be in a format
and on a storage medium suitable for loading into BIMS' computer equipment, and
shall not be encrypted.  The Source Code shall include system documentation and
schematics, all as necessary or useful for the effective understanding and use
of the Source Code.  Insofar as the "development environment" employed by
CableData for the development, maintenance and implementation of the Source Code
includes any device, programming, or documentation not commercially available to
BIMS on reasonable terms through readily known sources other than CableData, the
Source Code shall include all such devices, programming and documentation;
provided, however, that IBM's obligation to provide such devices and/or
programming shall only extend to the object code form of such devices and/or
programming.  The foregoing reference to such "development environment" is
intended to apply to any programs, including compilers, "workbenches," tools,
and higher-level (or)

                                         -6-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

"proprietary") languages, used by CableData for the development, maintenance and
implementation of the Source Code.

         (bb) "System" shall consist of the Custom Software and Interface
Software provided to BIMS hereunder, the Core Software (as defined in the
License Agreement) provided to BIMS pursuant to the License Agreement, and the
computer hardware and software identified or described in the Operating
Environment Attachment to the License Agreement, as supplemented by Work Orders
agreed to by the parties in accordance with the terms of this Agreement.

         (cc) "Time and Materials" means development fees based upon actual
time spent on the Software Release and based on hourly rates established in this
Agreement and cost of travel and materials required to create the Deliverable(s)
associated with the Work Order.

         (dd) "Trade Secrets" mean any information of BIMS, including but not
limited to technical data, a formula, a pattern, a compilation, a program, a
device, a method, a technique, a drawing, a process, financial data, financial
plans, product plans, or a list of actual or potential customers or suppliers,
without regard to the form of such information regarding actual or potential
customers or suppliers, which (i) derives economic value, actual or potential,
from not being generally known to and not being readily ascertainable by proper
means by other persons who can obtain economic value from its disclosure or use
and (ii) is the subject of efforts that are reasonable under the circumstances
to maintain its secrecy.  Trade Secrets shall include, but are not limited to ,
unpatented information relating to the development, manufacture or servicing of
products, information concerning proposed new products, market feasibility
studies, proposed or existing marketing techniques or plans, and computer
software, including, without limitation, source and object codes, flow charts,
algorithms, coding sheets, doctrines, sub-routines, compilers, assemblers,
design concepts and related documentation and manuals.  Trade Secrets also
include any information of the type described above which BIMS obtains from
another party and which BIMS treats as a Trade Secret, whether or not owned or
developed by BIMS.  Unless otherwise agreed by the parties in connection with an
individual Work Order(s), the Deliverables to be provided by CableData under
this Agreement shall not be considered to be Trade Secrets.

         (ee) "Unauthorized Code" means any virus, Trojan horse, worm, or other
software routines designed to permit unauthorized access, or to disable, erase,
or otherwise harm software, hardware,

                                         -7-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

or data.  The term Unauthorized Code does not include Self-Help Code.

         (ff) "Walk-thru" means a technical presentation prepared by CableData
and presented to BIMS for review, understanding and BIMS inputs relating to the
Business Requirement Specification and the Detailed Design Specifications.

         (gg) "Work Order" means the statement of work relating to a BIMS
initiated request for Deliverables.

    2.   BUSINESS REQUIREMENT SPECIFICATION.

         (a)  The Business Requirement Specification sets forth the functional,
performance and operational features and characteristics of a Software Release,
and of the services to be rendered by CableData hereunder, as set forth or
identified in Work Orders agreed to by the parties in accordance with the terms
of this Agreement.

         (b)  CableData will arrange and request BIMS' presence at a
requirements review meeting.  At this meeting, CableData will conduct a 
Walk-thru for BIMS of the proposed Business Requirement Specification.  BIMS 
shall make modifications as appropriate.  Upon agreement by both parties to 
the final Business Requirement Specification, CableData will prepare the 
document for approval by both parties.  The development by CableData of the 
Business Requirement Specification shall be at no cost to BIMS unless 
otherwise expressly provided for in a Work Order signed by both parties.

         (c)  Once signed by both parties in connection with the execution of a
Work Order, the Business Requirement Specification becomes the preliminary
specification upon which CableData shall build the Software Release under the
Work Order provisions of this Agreement.

         (d)  BIMS and CableData hereby acknowledge and agree that Exhibit "C"
attached hereto and incorporated herein by this reference sets forth BIMS'
initial Work Order pursuant to this Agreement (the "Initial Work Order").  The
parties further acknowledge that they have mutually agreed to the Business
Requirement Specification, the Implementation Schedule, the Fixed Development
Fee and all other information identified or set forth therein.  CableData will
develop the Deliverables identified in Exhibit "C" hereto and deliver same to
BIMS in accordance with Exhibit "C" and the terms and conditions of this
Agreement.  The


                                         -8-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

Custom Software and Interface Software will be furnished in Source Code and
machine-readable object code form.

    3.   SOFTWARE CHANGE MANAGEMENT PLAN.

    All changes to the Business Requirement Specification and/or the Detailed
Design Specifications must be requested in writing and require mutual agreement,
in accordance with the procedure set forth in the Software Change Management
Plan (Exhibit "A") attached hereto and by this reference made a part hereof.
Evaluation and/or implementation of requested changes may or may not result in
any modification to CableData's price, Implementation Schedule or other terms of
this Agreement.  CableData assumes the risk of any work performed or action
taken by CableData based upon oral statements, or on documents or notations, not
in accordance with the Business Requirement Specification, the Detailed Design
Specifications, this Section 3 and Exhibit "A" hereto.

    4.   DETAILED DESIGN SPECIFICATIONS.

    CableData shall, with BIMS' cooperation and joint participation, develop
and deliver to BIMS a set of Detailed Design Specifications based upon the
Business Requirement Specification.  The Detailed Design Specifications shall
include, as appropriate, system flow chats, program descriptions, file layouts,
database structures, report layouts and screen layouts, data dictionaries,
logical data models, entity relationship models, interface requirements and
layouts, conversion requirements and layouts and refined equipment requirements
for the Custom Software.  In addition, the Detailed Design Specifications shall
specifically address the program specifications for the Interface Software.
CableData will arrange and request BIMS' presence at a product design and
architecture meeting(s).  At this meeting(s), all known architecture and design
alternatives for the product(s) will be discussed and agreed upon by both
parties.  If the parties cannot reach agreement on the Detailed Design
Specifications within ten (10) Business Days of the initial product design and
architecture meeting referred to above, BIMS shall have the right to terminate
this Agreement and/or the applicable Work Order pursuant to Section 18 herein.
Once accepted by BIMS, the Detailed Design Specifications shall supplement the
Business Requirement Specification, and CableData shall commence programming for
the Custom Software and the Interface Software.


                                         -9-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

    5.   DEVELOPMENT FEES AND COMPENSATION.

    The parties contemplate the need for flexibility in the development fees
for Software Releases created by CableData for BIMS.  Time and Materials and
Fixed Development Fee and Incentive Pricing are two methods the parties agree to
follow with Fixed Development Fee as the preferred method.  The parties will
mutually agree upon the appropriate Development Fee method for each Work Order.

         a.   ALTERNATIVE PRICE DETERMINATION METHODS

         (i)  FIXED DEVELOPMENT FEE AND INCENTIVE PRICING can be used when the
parties have sufficiently detailed requirements for CableData sizing and quoting
of a fixed price.  CableData will evaluate the Business Requirement
Specification, and size the effort to build the Custom Software and/or Interface
Software.  CableData will then produce a schedule based on the amount of
development and testing required to satisfy the Business Requirement
Specification.  Where applicable to a particular Work Order, the parties shall
specify in such Work Order the Fixed Development Fee and Implementation
Schedule.  CableData agrees to invoice BIMS for services provided to BIMS by
CableData under each Work Order which specifies that services performed
thereunder are to be performed on a Fixed Development Fee basis, in accordance
with the schedule of payments set forth in such Work Order.

         (ii) TIME AND MATERIALS can be used when the parties do not have
sufficiently detailed requirements upon which CableData can appropriately size
the Software Release and quote a fixed price to BIMS.  Upon written agreement of
both parties, CableData will bill BIMS based on actual Time and Materials.
Price ceilings and other controls shall be as set forth herein and as specified
by the parties and contained in the specific Work Order, and BIMS shall not be
liable for any charges and/or expenses thereunder in excess of the price
ceilings specified or incurred by CableData other than in accordance with the
applicable controls established.  Time and Materials rates will be based on the
rates contained in Exhibit "B" attached hereto and incorporated herein by
reference, which Time and Materials rates shall be in no event more than the
lower of (1) the rates set fort in the Pricing Attachment to the License
Agreement, or (2) the rates which CableData charges to its other customers for
comparable work.  CableData agrees to invoice BIMS, upon achieving each
milestone set forth in the associated Implementation Schedule, for services
provided to BIMS by CableData under each Work Order which specifies that
services performed thereunder are to be performed on a Time and Materials basis,
in accordance with the applicable Time and Materials rates.  CableData


                                         -10-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

shall submit with each invoice, copies of time reports which relate to the
services being invoiced.  In addition to the foregoing, the requirements and
procedures set forth below shall apply to services performed under any Work
Order on Time and Materials basis:

         (A)  CableData shall invoice BIMS, monthly in arrears, for expenses
              incurred as a result of performing services in accordance with
              any Work Order.  Such expenses shall be limited to reasonable
              out-of-pocket expenses necessarily and actually incurred by
              CableData in the performance of its services hereunder, provided
              that:  (1)  such expenses have been estimated in the Work Order
              and BIMS has given its prior written consent for any such
              expenses; (2)  the expenses have been detailed on a form
              acceptable to BIMS and submitted to the appropriate BIMS Project
              Manager for review and approval; and (3)  if reasonably requested
              by BIMS, CableData submits supporting documentation in addition
              to the approved expense form.  It is understood that BIMS shall
              not reimburse CableData for commutation expenses under any
              circumstances.  It is also understood that any air transportation
              reimbursable hereunder shall be coach-economy and that
              entertainment by or on behalf of CableData shall be at no cost to
              BIMS.

         (B)  CableData will submit the charges and/or expenses to be invoiced
              for services performed and the applicable time reports or
              documentation under any Work Order to the BIMS Project Manager
              for that Work Order, for review and comment prior to actual
              invoicing.  BIMS will have five (5) days to review all such
              documentation, following which CableData will issue and invoice
              for payment.  Subject to Section 5(b) below, the charges and/or
              expenses invoiced in accordance with this Section, except for any
              amounts disputed by BIMS, shall be payable by BIMS within thirty
              (30) days of BIMS's receipt of each invoice.  Any disputed
              charges and/or expenses shall not affect payment of non-disputed
              charges and/or expenses, in accordance with the terms of this
              Agreement.

         (C)  CableData shall maintain complete and accurate accounting
              records, in a form in accordance with generally accepted
              accounting principles, to substantiate CableData's charges and
              expenses

                                         -11-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

              hereunder and CableData shall retain such records for a period of
              three (3) years from the date of final payment under any Work
              Order.

         (D)  BIMS shall have the right to have audited through an independent
              certified public accountant the books and records of CableData
              relating to the amounts invoiced to BIMS hereunder (other than
              for services performed on a Fixed Development Fee basis), for
              the purpose of verifying the amounts due and payable hereunder,
              upon at least five (5) Business Days' notice to CableData.  The
              cost of such audit shall normally be at BIMS' expense; provided,
              however, that CableData will bear the cost of the audit if the
              audit reveals any overpayment which, in the aggregate, is greater
              than three percent (3%) of the amount which was actually due for
              the period being audited.

         b.   RETAINAGE

         Notwithstanding any amount invoiced by CableData hereunder, BIMS shall
be obligated to pay only eighty percent (80%) of the undisputed amounts of each
invoice and the remainder shall constitute retainage, which shall be retained by
BIMS and shall not be payable until Acceptance of the Deliverables under the
applicable Work Order(s) and delivery to BIMS of all Documentation with respect
to the System or the Software Release, as applicable, together with the Source
Code corresponding to such Software Release.  Upon Acceptance of the
Deliverables under the applicable Work Order(s), BIMS shall pay fifty percent
(50%) of the retainage under such Work Order(s) to CableData within thirty (30)
days of receipt by BIMS of a request for such payment.  Upon delivery to BIMS of
all final Documentation with respect to the System or the Software Release, as
applicable, together with the Source Code corresponding to such Software
Release, BIMS shall pay the remaining fifty percent (50%) of the retainage under
such Work Order(s) to CableData within thirty (30) days of receipt by BIMS of a
request for such payment.

         c.   INCENTIVE PAYMENTS ON FIXED DEVELOPMENT FEE QUOTES

         Should the Deliverables associated with a particular Fixed Development
Fee Work Order be provided ahead of schedule, provided that such Deliverables
are capable of Acceptance by BIMS pursuant to Section 7 herein and/or in the
applicable Work Order without modification by CableData during the course of
such Acceptance Testing, BIMS shall pay CableData the Fixed Development


                                         -12-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

Fee plus an incentive amount to be mutually agreed upon by the parties in
connection with such Work Order.  Should CableData fail to provide the
Deliverables on schedule due to causes other than the acts or omissions of BIMS
or causes beyond CableData's control, such as delays attributable to third
parties providing products or services directly to BIMS under contract with BIMS
(i.e., as opposed to CableData's suppliers and/or subcontractors), all as
identified to BIMS by CableData in the appropriate progress report at such time
as required pursuant to Section 9(b) herein, BIMS shall pay CableData the
Development Fee less a Delay Damages amount to be mutually agreed upon by the
parties in connection with each such Work Order, as provided for in subsection
(d) below.  In the event the Deliverables associated with a particular Work
Order are not acceptable in accordance with Section 7 herein and/or as provided
in the applicable Work Order, no incentive payments will be due, regardless of
delivery time.

              [*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                         -13-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

[*]

E. DEVELOPMENT FEE DISCOUNTS

         As consideration for BIMS's commitment to engage CableData for 
future development of Custom Software and/or Interface Software, and in 
consideration for BIMS' agreement that CableData will own all Custom Software 
and Interface Software created pursuant to the Interim Services Agreement, as 
included in the Initial Work Order hereunder, and in recognition of the value 
of the ownership of such Custom Software and Interface Software by CableData, 
CableData hereby agrees to grant to BIMS discounts off of the Development 
Fees associated with the Initial Work Order, as well as with certain 
subsequent Work Orders, whether such Development Fees are on a Fixed 
Development Fee basis or are on a Time and Materials basis. The discounts 
shall be calculated as follows:

         (i) BIMS shall receive a discount of [*] off of the Development Fees 
             associated with any and all Work Orders issued by BIMS and 
             accepted by CableData on or before December 31, 1996 (collectively,
             the "1996 Work Orders"), until such time as the discounts under 
             this Section 5(e)(i) reach a total of [*].

        (ii) Thereafter, BIMS shall receive a discount off of the Development 
             Fees associated with all 1996 Work Orders based upon the level of 
             commitment made by BIMS with respect to such 1996 Work Orders, 
             which commitment shall be made by BIMS within forty-five (45) 
             days of BIMS' receipt of an estimate from CableData of the 
             Development Fees anticipated for such 1996 Work Orders. The 
             discounts shall be as follows: (A) in the event that BIMS' 
             aggregate commitment for 1996 Work Orders is less than or equal 
             to [*] then BIMS

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                         -14-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>


             shall receive a discount of [*] off of the Development Fees 
             associated with all 1996 Work Orders; (B) in the event that 
             BIMS' aggregate commitment for 1996 Work Orders is more than [*]
             but less than [*], then BIMS shall receive a discount of [*] 
             percent [*] off of the Development Fees associated with all 
             1996 Work Orders; and (C) in the event that BIMS' aggregate 
             commitment for 1996 Work Orders exceeds [*], then BIMS shall 
             receive a discount of [*] off of the Development Fees 
             associated with all 1996 Work Orders. In the event that BIMS 
             fails to achieve the level of commitment it had made with 
             respect to the 1996 Work Orders, the Development Fees for such 
             1996 Work Orders shall be adjusted at the end of the year to 
             reflect the lower discount, if one would have been applicable 
             under this Section 5(e)(ii), applied to the actual undiscounted 
             Development Fees payable by BIMS for such 1996 Work Orders. 
             Conversely, in the event that BIMS attains the threshold amount 
             of Development Fees for a higher level of discount under this 
             Section 5(e)(ii) than was applicable to the level of commitment 
             which BIMS had made with respect to the 1996 Work Orders, then 
             BIMS shall receive the higher discount off of the Development 
             Fees for all 1996 Work Orders from and after the Work Order 
             submitted by BIMS which causes the undiscounted Development 
             Fees to exceed the threshold for the higher level of discount 
             under this Section 5(e)(ii).

             By way of example, but not by way of limitation, in 
             the event that BIMS' aggregate commitment for 1996 Work Orders 
             is [*], and BIMS actually achieves undiscounted Development 
             Fees of [*] with respect to the 1996 Work Orders, the followng 
             will apply: (x) during the year, BIMS would have received a 
             discount of [*] off of the Development Fees associated with the 
             1996 Work Orders, such that it would have paid [*] (i.e., [*] 
             of [*] during the course of the year (note that, for ease of 
             illustration only, the discount


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


                                         -15-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>


             provided for in Section 5(e)(i) has not been reflected in this 
             example); and (y) based upon the actual undiscounted 
             Development Fees of [*], the actual discounted Development Fees 
             would be recomputed to reflect the lower [*] discount (i.e., [*]
             and BIMS will be obligated to pay to CableData the difference 
             of [*]. Conversely, assuming the same level of commitment of [*]
             if BIMS issues (and CableData accepts) a 1996 Work Order which 
             would cause the Development Fees for all 1996 Work Orders to 
             exceed [*], then BIMS shall receive a discount of thirty 
             percent [*] off of the Development Fees associated with such 
             1996 Work Order and for all subsequent 1996 Work Orders, but 
             such event shall not result in a price adjustment (e.g., in the 
             form of invoice credits or otherwise) for Development Fees 
             previously paid to CableData under prior 1996 Work Orders.

       (iii) Following 1996, BIMS will be granted discounts as negotiated 
             between the parties on the basis of BIMS's commitment to certain 
             levels of

         f.   PAYMENT TERMS

         CableData's standard payment terms are net cash, without discount,
set-off or deferment, due and payable within thirty (30) days of the date of
invoice, or the date of postmark if the postmark date is more than one (1)
Business Day after the invoice date (collectively, the "Invoice Date"); payment
of all undisputed charges is due in U.S. dollars.  In the event that BIMS does
not render full payment of all undisputed charges within sixty (60) days of the
date payable, CableData may, after notifying BIMS, cease any and all services
hereunder until such account is brought current.  In addition, if BIMS fails to
pay all undisputed charges within thirty (30) days of the Invoice Date, BIMS
agrees that upon the expiration of a fifteen (15) day cure period following 
the effective date of written notice from CableData of such failure
to pay, CableData will have the right to invoice and BIMS will pay a late
payment service charge of one and one half percent (1.5%) per month, but not in
excess of the lawful maximum interest allowed, on the past due balance from and
after the expiration of such fifteen (15) day cure period.  Should BIMS in good
faith dispute any

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                         -16-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

portion of an invoice submitted by CableData, BIMS shall advise CableData in
writing within thirty (30) days of the Invoice Date of such dispute and pay,
when due, all non-disputed charges.  CableData will consider BIMS' dispute in
good faith.

         g.   TAXES

         BIMS agrees to pay CableData all legally due sales, use or similar
taxes in connection with the purchase of any services or tangible personal
property pursuant to the terms of this Agreement.  CableData shall separately
state all applicable sales, use or similar taxes on each invoice as prescribed
by the applicable terms of this Agreement or legal authority.  CableData shall
be legally responsible for remitting all taxes collected for BIMS to the proper
taxing authority.  In the event the taxability of any purchase under this
Agreement is disputed by a taxing authority as the result of an audit or
otherwise, CableData shall provide timely written notice to BIMS of this dispute
prior to any settlement or action on this dispute.  Notwithstanding the
foregoing, any fines, penalties or interest imposed on BIMS or CableData, unless
such fines, penalties or interest result from the actions taken by CableData at
the written direction of BIMS.  BIMS shall not be responsible for paying or
reimbursing CableData for any corporate franchise tax, capital tax, net worth
tax or taxes measured by reference to CableData's net income.

         6.   IMPLEMENTATION SCHEDULE.

              (a)  The Implementation Schedule sets forth the time(s) for
delivery of Deliverables specified in the Work Order.  Unless otherwise
specified in any individual Work Order, CableData recognizes that time and
timely performance are of the essence in this Agreement and of each Work Order
hereunder.

              (b)  Both parties will agree upon appropriate delivery dates for
the Deliverables and other milestone events including but not limited to the
estimated date for the software architecture and design Walk-thru, schedule for
conference calls initiated by CableData to provide Software Release progress and
status (in addition to those required pursuant to Section 9 (b) herein),
delivery of the Software Release Installation Plan and the date for installation
of the Software Release at BIMS' site, and the Acceptance Testing period at
BIMS' site.

              (c)  If CableData is delayed at any time during the course of its
performance under any Work Order due to acts of God or causes beyond its
reasonable control, then CableData may request


                                         -17-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

that the affected Implementation Schedule date(s) be extended.  BIMS shall
review such request and grant an extension of time commensurate with the
circumstances, subject to the following conditions:

         (i)  The cause of the delay (A) is beyond CableData's control and
              arises without its, or any of its subcontractors' or suppliers',
              fault or negligence, and (B) arises or becomes known after the
              date of execution of the applicable Work Order;

        (ii)  CableData demonstrates that the affected Implementation Schedule
              date(s) is reasonable certain to be delayed; and

       (iii)  CableData provides a written request to BIMS within five (5)
              Business Days after the time CableData knows or reasonably should
              have known of any cause or circumstances which might, under
              reasonably foreseeable circumstances, result in a delay for which
              CableData may claim an extension of time.  If CableData shall
              fail to give the foregoing notice, the right to request an
              extension for such cause may be waived.

A delay meeting all of the foregoing conditions shall be deemed an "Excusable
Delay".

              The period of any extension of time shall be only that which is
necessary to make up the time actually lost.  BIMS reserves the right to rescind
or shorten any extension previously granted if BIMS subsequently determines that
any information provided by CableData in support of its request for an extension
of time was erroneous or that there has been a material change in the facts
stated; provided, however, that such information or facts, if known, would have
resulted in a denial of the request for an Excusable Delay.  In the event of a
delay, CableData shall proceed continuously and diligently with the performance
of the unaffected portions of the applicable Work Order and/or other Work
Order(s) not affected by the delay.

         7.   ACCEPTANCE TESTING

              (a)  After CableData has certified to BIMS in writing that all of
the Deliverables associated with each Work Order have been delivered and
installed in the facility specified by BIMS for purposes of Acceptance Testing,
and that such Deliverables meet the operational, performance and integration
specifications contained herein, in the Business Requirement Specification, in
the Detailed Design Specifications, and in any applicable change request


                                         -18-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

documents, BIMS shall conduct Acceptance Testing of the System at its location
pursuant to this Section 7.  BIMS shall prepare an Acceptance Test Plan for the
Initial Work Order and shall submit such plan to CableData for approval, which
approval shall not be unreasonably withheld.  For purposes of Acceptance
Testing, performance of the Deliverable will be measured on the basis of a
commercially reasonable standard unless some other standard or specific
performance criteria are specified in the applicable Work Order.  "Acceptance"
shall be deemed to occur at the earlier of (i) that point in time at which BIMS
notifies CableData of the successful completion of the acceptance test period
provided for in this Section 7, or (ii) that point in time at which BIMS places
the Deliverables into productive use in connection with paying Subscribers (as
defined in the License Agreement).

              (b)  BIMS shall conduct its Acceptance Testing of the
Deliverables under each Work Order for a period of forty-five (45) days (the
"Initial Acceptance Test Period"), commencing (i) with respect to the
Deliverables under the Initial Work Order, as set forth in Exhibit "C" attached
hereto, upon the last to occur of (A) receipt by BIMS of CableData's
certification, as provided in subsection (a) above, with respect to such
Deliverables, or (B) November 8, 1995, and (ii) with respect to Deliverables
under Work Order(s) other than the Initial Work Order, upon receipt by BIMS of
CableData's certification with respect to each such Work Order.  Notwithstanding
the previous sentence, BIMS shall have the right to toll the running of the
forty-five (45) day Initial Acceptance Test Period at any time, and from time to
time, in connection with each Work Order hereunder, pending the delivery and
installation of third party products with which BIMS desires to test the
Deliverables hereunder; provided, however, that in no event will the running of
the Initial Acceptance Test Period under any Work Order be tolled by more 
than sixty (60) days, cumulatively. The Initial Acceptance Test Period shall 
be successfully completed, and Acceptance shall be deemed to have occurred 
with respect to the applicable Deliverables, upon notice from BIMS to 
CableData that BIMS has determined that all of the functions of the 
Deliverables have been provided and perform in accordance with the Business 
Requirement Specification, as referenced or set forth in the applicable Work 
Order, and the Detailed Design Specifications, as provided for in Section 4 
of this Agreement, including without limitation, that all reliability and 
performance standards set for herein and in the Business Requirement 
Specification and Detailed Design Specifications have been met or exceeded.  
If any of the Deliverables under a particular Work Order fail to pass the 
Initial Acceptance Test Period, BIMS shall so notify CableData in writing 
specifying the nature of such failure(s) in reasonable detail and CableData 
shall correct the specified failure(s) within

                                         -19-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

the ten (10) day period following BIMS' notice to CableData.  The parties
acknowledge and agree that BIMS' identification of failure(s) of the
Deliverables, and CableData's correction of such failures, shall be an ongoing
process throughout the Acceptance Test Period (hereinafter defined).
Accordingly, BIMS shall notify CableData periodically during the course of the
Acceptance Test Period of failure(s) of the Deliverables to conform to the
Business Requirement Specification and Detailed Design Specifications therefor,
and shall not, by any such notification, waive its right to notify CableData of
subsequent failure(s) identified during the Acceptance Test Period.

          (c)  Following CableData's certification that it has corrected all 
failures specified by BIMS to date during the Acceptance Test Period, BIMS 
shall commence another acceptance test period ("Re-Test Period") which will 
expire upon the later of (i) the expiration of the forty-five (45) day 
Initial Acceptance Test Period, or (ii) twenty (20) days after the 
commencement of the Re-Test Period. The Initial Acceptance Test Period and 
each Re-Test Period hereunder are referred to individually as an "Acceptance 
Test Period," and collectively (with respect to each Work Order) as the 
"Acceptance Test Period". The Acceptance Test Period shall be successfully 
completed, and Acceptance shall be deemed to have occurred with respect to 
the applicable Deliverables, upon notice from BIMS to CableData that BIMS has 
determined that all of the functions of the Deliverables have been provided 
and perform in accordance with the Business Requirement Specification and 
Detailed Design Specifications, including without limitation, that all 
reliability and performance standards set forth herein and therein have been 
met or exceeded.

          (d) In the event that any of the Deliverables under a Work Order fail
to pass the third or any subsequent Re-Test Period, as provided for in
subsection (c) above, CableData acknowledges that BIMS shall have the option,
upon written notice to CableData, to either (i) extend CableData's right to 
continue attempting to cure the failure(s) for a specified period of time, upon
the completion of which BIMS shall commence another Re-Test Period, or
(ii) terminate:

     (A) for Acceptance Testing associated with Work Order(s) entered into
         pursuant to this Agreement other than the Initial Work Order set forth
         in Exhibit "C" hereto, any or all Work Order(s) issued under this
         Agreement which are then in progress. Upon such termination, BIMS
         shall have the right to return the Deliverables provided for in such
         terminated Work Order(s) and receive a refund of all amounts paid under
         such terminated Work Order(s), with no

                                     -20-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

         liability on the part of BIMS to CableData for any portion of such Work
         Order(s), whether or not already ordered, performed or developed on
         BIMS' behalf; or

         this entire Agreement and the License Agreement, for (x) Acceptance
         Testing involving the Initial Work Order set forth in Exhibit "C"
         hereto and/or (y) the acceptance testing of the Core Software provided
         pursuant to the License Agreement, in the event that the failure of the
         Core Software to pass such acceptance testing involves Severity Level 1
         or 2 Defects, as defined in the Maintenance/Support Attachment to the
         License Agreement. Upon such termination, BIMS shall have the right to
         return all Deliverables provided for hereunder and under the License
         Agreement, including without limitation, the Core Software, and receive
         a refund of all amounts paid under this Agreement and the License
         Agreement, with no liability on the part of BIMS to CableData for any
         portion of the Deliverables hereunder or thereunder, whether or not
         already ordered, performed or developed on BIMS' behalf.

In any event, BIMS shall be entitled to receive such damages and remedies as
BIMS might have pursuant to this Agreement and/or the License Agreement, or at
law or in equity, including without limitation, Delay Damages pursuant to
Section 5(d) of this Agreement.

         (e) For efficiency and project management purposes, informal testing,
in addition to the Acceptance Testing provided for herein and/or in any Work
Order(s), may be conducted on a component basis at various times as the work
progresses, but neither such informal testing nor any provisional acceptance of
the results thereof by BIMS shall constitute acceptance of any aspect of the
System or any Software Release, as applicable, by BIMS or relieve CableData of
the responsibility to ensure that the System and/or such Software Release, as
a whole, successfully completes Acceptance Testing as a precondition to its
entitlement to certain payments under this Agreement.

     8.  WORK ORDERS.

     It is contemplated that BIMS will desire to have CableData develop and
furnish to BIMS, and that CableData will agree to provide to BIMS, periodic
Software Releases and other Deliverables during the term of this Agreement.
BIMS and CableData will use Work Orders, signed by both parties, as the primary
method of initiating software development and other services by CableData.

                                     -21-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

The terms and conditions of this Agreement shall apply to each such Work Order
proposed by BIMS which is accepted by CableData for the furnishing of such
software development and other services. Separate Work Orders will be created
for each Software Release. The Work Orders may include the following
information:

     1.  Business Requirement Specification

         a.   Descriptions and specifications for all custom Software
              Deliverables, including all features, functions and performance
              and integration requirements therefor. The Initial Work Order
              include a description of all Custom Work Products created pursuant
              to the Interim Services Agreement.

              i.  The foregoing description includes identification of all
                  Enhancements to be made to the Core Software.

         b.   Descriptions and specifications for all Interface Software
              Deliverables.

         c.   Identification of Documentation to be provided.

         d.   Identification of any and all other Deliverables to be provided by
              CableData.

     2.  Implementation Schedule, including without limitation, estimated dates
         for the software architecture and design Walk-thrus (i,e., resulting in
         the Detailed Design Specifications), schedule for conference calls to
         be initiated by CableData to provide Software Release progress and
         status, delivery of the Software Release Installation Plan and the
         dates for installation of the Software Release(s) at BIMS' site, and
         the Acceptance Testing periods at BIMS' site.

     3.  Designation of whether work is to be performed on a Time and Materials
         basis or pursuant to a Fixed Development Fee (with Incentive Pricing).

         a.   If Fixed Development Fee, a Milestone Payment Schedule (reflecting
              a hold-back of twenty percent (20%) pending CableData's correction
              of all defects identified during BIMS Acceptance Testing).


                                     -22-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

         b.   If Fixed Development Fee, incentive amounts for early delivery and
              Delay Damages amounts and schedules, if applicable.

         c.   If Time and Materials, Delay Damages amounts and schedules, if
              applicable.

         d.   If Time and Materials, overall price ceilings for Work Order, plus
              additional project management controls, if any, on fees and
              charges to be submitted by CableData.

         e.   Estimation of allowable expenses to be incurred by CableData, if
              any (e,g., number of trips to Atlanta, together with estimates for
              airfare, lodging, meals, etc. for each trip).

     4.  Number of days to be allocated to BIMS' Acceptance Testing of the
         System upon completion of the Deliverables associated with the Work
         Order.

     5.  Acceptance Criteria and Schedule.

Upon both parties' approval of the Work Order, the Work Order becomes
incorporated into this Agreement as an Exhibit hereto.

     9.  PROJECT MANAGEMENT; DELIVERY.

         (a)  DESIGNATION OF PROJECT COORDINATORS.  CableData shall designate a
Technical Project Manager and a Program Manager (together, the "CableData
Project Coordinators"), each of whom shall be acceptable to BIMS and assigned
by CableData to supervise the provision of the Deliverables. BIMS shall
designate a Project Manager and a Program Manager (together, the "BIMS Project
Coordinators"), each of whom shall be, assigned by BIMS to coordinate BIMS'
involvement in the work hereunder. The BIMS Project Manager shall serve as
CableData's primary point of contact for the resolution of problems. Each
Program Manager shall be responsible for obtaining the express authority
necessary to carry out his or her obligations and responsibilities hereunder,
and may assume that the other Program Manager is acting within the scope of his
or her authority. CableData and BIMS may change their Project Coordinators from
time to time upon prior written notice to the other party, subject to subsection
(d) below.

         (b)  REVIEW MEETINGS AND PROGRESS REPORTS. Every two (2) weeks, or as
often as the parties mutually agree, during the period in which CableData is
performing services hereunder, the BIMS


                                     -23-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

Project Coordinators and CableData Project Coordinators, as well as appropriate
additional personnel involved in the particular tasks under way, shall meet at
a mutually agreed upon site or arrange a conference call to discuss the progress
made by CableData and BIMS. In order to facilitate proper project management,
CableData shall provide BIMS and BIMS shall provide CableData, at each such
meeting or conference call with a progress report specifying:

          (i)   Any "critical issue" (defined as a problem that may delay the
timely achievement of a milestone event) encountered by CableData or BIMS during
the preceding two (2) week period, including without limitation, the failure of
either party or a third party to perform, any delay of either party or a third
party in performing or the inadequate performance of either party or a third
party, which  may prevent or tend to prevent CableData from completing any task
by the completion date;

          (ii)  An estimated length of any delay which may result from any
critical issues; and

          (iii) The cause of any critical issue and the specific steps taken or
proposed to be taken by CableData or BIMS as appropriate to remedy such critical
issue.

Each progress report provided by CableData and BIMS pursuant to this Section
9(b) shall include critical issues discussed and dealt with during the preceding
two (2) week period. In any event, critical issues shall be discussed and dealt
with as soon as possible after identification by CableData, BIMS or a third
party partner. In the event CableData, BIMS or any such third party partner
fails to specify in writing any critical issue with respect to a given two (2)
week period in the appropriate progress report and in such manner and at such
time as required pursuant to this Section 9(b), it shall be presumed that no
critical issue arose during such two (2) week period,

         (c)  USE OF THIRD PARTY CONTRACTORS.  CableData shall have the right to
retain third parties to furnish services to it in connection with its provision
of the Deliverables and/or to provide services to BIMS on behalf of CableData;
provided, however, that all third parties who perform work in furtherance of
CableData's obligations hereunder shall execute appropriate documents consistent
with the provisions of this Agreement undertaking obligations of confidentiality
respecting such work.

         (d)  REMOVAL OF PERSONNEL. In the event that any CableData employee
performing services hereunder is found to be unacceptable to BIMS, BIMS shall
notify CableData of such fact and

                                     -24-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

CableData shall remove said employee from performing services for BIMS and
provide a qualified replacement no later than thirty (30) days thereafter.
Except as provided for in the preceding sentence, CableData agrees to use best
efforts to ensure the continuity of CableData personnel assigned to perform
services under this Agreement. Except as provided for in the first sentence of
this subsection (d), any reassignment by CableData of those of its key employees
assigned to perform services under any Work Order must be with BIMS' prior
written consent, which consent shall not be unreasonably withheld. In the event
CableData reassigns any of its personnel assigned to perform services under this
Agreement, CableData shall promptly provide a qualified replacement acceptable
to BIMS.

         (e)  ON-SITE SUPPORT.  In addition to the provision of maintenance and
support services pursuant to Sections 15 and 16 herein, upon request by BIMS,
CableData shall identify and assign the number of CableData representatives
requested by BIMS to be on site at BIMS' facilities and shall require such
representatives to devote all of their business time during such assignment to
the technical support of the Custom Software and Interface Software and to
facilitate the support of the Core Software through CableData's customer service
and support organization.  As consideration for the provision of such on-site
support, BIMS shall pay CableData pursuant to the fully-loaded rates set forth
in Exhibit "B" hereto. All such payments due hereunder shall be invoiced by
CableData to BIMS on a monthly basis.

     10. INVENTIONS.

         (a)  In the event that the parties specifically agree in a particular
Work Order that BIMS will own the Deliverable(s) to be provided by CableData in
connection with such Work Order, CableData hereby assigns and agrees to assign
to BIMS all of CableData's and each of its employees', consultants',
representatives' and agents' ("Associates") entire right, title and interest in
and to all Inventions created in connection with such Work Order ("BIMS-Owned
Inventions"), and any and all patents that may be granted thereon in any country
of the world. In the event that the parties fail to so designate the ownership
of the Deliverable(s) in connection with a particular Work Order, such
Deliverable(s) shall be deemed to be wholly owned by CableData.

         (b)  CableData shall promptly share with BIMS all information relating
to any BIMS-Owned Inventions. With respect to such BIMS-Owned Inventions,
CableData will promptly have its Associates sign all papers and, without charge
to BIMS, do all acts which may be necessary, desirable or convenient to enable
BIMS at

                                     -25-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

its expense to file and prosecute applications for patents on such BIMS-Owned
Inventions, and to maintain patents granted thereon. CableData also agrees to
acquire from its Associates who perform work in connection with the applicable
Work Order, such assignments, rights and covenants as to assure that BIMS shall
receive the rights provided for in this Section 10. The expenses and fees for
preparing, filing and prosecuting each application or patent for a BIMS-Owned
Invention shall be borne by BIMS; provided, however, that CableData will, at its
expense, furnish BIMS with all documents, information, or other assistance, that
may be necessary for the filing and prosecution of each such application.

     11. DEVELOPED INFORMATION.

         (a)  CableData agrees to disclose and promptly furnish to BIMS any and
all Information. In tho event that the parties specifically agree in a
particular Work Order that BIMS will own the Deliverable(s) to be provided by
CableData in connection with such Work Order, BIMS shall own all right, title
and interest in and to the Information created under such Work Order ("BIMS-
Owned Information"), including all copyrights and proprietary rights therein.
CableData expressly acknowledges that the parties have agreed that all aspects
of the BIMS-Owned Information and all work in process in connection therewith
are to be considered "works made for hire" within the meaning of the Copyright
Act of 1976, as amended (the "Act"), and that BIMS is to be the "author" of such
BIMS-Owned Information within the meaning of such Act. All such copyrightable
BIMS-Owned Information, as well as all copies of such BIMS-Owned Information in
whatever medium fixed or embodied, shall be owned exclusively by BIMS as its
creation, and CableData hereby expressly disclaims any interest in any of them.

         (b)  In the event (and to the extent) that any BIMS-Owned Information
created by CableData hereunder or any part or element thereof is found as a
matter of law not to be a "work made for hire" within the meaning of the Act,
CableData hereby conveys and assigns to BIMS the sole and exclusive right, title
and interest in the ownership to all such BIMS-Owned Information, and all
copies of any of them, without further consideration, and agrees to assist BIMS
to register, and from time to time to enforce, all copyrights and other rights
and protections relating to the BIMS-Owned Information created hereunder in any
and all countries. CableData shall place a copyright notice in favor of BIMS on
the BIMS-Owned Information at BIMS' request.

         (c)  With respect to BIMS-Owned Information, CableData agrees to
execute and deliver all documents requested by BIMS in connection with the
foregoing assignments, and irrevocably

                                     -26-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

designates and appoints BIMS its agent and attorney-in-fact to act for and in
its behalf and stead to execute, register and file any such copyright
applications, and to do all other lawfully permitted acts to further the
registration of copyrights or similar protections with the same legal force and
effect as if executed by CableData.

    12. UNRESTRICTED LICENSE.

        (a) In conjuction with the parties' agreement to the Business 
Requirement Specifications for all software Deliverables to be provided by 
CableData in connection with the applicable Work Order as modified by the 
parties in conjunction with their agreement to the Detailed Design 
Specifications therefor, and as part of the consideration for BIMS's payment 
of Development Fees hereunder, CableData hereby grants and agrees to grant to 
BIMS an unrestricted, paid-up, perpetual, irrevocable, non-exclusive license 
to use, distribute, copy, display, modify, enhance and create derivative 
works based upon the Information and Inventions associated with such 
Deliverables. Such license in favor of BIMS shall include the royalty-free 
right to sublicense any or all aspects of the Information and Inventions 
(including derivative works thereof) to third parties, without any duty on 
the part of BIMS to account to CableData for any income or compensation BIMS 
receives for any such sublicensing or distribution to third parties. The 
foregoing license in this subsection (a) shall not apply to CableData's 
pre-existing application libraries, pre-existing system libraries, third 
party libraries, source code to pre-existing application programs, or the 
development environment used to create "Pre-existing Materials" (hereinafter 
defined).

        (b) In furtherance of CableData's grant to BIMS of the license 
described above, CableData shall provide to BIMS Source Code for the Software 
Deliverables, together with the program executables which are derived from 
the linking of the software Deliverables and CableData's pre-existing 
application libraries, pre-existing system libraries and various third party 
libraries. CableData shall not be required to make available to BIMS, as a 
separate deliverable hereunder, a copy of CableData's pre-existing 
application libraries, pre-existing system libraries or any third party 
libraries. CableData hereby grants and agrees to grant to BIMS an 
unrestricted, royalty-free, run-time license to use, copy, distribute, 
display and perform the program executables which are derived from the 
linking of the software Deliverables and CableData's pre-existing application 
libraries, pre-existing system libraries and various third party libraries. 
The license so granted to BIMS includes the right to grant to BellSouth 
Corporation and any subsidiary or other affiliate to BellSouth




   
    


                                     -27-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.

<PAGE>


Corporation, unrestricted, royalty-free licenses to use, copy, distribute, 
display and perform the program executables which are derived from the 
linking of the software Deliverables and CableData's pre-existing application 
libraries, pre-existing system libraries and various third party libraries.

        (c) In addition to the foregoing, CableData shall provide to BIMS, 
and to any third party designated by BIMS, at no additional charge to BIMS or 
any such third parties, copies of that object library specially created for 
BIMS pursuant to this Agreement, or derived from the APIs created for BIMS 
pursuant to this Agreement, which contains the necessary APIs for BIMS' and 
such third parties' applications to interface and interact with the System, 
including without limitation, the Core Software. CableData grants and agrees 
to grant to BIMS, and to any third party designated by BIMS, an unrestricted, 
royalty-free license to use, copy, distribute, display and perform such 
library. The parties understand and acknowledge that this libary was created 
by CableData to operate BIMS' Operating Environment (as defined in the 
License Agreement) and may not work in a third party's environment without 
modifications. Any such modifications would be subject to a Work Order to be 
mutually agreed to by the parties. In no event shall CableData be required to 
provide to BIMS or any third parties designated by BIMS libraries for APIs 
that have not been developed specifically for BIMS under this Agreement, or 
derived from APIs created for BIMS under this Agreement.

        (d) If the exercise of BIMS' rights under the licenses granted in 
Sections 12(a), (b) and (c) above requires the use of inventions or materials 
previously made, developed or copyrighted by CableData or others, and not 
originated or developed hereunder (the "Pre-existing Materials"), then 
CableData, to the extent that it has the right to do so, shall also make 
available to BIMS such Pre-existing Materials, in object code or other form, 
as may be required, but only to the extent necessary for BIMS to exercise 
such rights. CableData shall not be required to make available to BIMS, as a 
separate deliverable, a copy of CableData's pre-existing application 
libraries, pre-existing system libraries, third party libraries, source code 
to pre-existing application programs, or the development environment used to 
create Pre-existing Materials. CableData grants and agrees to grant to BIMS 
an unrestricted, royalty-free license to use, copy, modify, distribute, 
display and perform the inventions, information or other aspects of the 
Pre-existing Materials, as described above. The license so granted to BIMS 
includes the right to grant to BellSouth Corporation and any subsidiary or 
other affiliate of BellSouth Corporation unrestricted, royalty-free licenses 
to use, copy, modify, distribute, display and perform the inventions, 
information and



   
    


                                     -28-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>


other aspects of the Pre-existing Materials, but only to the extent necessary 
to use, copy, modify, distribute, display and perform the software 
Deliverables. Nothwithstanding the foregoing, BIMS' use of the Core Software 
will be governed by and subject to the terms and conditions of the License 
Agreement between the parties.

     13. CONFIDENTIALITY.
         (a)  CableData acknowledges that in the course of providing the
Deliverables it may have access to BIMS's Trade Secrets and Confidential
Information. Accordingly, CableData agrees that (i) during the term of this
Agreement and after the termination or expiration hereof, CableData will not,
except as expressly authorized or directed by BIMS, use, copy, or disclose, or
permit any unauthorized person access to, any Trade Secrets, and (ii) during the
term hereof and for a period of three (3) years after the termination or
expiration of this Agreement, CableData will not use, copy, or disclose, or
permit any unauthorized person access to, any Confidential Information.

         (b)  Upon BIMS' request and in any event upon the termination or
expiration of this Agreement, CableData will deliver to BIMS all memoranda,
notes, records, tapes, documentation, disks, manuals, files or other documents,
and all copies thereof, concerning or containing Confidential Information or
Trade Secrets that are in CableData's possession. Further, CableData shall
ensure that upon the termination or expiration of this Agreement all Trade
Secrets and Confidential Information are purged from CableData's computer
memory.

         (c)  BIMS acknowledges that the Core Software is provided in confidence
and is a trade secret of CableData and will be so protected by BIMS, as required
by the License Agreement between BIMS and CableData.

     14. WARRANTIES AND REPRESENTATIONS.

     CableData hereby warrants and represents to BIMS as follows:

         (a)  The content of the Proposal, which was relied upon by BIMS in
entering into this Agreement, was true and accurate and contained no material
omissions or misrepresentations as of the date of the Proposal and, except for
changes that have been made to the software components, estimated costs of
software development and professional fees, and except as otherwise expressly
set forth herein, remains true and accurate and contains no material omissions
or misrepresentations as of the date hereof. The Proposal is hereby incorporated
herein by this reference and shall

   
    


                                     -29-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

constitute part of this Agreement as if fully set forth herein. To the extent of
any conflict between the terms and conditions of this Agreement, including the
Exhibits attached hereto, and the terms and conditions of the Proposal, the
terms and conditions of this Agreement shall control.

         (b)  The work to be performed hereunder shall conform to generally
accepted standards for software in the software development field. Any services
performed by CableData which are determined by BIMS to be of less than these
standards or which contain errors or defects shall be corrected by CableData
without additional charge during the Warranty Period (hereinafter defined).

         (c)  The Deliverables will contain only (i) original material created
by CableData or (ii) material which has been properly licensed from third
parties and has been used by CableData in accordance with the licenses for such
materials, provided that the inclusion of all such third party materials shall
have been agreed to by BIMS.

         (d)  The Deliverables are original works, and CableData has not entered
into any contract or agreement which would prohibit or affect this Agreement to
BIMS' detriment.

         (e)  The Custom Software has not been nor will it be assigned,
transferred or otherwise encumbered, and none of the Deliverables, and no
portion thereof, infringes any patents, copyrights, trade secrets, or other
proprietary rights of any third party, and CableData has no reason to believe
that any such infringement or claims thereof could be made by anyone.

         (f)  CableData has obtained all necessary rights and licenses to 
third party materials included in the Deliverables to enable BIMS to use the 
Deliverables for any purpose and for no additional charge beyond the amounts 
expressly set forth in this Agreement or in the License Agreement, and has 
provided, or will upon BIMS' request provide, to BIMS copies of documents 
granting all such rights and licenses.

         (g)  CableData is aware that BIMS is relying on its skill and 
judgment in providing the Deliverables. CableData believes that it has been 
made generally aware of BIMS' documented business requirements and intended 
uses for the Deliverables, as more clearly described in the Business 
Requirement Specification, and, based upon such belief, CableData warrants 
that the Deliverables shall satisfy such requirements and will be fit for 
such intended uses.

                                     -30-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

         (h)  Neither the Custom Software nor the Interface Software contains
nor will contain any Self-Help Code or any Unauthorized Code, and CableData
agrees to ensure against any data lost as a result of same.

         (i)  If the Custom Software or Interface Software contains
authorization codes allowing access to a database or other software system,
CableData warrants that such codes shall be perpetual and non-expiring.

         (j)  For a period commencing upon Acceptance, pursuant to Section 7
hereof and/or the associated Work Order(s), as applicable, and ending ninety
(90) days thereafter (the "Warranty Period"), and for the period during which
CableData is providing continuing support for the Custom Software and the
Interface Software pursuant to Section 16 below and the License Agreement (the
"Support Period"), the Custom Software and Interface Software shall perform as
described in the Business Requirement Specification and in the Detailed Design
Specifications when operated within the operating environment identified or
described in the Operating Environment Attachment to the License Agreement, as
supplemented by Work Orders agreed to by the parties in accordance with the
terms of this Agreement. Except as otherwise provided herein, CableData does not
warrant:

          (i) that the Custom Software and Interface Software will run properly
              on all hardware,

         (ii) that the Custom Software and the Interface Software will operate
              in the combination of hardware/software which may be independently
              selected by BIMS, or

        (iii) that the use of the Custom Software and Interface Software will be
              uninterrupted or error-free.

During the Warranty Period, CableData shall correct such defects identified by
BIMS at no additional cost to BIMS, and shall respond to and resolve problems
with the Custom Software and Interface Software in accordance with the
procedures set forth in the License Agreement, at no additional cost to BIMS.

         (k)  During the Warranty Period and subsequent Support Period, the Core
Software and the Custom Software shall be compatible with each other without
degraded System response time, except as set forth in the Work Order and the
License Agreement. CableData further warrants that during the Warranty Period
and subsequent Support Period, the Custom Software will interface with

                                     -31-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

all foreign and ancillary systems existing at BIMS and/or being provided to BIMS
by third parties (including Sybase, Inc.), as identified in the Business
Requirement Specification, without degrading response time and without breaching
any of the warranties set forth in this Agreement.

        (l)   Each of CableData's employees, agents, representatives or
subcontractors assigned to perform any work hereunder shall have the proper
skill, training and background so as to be able to perform in a competent and
professional manner, and all work will be so performed.

         (m)  The Warranties set forth in this Section 14 will not apply if
malfunctions of Custom Software occur as a result of (i) natural disasters,
including fire, flood or lightning, (ii) armed conflict or civil disturbance,
(iii) electrical fluctuations or failures, (iv) gross neglect or intentional
misuse of the Custom Software products, (v) corrections or modifications to the
Custom Software not provided by or approved in writing by CableData or (vi) the
failure to install promptly a correction provided by CableData.

         (n)  EXCEPT AS PROVIDED IN THIS AGREEMENT OR IN THE LICENSE AGREEMENT,
NO WARRANTY, EXPRESS OR IMPLIED, INCLUDING, WITHOUT LIMITATION, WARRANTY OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, IS MADE WITH RESPECT TO
THE PRODUCTS AND SERVICES PROVIDED HEREUNDER. THE WARRANTIES SET FORTH HEREIN
APPLY ONLY TO THE CUSTOM SOFTWARE AND INTERFACE SOFTWARE AS PROVIDED TO BIMS BY
CABLEDATA OR AS SUCH CUSTOM SOFTWARE AND/OR INTERFACE SOFTWARE IS MODIFIED BY
CABLEDATA, AND DO NOT EXTEND TO THE CUSTOM SOFTWARE AS MODIFIED BY BIMS OR A
THIRD PARTY WITHOUT CABLEDATA'S WRITTEN APPROVAL.

     15. CUSTOM SOFTWARE SUPPORT. During the Warranty Period, CableData shall do
the following without additional charge to BIMS:

         (a)  Promptly notify BIMS of any defects or malfunctions in the Custom
Software and/or Interface Software of which it learns from any source, correct
any such defects or malfunctions and provide BIMS with corrected copies of same;

         (b)  Promptly provide to BIMS copies of the Custom Software and/or
Interface Software revised to reflect any enhancements to the Core Software made
by CableData, or to any other software or systems with which the Custom
Software interfaces (e,g., software provided to BIMS by Sybase, Inc.), as
identified in the Business Requirement Specification;

                                     -32-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

         (c)  Twenty-four (24) hours per day, seven (7) days per week, provide
to BIMS all telephone (toll-free in the United States) or written consultation
requested by BIMS in connection with its use and operation of the Core Software,
Custom Software and Interface Software, or any problems therewith;

         (d)  Remedy any services performed by CableData which are determined by
BIMS to be of less than the highest professional quality; and

         (e)  Respond to and resolve problems with the Custom Software and/or
Interface Software identified by BIMS in accordance with the response time
hierarchy included in the License Agreement.

     16. CONTINUING SUPPORT OF CUSTOM SOFTWARE.

     Effective upon the expiration of the Warranty Period, CableData shall
provide maintenance, additional support and enhancements in connection with the
Custom Software and the Interface Software pursuant to the terms of the License
Agreement at no cost to BIMS for a period of [*]. At the end of such [*] 
CableData will provide BIMS a price quote for continued support of the Custom 
Software and Interface Software. Post-Warranty support shall include, but not 
be limited to, revisions to the Custom Software and/or Interface Software 
which are necessary to enable the Custom Software and/or Interface Software to 
continue to operate with the enhancements, updates or revisions to the Core 
Software and to the other software and systems with which the Custom Software 
interfaces (e.g., software provided to BIMS by Sybase, Inc.), as identified in 
the Business Requirement Specification. In addition, such post-warranty support
shall include the provision by CableData to BIMS, upon request by BIMS, of 
revisions to the Custom Software and Interface Software, in both Source Code 
and object code form, as necessary to enable BIMS to fully utilize new features
and functionality that may have been added to the Core Software. The 
Unrestricted License, as provided for in Section 12 above, shall apply to all 
revisions to the Custom Software and Interface Software provided to BIMS 
hereunder.

     17. INDEMNITY.

         (a)  CableData shall indemnify, defend and hold BIMS and its
Affiliates, and their respective officers, directors, agents and employees,
harmless from and against any and all liabilities, damages, losses, expenses,
claims, demands, suits, fines or judgments, including reasonable attorneys'
fees, and costs and expenses incidental thereto, which may be suffered by,
accrued


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                     -33-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

against, charged to or recoverable from BIMS or any of its Affiliates, or any of
their respective officers, directors, agents or employees, arising out of a
claim that any Deliverable or any portion thereof infringes or misappropriates
any United States or foreign patent, copyright, trade secret or other
proprietary right. CableData shall have no liability to BIMS for any
infringement action or claim which is based upon or arises out of: (i) any
modification of the Deliverables by BIMS without the express written permission
of CableData; or (ii) any use of the Deliverables in combination with any other
system, equipment or software which is not furnished by CableData or approved by
CableData in writing.

         (b)  CableData shall indemnify, defend and hold BIMS and its
Affiliates, and their respective officers, directors, agents and employees,
harmless from and against any and all liabilities, damages, losses, expenses,
claims, demands, suits, fines or judgments, including reasonable attorneys'
fees, and costs and expenses incidental thereto, which may be suffered by,
accrued against, charged to or recoverable from BIMS or any of its Affiliates,
or any of their respective officers, directors, agents or employees, arising out
of or resulting from (i) claims of bodily injury, including death, or loss or
damage to property or physical destruction of property arising out of or in
connection with any act, error or omission of CableData or any of its officers,
directors, agents, representatives, employees and subcontractors, during the
performance of this Agreement; (ii) intentional acts or gross negligence on the
part of CableData or any of its agents, representatives, employees or
subcontractors in the course of its performance under this Agreement, or (iii) a
reclassification or attempt to reclassify CableData or any of CableData's
employees, agents, representatives or subcontractors as an employee of BIMS or
any of its Affiliates, including, without limitation, any tax liability
(including interest and penalty) resulting from BIMS' or any of its Affiliates'
failure to pay, deduct or withhold income taxes, Federal Insurance Contribution
Act taxes, or Federal Unemployment Tax Act taxes with respect to CableData or
any of its employees, agents, representatives or subcontractors.

     (c)  CableData's duty to indemnify BIMS hereunder shall include all
attorneys' fees which BIMS reasonably incurs in connection with the defense of
any claims covered by this Section 17 and all settlement costs, except as
otherwise provided in this Section 17. Promptly after receipt by BIMS of a
threat of any action, or a notice of the commencement or filing of any action
against which BIMS may be indemnified hereunder, BIMS shall give notice thereof
to CableData, provided that failure to give or delay in giving such notice to
CableData shall not relieve CableData of

                                     -34-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

any liability it may have to BIMS hereunder except to the extent that CableData
demonstrates that the defense of such action is prejudiced thereby. CableData or
CableData's attorney(s) shall keep BIMS reasonably apprised of the continuing
status of the claims covered by this Section 17, including any lawsuits
resulting therefrom, and shall permit BIMS, upon BIMS' written request, to
participate in the defense or settlement of any such claim, provided that
CableData shall have no obligation to indemnify for, be bound by or otherwise
incur any liability with respect to, any settlement terms to which it has not
agreed. CableData shall assume the cost of defending against any such claim and
shall select the attorney(s) to defend them against such claim subject to BIMS'
approval, which shall not be unreasonably withheld.

     18. TERMINATION.

         (a)  Either party may terminate this Agreement at any time in the event
of a material breach of the terms hereof by the other party if such party shall
fail to cure such material breach within thirty (30) calendar days of receipt of
written notice thereof.

         (b)  BIMS may terminate this Agreement:

              (i)  upon written notice to CableData in the event that:

                   (A) BIMS terminates the License Agreement pursuant to the
                       terms thereof;

                   (B) BIMS reasonably rejects the Detailed Design
                       Specifications prepared pursuant to Section 4 hereof, for
                       the Initial Work Order set forth in Exhibit "C" hereto;

                   (C) CableData fails to deliver the version of the System
                       which includes the Software Releases prepared in
                       connection with the Initial Work Order set forth in
                       Exhibit "C" hereto within sixty (60) days of the delivery
                       date set forth in the Implementation Schedule; or

                   (D) the version of the System which includes the Software
                       Releases prepared in connection with the Initial Work
                       Order set forth in Exhibit "C" hereto fail to pass
                       Acceptance Testing, as more

                                     -35-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

                       particularly described in Section 7 hereof; or

              (ii) without cause upon seven (7) calendar days prior written
                   notice to CableData, in which event BIMS shall pay CableData
                   for CableData's development work hereunder through the
                   effective date of termination on a Time and Materials basis,
                   to be determined in accordance with Exhibit "B," up to the
                   amount of the unpaid portion of the Development Fee
                   associated with the development work performed through the
                   effective date of termination.

         (c)  BIMS may terminate any Work Order entered into pursuant to this
              Agreement:

              (i)  upon written notice to CableData in the event that:

                   (A) BIMS reasonably rejects the Detailed Design
                       Specifications prepared pursuant to Section 4 hereof with
                       respect to such Work Order;

                   (B) CableData fails to deliver the version of the System
                       which includes the Software Release prepared in
                       connection with such Work Order within sixty (60) days of
                       the delivery date set forth in the Implementation
                       Schedule set forth in the Work Order; or

                   (C) the version of the System which includes the Software
                       Release prepared in connection with such Work Order fails
                       to pass Acceptance Testing, as more particularly
                       described in Section 7 hereof and/or in such Work Order.

         (d)  In the event of termination pursuant to subparagraph (b)(i)(B) or
(b)(i)(C) of this Section, then BIMS shall have the option to either (i) return
to CableData all Deliverables under the Initial Work Order, upon reimbursement
by CableData of all amounts paid by BIMS in connection with such terminated
System or Work Order, or (ii) retain all such Deliverables in lieu of any
reimbursement by CableData of any amounts paid by BIMS in connection with the
Initial Work Order, and pursue such other

                                     -36-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

damages and remedies as BIMS might have pursuant to this Agreement and/or the
License Agreement, or at law or in equity, including without limitation, Delay
Damages pursuant to Section 5(d) of this Agreement. In the event of termination
pursuant to subparagraph (c)(i)(A) or (c)(i)(B) of this Section, then BIMS shall
have the option to either (i) return to CableData all Deliverables related to
the terminated Work Order, upon reimbursement by CableData of all amounts paid
by BIMS in connection with such terminated Work Order, or (ii) retain all such
Deliverables in lieu of any reimbursement by CableData of any amounts paid by
BIMS in connection with such terminated Work Order, and pursue such other
damages and remedies as BIMS might have pursuant to this Agreement, or at law or
in equity, including without limitation, Delay Damages pursuant to Section 5(d)
of this Agreement. In the event of termination pursuant to subparagraph
(b)(i)(D) or (c)(i)(C) of this Section, then BIMS shall have the rights set
forth in Section 7(d) of this Agreement.

         (e)  Any termination of this Agreement or any Work Order by BIMS shall
be in addition to any and all other legal or equitable remedies which may be
available to BIMS.

     19. COORDINATION AND COOPERATION WITH OTHER CONTRACTORS/CONTENT PROVIDERS.

         (a)  Throughout the term of this Agreement, other contractors and
persons (including personnel of BIMS) may be required to render services in or
install equipment or software at BIMS' facilities, including, but not limited
to, Sybase, Inc., Hewlett-Packard Company and Scientific-Atlanta Inc. BIMS
reserves the right to permit and put such other contractors and persons to work
and to afford them access to such facilities at such times and under such
conditions as do not unreasonably interfere with CableData. CableData shall
perform continuously and diligently and shall so conduct and coordinate its
aspects of this Agreement so as to minimize interference with such other work.
Upon CableData's receipt from BIMS of written notification as set forth in the
License Agreement, CableData shall also cooperate with BIMS in providing such
information and assistance as requested by BIMS for such coordination in a
timely manner, subject to the provisions of Paragraph 6(b) of the License
Agreement. If BIMS determines that CableData is failing to coordinate its work
with the work of other contractors engaged by BIMS or is failing to cooperate
with such contractors, then CableData shall be responsible for all damages,
costs and expenses suffered or incurred by BIMS by reason of CableData's
failure.

                                     -37-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

         (b)  Throughout the term of this Agreement, certain Content Providers
and other third party contractors and/or providers of related products and
services will be required to configure and/or develop the necessary software in
order to deliver their products and services over BIMS's broadband network, the
usage of which products and services may be tracked by and/or maintained within
the System. Upon written notification from BIMS, CableData shall cooperate with
the Content Providers and such third parties in providing such information and
assistance as is necessary for such persons or entities to configure and/or
develop the necessary software in a timely manner, subject to the provisions of
Paragraph 6(b) of the License Agreement. CableData acknowledges and agrees that
the injury that BIMS will suffer in the event of CableData's breach of the
foregoing covenant cannot be compensated by monetary damages alone, and
CableData therefore agrees that BIMS, in addition to and without limiting any
other remedies or rights which it may have either under this Agreement or
otherwise, shall have the right to obtain injunctive or other equitable relief
against CableData, from any court of competent jurisdiction, enjoining any such
breach.

     20. RELATIONSHIP OF PARTIES.

     CableData acknowledges, agrees, represents and warrants that it is and has
been engaged as an independent contractor, and not as an employee, of BIMS, and
nothing in this Agreement shall be construed as creating an employer-employee
relationship or any partnership or joint venture between BIMS and CableData.
CableData shall be responsible for payment of all federal, state and local taxes
arising out of CableData's and its agents', representatives' and subcontractors'
activities, including by way of illustration, but not limited to, federal and
state income taxes, social security taxes, unemployment insurance taxes, where
applicable, and business license fees, where required. CableData shall not incur
any liability on behalf of BIMS or in any way represent or bind BIMS in any
manner or thing whatsoever and nothing herein shall be deemed to make either
party the agent or legal representative of the other.

     21. REGULATORY AUTHORITY.

     BIMS' provision of services in connection with the broadband trial will be
subject to the provisions of the order(s) of the Federal Communications
Commission ("FCC") approving BellSouth Telecommunications Inc.'s application for
authority to conduct the trial. ("214 Application") and applicable tariffs. BIMS
and its affiliates shall use reasonable efforts to pursue any regulatory and
local authority required to perform the broadband trial. BIMS

                                     -38-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

may terminate this Agreement if it or its affiliates are unable to obtain the
required approvals and authority. Any such termination shall be as set forth in
this Agreement, and shall be without any further charge, obligation and/or
liability on the part of BIMS to CableData.

     22. ASSIGNMENT TO VANGUARD.

     In addition to BIMS' assignment rights under this Agreement, including
without limitation, BIMS' right to assign this Agreement to one or more
Affiliates, BIMS shall have the right to assign its rights and delegate its
duties under this Agreement either in whole or in part, at any time and without
CableData's consent, to Vanguard Cable Corp. ("Vanguard"). BIMS shall give
CableData written notice of such assignment or delegation. Upon the written
notice to CableData and receipt by CableData of Vanguard's written assumption of
rights and obligations under this Agreement, BIMS shall be released and
discharged, to the extent of the assignment, from further duties under this
Agreement.

     23. GENERAL.

         (a)  INSURANCE. CableData shall procure and maintain for itself and its
employees all insurance coverages as required by federal or state law, including
worker's compensation insurance. CableData also agrees to maintain (a) insurance
in the minimum amount of [*] comprehensive general liability coverage,
including blanket contractual liability, broad form property damage, and
products completed operations coverage, and naming BIMS as an additional
insured, and (b) insurance in the minimum amount of [*] coverage of
software errors and omissions, including services rendered and intellectual
property infringement claims, with respect to the computer software developed
hereunder. CableData shall furnish to BIMS a certificate of insurance evidencing
such coverage. Said certificate will include a provision whereby fifteen (15)
calendar days notice must be received by BIMS prior to coverage change or
cancellation by either CableData or the insurer. CableData waives its rights of
subrogation against BIMS.

         (b)  GOVERNING LAW. This Agreement shall be governed by and construed
in accordance with the laws of the State of Georgia. The parties agree that the
exclusive jurisdiction for any action relating to this Agreement shall be a
federal or state court in Atlanta, Georgia and the parties hereby consent to
such jurisdiction.


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                     -39-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

         (c)  ANNOUNCEMENTS. CableData shall not use the name of or refer to
BIMS, BellSouth or any of their affiliates directly or indirectly in any
advertisement, press release or professional or trade publication without
receiving prior written approval from BIMS.

         (d)  NOTICES.  Any notice given pursuant to this Agreement shall be in
writing and shall be given by personal service, express courier (such as UPS),
telecopy, or by United States certified mail, return receipt requested, postage
prepaid to the addresses set forth below, or such other address as changed
through written notice to the other party.

    If to BIMS:

         BellSouth Interactive Media Services
         1100 Abernathy Road, Suite 414
         500 NorthPark Town Center
         Atlanta, Georgia 30328
         Attn: Larry E. Ryan
         Telecopy: (770) 481-2959

         With a copy to BIMS General Counsel (same address)
         Telecopy: (770) 673-2886

    If to CableData:

         CableData, Inc.
         2969 Prospect Park Drive
         Rancho Cordova, California 95670-6006
         Attn: Barry Madrid and Bob Archibald
         Telecopy: (916) 636-5750

         With a copy to CableData's General Counsel (same address)
         Telecopy: (916) 636-4561

Notice given by personal service shall be deemed effective on the date it is
delivered, notice sent by express courier shall be deemed effective one
Business Day after dispatch, notice given by telecopy shall be deemed effective
on the date of transmission, and notice mailed shall be deemed effective on the
third Business Day following its placement in the mail.

         (e)  CAPTIONS. The Captions appearing in this Agreement have been
inserted as a matter of convenience and in no way define, limit or enlarge the
scope of this Agreement or any of the Sections hereto.


                                        -40-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

         (f)  NO WAIVER. The failure of either party at any time to require
performance by the other party of any provision of this Agreement shall in no
way affect that party's right to enforce such provisions, nor shall the waiver
by either party of any breach of any provision of this Agreement be taken or
held to be a waiver of any further breach of the same provision.

         (g)  SEVERABILITY. In the event that any one or more of the provisions
of this Agreement is determined by a court of competent jurisdiction to be
invalid, unenforceable or illegal, such invalidity, unenforceable or illegality
shall not affect any other provisions of this Agreement and the Agreement shall
be construed as if the challenged provision had never been contained herein. 
The parties further agree that in the event such provision is an essential part
of this Agreement, they will immediately begin negotiations for a suitable
replacement provision.

         (h)  ASSIGNMENT. It is understood and agreed by the parties that the
services of CableData are unique and personal in nature and CableData shall not
delegate or assign all or any portion of its required performance to any other
individual, firm or entity without the express written consent of BIMS.

         (i)  SURVIVAL.  The provisions of Sections 10, 11, 12, 13, 17 and 20,
of this A Agreement shall survive the expiration or other termination of this
Agreement.

         (j)  REMEDIES.  The rights and remedies of BIMS set forth in this
Agreement are not exclusive and are in addition to any other rights and remedies
available to it at law or in equity.

         (k) BINDING EFFECT. This Agreement shall be binding upon and shall
inure to the benefit of the respective parties hereto, their respective
successors-in-interest, legal representatives, heirs and assigns.

         (1)  AMENDMENT OR MODIFICATION.  No amendment to or modification of
this Agreement shall be binding upon any party unless such amendment or
modification is reduced to writing, dated and executed by the parties to this
Agreement.

         (m) MULTIPLE COUNTERPARTS.  This Agreement may be executed, in
counterparts, all of which taken together shall constitute one single agreement
between the parties.

         (n)  PERSONNEL RULES AND REGULATIONS. While on BIMS" premises,
CableData representatives will comply with all security practices and procedures
generally prescribed by BIMS.  In

                                        -41-
December 21, 1995
                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

addition, unless otherwise agreed to by the parties, CableData representatives
shall observe the working hours, working rules, holiday schedules and policies
of BINS while working on BIMS' premises.

         (o)  ENTIRE AGREEMENT. This Agreement constitutes and expresses the
entire agreement and understanding between the parties in reference to all
matters referred to herein, and any and all previous agreements, discussions,
promises, representations, and understandings between the parties relative
thereto, including without limitation, the Interim Services Agreement, are
merged herein and superseded hereby, except that BIMS shall continue to have the
benefit of all provisions of prior agreements protecting the confidentiality of
and the proprietary rights of BIMS in and to
its materials.

         (p)  EXHIBITS. The following exhibits are attached to
this Agreement     and incorporated herein by reference:

              Exhibit "A" - Software Change Management Plan 
              Exhibit "B" - CableData Development and Consulting
                             Fee Schedule
              Exhibit "C" - Initial Work Order
              Exhibit "D" - Work Order No. 2

    IN WITNESS WHEREOF, the parties have executed this Agreement as of the day
and year first above written.

:_______________________________________

BELLSOUTH INTERACTIVE MEDIA SERVICES, INC.       CABLEDATA, INC.


BY: /S/ JAMES R. GADD                            BY: /S/ JERRY JOHNSON
        --------------                                    -------------  
NAME PRINTED: JAMES R. GADD                      NAME PRINTED: JERRY JOHNSON
             --------------                                    -------------
TITLE: PRESIDENT                                 TITLE: VICE PRESIDENT
       ---------                                        --------------
DATE: DECEMBER 22, 1995                          DATE: DECEMBER 27, 1995
      -----------------                                -----------------



                                        -42-
December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>


                                                                EXHIBIT A

                                BELLSOUTH - CABLEDATA
                           SOFTWARE CHANGE MANAGEMENT PLAN

SCOPE

The Software Change Management Plan ("SCM") covers changes to the Business
Requirement Specification and Detail Design Documents.  Managing and correcting
trouble reports are out of the scope of this document.


SOFTWARE CHANGE MANAGEMENT OBJECTIVES


    -    Control, manage and evaluate changes to the various development phases
         of the project (requirements, design, development) that occur after
         baseline requirements are approved.

    -    Establish responsibilities for carrying out change management
         functions.

    -    Identify requirements that will be controlled.

    -    Establish change management procedures.
                                           
    -    Manage approved changes into specific release schedules.
    
    -    Develop a status reporting procedure.
         
    -    Have only one official requirements document.
         
    -    Control, manage and evaluate maintenance changes in production.

DEFINITION OF TERMS

Change Control means the ability to manage change, (to specifications and
systems), in an ordered means.  Change Control is a procedure which will be
adhered to rigorously, to ensure changes are not lost, or inappropriate or
disruptive to current schedules.

Configuration management means the ability to hold different versions of the
system simultaneously, and reproduce a version at a moments notice.  It also
refers to controlling the version upon which new coding appropriately take
place.

Control procedures means written processes that Control how change is introduced
into the project.


VERSION CONTROL

A baseline is established on documentation when a document has been approved. 
The approved baseline version for all documents is 1.0. Subsequent versions of
Business Requirement Specification and Detail Design Documents will be numbered
and dated, e.g., 1.1 (2-1-95).  The Project Director at CABLEDATA will maintain
these documents.


December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>


To become an official request, a Requirement/Design Change Request and
Evaluation Form (DCR) (see attached) must be completed and sent to the Review
Team.  Informal change requests, such as those made in meetings or between users
and CABLEDATA staff, must be followed up and documented by completing a
Requirements/Design Change Request and Evaluation Form.  BIMS will have
responsibility for initiating and managing the Software Change Management
Process.

CHANGE REQUEST CLASSIFICATION-ENHANCEMENTS AND NEW DEVELOPMENT

1. Mandatory.
Change must be made to accommodate regulatory requirements, correct a system
design failure, implement a BellSouth corporate policy, etc.

2. New Market or Functional Necessity
Change is required for system to meet existing or anticipated marketing
requirements or represent a successful competitive entry in the market.  System
technical design contains elements that are inconsistent, new products (HW/SW)
are being added require system modifications, etc.  Change will improve
productivity, profitability, etc.

3. Discretionary development and enhancements

Change is desirable for system consistency, appearance, performance,
reliability, or other reason - but is not necessary immediately.

4. Administrative/wish list

Typos, document structure, "wish lists" to be recorded for future consideration,
etc.


CONTROL PROCEDURES

a) BIMS AND CABLEDATA PROJECT MANAGERS WILL EXAMINE THE NEED FOR NEW OR CHANGED
REQUIREMENTS OR DESIGN.
Contact likely effected paws about the desired change and the resulting scope of
ramifications.

b) IF THE CHANGE IS DETERMINED TO BE DESIRABLE, BIMS PROJECT MANAGER WILL
COMPLETE A REQUIREMENTS/DESIGN CHANGE REQUEST AND EVALUATION FORM (DCR).

Fill out a softcopy version of the DCR form, including all descriptive, category
and classification elements. Fill out list of effected vendors/components, if 
known. Consider what & who the proposed change will effect.

d) SUBMIT THE DCR TO THE BELLSOUTH REQUIREMENTS COORDINATOR ("GATEKEEPER")
Print a hardcopy version, and provide both hardcopy and softcopy to the
BellSouth Requirements Coordinator ("Gatekeeper").

e) GATEKEEPER WILL LOG REQUEST AND BEGIN REVIEW PROCESS
Gatekeeper will assign a log number for tracking and add the item to the DCR
database.

f) GATEKEEPER WILL EXAMINE PRIORITY AND EVALUATE WHEN THE DCR MUST BE REVIEWED
BASED ON THAT PRIORITY.

g) GATEKEEPER WILL COORDINATE AND SCHEDULE REVIEW MEETINGS AS NECESSARY.
Reviews will likely be with team members and vendors to ensure that the review
is adequate and all necessary estimates are completed.  This process will
include clarifications and acquisition of more detailed information if
necessary.

h) GATEKEEPER WILL MAKE OR OBTAIN A DECISION (REJECT/APPROVE) AS NECESSARY.


December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

If approved, the Gatekeeper will ensure that all necessary signatures are
acquired from project leaders and executives.

i) GATEKEEPER AND PROJECT DIRECTORS WILL OBTAIN ESTIMATES FOR RAMIFICATIONS OF
CONTRACT CHANGES NECESSARY.

If the request involves any contract changes, the Gatekeeper will obtain
estimates for the ramifications of those contract changes, and will forward with
justifications and impacts, the request to premier BellSouth and vendor
executive teams.  This may involve legal, financial and other resource
participation.

j) THE GATEKEEPER WILL DETERMINE AND ARRANGE SCHEDULING FOR IMPLEMENTATION.
After approval, if the change results in an impact to current development costs,
schedules or resources, the BIMS and CableData Project Managers will create a
Work Order using the Work Order concept detailed in the Software Development
Agreement.  If the change does not impact costs, schedules or resources, a Work
Order is not necessary.  However, a copy of the DCR should be attached to any
affected Work Orders.

k) CABLEDATA WILL UPDATE ALL NECESSARY BUSINESS REQUIREMENT SPECIFICATION AND
DETAIL DESIGN DOCUMENTS.

Approved DCRs will effect at least one of the current documents.  CableData will
reissue the changed documents, with new version numbers and dates.

l) THE GATEKEEPER WILL ARRANGE FOR AN UPDATE OF ALL NECESSARY REQUIREMENTS AND
DESIGN DOCUMENTS.

Approved DCRs will effect at least one of the current documents.  Therefore,
some republishing of those documents may be necessary, depending on the scope of
change.


December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>


                                 BELLSOUTH RBB TRIAL
    REQUIREMENTS/DESIGN CHANGE REQUEST AND EVALUATION FORM

Log Number:                       Final Decision: Accept/Reject

Abstract (one line):

Requester:                        Submission Date:
Organization:                     Telephone Number:

Component:              Subcomponent:            Version:

Type of Request:
       Requirements:              Clarification   Modification   New   Remove
       Design/Specifications:     Clarification   Modification   New   Remove

Priority: 1        2         3         4

Change Will Result In:
      Requirements Document only            (Yes   No)
      Internal component implementation     (Yes   No)
      External API Modification             (Yes   No)
      User Interfaces                       (Yes   No)
      Other (specify)                       (Yes   No)
    
Status: Submitted  Accepted  Implemented    Does Complete
    


Summary:






Justification:





Proposed Changes: (wording, page #, Requirement ID, etc. desired)





APPROVALS AND CONCURRENCES (AS NECESSARY)          SIGNATURE          DATE
BELLSOUTH PROJECT MGR.                                                   
BELLSOUTH COMPUTER TECHNICAL TEAM LEAD                                   
BELLSOUTH QA & TEST MGR.                                                 
Vendor Project Mgr.                                                      
                                                                         
                                                                         
                                                                         
                                                                         
BellSouth Executive (If Contract Change Required)                        
Vendor Executive (If Contract Change Required)                           
                                                                         
                                                                         


December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>


Anticipated Effects                                     Headcount       Hours
                                                        Required        Required
Related Requirements/Design (all vendors and components)                        
                                                                                
                                                                                
Software/Hardware Development (All vendors & components)                        
                                                                                
                                                                                
Documentation (User & System)                                                  
                                                                               
                                                                               
System Integrator                                                              
                                                                               
                                                                               
                                                                              
Testing (Unit & System)                                                        
                                                                               
                                                                               




BellSouth/Vendor Contract Ramification Evaluation (To be completed by BellSouth)




Net Effects on Trial Service Delivery (To be completed by BellSouth)




PRIORITY DESCRIPTIONS:
1. Mandatory.
Change must be made to accommodate regulatory requirements, correct a system
design failure, implement a BellSouth corporate policy, etc.

2. New Market or Functional Necessity.
Change is required for system to meet existing marketing requirements or
represent a successful competitive entry in the market.  System technical design
contains elements that are inconsistent, new products (HW/SW) are being added
require system modifications, etc.  Change will improve productivity,
profitability, etc.

3. Discretionary development and enhancements
Change is desirable for system consistency, appearance, performance,
reliability, or other reason - but is not necessary immediately.

4. Administrative/wish list
Typos, document structure, "wish lists" to be recorded for future consideration,
etc.

December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>


            Exhibit B CableData Development and Consulting Fee Schedule


Project Director/Project Manager            [*]
Member of the Technical Staff               [*]
Manager                                     [*]
Staff member/On-site                        [*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


December 21, 1995

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION.
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
              CABLEDATA, INC. EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

                                                               EXHIBIT C
                                 CABLEDATA WORK ORDER
                                        FOR
                        BELLSOUTH INTERACTIVE MEDIA SERVICES

This Work Order is a part of the Software Development Agreement dated December
_____, 1995, between BellSouth Interactive Media Services, Inc., a Georgia
corporation ("BIMS"), and CableData, Inc., a California corporation
("CableData").  All work performed under this Work Order is subject to the terms
and conditions of the Software Development Agreement.

1. GENERAL

Date of Work Order: 8/18/95  Work Order Number: 1
This work order is referred elsewhere to be the "Initial Work Order" 

2.  DESCRIPTION OF WORK
Installation of Intelecable -TM- Version 2.5 pursuant to the Operating and
License Agreement.

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
           U.S. COMPUTER SERVICES EXCEPT PURSUANT TO A WRITTEN AGREEMENT.

<PAGE>

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


                                        -2-
                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
           U.S. COMPUTER SERVICES EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

[*]

3.SERVICE BILLING METHOD: COMBINATION FIXED PRICE AND TIME AND MATERIAL
METHOD(REF. PARAGRAPH 5.A OF DEVELOPMENT AGREEMENT)

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                        -3-
                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
           U.S. COMPUTER SERVICES EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

a. MILESTONE PAYMENT SCHEDULE (Ref. paragraph 5.a.i of development agreement)

The following amounts will be withheld until completion of acceptance testing
and acceptance of software. This is in lieu of a normally withheld 20% of a
workorder amount, with 1 0% paid upon acceptance, and final 10% upon delivery of
final documentation.

    Milestone Event(s)                                Amount(s)
[*]

    Final Payments made upon delivery and acceptance of all documentation:
[*]

    B. INCENTIVE PAYMENT SCHEDULE (Ref. paragraph 5.c of development agreement)


Deliverable Item(s)          Milestone      #days     Incentive
                             Date(s)        early     Amount(s)


NONE


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                         -4-
                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
           U.S. COMPUTER SERVICES EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

[*]


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                        -5-
                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
           U.S. COMPUTER SERVICES EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>


d. Additional Allowable Expenses To Be Incurred (Ref. paragraph 5.a.ii.A of
DEVELOPMENT agreement) (Note: this item covers all expenses to be incurred such
as trip expenses, etc.)

[*]

4. OPERATING ENVIRONMENT (Ref. paragraph 7g of Operating and License Agreement)
(NOTE: this section is to describe changes that may be necessary to the
operating environment to accommodate this WORK Order.)

    No changes are necessary to the operating environment established for this
work order.




5, DELIVERABLES/SOFTWARE RELEASE (Ref. paragraph 6.b of development AGREEMENT)

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                             -6-
                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
           U.S. COMPUTER SERVICES EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

a. OWNERSHIP (Ref. paragraphs 10 and 11 of the development agreement)
         Ownership falls into these categories:
         1.     CableData retains full ownership
         2.     BIMS retains full ownership
         3.     Joint ownership between BIMS and CableData

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                         -7-
                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
           U.S. COMPUTER SERVICES EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

[*]


6. IMPLEMENTATION SCHEDULE (Ref. paragraph 6 of development agreement)

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                        -8-
                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
           U.S. COMPUTER SERVICES EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>


Item(s)                                                    Date(s)

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


                                        -9-
                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
           U.S. COMPUTER SERVICES EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>


7.ACCEPTANCE TEST CRITERIA:

Acceptance test criteria for the core software will be the Documentation, i.e.
CableData supplied Reference Manuals and Release notes.  For the custom
software, acceptance test criteria will be Business Functionality Specification
and Detail design documents, attached to this work order.


                                        -10-
                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
           U.S. COMPUTER SERVICES EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>

8. ATTACHMENTS:

          Attachment A     Approved Requirements of Business Functionality 
                           documents
          Attachment B     Detailed design documents


                                        -11-
                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
           U.S. COMPUTER SERVICES EXCEPT PURSUANT TO A WRITTEN AGREEMENT.
<PAGE>


8. APPROVALS

All of the terms, covenants and conditions set forth in the Software Development
Agreement are incorporated herein by reference as if the same had been set forth
herein in full.


CABLEDATA, INC.                                  BELLSOUTH INTERACTIVE
                                                 MEDIA SERVICES, INC.

Jerry Johnson                                    James R. Gadd
- -------------                                    -------------
Name                                                  Name

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

/s/Jerry Johnson                                 /s/James R. Gadd
   -------------                                    -------------
Signature                                           Signature

December 27, 1995                                December 22, 1995
- -----------------                                -----------------
Date                                                  Date



                                        -12-
                                PRIVATE/PROPRIETARY
                  CONTAINS PRIVATE AND/OR PROPRIETARY INFORMATION
          MAY NOT BE USED OR DISCLOSED OUTSIDE THE BELLSOUTH COMPANIES OR
           U.S. COMPUTER SERVICES EXCEPT PURSUANT TO A WRITTEN AGREEMENT.


<PAGE>
                                                                 EXHIBIT 10.29
<PAGE>
                          CABLEDATA'S INTELECABLE -TM 

                         OPERATING AND LICENSE AGREEMENT

THIS AGREEMENT IS BETWEEN CABLEDATA, INC. (hereinafter called "CableData"), a
California corporation located at 2969 Prospect Park Drive, Rancho Cordova, CA
95670, and BELLSOUTH INTERACTIVE MEDIA SERVICES, INC. (hereinafter called
"BIMS"), a Georgia corporation located at 1100 Abernathy Road, Suite 414,
Building 500, Atlanta, GA 30328.

BIMS and CableData, by their execution of this Operating and License Agreement,
hereby agree that CableData shall provide and BIMS shall utilize CableData's
Intelecable proprietary subscriber management software (hereinafter called "Core
Software") and Services, throughout the period of this Agreement. 

1.   PERIOD OF AGREEMENT

This Agreement shall be for a period of [*] months, commencing on the date of
full execution of this Agreement ("the Effective Date").  BIMS shall have the
right to extend the Agreement for up to [*] following the expiration of the
initial term, subject to the adjusted pricing set forth in the Pricing
Attachment.  Thereafter, the parties may agree to extend the Agreement for an
additional period to be mutually agreed upon.

2.   DEFINITIONS

The following definitions are applicable to this Agreement:

     a.   Affiliate - with respect to BIMS, any entity designated by BIMS for 
inclusion under this Agreement which controls, is controlled by or is under 
common control with BIMS, or any partnership or other such entity in which 
BIMS or its Affiliates have any material form of ownership, and for entities 
having 100,000 or more Subscribers, which CableData has consented to be 
included under this Agreement.  For purposes of this definition of Affiliate, 
"material form of ownership" shall be deemed to mean partnerships or other 
entities in which BellSouth Corp. or a BellSouth subsidiary has in excess of 
a fifty percent (50%) ownership interest.  BIMS shall submit to CableData's 
Project Manager the names of all entities having 100,000 or more Subscribers 
that it wishes to include within the definition of Affiliate, and CableData 
shall have fifteen (15) days thereafter to notify BIMS in writing if, in its 
sole reasonable discretion, it objects to the inclusion of such entity under 
this Agreement, in which case the entity will not be included within the 
definition of Affiliate under this Agreement.  If CableData fails to give 
such notice, the entity will be deemed to be added to this Agreement as an 
Affiliate.  Entities with fewer than 100,000 Subscribers will be added to the 
list of Affiliates at BIMS's sole discretion. In no event shall an entity be 
deemed to be an Affiliate if it offers Subscriber Management Software 
products or services in the open market in direct or indirect competition 
with CableData's Software.  All references to BIMS in this Agreement will be 
deemed to include Affiliates.

     b.   Agreement - CableData's Intelecable Operating and License Agreement
and the Attachments thereto between BIMS and CableData, as the same may be
amended from time to time.

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                      - 1 -

<PAGE>

     c.   Authorized Parties -- third parties who provide services over BIMS's
facilities and network and who have been approved by CableData to use the Core
Software, which approval shall not be unreasonably withheld.  For purposes of
this definition, CableData consents to the inclusion of Vanguard Cable Corp. as
an Authorized Party.  Additional third parties may be approved by CableData as
follows: upon receipt of written notice from BIMS, CableData shall have fifteen
(15) days thereafter to notify BIMS in writing if, in its sole reasonable
discretion, based on an assessment of the third party's competitive position
relative to CableData, CableData objects to the inclusion of such entity as an
Authorized Party.  If CableData does not respond within such time period, the
third party will be deemed to be approved by CableData.

     d.   BIMS's Computer -- the equipment made available by BIMS, or an
Authorized Party, that has been configured to conform to the processing
requirements of the Core Software, as set forth in the Operating Environment
Attachment hereto.

     e.   BIMS's Site -- a location at which BIMS's Computer is or is to be
located for the purpose of using the Core Software by or on behalf of BIMS or
any of its Affiliates or Authorized Parties.

     f.   Business Day -- (i) with respect to any time period within which 
BIMS must respond, Monday through Friday, excluding any holidays recognized 
by BIMS as company-wide holidays; and (ii) with respect to any time period 
within which CableData must respond, Monday through Friday, excluding any 
holidays recognized by CableData as company-wide holidays.  All time period 
references in this Agreement to "days" other than Business Days shall be 
deemed to refer to calendar days.

     g.   Custom Software -- the software, including any enhancements,
modifications and additions to the Core Software, developed by CableData
pursuant to the terms of the Software Development Agreement.  The Custom
Software shall include, without limitation, the "Custom Software" and the
"Interface Software," as those terms are defined and used in the Software
Development Agreement.

     h.   Documentation -- all detailed User and operational manuals, 
instructions and other materials required to fully utilize the Core Software, 
and all training manuals and routines designed to train Users in the 
operation of the Core Software.  The term "User(s)" includes both the 
user/operators of any server-based portions of the Core Software as well as 
the end-users of any terminal-based portions of the Core Software.  The term 
"Documentation" shall also include any and all reference documentation and 
release documentation, to the extent provided or otherwise available to be 
provided to any of CableData's other customers, defining the operation and/or 
performance of the Core Software and/or any releases of the Core Software 
made available by CableData.  The initial delivery of Documentation hereunder 
shall include, without limitation, release documentation for all releases of 
the Core Software through and including Version 2.5 of the Core Software.  
All Documentation supplied on disks will be in machine readable form.

     i.   Laboratory System -- a System used by BIMS and/or Authorized Parties
other than for processing transactions and records for Subscribers.  A
Laboratory System is used primarily for testing, training and back-up purposes.

     j.   License -- the license set forth in Section 3 of this Agreement
providing BIMS and Authorized Parties with permission to use the Core Software.

                                      - 2 -

<PAGE>

     k.   Maintenance -- the software maintenance which CableData provides BIMS
for the on-going maintenance of the Software.

     l.   Production System -- a System used by BIMS and/or Authorized Parties
for processing transactions and records for Subscribers.

     m.   Products -- all products provided by CableData to BIMS pursuant to 
this Agreement, including Core Software and Documentation.

     n.   Proposal - U.S. Computer Services (predecessor in interest to
CableData) Initial Response to BIMS's Request for an Intelecable/Oracle
Interface dated August 29, 1994, as modified by the facsimile transmission from
Dave H. Williams to Larry E. Ryan dated September 1, 1994, the letter from
Robert Crowley to Larry E. Ryan dated September 23, 1994 and the Memorandum of
Understanding dated December 5, 1994, between USCS and BIMS, all of which
documents are attached hereto as Exhibit   and incorporated herein by reference
except as specified in Paragraph 7.a.

     o.   Self-Help Code -- any back door, time bomb, drop dead device, or 
other software routine designed to disable a computer program automatically 
with the passage of time or under the positive control of any person or 
entity other than BIMS.  Self-Help Code does not include software routines in 
the Core Software, if any, designed to permit BIMS (or a third party 
authorized by BIMS) to obtain access to the System (e.g., remote access via 
modem) for purposes of maintenance or technical support.

     p.   Services -- all work performed by CableData for BIMS pursuant to this
Agreement including, but not limited to, Maintenance and Support.

     q.   Software -- the Core Software, the Documentation and the Custom
Software.
     
     r.   Software Compatibility Matrix -- the then current version of 
CableData's "Software Vendors, Configurations, Versions Supported by the 
Center," the current version of which is attached hereto as Attachment E. 
CableData acknowledges and agrees that none of the third party product(s) 
listed on the Software Compatibility Matrix will be removed from any 
subsequent versions of the Software Compatibility Matrix, but that only the 
versions (i.e., identified by release number) for such third party product(s) 
may change.
     
     s.   Software Development Agreement -- the Software Development Agreement
between BIMS and CableData of even date herewith pursuant to which CableData is
to provide the Custom Software to BIMS.

     t.   Source Code -- the source code corresponding to the applicable
software, including all updates, upgrades and revisions thereto, plus any
pertinent commentary or explanation that may be necessary to render the Source
Code understandable and usable by trained computer programmers who are generally
familiar with Oracle database products and the C and C++ programming languages.

     u.   Subscriber -- active subscribers having a balance or a transaction
posted on BIMS's Computer as of a specific date during any given month,
excluding subscribers who are not subject to collection activity. A month, for
purposes of this definition, is the period between successive final month-end
cutoffs for BIMS's invoicing purposes.

                                      - 3 -

<PAGE>

     v.   Support - software support services provided by telephone by CableData
employees who are trained customer service representatives from the Support
Facility.

     w.   Support Facility - CableData's office in Sacramento, California or
such other office as CableData shall from time to time designate for the purpose
of providing BIMS Support.

     x.   System - the Core Software, the Custom Software, the Third Party
Software and the computer equipment on which the Core Software, Custom Software
and Third Party Software will be installed, as described in the Operating
Environment Attachment hereto.

     y.   Third Party Software - the computer programs which are (i) owned by
third parties, (ii) provided by CableData to BIMS hereunder or licensed by BIMS
from a third party, and (iii) listed in the Third Party Software Attachment
hereto.

     z.   Unauthorized Code - any virus, Trojan horse, worm, or other software
routines designed to permit unauthorized access; to disable, erase, or otherwise
harm software, hardware, or data; or to perform any other such actions.  The
term Unauthorized Code does not include Self-Help Code.
  
3.   LICENSE GRANT

     a.   CableData hereby grants BIMS non-transferable (except as otherwise 
provided herein) non-exclusive Licenses, without right of sublicense, to use 
the Core Software and associated Documentation listed in the Pricing 
Attachment solely for BIMS's own internal use at BIMS Sites, sites at which 
BIMS's customer contact personnel have remote access to BIMS's Computer and 
sites operated by Authorized Parties designated in the Site Attachment of 
this Agreement, as well as for the use of such Authorized Parties, in 
accordance with the terms and conditions of this Agreement.  Such Licenses 
shall be for use in connection with BIMS's Production System and for use in 
connection with BIMS's Laboratory System.  No more than one License will be 
required for any single BIMS Corp (as "Corp" is further defined in Paragraph 
9(c)).  BIMS may, at its option from time to time by giving CableData prior 
notice, add new BIMS Sites or Products or Services; CableData will then add 
such new sites to the Site Attachment and such Products and Services to the 
Products/Services Attachment.

     b.   BIMS shall have the right to use the Core Software and Documentation
on BIMS's Computer(s) and to make copies of the Core Software (object code
version only) and Documentation for backup, archival and testing purposes only;
provided, however, that BIMS shall have the right to make copies of
insubstantial portions of Documentation, subject to the limitations and
obligations set forth in the last sentence of the Paragraph 3(b).  BIMS agrees
to maintain appropriate records of the number and location of all such copies of
the Core Software and to make the records available to CableData upon request. 
With respect to Documentation, BIMS shall use due care to protect such
Documentation from unauthorized disclosure and to ensure that copies made for
BIMS's own internal use, and for use by Authorized Parties, shall not be
substantial portions of the Documentation and shall be appropriately protected.

     c.   Except as otherwise permitted hereunder, BIMS agrees not to modify the
Core Software of attempt to de-compile or reverse engineer the Core Software. 
BIMS understands that upon termination of this License, neither BIMS nor anyone
acting under BIMS may make any use whatsoever of the Core Software or any part
thereof.

                                      - 4 -

<PAGE>

     d.   CableData shall deliver to and install the initial copy of the Core
Software at the initial BIMS Site designated by BIMS in the Site Attachment
hereto, together with the required Documentation.  As soon as reasonably
possible after installation of the Core Software and implementation of the
Custom Software, BIMS shall conduct the acceptance testing procedures for the
Software set forth in Section 7 of the Software Development Agreement.
     
     e.   Interface Disclosures.  CableData will make available for purchase 
to third parties on a non-discriminatory basis descriptive documentation 
concerning the use of CableData's application program interfaces (APIs), 
communication protocols and interface specifications (a current list of which 
is contained in the Interface Attachment) necessary to enable third party 
developers to write applications which interface/communicate with the Core 
Software.  Licenses  for all such software, with the exception of software 
developed by CableData for BIMS pursuant to the Software Development 
Agreement, will be available at the prices set forth in CableData's standard 
Interface Specification Fee and Non-Disclosure Agreement, a copy of which is 
attached hereto as part of the Interface Attachment and incorporated herein 
by reference.  If no price is included in the attachment for a particular 
interface, the license will be made available at CableData's then-current 
prices, which will be quoted to BIMS no later than five (5) business days 
after BIMS's request therefor.

4.   PRICES

     a.   The prices for the Core Software and Services under this Agreement 
are set forth in the Pricing Attachment.

     b.    Pricing for the Core Software Basic System and the associated modules
is inclusive of an unlimited site license for the DOS Windows version of
CableData's Intelecable Emulator (inclusive of maintenance).
     
     c.   All prices are F.O.B. (freight on board) Sacramento, California, USA;
and are exclusive of transportation charges, which, if applicable, will be
invoiced separately.  CableData will arrange for insurance on the Software and
Products while in transit at BIMS's expense.

     d.   The Price Schedule for utilizing the Software and Products selected by
Customer shall be subject to increase upon forty-five (45) days' prior notice
commencing eighteen (18) months from the effective date of this Agreement,
provided however, that the percentage of such increase or increases shall not
exceed the percentage increase in the Consumer Price Index for All Urban
Consumers (CPI-U) published by the U.S. Department of Labor (a) from the date of
last general price increase upon which the following pricing were based (b) to
the date of price increase under this Agreement.  Prices for all CableData
products and services ordered and used by BIMS but not set forth in the Pricing
Attachment shall be the prices in effect on the date the product or service is
ordered by BIMS.

     e.   In the event that CableData provides new Core Software or Services, 
CableData may modify the Pricing Attachment to reflect the new services and 
options and the prices thereof which are available to be ordered by BIMS 
hereunder.  This may include new releases of existing software that contain 
significant enhancements and functions that increase the value of the 
solution to BIMS, and are offered by CableData to its other customers for an 
additional charge, as well as new Core Software modules that are made 
available to CableData customers at an additional charge. New "Major Software 
Releases" (as defined in Paragraph 15(d) below) that are made available to 
Cable Data customers as part of standard Maintenance will be made available 
to BIMS at no cost beyond the cost of periodic Maintenance hereunder.

                                      - 5 -

<PAGE>

     f.   If BIMS elects to obtain a paid-up License for the Core Software, 
BIMS will be charged a one-time fee for the License (which fee includes basic 
Support), or will pay the fee in periodic installments.  BIMS may elect to 
obtain a paid-up License for the Core Software at or any time after the 
one-year anniversary of this Agreement. Cable Data will provide BIMS with a 
price quote for a paid-up License for the Core Software at least thirty (30) 
days prior to the one year anniversary of this Agreement.  Following the 
Warranty Period (hereinafter defined), BIMS will be required to pay annually 
for on-going Maintenance.  In the event that BIMS elects to pay its License 
fees on a monthly per-Subscriber basis, it agrees to pay a monthly minimum 
charge, as set forth in the Pricing Attachment, for both the License and the 
ongoing Maintenance; provided, however, that the obligation to pay such 
monthly License fees under this Agreement shall commence. [*]      

     g.   CableData represents that the prices provided hereunder are equivalent
to or better than the prices being offered by CableData to its other similarly
situated customers of comparable size for comparable orders of similar products
and services, subject to substantially similar terms and conditions.  Annually,
on the anniversary date of this Agreement, CableData will review its prices to
all other customers.  If CableData has entered into agreement with other
customer(s) of comparable size for substantially similar products and services
subject to substantially similar terms and conditions and has extended to such
customer(s) more favorable pricing for such products and services, this
Agreement shall be deemed amended to extend such pricing to BIMS.

5.   PAYMENT

     a.   CableData shall invoice BIMS annually for all Products and Services 
that are billable on an annual basis and monthly for Products and Services 
that are billable on a monthly basis, in accordance with the Pricing 
Attachment and other applicable Attachments.  One-time charges will be billed 
by CableData in advance.  Standard payment terms are net cash, without 
discount, set-off or deferment, due and payable within thirty (30) days from 
the Invoice Date (hereinafter defined); payment of all undisputed charges is 
due in U.S. dollars. In the event that BIMS does not render full payment of 
all undisputed charges within sixty (60) days of the date payable, CableData 
may, after notifying BIMS, cease any and all Services until such account is 
brought current.

     b.   If BIMS fails to pay all undisputed charges within thirty (30) days of
the date of invoice, or the date of postmark if the postmark date is more than
one (1) Business Day after the invoice date (collectively, the "Invoice Date"),
BIMS agrees that upon the expiration of a fifteen (15) day cure period following
the effective date of written notice from CableData of such failure to pay,
CableData will have the right to invoice and BIMS will pay a late payment
service charge of one and one half percent (1.5%) per month, but not in excess
of the lawful maximum interest allowed, on the past due balance from and after
the expiration of such fifteen (15) day cure period.

     c.   BIMS agrees to pay CableData all legally due sales, use or similar 
taxes in connection with the purchase of any services or tangible personal 
property pursuant to the terms of this Agreement.  CableData shall separately 
state all applicable sales, use or similar taxes on each invoice as 
prescribed by the applicable terms of this Agreement or legal authority.  
CableData shall be legally responsible for remitting all taxes collected from 
BIMS to the proper taxing authority.  In the event the taxability of any 
purchase under this Agreement is disputed by a taxing authority as the result 
of an audit or otherwise, CableData shall provide timely written notice to 
BIMS of this dispute prior to any settlement or action on this dispute.  
Notwithstanding the foregoing, any fines, penalties or interest imposed on 
BIMS or CableData because of late payment by CableData shall be borne by 
CableData, unless such fines, penalties or interest result from the actions 
taken by CableData at the written direction of BIMS.  BIMS shall not be 
responsible for paying or

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                      - 6 -

<PAGE>

reimbursing CableData for any corporate franchise tax, capital tax, net worth 
tax, or taxes measured by reference to CableData's net income.

     d.   Should BIMS in good faith dispute any portion of the invoice submitted
by CableData, BIMS must advise CableData in writing within thirty (30) days of
Invoice Date of such dispute and pay, when due, all non-disputed charges. 
CableData will consider BIMS's dispute in good faith.  Any charges not disputed
or corrected by either party within six (6) months of the Invoice Date will be
deemed to be final an nondisputable unless the party disputing the charge can
provide the other with satisfactory proof that it could not have known of the
existence of a dispute within that period.  Except as otherwise provided herein,
in no event will any amounts be refundable more than one (1) year after payment
was made.

6.   CONFIDENTIALITY AND TITLE

     a.   CableData agrees that all confidential information disclosed to it 
by BIMS, or otherwise obtained by CableData, during performance of this 
Agreement shall be considered proprietary and shall be held in confidence by 
CableData and used by it only in performance of this Agreement.  Such 
confidential information of BIMS shall include, without limitation, any and 
all information regarding the identity of, or in any way relating to, BIMS's 
customers, including without limitation, Subscribers.  No confidential 
information provided by BIMS under this Agreement, or otherwise obtained by 
CableData, shall be duplicated or furnished to another party without the 
prior written consent of BIMS.  CableData will exercise the same standard of 
care to protect BIMS's proprietary data disclosed hereunder as is used to 
protect CableData's own proprietary data from unauthorized disclosure; 
provided, however, that CableData will comply, at a minimum, with any and all 
rules, regulations and orders of the Federal Communications Commission, or of 
any other applicable federal or state regulatory agency, relating to the 
confidentiality of customer information.
     b.   BIMS recognizes and agrees that, during the term of this Agreement and
thereafter, title to, ownership of, and all proprietary rights to the Core
Software (and the Custom Software except as may otherwise be agreed to between
the parties), and all copies thereof will at all times remain the property of
CableData or its licensors, as the case may be.  BIMS agrees to maintain the
confidentiality of the Core Software and not to disclose any portion of the Core
Software to any third party other than to BIMS's employees and to third parties
who are subject to a nondisclosure agreement with BIMS.  Nothing herein shall
preclude BIMS from sharing with third parties, including prospective CableData
customers, general information about the features and functionality of the Core
Software, general information about BIMS's actual and intended uses of the Core
Software , or information concerning the existence and nature of the
relationship between CableData and BIMS; provided, however, that BIMS shall not
permit any unauthorized third party to copy any part of the Core Software of
Documentation.  BIMS will exercise the same standard of care to protect
CableData's proprietary data disclosed hereunder (exclusive of the Custom
Software), as well as confidential information such as CableData's pricing,
prospective customers and CableData-owned development tools and system libraries
disclosed under the Software Development Agreement, as is used to protect BIMS's
own proprietary data from unauthorized disclosure.

     c.   CableData recognizes and agrees that, notwithstanding the foregoing,
title to, ownership of, and all proprietary rights to the data processed by the
Core Software pursuant to this Agreement will at all times remain the property
of BIMS.

     d.   Nothing herein shall prohibit either party from using or disclosing
any information which is or comes into the public domain through no fault of
that party or which that party in good

                                      - 7 -

<PAGE>

faith receives from a third party entitled to disclose the same without
restriction, or which that party proves was already known to it prior to
disclosure by the disclosing party.

7.   LIMITED WARRANTY; LIMITATION OF REMEDIES

     a.   Proposal.  CableData warrants that the content of the Proposal, which
was relied upon by BIMS in entering into this Agreement, was true and accurate
and contained no material omissions or misrepresentations as of the date of the
Proposal and, except as otherwise expressly set forth herein, remains true and
accurate and contains no material omissions or misrepresentations as of the date
hereof.  Exceptions to the Proposal are changes from the Proposal to the
Agreement to the new software components, estimated costs of software
development and professional fees.  The Proposal is hereby incorporated herein
by this reference and shall constitute part of this Agreement as if fully set
forth herein.  To the extent of any conflict between the terms and conditions of
this Agreement, including the Attachments attached hereto, and the terms and
conditions of the Proposal, the terms and conditions of this Agreement shall
control.

     b.   Ownership.  CableData warrants that it is the owner of the Core
Software or otherwise has the right to grant to BIMS the License to use the Core
Software granted hereunder without violating or infringing any law, rule, or
regulation, or any United States or foreign copyright, patent, trade secret or
other proprietary right of any third party.

     c.   BIMS's Reliance.  CableData warrants that it is aware that BIMS is
relying on its skill and judgment in providing the Software.  CableData believes
that it has been made generally aware of BIMS's documented business requirements
and intended uses for the Software, and based on such belief CableData warrants
that the Software shall satisfy such requirements and is fit for such intended
uses.  The Core Software is at the current release level.

     d.   Warranty Period.  CableData warrants that, for a period of ninety (90)
days from the date of Acceptance of the Software pursuant to the Software
Development Agreement, the Core Software provided to BIMS will perform as
described in the Documentation and will be capable of operating on BIMS's
network in conformity with such Documentation.  In the event that the
Documentation includes any disclaimer of warranty or liability which conflicts
with any of the terms and conditions of this Agreement, or otherwise purports to
reduce or limit CableData's obligations under this Agreement, the terms and
conditions of this Agreement shall control and such disclaimers and limitations
shall not apply.

     e.   Performance Assurances.  The benchmarks set forth in the Capacity
Reference Guidelines Attachment are provided as capacity and reliability
guidelines and are not a warranty of System performance.  Capacity involves
transaction rates, and reliability relates to the availability of the Core
Software without interruption.  The guidelines are offered to BIMS as a guide
for determining whether or not analysis and corrective action are indicated. 
Such corrective action might include adding hardware or software or
reconfiguring the operating system or the RDBMS.  In the event System
performance falls below the benchmarks set forth in the attachment, CableData
will consult with BIMS, at BIMS's request, on the most cost-effective course of
action for BIMS to pursue to achieve the desired System performance.  Nothing
contained in this paragraph diminishes or otherwise undermines the other
warranties set forth in this Section 7.

                                      - 8 -

<PAGE>

     f.   Compatibility.

          i.   Core Software.  CableData warrants that all updates, upgrades and
revisions to the Core Software furnished hereunder will be implemented in such a
manner as to maintain backward compatibility with previous versions or releases
of the Core Software furnished hereunder so that such previous versions or
releases shall continue to be operable with the Core Software as updated,
upgraded, or revised, in materially the same manner and with materially
equivalent performance.  The addition of new features and functions to the Core
Software may result in degradation of performance that will require additional
system resources to overcome.  CableData will make reasonable efforts through
quality assurance and performance analysis to minimize any degradation of
performance due to the addition of new features and functions to the Core
Software and will assist BIMS in identifying and defining any additional
resources that may be necessary, both prior to and after the delivery of the
update, upgrade or revision.

          ii.  Custom Software.  In addition, CableData will continue to 
preserve the APIs so as to ensure that applications written to the API within 
earlier versions of the Core Software and Custom Software will work with all 
subsequent updates, upgrades and revisions to the Core Software and Customer 
Software in materially the same manner and with materially equivalent 
performance.

          iii. Third Party Software and Operating Environment.  CableData
further warrants that it will continue to preserve the APIs so as to ensure that
the following items will work with all subsequent updates, upgrades and
revisions to the Software, in materially the same manner and with materially
equivalent performance; (i) Third Party Software specifically identified in the
then current version of CableData's Software Compatibility Matrix, and (ii) the
hardware/software identified in the Operating Environment Attachment hereto. 

     g.   Operating Environment.  CableData warrants that the Software as
delivered to BIMS by CableData in connection with the Initial Work Order and
Work Order Number 2 under the Software Development Agreement, and each module or
component and function thereof, will be capable of operating fully and correctly
on the computer equipment and within the Operating Environment specified in the
Operating Environment Attachment hereto.  Any and all compilers or other
computer programs which must be present in order for such Software to function
fully are also specified in the Operating Environment Attachment.  CableData
will ensure that future releases of the Core Software will operate properly with
versions of the products identified in CableData's then-current Software
Compatibility Matrix.

     h.   Self-Help Code.  The Software neither contains nor will contain any
Self-Help Code nor any Unauthorized Code, and CableData agrees to ensure against
any data lost as a result of same.

     i.   Software Support Personnel.  CableData warrants that each of
CableData's employees, agents, or subcontractors assigned to perform any work
hereunder shall have the proper skill, training and background so as to be able
to perform in a competent and professional manner and that all work will be so
performed.

     j.   Limited Warranty.  CableData does not warrant that (i) the Core 
Software will run properly on all hardware, (ii) the Core Software products 
will operate in the combination of hardware/software which may be 
independently selected by BIMS, (iii) the use of the Core Software products 
will be uninterrupted or error-free, or (iv) all Core Software product 
program errors will be corrected.

                                      - 9 -

<PAGE>

     k.   Defects.  In the event of a material (Severity Level 1 or 2, as
defined in the Maintenance/Support Attachment) defect in any Core Software
product commencing upon delivery of Custom Software pursuant to the Initial Work
Order under the Software Development Agreement, CableData will, at its option
(at no additional charge) during the Warranty Period; thereafter, subject to the
payment of the periodic Maintenance fees) correct or replace it.  If a defective
Core Software product cannot be corrected to BIMS's reasonable satisfaction or
replaced within a reasonable amount of time, BIMS may return the defective Core
Software product [*]

[*]

     m.   Exclusions.  The warranties and remedies specified in this Section 7
will not apply if the malfunctions of the Core Software products are due to (i)
natural disasters, including fire, flood, or lightning, (ii) armed conflict or
civil disturbance, (iii) electrical fluctuations or failures, (iv) gross neglect
or intentional misuse of the Core Software products or other failure to comply
with the instructions set forth in the most current Documentation provided by
CableData, (v) corrections or modifications to the Core Software solution or its
operating environment not provided by or approved in writing by CableData
through the change control procedures described in the Software Development
Agreement executed concurrently herewith, or (vi) the failure to install
promptly a correction provided by CableData.

     n.   DISCLAIMERS.  EXCEPT AS EXPRESSLY PROVIDED IN THIS AGREEMENT AND IN
THE SOFTWARE DEVELOPMENT AGREEMENT, ALL WARRANTIES, CONDITIONS, REPRESENTATIONS,
INDEMNITIES AND GUARANTEES WITH RESPECT TO CABLEDATA'S CORE SOFTWARE PRODUCTS,
WHETHER EXPRESS OR IMPLIED, ARISING BY LAW, CUSTOM, PRIOR ORAL OR WRITTEN
STATEMENT BY CABLEDATA OR OTHERWISE (INCLUDING, BUT NOT LIMITED TO ANY WARRANTY
OF MERCHANT ABILITY OR FITNESS FOR A PARTICULAR PURPOSE AND ANY WARRANTY AS TO
SKILL AND CARE) ARE HEREBY OVERRIDDEN, EXCLUDED AND DISCLAIMED.

     o.   LIMITATION OF LIABILITY.  EXCEPT WITH RESPECT TO ITS INDEMNIFICATION
OBLIGATIONS HEREUNDER OR UNDER THE SOFTWARE DEVELOPMENT AGREEMENT, UNDER NO
CIRCUMSTANCES WILL EITHER PARTY BE

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                     - 10 - 

<PAGE>

LIABLE FOR ANY CONSEQUENTIAL, INDIRECT, SPECIAL, PUNITIVE, OR INCIDENTAL DAMAGES
OR LOST PROFITS, WHETHER FORESEEABLE OR UNFORESEEABLE, ARISING OUT OF BREACH OR
FAILURE OF EXPRESS OR IMPLIED WARRANTY, BREACH OF CONTRACT, MISREPRESENTATION,
NEGLIGENCE, STRICT LIABILITY IN TORT OR OTHERWISE EXCEPT ONLY IN THE CASE OF
DEATH OR PERSONAL INJURY WHERE AND TO THE EXTENT THAT APPLICABLE LAW REQUIRES
SUCH LIABILITY.  EXCEPT AS OTHERWISE PROVIDED, CABLEDATA'S LIABILITY TO BIMS FOR
ANY LOSSES OR DAMAGES, DIRECT OR INDIRECT, ARISING OUT OF THIS AGREEMENT SHALL
NOT IN ANY EVENT EXCEED THE TOTAL AMOUNT BILLED OR BILLABLE FOR THE SPECIFIC
PRODUCT OR SERVICE GIVING RISE TO THE CLAIM.

     p.   BIMS acknowledges that (i) the prices for the Core Software
contemplated under this Agreement are based on the limited warranties,
disclaimers and exclusions specified in this Section 7 and (ii) such prices
would be substantially higher if any of these provisions were unenforceable.

     q.   EXCEPT AS SET FORTH HEREIN, THIS AGREEMENT COVERS CABLEDATA'S SOFTWARE
AND DOES NOT COVER THIRD PARTY OR COMPUTER OPERATING SYSTEM SOFTWARE.  NO
WARRANTY, EXPRESS OR IMPLIED, INCLUDING, WITHOUT LIMITATION, WARRANTY OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, IS MADE WITH RESPECT TO
OPERATING SYSTEM SOFTWARE.
     
8.   TRAINING

     a.   CableData will provide pre-installation Core Software training
programs for BIMS's employees at CableData's Education Center.  The Core
Software training courses are available at the prices set forth in the Pricing
Attachment and will consist of the classes required by CableData.  Equipment and
materials used in the instruction are provided by CableData.

     b.   BIMS is responsible for all transportation to and from CableData's
Education Center, lodging and food for BIMS's employees that attend CableData's
training.

     c.   BIMS can purchase additional instruction at the prices specified in
the Pricing Attachment for all classes taught at CableData's Education Center. 
BIMS can also purchase customized on-site training at the daily rates specified
in the Pricing Attachment.

     d.   In addition to the provision of Maintenance and Support services
pursuant to Section 9 herein, upon request by BIMS, CableData shall identify and
assign the number of CableData professional services employees requested by BIMS
to be on-site at BIMS's facilities and devote all of their business time during
such assignment to the technical support of the Software and to facilitate the
support of the Software through CableData's customer service and support
organization.  As consideration for the provision of such on-site support, BIMS
shall pay CableData pursuant to the rates set forth in the Pricing Attachment. 
All such payments due hereunder shall be invoiced by CableData to BIMS on a
monthly basis.

9.   SOFTWARE MAINTENANCE AND SUPPORT

     a.   Maintenance.  Maintenance, as further defined in the
Maintenance/Support Attachment, is required for all CableData-provided Core
Software components.  Breach by BIMS of its obligation to pay a Maintenance fee
component of its monthly License fees following the Warranty Period will render
the Licenses granted hereunder immediately null and void, except in

                                     - 11 -

<PAGE>

the event that CableData is in material breach of the Agreement and BIMS elects
to maintain the Core Software pursuant to Section 17 herein.  As provided for in
the Software Development Agreement, CableData shall provide Maintenance for the
Custom Software, pursuant to the terms of this Section 9 and the
Maintenance/Support Attachment, at no charge to BIMS during the term of this
Agreement until the earlier of the date on which BIMS ceases to use the Custom
Software, or [*] following the expiration of the Warranty Period for the Custom
Software, as provided for in Section 14 of the Software Development Agreement. 
At no additional charge during the Warranty Period and thereafter as part of the
monthly License fees or periodic Maintenance fees, as applicable, set forth in
the Pricing Attachment, CableData shall provide BIMS with the following 
Maintenance Services:

           (i)  CableData shall notify BIMS of any defects or 
      malfunctions in the Software or Documentation that could 
      impact BIMS's ability to operate the Software in a not 
      insignificant manner and shall correct any such defects 
      or malfunctions in accordance with the 
      Maintenance/Support Attachment and provide BIMS with 
      corrected copies of same in accordance with the 
      Maintenance/Support Attachment;

           (ii) CableData shall provide BIMS with copies of the 
      Core Software and, as soon as reasonably available, 
      Documentation revised to reflect any upgrades of the Core 
      Software released by CableData and/or enhancements to the 
      Core Software made by CableData, including, without 
      limitation, modifications to the Core Software which can 
      increase the speed, efficiency or ease of operation of 
      the Core Software or add additional functionality or 
      capabilities to or otherwise improve the functions of the 
      Core Software, and modifications to the Core Software 
      which support new releases of the operating systems and 
      other third party software with which the Core Software 
      is designed to operate or interface; and
      
           [*]
      
     b.   Support.  Twenty-four (24) hours per day, seven (7) days per week
during the Warranty Period and during Business Hours (hereinafter defined)
during the Post-Warranty Period, CableData shall provide to BIMS Telephone
Support (toll-free in the United States) as defined in the Maintenance/Support
Attachment, or written consultation as requested by BIMS, in connection with its
use and operation of the Software or any problems therewith.  CableData will
respond to and resolve problems with the Software in accordance with the
following procedures:

           (i)  With respect to any problem involving the 
      Software whereby BIMS's use of the Software is adversely 
      affected (Severity Level 1 or 2 in the 
      Maintenance/Support Attachment), CableData will respond 
      to BIMS's request for service by telephone response by a 
      qualified and knowledgeable representative within one (1) 
      hour from the time CableData receives BIMS's call and 
      will complete such repairs within [*] of receipt of the 
      call for a Severity Level 1 problem, and within [*] of 
      receipt of the call for a Severity Level 2 problem. For 
      purposes of this Section 9(b)(i), CableData will be 
      deemed to have remedied the problem if it provides BIMS 
      with a reasonable work-around that enables BIMS to 
      continue to operate the Software or to perform the 
      affected function for a reasonable period of time until a 
      more permanent correction can be effected, as long as 
      CableData is rendering continuous effort to effect the 
      permanent correction.  CableData repair personnel shall 
      render continuous effort with respect to such problems.  
      With respect to each Severity Level 1 or 2

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                     - 12 -

<PAGE>

      problem, CableData will provide progress status reports 
      to BIMS at least twice daily until a remedy for each such 
      problem can be provided. [*]
      
           (ii) With respect to any other problem involving the 
      Software (i.e., Severity Levels 3,4 or 5 in the 
      Maintenance/Support Attachment), CableData will respond 
      during Business Hours to BIMS's request for service by 
      telephone response by a qualified and knowledgeable 
      representative within four (4) Business Hours from the 
      time CableData receives BIMS's call. [*]     
      
           (iii)     Unless and until a software support 
      surcharge is levied upon BIMS by CableData, as provided 
      for in Paragraph 15(d) hereof, CableData will have no 
      obligation to provide Support for defects that have 
      been corrected in releases of the Core Software 
      (exclusive of the Custom Software) that have not been 
      installed by BIMS within six (6) months of release to 
      BIMS of the version of the Software which represents the 
      computer code merged from the Customer Software 
      provided pursuant to the Software Development Agreement 
      into the applicable Core Software release then under 
      general release by CableData; provided, however, that 
      CableData will provide Support for such defects on a time 
      and materials basis until the surcharge commences.
      
      
     c.  Exclusions. Notwithstanding the provisions of Paragraphs 9(a) and 
(b) above, unless and until a software support surcharge is levied upon BIMS 
by CableData, as provided for in Paragraph 15(d) hereof, CableData shall have 
no obligation to notify BIMS of, or to provide timely resolution of, defects 
that have been effectively remedied in a subsequent Core Software release 
(exclusive of the Custom Software) made available to BIMS as part of its 
standard Maintenance which BIMS has elected not to install within six (6) 
months of release to BIMS of the version of the Software which represents the 
computer code merged from the Custom Software provided pursuant to the 
Software Development Agreement into the applicable Core Software release then 
under general release by CableData; provided, however, that CableData will 
provide timely resolution of such defects on a time and materials basis.  In 
addition, CableData will provide Support to BIMS for only one production Corp 
(a "Corp" is a BIMS System identified by a BIMS-requested unique corp number 
and having a single database) and one Playcorp (a "Playcorp" is used for 
utility purposes such as training, testing, development and studies) for each 
Core Software License granted hereunder; provided however that Support for 
additional production Corps will be provided to BIMS at no additional charge 
until such time as (i) expanded features of the Core Software have been added 
by CableData which are capable of handling expanded services groups and tax 
jurisdictions; and (ii) BIMS shall have had a reasonable period of time to 
convert data in multiple Corps into a single database.  Thereafter, if BIMS 
chooses to continue the use of multiple Corps (other than those provided for 
above), CableData will charge BIMS an annual Support charge, as set forth in 
Attachment A, for each additional Corp.  CableData will advise BIMS of 
appropriate methods to use in setting up additional production Corps.  These 
methods are intended to make the subsequent conversion process less costly 
than it would otherwise be.  In addition, CableData will perform the 
conversion at no charge for a period of ninety (90) days

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                     - 13 -

<PAGE>

following the general release of the version of the Core Software having the 
aforementioned capabilities; provided, however, that BIMS shall comply with 
CableData's reasonable recommendations regarding the setting up of Corps to 
facilitate conversion.  Should BIMS choose to implement conversion any time 
after such ninety (90) day period, the conversion will be performed at 
CableData's then-current time and materials rates.

10.  USE OF THE SOFTWARE BY BIMS

     a.   BIMS will be responsible for determining the appropriate uses to be
made of the Products based on the relevant Product Documentation and
specifications, as well as on its own unique business requirements, and should
establish those features that will enable it to meet its business requirements
through the setting of its own selected Product parameters.

     b.   BIMS will utilize the Core Software as set forth in the Documentation.

     c.   Except as otherwise provided herein, BIMS is not authorized to make 
modifications to the Core Software.  To the extent that BIMS or a third party 
not authorized by CableData make such modifications, CableData will not be 
responsible for repair of database impacted by the modifications, for support 
of any Core Software as modified, or for the compatibility of such modified 
Core Software with any equipment, with the unmodified Core Software or with 
any future Core Software releases.

     d.   CableData is not responsible for any changes to BIMS's database caused
by BIMS or any third party not authorized by CableData.  Any repair or
regeneration of database damaged by BIMS or an unauthorized third party will be
undertaken by CableData upon request at CableData's then-current rates, but
CableData does not warrant that such repair or regeneration will be successful.

11.  FORCE MAJEURE

     a.   Neither party to this Agreement shall be in default hereunder by
reason of its delay in the performance of or failure to perform, in whole or in
part, any of its obligations hereunder if such delay or failure resulted from
acts of God or other occurrences beyond its reasonable control and without its
fault or negligence.  Such acts or occurrences shall include, but not be limited
to, earthquakes, floods, fire, power failures, communications failures,
epidemics, strikes, lockouts, war, terrorist activity or government or other
applicable authority regulations which went into effect after the effect date of
this Agreement.

12.  INDEMNITY

     a.   CableData shall indemnify, defend and hold BIMS and its Affiliates,
and their respective officers, directors, agents and employees, harmless from
and against any and all liabilities, damages, losses, expenses, claims, demands,
suits, fines or judgments, including reasonable attorneys' fees, and costs and
expenses incidental thereto, which may be suffered by, accrued against, charged
to or recoverable from BIMS or any of its Affiliates,  or any of their
respective officers, directors, agents or employees, arising out of a claim that
the Core Software or any portion thereof infringes or misappropriates any United
States or foreign patent, copyright, trade secret or other proprietary right. 
In the event that the Core Software or any portion thereof is held in suit or
proceeding to infringe any rights of any other third party, and the use of the
Core Software or portion thereof is enjoined, CableData shall, at its sole cost
and expense, either (i) procure for BIMS and its Affiliates the right to
continue using the Core Software, or (ii) replace the same with non-infringing
software or materials of equivalent functionality and performance.

                                     - 14 -

<PAGE>
 
CableData shall have no liability to BIMS for any infringement action or claim
which is based upon or arises out of: (i) any modification of the Core Software
by BIMS without the express written permission of CableData; (ii) any use of the
Core Software in combination with any other system, equipment or software which
is not furnished by CableData or approved by CableData in writing; or (iii) use
of other than a current unaltered release of the Core Software.

     b.   CableData shall indemnify, defend and hold BIMS and its Affiliates, 
and their respective officers, directors, agents and employees, harmless from 
and against any and all liabilities, damages, losses, expenses, claims, 
demands, suits, fines or judgments, including reasonable attorneys' fees, and 
costs and expenses incidental thereto, which may be suffered by, accrued 
against, charged to or recoverable from BIMS or any of its Affiliates, or any 
of their respective officers, directors, agents or employees, arising out of 
or resulting from (i) claims of bodily injury, including death, or loss or 
damage to property or physical destruction of property arising out of or in 
connection with any act, error or omission of CableData or any of its 
officers, directors, agents, employees and subcontractors, during the term of 
this Agreement; (ii) intentional acts or gross negligence on the part of 
CableData in the course of its performance under this Agreement; or (iii) a 
reclassification or attempt to reclassify any of CableData's employees as an 
employee of BIMs, including, without limitation, any tax liability (including 
interest and penalties) resulting from BIMS's failure to pay, deduct or 
withhold income taxes, Federal Insurance Contribution Act taxes, or Federal 
Unemployment Tax Act taxes with respect to any of CableData's employees. 

     c.   CableData's duty to indemnify BIMS hereunder shall include all 
attorneys' fees which BIMS reasonably incurs in connection with the defense  
of any claims covered by this Section 12 and all settlement costs, except as 
otherwise provided in this Section 12.  Promptly after receipt by BIMS of a 
threat of any action, or a notice of the commencement or filing of any action 
against which BIMS may be indemnified hereunder, BIMS shall give notice 
thereof to CableData, provided that failure to give or delay in giving such 
notice to CableData shall not relieve CableData of any liability it any have 
to BIMS hereunder except to the extent that CableData demonstrates that the 
defense of such action is prejudiced thereby.  CableData or CableData's 
attorney(s) shall keep BIMS reasonably apprised of the continuing status of 
the claims covered by this Section 12, including any lawsuits resulting 
therefrom, and shall permit BIMS, upon BIMS's written request, to participate 
in the defense or settlement of any such claim, provided that CableData shall 
have no obligation to indemnify for, be bound by or otherwise incur any 
liability with respect to, any settlement terms to which it has not agreed.  
CableData shall assume the cost of defending against any such claim and shall 
select the attorney(s) to defend them against such claim subject to BIMS's 
approval, which shall not be unreasonably withheld.

13.  DISPUTE RESOLUTION

     a.   Each party agrees that any disagreement, controversy or dispute
between the parties relating to performance under or interpretation of this
Agreement will first be submitted in writing by one party to the other.  If a
dispute remains unresolved for a period of fifteen (15) days after such notice,
then it shall be submitted in writing to a panel of two senior executives, one
from each party, who shall promptly meet and confer in an effort to resolve such
dispute.  Each party's executives shall be identified by notice to the other
party, and may be changed at any time thereafter by notice to the other.  The
executives shall each hold the position of president or above within their
respective organizations.  Any decisions of the executives must be in a writing
signed by both executives and will be final and binding on the parties.  In the
event the executives are unable to resolve any dispute within fifteen (15) days
after submission to them, either party may then refer such dispute to
arbitration in accordance with subsection b. of this Section.  Arbitration in
accordance with this section may not be commenced by either party until such
executives determine

                                     - 15 -

<PAGE>

in good faith that a negotiated resolution is unlikely; provided, however, 
that if one or both parties refuse to meet within fifteen (15) days of the 
original written notice of the dispute set forth above, then arbitration may 
be instituted by either party.  Nothing herein shall prevent either party 
from exercising its right to terminate the Agreement pursuant to the 
provisions hereof.

     b.   In the event that a negotiated resolution is not reached as set forth
in subsection (a) above, the disagreement, controversy or dispute shall be
settled by binding arbitration administered by the American Arbitration
Association ("AAA") in accordance with its Commercial Rules, and judgment upon
the award rendered by the arbitrators may be entered in any court having
jurisdiction thereof.  The arbitration shall be conducted in Atlanta, Georgia,
before a panel of three (3) neutral arbitrators selected by the AAA, at least
two (2) of whom shall have experience with and knowledge of the customer care
and cable service billing industry, and at least one (1) of whom will be an
attorney, who shall be the chair of the arbitration panel.  The arbitrators will
have no authority to award punitive or any other damages not measured by the
prevailing party's actual damages, and may not, in any event make any ruling,
finding or award that does not conform to the terms and conditions of this
Agreement.  In addition, neither party nor any of the arbitrators may disclose
the existence, content or results of any arbitration hereunder without the
consent of both parties.  The award of the arbitrators shall be accompanied by a
reasoned opinion. 

     Both parties shall allow and participate in discovery in accordance with
the Federal Rules of Civil Procedure for a period of ninety (90) days after the
filing of the Answer or other responsive pleading.  Unresolved discovery
disputes may be brought to the attention of the chair of the arbitration panel,
and may be disposed of by the chair of the panel.
     c.   Notwithstanding the foregoing, either party shall have the right to
seek immediate legal redress in the event of breach of the provisions of Section
6 or Section 12 or Section 17 hereof.

14.  TERMINATION    

     a.   CableData acknowledges and agrees that the Core Software to be
provided to BIMS by CableData hereunder may be of no value to BIMS without the
Custom Software to be provided pursuant to the Software Development Agreement. 
Accordingly, in the event that the System fails to pass the acceptance testing
procedures set forth in the Software Development Agreement, CableData shall
refund to BIMS all monies paid by BIMS hereunder and under the Software
Development Agreement, which remedy shall be in addition to any other remedies
available to BIMs hereunder, under the Software Development Agreement or
otherwise available at law or in equity.  The parties agree that for purposes of
this section, the Software will be deemed to have passed the acceptance testing
procedures in the Software Development Agreement upon BIMS's acceptance of the
Custom Software as delivered by CableData pursuant to the Initial Work Order
under the Software Development Agreement.
     
     b.   Notwithstanding any other provision herein, either party will have 
the right to terminate this Agreement if the other party fails to comply with 
any of its material obligations under this Agreement.  Should a party elect 
to exercise this right to terminate for nonperformance, it must be done in 
writing specifically setting forth these items of nonperformance.  The other 
party will then have thirty (30) days from the receipt of notification to 
cure the default.  Should the defaulting party fail to correct these items of 
nonperformance, then the notifying party shall have the right to terminate 
this Agreement.  Termination of this Agreement pursuant to this provision 
shall be without prejudice to any other remedies either party may have. 

     c.   Within thirty (30) days after termination of any License for any
reason, BIMS shall

                                     - 16 -

<PAGE>

immediately cease using the Core Software and shall return or destroy the 
Core Software and Documentation.  CableData represents that BIMS will be 
capable of accessing its data following the return or destruction of the Core 
Software so long as it maintains a license to use Third Party Software as 
identified by CableData as required for access in the Third Party Software 
Attachment.  Nothing contained herein shall require BIMS to deliver to 
CableData any of BIMS's proprietary data.

     d.   In addition to BIMS's right to terminate this Agreement for breach by
CableData, BIMS shall have the right to terminate this Agreement without
incurring any early termination charges by giving CableData at least thirty (30)
days' prior written notice and certification signed by and officer of BIMS of:

          (i)  the termination/cancellation of all broadband trials by BIMS, for
      any reason, and not plans by BIMs for any trials for at least twelve (12)
      months from the date of termination/cancellation; or

      [*]

Unless otherwise specified herein, BIMS's sole and exclusive liability to
CableData with respect to 

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                     - 17 -

<PAGE>

such termination shall be limited to payment of all fees due hereunder and under
the Software Development Agreement through the effective date of the
termination.  In the event that BIMS terminates the Agreement prior to the
natural expiration of the initial term or any renewal term for any reason
other than breach by CableData, as provided for in this Agreement, or for either
of the occurrences set forth above in this Paragraph 14(d), BIMS agrees that, if
it is subject to monthly or annual License fees, it shall pay to CableData, as
an early termination fee (liquidated damages) and not as a penalty, an amount
equal to what CableData would have received under the Agreement until the end of
the term.  All payments made pursuant to this Paragraph 14 (d) shall be in the
nature of liquidated damages and shall be accepted by CableData in full
satisfaction of all claims, including but not limited to, lost profits, overhead
and other consequential damages, against BIMS arising out of termination.

     e.   Should BIMS terminate this Agreement due to material breach by
CableData, then it shall be entitled to exercise the rights provided in Section
17, Escrow, and shall be deemed to have a license to use the Core Software
without a corresponding obligation to pay periodic Maintenance.

15.  CHANGES TO THE SYSTEM
     
     a.   BIMS may at any time request CableData to change the design of the
Core Software, but CableData shall not be obligated to accede to any request of
BIMS unless, in the opinion of CableData, such changes represent a significant
benefit.

     b.   Contemporaneously with the execution of this Agreement, the parties
shall execute the Software Development Agreement.  That Agreement sets forth the
terms and conditions upon which all software development for BIMS shall be
undertaken.

     c.   CableData shall be entitled to make changes to the Software from time
to time as CableData in its discretion considers warranted by developments in
the industry in which it is used.  Subject to CableData's obligations pursuant
to Paragraph 7(e) hereof, CableData is not responsible for the inability of any
software or other products purchased or licensed from third parties, other than
software or products approved by CableData in writing, to function because of
changes to the Software.  CableData will provide to BIMS, on a periodic basis,
Software Compatibility Matrices that details any associated changes to third
party software that are part of the Operating Environment Specification that may
be required.

     d.   BIMS AGREES THAT CABLEDATA WILL HAVE THE RIGHT TO LEVY A SOFTWARE
SUPPORT SURCHARGE (ADDITIONAL CHARGE) IN THE EVENT BIMS FALLS AT LEAST EIGHTEEN
(18) MONTHS BEHIND THE RELEASE TO BIMS OF THE VERSION OF THE SOFTWARE WHICH
REPRESENTS THE COMPUTER CODE MERGED FROM THE CUSTOM SOFTWARE PROVIDED PURSUANT
TO THE SOFTWARE DEVELOPMENT AGREEMENT INTO THE THEN CURRENT MAJOR CORE SOFTWARE
RELEASE PROVIDED PURSUANT TO THE MAINTENANCE (i.e., at no cost beyond the cost
of periodic Maintenance hereunder).  As used herein, a "Major Core Software
Release" means release by CableData to its customer base of a version of the
Software which contains (i) a major revision in database structure or design; or
(ii) modification of more than 15 application programs; or (iii) changes made
pursuant to 30 or more SARs (Software Assistance Requests) or DCRs (Database
Change Requests); or (iv) in addition or modification of two or more major
components or schemes (i.e. rate codes, collections).

16.  DATA TRANSMISSION AND REMOTE FILE ACCESS

                                     - 18 -

<PAGE>

     a.   Transmission of all data to and from CableData when requested by BIMS
shall be via telecommunications or tape(s), at CableData's discretion, and at
BIMS's expense.

     b.   BIMS is responsible for the installation and cost of at least one 
(1) business grade telephone line which is to be placed at the location of 
the BIMS's Computer.  The telephone lines are to be on separate trunk lines 
not running through BIMS's switchboard or other such devices.  These 
telephone lines will be used solely for the transmission of data between any 
Support Facility and BIMS for Maintenance and Support purposes, and for 
running routines or subroutines within the Core Software, at the end of each 
month, to count the number of BIMS's Subscribers.  BIMS is responsible for 
the expense of BIMS's data communication.  It is also highly recommended that 
a telephone be installed near BIMS's Computer for purposes of Support.

17.  SOURCE CODE ESCROW

     a.   BIMS shall be entitled to a copy of the Source Code for the Core 
Software, including system libraries and other pre-existing materials needed 
to fully maintain and support the Software, and may use same for its own 
benefit (i) upon expiration of the License term and all extension terms 
provided for in Section 1 hereof, at an annual fee, to be negotiated by the 
parties, if CableData ceases to market and/or support the Core Software and 
such marketing/support is not continued by another corporation or entity, or 
is continued by another corporation or entity which BIMS for reasonable cause 
deems unsatisfactory; (ii) prior to expiration of the License term and any 
extension terms provided for in Section 1 hereof, at no additional charge if 
CableData ceases to maintain and/or support the Core Software and such 
maintenance/support is not continued by another corporation or entity, or is 
continued by another corporation or entity which BIMS for reasonable cause 
deems unsatisfactory; (iii) at no additional charge if CableData becomes 
insolvent or party to any bankruptcy or receivership proceedings or makes an 
assignment for the benefit of creditors; or (iv) should BIMS terminate this 
Agreement due to material breach by CableData.

     b.   No later than the time of CableData's delivery of the Core Software to
BIMS, CableData shall place the Source Code in escrow pursuant to an escrow
agreement to be mutually agreed and entered into prior to the date of such
delivery (the "Escrow Agreement").  The parties shall share equally all charges
incurred in establishing and maintaining such escrow account; provided, however,
that in the event the escrow account is maintained for other CableData customers
in addition to BIMS, then CableData shall bear all costs associated with such
account.  For purposes of payment under the Agreement, delivery of the Core
Software shall be deemed to include and require delivery of the copy of the
Source Code pursuant to the Escrow Agreement.  BIMS shall be entitled to receive
a copy of such Source Code under the circumstances set forth in Section 17(a)
above and pursuant to the procedures set forth in the Escrow Agreement, and may
use same for its own benefit.  If CableData corrects any defects in,  or
provides any revision to, the Core Software under this Agreement or under any
software maintenance agreement between the parties, CableData shall
simultaneously furnish the escrow agent with a corrected or revised copy of the
Source Code for the Core Software.

     c.   BIMS may periodically, but not more frequently than once per year,
trigger fresh escrow deposits.  BIMS shall reimburse CableData and the escrow
agent under the Escrow Agreement for the reasonable expenses incurred in the
preparation of such fresh escrow deposits.  In addition to triggering fresh
deposits, BIMS shall have the right, either itself or through a third party
designated by BIMS, to validate the materials on deposit upon thirty (30)
calendar days prior written notice to and in the presence of CableData, but no
more frequently than two (2) times per year.  Any third Party designated by BIMs
to validate the materials on deposit shall be required to execute a
nondisclosure agreement with CableData, in a form reasonably satisfactory to
CableData,

                                     - 19 -

<PAGE>


which nondisclosure agreement shall require that such third party's report to
BIMS contain only a non-confidential description of the results of such
validation.  Verification shall take place at CableData's convenience during
normal business hours on mutually-designated hardware.  Such verification shall
be at BIMS's expense unless the materials on deposit are not current, in which
event CableData shall bear all costs associated therewith.

    d.   The Source Code shall be in a format and on a storage medium suitable
for loading into the computer equipment described in the Operating Environment
Attachment hereto, and shall not be encrypted.  The Source Code shall include
system documentation, statements of principles of operations, and schematics,
all as necessary or useful for the effective understanding and use of the Source
Code.  Insofar as the "development environment" employed by CableData for the
development, maintenance and implementation of the Source Code includes any
device, programming, or documentation not commercially available to BIMS on
reasonable terms through readily known sources other than CableData, the Source
Code shall include all such devices, programming and documentation.  The fore-
going reference to such "development environment" is intended to apply to any
programs, including compilers, "workbenches," tools, and higher-level (or
"proprietary") languages, used by CableData for the development, maintenance,
and implementation of the Source Code.

    e.   In the event that the Source Code is released to BIMS pursuant to this
Section 17, any and all modifications to such Source Code made by or on behalf
of BIMS shall be the sole property of BIMS.

18. TRANSFER AND ASSIGNMENT

    a.   Except as otherwise provided herein, neither party shall have the
right to assign or otherwise transfer its rights or obligations under this
Agreement, by operation of law or otherwise, except with the written consent of
the other party, except that CableData shall have the right to assign to its
parent or to any wholly-owned subsidiary without such consent.  Prohibited
assignment shall be null and void.

    b.   BIMS may assign or Transfer this Agreement and its rights hereunder,
without the payment of any transfer fees or additional license fees, (i) to any
entity controlling, controlled by or under common control with BIMS, or (ii)
upon the prior written consent of CableData, which consent shall not be
unreasonably withheld, to any one or more of BIMS's other Affiliates, or (iii)
to any entity which acquires all or substantially all of BIMS's business or
Subscriber base; provided, however, that the use of the Core Software by any
such transferee(s) under this Paragraph 18(b) shall be subject to the terms of
this Agreement.

    c.   In addition to BIMS's assignment rights under this Agreement, BIMS
shall have the right to assign its rights and delegate its duties under this
Agreement either in whole or in part, at any time and without CableData's
consent, to Vanguard Cable Corp. ("Vanguard").  BIMS shall give CableData
written notice of such assignment or delegation.  Upon the written notice to
CableData, BIMS shall be released and discharged, to the extent of the
assignment, from all further duties under this Agreement.

19. MISCELLANEOUS PROVISIONS

    a.   BIMS and/or its Affiliates may, at their option from time to time, by
giving CableData prior written notice, add new or additional Computer Facilities
and Remote BIMS Sites at the prices set forth in the Pricing Attachment hereto.

                                        - 20 -
<PAGE>


    b.   BIMS agrees not to remove any Core Software from the location at which
it is originally installed, except in an emergency (and then only for the period
of the emergency), without prior written notice to CableData.  BIMS will not,
during or after the term of this Agreement, re-export or otherwise transfer the
Core Software or related technical data, or any direct products thereof, other
than in compliance with the U.S. Export Administration Regulations or other
applicable law.

    c.   This Agreement shall not be modified, amended, rescinded, canceled or
waived, in whole or in part, except by written amendment signed by both parties.

    d.   Should any clause, provision, or portion of this Agreement be ruled
invalid, void, illegal or otherwise unenforceable by any court, it shall be
deemed to be deleted and the remainder of this Agreement shall continue to be in
effect and fully enforceable.

    e.   This Agreement supersedes all prior proposals, oral or written, and
all negotiations, conversations or discussions between the parties related to
the Core Software or Services (excepting the Software Development Agreement
executed concurrently herewith).  BIMS acknowledges that it has not been induced
to enter into this Agreement by any representations or statements, oral or
written, not expressly referred to herein.  The terms and conditions of this
Agreement shall prevail, notwithstanding any variance with the terms and
conditions of any order or other instrument submitted by BIMS.

    f.   References herein to this Agreement include the Attachments, and the
headings in this Agreement are for convenience only and do not affect the
interpretation hereof.

    g.   The parties agree that in the event it is necessary to employ attorneys
to enforce the terms of this Agreement, the prevailing party in any lawsuit
shall be entitled to an award of reasonable attorneys' fees and court costs.

    h.   This Agreement will be governed in all respects by the laws of the
State of Georgia.

    i.   Regulatory Authority.  BIMS's provision of residential broadband
services will be subject to the provisions of the applicable order(s) of the
Federal Communications Commission ("FCC") and applicable tariffs.  S and its
Affiliates shall use reasonable efforts to pursue any regulatory and local
authority required to provide residential broadband services.  BIMS may
terminate this Agreement if it or its Affiliates are unable to obtain the
required approvals and authority.  Any such termination shall be as set forth in
this Agreement, and shall be without any further charge, obligation and/or
liability on the part of BIMS to CableData.

    j.   Coordination and Cooperation with other Contractors.  Throughout the
term of this Agreement, other contractors and third parties (including personnel
of BIMS) may be required to render services in or install equipment or software
at BIMS's facilities, including, but not limited to, Sybase, Inc., Scientific-
Atlanta, Inc. and Hewlett-Packard Company.  BIMS reserves the right to permit
and put such other contractors and third parties to work and to afford them
access to such facilities at such times and under such conditions as do not
unreasonably interfere with CableData.  CableData shall perform continuously and
diligently and shall so conduct and coordinate its aspects of the Agreement so
as to minimize interference with such other work. Upon CableData's receipt from
BIMS of written notice identifying contractors or other third parties with whom
CableData shall be required to cooperate (i.e., in addition to those listed
above in this Section 19(j)), together with any information and/or assistance
requested, CableData shall cooperate with BIMS in providing such information and
assistance as requested by BIMS for such coordination and cooperation in a
timely manner.  If BIMS determines that CableData is failing to coordinate its

                                        - 21 -
<PAGE>


work with the work of other contractors engaged by BIMS or is failing to
cooperate with such contractors as required by BIMS's notice, then CableData
shall be responsible for all damages, costs and expenses suffered or incurred by
BIMS directly by reason of CableData's failure.

    k.   Insurance.  CableData shall procure and maintain for itself and its 
employees all insurance coverages as required by federal or state law, 
including worker's compensation insurance.  CableData also agrees to maintain 
(a) insurance in the minimum amount of [*], for comprehensive general  
liability coverage, including blanket contractual liability, broad form 
property damage, and products and completed operations coverage, and naming 
BIMS as an additional insured, and (b) insurance in the minimum amount of [*] 
for coverage of software errors and omissions, including services rendered 
and intellectual property infringement claims, with respect to the computer 
software provided hereunder.  CableData shall furnish to BIMS a certificate 
of insurance evidencing such coverage.  Said certificate will include a 
provision whereby fifteen (15) calendar days notice must be received by BIMS 
prior to coverage change or cancellation by either CableData or the insurer.  
CableData waives its rights of subrogation against BIMS.

    l.   Notices.  Except as otherwise provided herein, and except for 
notices of failures, errors or other problems with the Software, which may be 
delivered by phone and confirmed in writing, all notices, requests, demands 
or other communications required or permitted to be given or made under this 
Agreement shall be in writing and shall be given by personal service, express 
courier (such as UPS), telecopy, or by United States certified mail, return 
receipt requested, postage prepaid to the addresses set forth below, or such 
other address as changed through written notice to the other party.

    If to BIMS:

         BellSouth Interactive Media Services, Inc.
         1100 Abernathy Road
         Suite 414, Building 500
         Atlanta, Georgia, 30328
         Attn: Mr. Larry E. Ryan
         Telecopy: (770) 481-2959

    With a copy to BIMS's General Counsel (same address); Telecopy: (770) 392-
    4575
    
    If to CableData:
    
         CableData, Inc.
         2969 Prospect Park Drive
         Rancho Cordova, California 95670
         Attn: Barry Madrid
         Telecopy: (916) 636-5750

    With a copy to CableData's General Counsel (same address); Telecopy: (916)
    636-4561

Notice given by personal service shall be deemed effective on the date it is
delivered, notice sent by express courier shall be deemed effective one Business
Day after dispatch, notice given by telecopy shall be deemed effective on the
date of transmission, and notice mailed shall be deemed effective on the third
Business Day following its placement in the mail.

m.  Counterparts.  This Agreement may be executed in any number of
counterparts,

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.
                                        - 22 -

<PAGE>

each of which, when so executed and delivered, shall be deemed an original, and
all of which shall constitute one and the same Agreement.

    n.   Remedies.  The rights and remedies of the parties set forth in this
Agreement are not exclusive and are in addition to any other rights and remedies
available to them at law or in equity.

    o.   Personnel Rules and Regulations.  While on BIMS's premises, CableData,
personnel will comply with all security practices and procedures generally
prescribed by BIMS.  In addition, unless otherwise instructed by BIMS, CableData
personnel shall observe the working hours, working rules, holiday schedules and
policies of BIMS while working on BIMS' premises.


THE FOLLOWING ATTACHMENTS ARE INTEGRAL PARTS OF THIS AGREEMENT AND ARE
INCORPORATED BY REFERENCE:


    Att A     Pricing Attachment
    Att B     Product/Services Attachment
    Att C     Maintenance/Support Attachment
    Att D     Site Attachment
    Att E     Intelecable Software Compatibility Matrix
    Att F     Capacity Reference Guidelines Attachment
    Att G     Operating Environment Attachment


IN WITNESS WHEREOF, the parties hereto have executed this Agreement effective as
of the date last set forth below.


    BELLSOUTH INTERACTIVE MEDIA   CABLEDATA, INC.
    SERVICES, INC.

    By: /s/ James R. Gadd            By: /s/ Michael McGrail
        ---------------------            -------------------------

     James Gadd                        Michael F. McGrail
    -------------------------        -----------------------------
         Print Name                         Print Name

     President                         President
    -------------------------        -----------------------------
         Title                              Title

     December 22, 1995                 December 27, 1995
    -------------------------        -----------------------------
         Date                               Date

                                        - 23 -

<PAGE>

INTELECABLE PRICING ATTACHMENT                              ATTACHMENT A

[*]


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

12/20/95
                                         A-1                    Confidential

<PAGE>

INTELECABLE PRICING ATTACHMENT                              ATTACHMENT A

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

12/20/95
                                         A-2                    Confidential

<PAGE>

INTELECABLE PRICING ATTACHMENT                              ATTACHMENT A

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

12/20/95                                 A-3                    Confidential

<PAGE>


INTELECABLE PRICING ATTACHMENT                              ATTACHMENT A

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

12/20/95                                                  Confidential   


<PAGE>

INTELECABLE PRICING ATTACHMENT                              ATTACHMENT A

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

12/20/95                                 A-5                    Confidential


<PAGE>

INTELECABLE PRICING ATTACHMENT                              ATTACHMENT A

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

12/20/95                                 A-6                    Confidential


<PAGE>

INTELECABLE PRICING ATTACHMENT                              ATTACHMENT A

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

12/20/95                                 A-7                    Confidential


<PAGE>

INTELECABLE PRICING ATTACHMENT                              ATTACHMENT A

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

12/20/95                                 A-8                    Confidential


<PAGE>

PRODUCT/SERVICES                                             ATTACHMENT B

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                           Intelecable Basic System Content
12/8/95                         CableData Confidential                    1


<PAGE>

PRODUCT/SERVICES                                             ATTACHMENT B

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                          Intelecable Optional ModuleContent
12/8/95                        CableData Confidential                       2 


<PAGE>


INTELECABLE MAINTENANCE AND SUPPORT                         ATTACHMENT C    

These Maintenance and Support provisions are in addition to Section 9 of the
License Agreement and Sections 15 and 16 of the Software Development Agreement. 
In the event of a conflict between this attachment and either the License
Agreement or the Software Development Agreement, the License Agreement or the
Software Development Agreement as applicable will apply.
 
                                     DEFINITIONS

1.  MAINTENANCE: Bug fixes, correction of defects, including those that impede
    the ability to access files or perform routine operations using the
    Software, and periodic issuance of Maintenance Releases.  Excluded from
    Maintenance are (a) operational procedures for loading and shutting down
    the computer system; (b) setting computer operating system command
    parameters; (c) nightly procedures for database backup and file
    maintenance; (d) defining whether any problems are hardware or Software-
    based; (e) database recovery necessitated by an operating system software
    or operational problem; (f) balancing file allocation and disk space 
    management; (g) conducting performance analysis of the computer system. 
    These operational support services are available at CableData's then 
    current prices.

2.  SUPPORT: Telephone Support for problems encountered in the use of the 
    Software, as defined and described in the Agreement.  Support services 
    beyond the scope of normal Telephone Support are:
    -    Assistance on the general usage of any or all components in the  
         Software where adequate assistance is provided by the Documentation.
    -    Assistance on the administration and management of any or all 
         components in the Software where adequate assistance is provided by
         the Documentation.
    -    Assistance in performing problem determination, isolation and    
         resolution of problems unrelated to the Software.
    -    Customized training programs.


                             PROBLEM SOLUTION OBJECTIVES

SEVERITY LEVELS         DESCRIPTION               CABLEDATA DEFECT ISOLATION,
                                                  CONFIRMATION, AND FIX
- -------------------------------------------------------------------------------
1. System Down          System Down, Cannot Do    Immediately
                        Business                 
- -------------------------------------------------------------------------------
2. High Impact, No      Business Function Cannot  ASAP-Between Maintenance
   Workaround           Be Performed              Releases

- -------------------------------------------------------------------------------
3. High Impact,         Heavily Impacted, Can    Next Maintenance Release
   Workaround           Do Daily Business        
- -------------------------------------------------------------------------------
4. Low Impact,          Slightly Impacted, Can   Deferred; Future Maintenance
   Workaround           Do Daily Business        Release
- -------------------------------------------------------------------------------
5. No Impact            No Impact On Daily       Possible; Future Maintenance
                        Business                 Release


                                       COVERAGE

- -   SOFTWARE: BIMS has elected to purchase 24 hours per day x 7 days/week x 365
    day/year Telephone Support for the Software as defined in the Agreement. 
    Telephone Support calls to the Support Facility will be handled, 
    immediately or returned within an average of sixty (60) minutes by a 
    qualified CableData employee.

- -   CableData will support the current release of Intelecable Core Software, as
    well as the prior major release. Maintenance for older releases will be 
    provided by CableData subject to the limitations set forth in the 
    Agreement.

    Telephone Support covers the Core and Custom Software licensed under this
    Agreement and the Software Development Agreement and does not include 
    support of any computer operating system software.


12/8/95                                  C-1


<PAGE>


INTELECABLE MAINTENANCE AND SUPPORT                        ATTACHMENT C

- -   Third-Party Software: Third-party software (i.e., Oracle-Registered 
    Trademark - and Tuxedo-Registered Trademark-)should be licensed directly
    from the licensor, who will be primarily responsible for supporting the 
    licensed product. Telephone support may be provided by CableData, however,
    if Customer actually licenses the third-party software from CableData and 
    contracts for CableData to provide support for such software.

                              CUSTOMER RESPONSIBILITIES

- -   Customer is responsible for performing problem determination and isolation 
    procedures to determine whether the problem is attributed to a component 
    covered by CableData Maintenance or Support.  Customers may be charged for 
    Maintenance and Support, on a time and materials basis, if a problem is 
    logged by CableData and found to be attributable to a component NOT covered
    by CableData Maintenance or Support.  Such charges will be assessed only if 
    CableData has notified the Customer that the problem is not covered and the
    Customer has elected to use CableData for support.

- -   Customer must provide individuals in its site(s) who have attended the 
    required CableData classes listed by job category on pages 3-5 of this 
    attachment, with whom CableData will deal.  Cabledata recommends that BIMS 
    maintain a level of expertise to property utilize the Core Software during 
    the term of the Agreement.  Customer must designate, by name, specific 
    individuals who may contact CableData for Maintenance and Support.  These 
    individuals are to be listed below and should be certified by CableData 
    based on completing required courses indicated in pages 3-5 of this 
    attachment.  CableData may not support Maintenance or Support requests from
    individuals who are not listed.  BIMS may add names as individuals become 
    certified.


                                        CHARGES

- -   CABLEDATA'S INTELECABLE CORE SOFTWARE AND CUSTOM SOFTWARE: Fees for
    Maintenance and Support are set forth in the Pricing Attachment. Additional
    support (for problems that are outside the scope of normal Telephone
    Support) is billed on an hourly time and materials basis.  There will be no
    charge for Maintenance and Support of the Software during the Warranty
    Period and for a period of six years thereafter for Custom Software.

- -   THIRD-PARTY SOFTWARE:  If Customer contracts with CableData to provide 
    Support, an annual Support fee is charged.  Support outside the scope of a 
    contract is performed on an hourly time and materials basis.  Maintenance 
    is provided only if the third-party software is licensed from CableData and
    Customer pays the required annual Maintenance fee for such software.

    CUSTOMER CONTACTS:

    Name:_____________________    Title:______________________
    Name:_____________________    Title:______________________
    Name:_____________________    Title:______________________



                                         C-2


<PAGE>

INTELECABLE MAINTENANCE AND SUPPORT                         ATTACHMENT C


                             Intelecable Training Matrix

<TABLE>
<CAPTION>

                                                INTELECABLE COURSEWARE MODULES(2)

TARGET                  INTELECABLE    DAILY       SYSTEM       STANDARD  TELEPHONY   PROJECTS     NETWORK
GROUP(1)                 OVERVIEW      PROCESSING  MANAGEMENT   REPORTS   MANAGEMENT  MANAGEMENT   MANANGEMENT    
- ---------------------------------------------------------------------------------------------------------------
- ---------------------------------------------------------------------------------------------------------------
<S>                     <C>            <C>         <C>          <C>       <C>         <C>          <C>
I.THE CUSTOMER SERVICE  
  GROUP
- ---------------------------------------------------------------------------------------------------------------
CUSTOMER SERVICE        REQUIRED       REQUIRED
REPRESENTATIVE
- ----------------------------------------------------------------------------------------------------------------
CUTSOMER SERVICE        REQUIRED       REQUIRED     REQUIRED    REQUIRED  REQUIRED     REQUIRED    OPTIONAL
MANAGEMENT
- ----------------------------------------------------------------------------------------------------------------
- ----------------------------------------------------------------------------------------------------------------
II.THE ENGINEERING      
   GROUP
- ----------------------------------------------------------------------------------------------------------------
FIELD SERVICE           REQUIRED       REQUIRED                                                    REQUIRED
DISPATCHER
- ----------------------------------------------------------------------------------------------------------------
FIELD SERVICE           REQUIRED       REQUIRED     REQUIRED    REQUIRED               OPTIONAL    REQUIRED
MANAGEMENT
- ----------------------------------------------------------------------------------------------------------------
STORES AND INVENTORY    REQUIRED       OPTIONAL                      
- ----------------------------------------------------------------------------------------------------------------
- ----------------------------------------------------------------------------------------------------------------
III.THE TELEPHONY GROUP 
- ----------------------------------------------------------------------------------------------------------------
BUSINESS TELEPHONY      REQUIRED       REQUIRED     REQUIRED    REQUIRED   REQUIRED    REQUIRED    OPTIONAL
- ----------------------------------------------------------------------------------------------------------------
TELEPHONY NETWORK       REQUIRED       OPTIONAL                            REQUIRED    REQUIRED    REQUIRED
SUPPORT
- ----------------------------------------------------------------------------------------------------------------
- ----------------------------------------------------------------------------------------------------------------
IV.THE FINANCIAL GROUP
- ----------------------------------------------------------------------------------------------------------------
CREDIT CONTROL          REQUIRED       REQUIRED                 OPTIONAL
- ----------------------------------------------------------------------------------------------------------------
DEBT COLLECTION         REQUIRED       REQUIRED                 OPTIONAL
- ----------------------------------------------------------------------------------------------------------------
PAYMENT COUNTER         REQUIRED       REQUIRED
REPRESENTATIVE
- ----------------------------------------------------------------------------------------------------------------
ACCOUNTS MANAGEMENT     REQUIRED       REQUIRED     OPTIONAL    OPTIONAL    OPTIONAL   OPTIONAL
- ----------------------------------------------------------------------------------------------------------------
- ----------------------------------------------------------------------------------------------------------------
V.THE SALES GROUP
- ----------------------------------------------------------------------------------------------------------------
SALES FORCE             REQUIRED       OPTIONAL
- ----------------------------------------------------------------------------------------------------------------
SALES MANAGEMENT        REQUIRED       OPTIONAL                 REQUIRED
- ----------------------------------------------------------------------------------------------------------------
- ----------------------------------------------------------------------------------------------------------------
VI.THE MARKETING GROUP
- ----------------------------------------------------------------------------------------------------------------
MARKETING COORDINATOR   REQUIRED       OPTIONAL                 REQUIRED
- ----------------------------------------------------------------------------------------------------------------
MARKETING MANAGEMENT    REQUIRED       OPTIONAL                 REQUIRED
- ----------------------------------------------------------------------------------------------------------------
- ----------------------------------------------------------------------------------------------------------------
VII.THE DATA PROCESSING
    GROUP
- ----------------------------------------------------------------------------------------------------------------
DATA PROCESSING STAFF   REQUIRED       REQUIRED      REQUIRED   REQUIRED     REQUIRED    REQUIRED     REQUIRED
- ----------------------------------------------------------------------------------------------------------------
DATABASE ADMINISTRATOR  REQUIRED       OPTIONAL      OPTIONAL   OPTIONAL     OPTIONAL    OPTIONAL     OPTIONAL
- ----------------------------------------------------------------------------------------------------------------
DATA PROCESSING         REQUIRED       REQUIRED      REQUIRED   REQUIRED     REQUIRED    REQUIRED     REQUIRED
MANAGEMENT
- ----------------------------------------------------------------------------------------------------------------
- ----------------------------------------------------------------------------------------------------------------
VIII.THE SENIOR
    MANAGEMENT GROUP
- ----------------------------------------------------------------------------------------------------------------
GENERAL MANAGER         OPTIONAL
- ----------------------------------------------------------------------------------------------------------------
SENIOR MANAGEMENT       OPTIONAL       OPTIONAL                 OPTIONAL
- ----------------------------------------------------------------------------------------------------------------
- ----------------------------------------------------------------------------------------------------------------


(1) The Target Group represents a generic structure of the end-user's organization. 
    However, the cross-section of responsibilities generally remains valid to the
    Cable Television and Telephony industries.  Intelecable training is targeted to
    the individual and departmental responsibilities and can be customized to meet
    the end-user's business structure.

(2) The Intelecable Courseware Modules are a set of sixteen (16) training modules. 
    Oracle-Registered Trademark- RDBMS Management and IBM-Registered 
    Trademark- AIX-Trade Mark- are the responsibility of the end-
    users and can be scheduled through the local Oracle-Registered Trademark- 
    and IBM-Registered Trademark- offices respectively.

</TABLE>
                                       C-1


<PAGE>

                             Intelecable Training Matrix - Continued
<TABLE>
<CAPTION>


                                                INTELECABLE COURSEWARE MODULES(2)

TARGET                  THE CHARGING   COLLECTIONS   MONEY      ADDRESS SHARING FINANCIAL   PAY-PER-VIEW      MIS
GROUP(1)                 PROCESS       MANAGEMENT   PROCESSING     MANAGEMENT   REPORTS     MANANGEMENT     PROCESSES
- ---------------------------------------------------------------------------------------------------------------
- ---------------------------------------------------------------------------------------------------------------
<S>                     <C>            <C>         <C>          <C>       <C>         <C>          <C>
I.THE CUSTOMER SERVICE  
  GROUP
- ---------------------------------------------------------------------------------------------------------------
CUSTOMER SERVICE        
REPRESENTATIVE
- ----------------------------------------------------------------------------------------------------------------
CUTSOMER SERVICE        REQUIRED       REQUIRED     REQUIRED     OPTIONAL                    REQUIRED
MANAGEMENT
- ----------------------------------------------------------------------------------------------------------------
- ----------------------------------------------------------------------------------------------------------------
II.THE ENGINEERING      
   GROUP
- ----------------------------------------------------------------------------------------------------------------
FIELD SERVICE                                                    OPTIONAL                    OPTIONAL
DISPATCHER
- ----------------------------------------------------------------------------------------------------------------
FIELD SERVICE                                                    REQUIRED                    REQUIRED 
MANAGEMENT
- ----------------------------------------------------------------------------------------------------------------
STORES AND INVENTORY                                             REQUIRED  
- ----------------------------------------------------------------------------------------------------------------
- ----------------------------------------------------------------------------------------------------------------
III.THE TELEPHONY GROUP 
- ----------------------------------------------------------------------------------------------------------------
BUSINESS TELEPHONY      REQUIRED       REQUIRED     REQUIRED                 REQUIRED   
- ----------------------------------------------------------------------------------------------------------------
TELEPHONY NETWORK       
SUPPORT
- ----------------------------------------------------------------------------------------------------------------
- ----------------------------------------------------------------------------------------------------------------
IV.THE FINANCIAL GROUP
- ----------------------------------------------------------------------------------------------------------------
CREDIT CONTROL          OPTIONAL       OPTIONAL     REQUIRED
- ----------------------------------------------------------------------------------------------------------------
DEBT COLLECTION         OPTIONAL       REQUIRED     REQUIRED    
- ----------------------------------------------------------------------------------------------------------------
PAYMENT COUNTER         
REPRESENTATIVE
- ----------------------------------------------------------------------------------------------------------------
ACCOUNTS MANAGEMENT     REQUIRED       REQUIRED     REQUIRED                  REQUIRED       OPTIONAL   
- ---------------------------------------------------------------------------------------------------------------
- ----------------------------------------------------------------------------------------------------------------
V.THE SALES GROUP
- ----------------------------------------------------------------------------------------------------------------
SALES FORCE             
- ----------------------------------------------------------------------------------------------------------------
SALES MANAGEMENT                                                                             OPTIONAL 
- ----------------------------------------------------------------------------------------------------------------
- ----------------------------------------------------------------------------------------------------------------
VI.THE MARKETING GROUP
- ----------------------------------------------------------------------------------------------------------------
MARKETING COORDINATOR                                                                        OPTIONAL
- ----------------------------------------------------------------------------------------------------------------
MARKETING MANAGEMENT                                                                         OPTIONAL
- ----------------------------------------------------------------------------------------------------------------
- ----------------------------------------------------------------------------------------------------------------
VII.THE DATA PROCESSING
    GROUP
- ----------------------------------------------------------------------------------------------------------------
DATA PROCESSING STAFF   REQUIRED       REQUIRED      REQUIRED   REQUIRED     REQUIRED    REQUIRED     REQUIRED
- ----------------------------------------------------------------------------------------------------------------
DATABASE ADMINISTRATOR  OPTIONAL       OPTIONAL      OPTIONAL   OPTIONAL     OPTIONAL    OPTIONAL     REQUIRED
- ----------------------------------------------------------------------------------------------------------------
DATA PROCESSING         REQUIRED       REQUIRED      REQUIRED   REQUIRED     REQUIRED    REQUIRED     REQUIRED
MANAGEMENT
- ----------------------------------------------------------------------------------------------------------------
- ----------------------------------------------------------------------------------------------------------------
VIII.THE SENIOR
    MANAGEMENT GROUP
- ----------------------------------------------------------------------------------------------------------------
GENERAL MANAGER        
- ----------------------------------------------------------------------------------------------------------------
SENIOR MANAGEMENT      
- ----------------------------------------------------------------------------------------------------------------
- ----------------------------------------------------------------------------------------------------------------


(1) The Target Group represents a generic structure of the end-user's 
    organization. However, the cross-section of responsibilities generally 
    remains valid to the Cable Television and Telephony industries.  
    Intelecable training is targeted to the individual and departmental 
    responsibilities and can be customized to meet the end-user's business 
    structure.

(2) The Intelecable Courseware Modules are a set of sixteen (16) training 
    modules. Oracle-Registered Trademark- RDBMS Management and IBM-Registered
    Trademark- AIX-Trade Mark- are the responsibility of the end-users and can
    be scheduled through the local Oracle--Registered Trademark- and 
    IBM-Registered Trademark- offices respectively.

</TABLE>
                                             C-2

<PAGE>

INTELECABLE MAINTENANCE AND SUPPORT                              ATTACHMENT C
- ------------------------------------------------------------------------------

                             Intelecable Training Matrix - Continued
<TABLE>
<CAPTION>


                                                INTELECABLE COURSEWARE MODULES(2)

TARGET                      xxx         INTELECABLE   ORACLE-Registered Trademark-     IBM-Registered Trademark-
GROUP(1)                   MANAGEMENT    DATABASE     MANAGEMENT    AIX-Trade Mark-    
- ---------------------------------------------------------------------------------------------------------------
- ---------------------------------------------------------------------------------------------------------------

<S>                       <C>           <C>           <C>          <C>      
I.THE CUSTOMER SERVICE  
  GROUP
- ---------------------------------------------------------------------------------------------------------------
CUSTOMER SERVICE        
REPRESENTATIVE
- ----------------------------------------------------------------------------------------------------------------
CUTSOMER SERVICE          REQUIRED    
MANAGEMENT
- ----------------------------------------------------------------------------------------------------------------
- ----------------------------------------------------------------------------------------------------------------
II.THE ENGINEERING      
   GROUP
- ----------------------------------------------------------------------------------------------------------------
FIELD SERVICE             OPTIONAL
DISPATCHER
- ----------------------------------------------------------------------------------------------------------------
FIELD SERVICE             REQUIRED     
MANAGEMENT
- ----------------------------------------------------------------------------------------------------------------
STORES AND INVENTORY    
- ----------------------------------------------------------------------------------------------------------------
- ----------------------------------------------------------------------------------------------------------------
III.THE TELEPHONY GROUP 
- ----------------------------------------------------------------------------------------------------------------
BUSINESS TELEPHONY      
- ----------------------------------------------------------------------------------------------------------------
TELEPHONY NETWORK       
SUPPORT
- ----------------------------------------------------------------------------------------------------------------
- ----------------------------------------------------------------------------------------------------------------
IV.THE FINANCIAL GROUP
- ----------------------------------------------------------------------------------------------------------------
CREDIT CONTROL          
- ----------------------------------------------------------------------------------------------------------------
DEBT COLLECTION         
- ----------------------------------------------------------------------------------------------------------------
PAYMENT COUNTER         
REPRESENTATIVE
- ----------------------------------------------------------------------------------------------------------------
ACCOUNTS MANAGEMENT  
- ----------------------------------------------------------------------------------------------------------------
- ----------------------------------------------------------------------------------------------------------------
V.THE SALES GROUP
- ----------------------------------------------------------------------------------------------------------------
SALES FORCE             
- ----------------------------------------------------------------------------------------------------------------
SALES MANAGEMENT          OPTIONAL    
- ----------------------------------------------------------------------------------------------------------------
- ----------------------------------------------------------------------------------------------------------------
VI.THE MARKETING GROUP
- ----------------------------------------------------------------------------------------------------------------
MARKETING COORDINATOR   
- ----------------------------------------------------------------------------------------------------------------
MARKETING MANAGEMENT    
- ----------------------------------------------------------------------------------------------------------------
- ----------------------------------------------------------------------------------------------------------------
VII.THE DATA PROCESSING
    GROUP
- ----------------------------------------------------------------------------------------------------------------
DATA PROCESSING STAFF     REQUIRED       OPTIONAL      REQUIRED    REQUIRED   
- ----------------------------------------------------------------------------------------------------------------
DATABASE ADMINISTRATOR    OPTIONAL       REQUIRED      REQUIRED    REQUIRED 
- ----------------------------------------------------------------------------------------------------------------
DATA PROCESSING           REQUIRED       REQUIRED      REQUIRED    REQUIRED    
MANAGEMENT
- ----------------------------------------------------------------------------------------------------------------
- ----------------------------------------------------------------------------------------------------------------
VIII.THE SENIOR
    MANAGEMENT GROUP
- ----------------------------------------------------------------------------------------------------------------
GENERAL MANAGER        
- ----------------------------------------------------------------------------------------------------------------
SENIOR MANAGEMENT      
- ----------------------------------------------------------------------------------------------------------------
- ----------------------------------------------------------------------------------------------------------------



(1) The Target Group represents a generic structure of the end-user's 
    organization. However, the cross-section of responsibilities generally 
    remains valid to the Cable Television and Telephony industries.  Intelecable
    training is targeted to the individual and departmental responsibilities and
    can be customized to meet the end-user's business structure.

(2) The Intelecable Courseware Modules are a set of sixteen (16) training 
    modules. Oracle-Registered Trademark- RDBMS Management and IBM-Registered 
    Trademark- AIX-Trade Mark- are the responsibility of the end-users and can 
    be scheduled through the local Oracle-Registered Trademark- and 
    IBM-Registered Trademark- offices respectively.

</TABLE>
                                               C-3
<PAGE>

INTELECABLE SITE ATTACHMENT                           ATTACHMENT D
- ------------------------------------------------------------------
                                         CUSTOMER SITES ATTACHMENT
CableData's Intelecable-Trade Mark- Master Operating and 
Licensing Agreement

Date: December 8, 1995
Corp. Number: 360-01

The Customer sites subject to this Agreement and the associated hardware
and software installed are as follows:

Computer Facility:                                Bell South
System Number:                                    360-01
Installation Address:                             1100 Abernathy Road, Suite 414
                                                  500 Northpark Town Center
City, State:                                       Atlanta, GA 30328


Remote Facility:                                  n/a
System Number:
Installation Address:
City, State:


<PAGE>

INTELECABLE SOFTWARE COMPATABILITY MATRIX                       ATTACHMENT E

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                                 Page E-1

<PAGE>

INTELECABLE SOFTWARE COMPATABILITY MATRIX                       ATTACHMENT E

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                                 Page E-2

<PAGE>

INTELECABLE SOFTWARE COMPATABILITY MATRIX                       ATTACHMENT E

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                                 Page E-3

<PAGE>

INTELECABLE SOFTWARE COMPATABILITY MATRIX                       ATTACHMENT E

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                                 Page E-4

<PAGE>

INTELECABLE SOFTWARE COMPATABILITY MATRIX                       ATTACHMENT E

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                                 Page E-5

<PAGE>

INTELECABLE SOFTWARE COMPATABILITY MATRIX                       ATTACHMENT E

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                                 Page E-6

<PAGE>

CAPACITY REFERENCE GUIDELINES                                    ATTACHMENT F

The following are provided as capacity and reliability guidelines and are not 
a warranty for performance. They are offered to BIMS as a guide in 
determining whether or not analysis and corrective action are indicated. Any 
further Software releases may require additional resources as described in 
Paragraph 7.f.(i) of the Agreement. Such corrective action might include 
adding hardware or software or reconfiguring the OS or the RDBMS. CableData 
would consult with BIMS on the most cost effective course of action for BIMS 
to pursue.

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                        - 1 -
<PAGE>

CAPACITY REFERENCE GUIDELINES                                     ATTACHMENT F


[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                        - 2 -


<PAGE>
                                                                   ATTACHMENT G

                      BIMS INTELECABLE OPERATING ENVIRONMENT

IBM 590

     AIX 3.2.5 Operating System
     Oracle 7.0.1.6
     Tuxedo /T v 4.2.1
     Tuxedo /Q v4.2.1
     Intelecable
     512MB Ram
     6GB Disk

The IBM 590 is used as a test and development environment for the Intelecable 
subscriber management system. The IBM 590 interfaces with the Sybase Staging 
Server which runs on an HP G70. Connectivity is standard TCP\IP-based, with 
Tuxedo acting as the interface software for API's used by Sybase and 
CableData.

The IBM 590 may, on a temporary basis, be connected to the Scientific Atlanta 
SM10 via an RS-232 link for testing the provision of Analog Channel 
Authorizations.

The IBM 590 is connected to the BIMS office network using TCP/IP. A 
QuickScreen Plus emulator provided by CableData, running on Intel-based pc's, 
is used to access the Intelecable application.

IBM RS 6000 - SP2
     AIX 3.2.5 Operating System
     HACMP 3.1.1
     Oracle 7.0.1.6
     Tuxedo /T v 4.2.1
     Tuxedo /Q v4.2.1
     Intelecable
     Per node: 1GB Ram
     12 GB Disk

The IBM SP2 is the production machine for the Intelecable subscriber 
management system. The SP2 is running with multiple nodes using High 
Availability Rotating mode, although plans are to run it in Concurrent Mode. 
The IBM SP2 interfaces with the Sybase Staging Server, which runs on an HP 
E45 at present but may move to an HPG70. Connectivity is standard 
TCP/IP-based, with Tuxedo acting as the interface software for API's used by 
Sybase and CableData. The IBM Sp2 is connected to the Scientific Atlanta SM10 
via an RS-232 link.

The IBM SP2 is connected to the BIMS office network using TCP/IP. A 
QuickScreen Plus emulator provided by CableData, running on Intel-based pc's, 
is used to access the Intelecable application.

HP G70
     HP-UX operating system
     Sybase System 10
     Sybase Replication Server
     Sybase Open Client/Server
     Tuxedo / WS
     Custom API's
     512MB Ram
     8GB Disk

                                    G-1

<PAGE>

The HP G70 contains the HP MediaStream Server and Sybase IMS (Intermedia 
Server), and may contain the Sybase Staging Server. The Staging Server 
contains the Replication Server, the Staging Database, and the External 
Business Systems Accessors. External Business Systems Accessors are API's 
used to connect to the Intelecable application via Tuxedo for passing 
customer information, including authorizations, and billing transactions with 
the Intelecable subscriber management system.

Scientific Atlanta SM10
DOS 6.2
Windows 3.1
IBM PS2
 The Scientific Atlanta System Manager 10 (SM10) is used to manage the analog 
functions of all set-top boxes connected to the BIMS network. Specific 
management functions include the following:
     Channel Authorizations
     Set Top Box Auditing
     Set Top Box Reinitialization

The IBM SP2 is connected to the Scientific Atlanta SM10 via an RS-232 link.
HP-E45(MKIS)
     HP-UX operating system
     Oracle 7.0.1.6
     Tuxedo / WS
     Sybase Replication Server
     Sybase Open Client/Server
     Custom API's
     64MB Ram
     6GB Disk

The HP-E45 is used to run the Marketing Information System (MKIS). The MKIS 
system is part of the BIMS network and as such will receive information from 
the Intelecable subscriber management system. In addition, the Sybase Staging 
Server currently runs on the E45. The Staging Server contains the Replication 
Server, the Staging Database, and the External Business Systems Accessors. 
External Business Systems Accessors are API's used to connect to the 
Intelecable application via Tuxedo for passing customer information, 
including authorizations, and billing transactions with the Intelecable 
subscriber management system.

Intel Based Pcs (486 and Pentium processors)
DOS 6.2
Windows for Workgroups 3.11
Quick Screen Plus for Windows version 3.11a
486 and Pentium processors
8MB Ram
327MB Disk

Various pcs will be used on the BIMS network for accessing the Intelecable 
subscriber management system.

Intel Based PC (Pentium Processors)
DOS 6.2
Windows NT 3.51
Tuxedo for Windows NT
Custom API's

This machine will access the API's Get Account and Send Transaction. Billing 
transactions will be formatted on this and sent to ITC for processing via the 
Send Transaction API. Customer information will be obtained via the Get 
Account API.

                                    G-2
  

<PAGE>


                                                          EXHIBIT 10.30

<PAGE>


                       SOFTWARE LICENSE AND SERVICES AGREEMENT

This Software License and Services Agreement (the "Agreement") is between Oracle
Corporation with its principal place of business at 500 Oracle Parkway, Redwood
City, California  94065 ("Oracle") and U.S. COMPUTER SERVICES (legal name) with
its principal place of business at 11020 SUN CENTER DRIVE, RANCHO CORDOVA, CA
95670 ("Client").  The terms of this Agreement shall apply to each Program
license granted and to all services provided by Oracle under this Agreement.
When completed and executed by both parties, an Order Form shall evidence the
Program licenses granted and the services that are to be provided.

I.    DEFINITIONS

1.1.   "Program" or "Programs" shall mean the computer software in object code
      form owned or distributed by Oracle for which Client is granted a license
      pursuant to this Agreement; the user guides and manuals for use of the
      software ("Documentation"); and Updates.

1.2.  "Order Form" shall mean the document by which Client orders Program
      licenses and services, and which is agreed to by the parties.  The Order
      Form shall reference the Effective Date of this Agreement.

1.3.  "Price List" shall mean Oracle's standard commercial fee schedule that is
      in effect when a Program license or any other products or services are
      ordered by Client.

1.4.  "Designated System" shall mean the computer hardware and operating system
      designated on the relevant Order Form.

1.5.  "Supported Program License" shall mean a Program license for which Client
      has ordered Technical Support for the relevant time period.   "Technical
      Support" shall mean Program support provided under Oracle's policies in
      effect on the date Technical Support is ordered.

1.6.  "Commencement Date" shall mean the date on which the Programs are
      delivered to Client, or if no delivery is necessary, the Effective Date
      set forth on the relevant Order Form.

1.7.  "Update(s)" shall mean subsequent releases of the Programs which are
      generally made available for Supported Program Licenses at no additional
      charge, other than media and handling charges.  Updates shall not include
      any releases, options or future products which Oracle licenses
      separately.

1.8.  "User", unless otherwise specified in the Order Form, shall mean a
      specific individual employed by Client who is authorized by Client to use
      the Programs, regardless of whether the individual is actively using the
      Programs at any given time.

1.9.  "Application Programs" shall be Programs designated as application
      software by Oracle.

1.10. "Limited Production Programs" shall be Programs not specified on the
      Price List or specified as Limited Production, Tier 3 or with special
      restrictions on the Price List.

II.   PROGRAM LICENSE

2.1.  RIGHTS GRANTED

      A.     Oracle grants to Client a nonexclusive license to use the Programs
             Client obtains under this Agreement, as follows:

             i.     to use the Programs solely for Client's own internal data
                    processing operations on the Designated System or on a
                    backup system if the Designated System is inoperative, up
                    to any applicable maximum number of designated Users (if
                    any User limitation applies).  Client may not use the
                    Programs for third-party training, commercial timesharing,
                    rental or service bureau use;

             ii.    to use the Documentation provided with the Programs in
                    support of Client's authorized use of the Programs;

             iii.   to copy the Programs for archival or backup purposes; no
                    other copies shall be made without Oracle's prior written
                    consent.  All titles, trademarks, and copyright and
                    restricted rights notices shall be reproduced in such
                    copies.  All archival and backup copies of the Programs are
                    subject to the terms of this Agreement; and

             iv.    to modify the Programs or combine them with other software
                    products.  The Programs or such portions thereof included
                    in such derivative software products shall remain the
                    property of Oracle and shall be governed by the terms of
                    this Agreement.

      Client shall not copy or use the Programs (including the Documentation)
      except as otherwise specified in this Agreement.

      B.     Client agrees not to cause or permit the reverse engineering,
             disassembly or decompilation of the Programs.

      C.     Oracle shall retain all title, copyright and other proprietary
             rights in the Programs. Client does not acquire any rights,
             express or implied, in the Programs, other than those specified in
             this Agreement.

      D.     The Programs are not intended for use in any nuclear aviation,
             mass transit, medical or  other inherently dangerous applications.
             It shall be Client's responsibility to take all  appropriate
             measures to ensure the safe use of such applications if the
             Programs are used  for such purposes, and Oracle disclaims
             liability for any damages caused by such use of  the Programs.

      E.     To use a Program specified on an Order From ("ordered Program"),
             Client may need to  use an ancillary Program embedded in or
             delivered with the ordered Program.  The  ancillary Program may be
             used only as described in the Order Form or Documentation  for
             implementation of the ordered Program and for no other purpose.
             Client shall have  no right to use any other software Program that
             may be delivered with ordered Programs.

2.2.  ACCEPTANCE OF PROGRAM
      For each Program License for which delivery is required under this
      Agreement, Client shall have a 15 day Acceptance Period, beginning on the
      Commencement Date, in which to evaluate the Program.  During the
      Acceptance Period, Client may cancel the license by giving written notice
      to Oracle and returning the Program in accordance with paragraph 4.5
      below.  Unless such cancellation notice is given, the license will be
      deemed to have been accepted by Client at the end of the Acceptance
      Period, if

<PAGE>


      Client is granted a right to copy license and no delivery is necessary,
      subsequent copies shall be deemed accepted upon acceptance of the master
      copy.

2.3.  TRANSFER AND ASSIGNMENT

      A.     Within the United States, a Program license may be transferred to
             another computer system of like configuration (same model and
             operating system), or the Designated System may be transferred to
             another location within Client's organization, upon written notice
             to Oracle.  All other transfers, including transfer of a Program
             license outside the United States, shall be permitted only with
             Oracle's prior written consent and shall be subject to Oracle's
             standard transfer fees in effect at the time of the transfer.

      B.     The rights granted herein are restricted for use solely by Client.
             Client may not authorize or allow the use or the remarketing of
             the Programs by a third party, and may not assign or transfer the
             Programs or the Agreement to a third party, without the prior
             written consent of Oracle.

2.4.  VERIFICATION
      On Oracle's written request, not more frequently than annually, Client
      shall furnish Oracle with a signed certification (a) verifying that the
      programs are being used pursuant to the provisions of this Agreement,
      including any User limitations; and (b) listing the locations, types and
      serial numbers of the Designated Systems on which the Programs are run.

      Oracle may, at its expense, audit Client's use of the Programs.  Any such
      audit shall be conducted during regular business hours at Client's
      facilities and shall not unreasonably interfere with Client's business
      activities.  If an audit reveals that Client has underpaid fees to
      Oracle, Client shall be invoiced for such underpaid fees based on the
      Price List in effect at the time the audit is completed; if the underpaid
      fees exceed 5% of the license fees paid, then Client shall also pay
      Oracle's reasonable costs of conducting the audit.  Audits shall be
      conducted no more than once annually.

III.  TECHNICAL SERVICES

3.1.  TECHNICAL SUPPORT SERVICES
      Technical Support services ordered by Client will be provided under
      Oracle's Technical Support policies in effect on the date Technical
      Support is ordered, subject to the payment by Client of the applicable
      fees.  At Client's request, Oracle will provide remote assistance in the
      installation of each Supported Program license.  Reinstatement of lapsed
      Technical Support services is subject to Oracle's Technical Support
      reinstatement fees in effect on the date Technical Support is re-ordered.
      Limited Production Programs and pre-production releases of Programs may
      not be eligible for standard Technical Support services; Client may
      obtain Technical Support services for Limited Production Programs on a
      time and materials basis.

3.2.  CONSULTING AND TRAINING SERVICES
      Oracle will provide consulting and training services agreed to by the
      parties under the terms of this Agreement.  All consulting services shall
      be billed on a time and materials basis unless the parties expressly
      agree otherwise in writing.  Any consulting services acquired from Oracle
      shall be bid separately from the Program licenses and Client may acquire
      the Program licenses without acquiring any consulting services.

3.3.  INCIDENTAL EXPENSES
      For any on site services requested by Client, Client shall reimburse
      Oracle for actual, reasonable travel and out-of-pocket expenses incurred,
      plus an administrative fee of 15% of such amount.

 IV.   TERM AND TERMINATION

4.1.  TERM
      Each Program license granted under this Agreement shall remain in effect
      perpetually (if not otherwise specified on the Order Form), unless a
      license or this Agreement is terminated as provided in Paragraph 4.2 or
      4.3 below.

4.2.  TERMINATION BY CLIENT
      Client may terminate any Program license at any time; however,
      termination shall not relieve Client's obligation to pay all fees that
      have accrued or that Client has agreed to pay under any Order Form or
      other similar ordering document under this Agreement.

4.3.  TERMINATION BY ORACLE
      Oracle may terminate this Agreement or any license upon written notice if
      Client breaches this Agreement and fails to correct the breach within 30
      days following written notice specifying the breach.

4.4.  EFFECT OF TERMINATION
      Termination of this Agreement or any license shall not limit either party
      from pursuing any other remedies available to it, including injunctive
      relief, nor shall such termination relieve Client's obligation to pay all
      fees that have accrued or that Client has agreed to pay under any Order
      Form or other similar ordering document under this Agreement.  The
      parties' rights and obligations under Paragraphs 2.1.B, 2.1.C, 2.1.D, and
      2.3.B, and Articles IV, V, VI and VII shall survive termination of this
      Agreement.

      If Client materially breaches this Agreement, including failing to make
      any payments required hereunder when due under any Order Form or other
      similar ordering document to this Agreement, then Oracle may declare all
      sums due and to become due hereunder immediately due and payable.

4.5.  RETURN OF PROGRAMS UPON TERMINATION
      If a license granted under this Agreement expires or otherwise
      terminates, Client shall (a) cease using the applicable Programs, and (b)
      certify to Oracle within one month after expiration or termination that
      Client has destroyed or has returned to Oracle the Programs and all
      copies.  This requirement applies to copies in all forms, partial and
      complete, in all types of media and computer memory, and whether or not
      modified or merged into other materials.  Before returning Programs to
      Oracle, Client shall acquire a Return Material Authorization ("RMA")
      number from Oracle at (415) 508-1500.

V.    INDEMNITY, WARRANTIES, REMEDIES, LIMITATION OF LIABILITY

5.1.  INFRINGEMENT INDEMNITY
      Oracle will defend and indemnify Client against a claim that Programs
      furnished and used within the scope of this Agreement infringe a United
      States copyright or patent, provided that: (a) Client notifies Oracle in
      writing within 30 days of the claim; (b) Oracle has sole control of the
      defense and all related settlement negotiations; and (c) Client provides
      Oracle with the assistance, information and authority necessary to
      perform Oracle's obligations under this paragraph.  Reasonable out-of-
      pocket expenses incurred by Client in providing such assistance will be
      reimbursed by Oracle.

      Oracle shall have no liability for any claim of infringement based on:
      (a) use of a superseded or altered release of Programs if the
      infringement would have been avoided by the use of a current unaltered
      release of the Programs that Oracle provides to Client; or (b) the
      combination, operation or use of any Programs furnished under this
      Agreement with software, hardware or other materials not furnished by
      Oracle if such

<PAGE>

      infringement would have been avoided by the use of the Programs without
      such software, hardware or other materials.

      In the event the Programs are held or are believed by Oracle to infringe,
      Oracle shall have the option, at its expense, to (a) modify the Programs
      to be noninfringing; (b) obtain for Client a license to continue using
      the Programs; or (c) terminate the license for the infringing Programs
      and refund the license fees paid for those Programs, prorated over a five
      year term from the Commencement Date.  This Paragraph 5.1 states Oracle's
      entire liability and Client's exclusive remedy for infringement.

5.2.  WARRANTIES AND DISCLAIMERS

      A.     Warranties

             i.     Program License Warranties
                    For each Supported Program License, Oracle warrants for a
                    period of one year from the Commencement Date that the
                    Programs, unless modified by Client, will perform the
                    functions described in the Documentation provided by Oracle
                    when operated on the Designated System.  Oracle will
                    undertake to correct any reported error condition in
                    accordance with its technical support policies.

                    Oracle does not warrant that the Programs will meet
                    Client's requirements, that the Programs will operate in
                    the combinations which Client may select for use, that the
                    operation of the Programs will be uninterrupted or error-
                    free, or that all Program errors will be corrected.

                    If Client does not obtain Technical Support services, the
                    Programs are distributed "as is."

             ii.    Media Warranty
                    Oracle warrants the tapes, diskettes or other media to be
                    free of defects in materials and workmanship under normal
                    use for 90 days from the Commencement Date.

             iii.   Services Warranty
                    Oracle warrants that its Technical Support and consulting
                    services will be performed consistent with generally
                    accepted industry standards.  This warranty shall be valid
                    for 90 days from performance of service.

      B.     Limitations on Warranties

             i.     THE WARRANTIES ABOVE ARE EXCLUSIVE AND IN LIEU OF ALL OTHER
                    WARRANTIES, WHETHER EXPRESS OR IMPLIED, INCLUDING THE
                    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
                    PARTICULAR PURPOSE.

             ii.    As an accommodation to Client, Oracle may supply Client
                    with Limited Production Programs or with pre-production
                    releases of Programs (which may be labeled "Alpha" or
                    "Beta").  These products are not suitable for production
                    use.  Oracle does not warrant Limited Production Programs,
                    pre-production releases or computer-based training
                    products; these products are distributed "as is."

5.3.  EXCLUSIVE REMEDIES

      For any breach of the warranties contained in Paragraph 5.2 above,
      Client's exclusive remedy, and Oracle's entire liability, shall be:

      A.     For Programs
             The correction of Program errors that cause breach of the
             warranty, or if Oracle is unable to make the Program operate as
             warranted.  Client shall be entitled to recover the fees paid to
             Oracle for the Program license of Update, as applicable.

      B.     For Media
             The replacement of defective media returned within 90 days of the
             Commencement Date.

      C.     For Services
             The reperformance of the services, or if Oracle is unable to
             perform the services as warranted, Client shall be entitled to
             recover the fees paid to Oracle for the deficient services.

5.4.  LIMITATION OF LIABILITY
      In no event shall either party be liable for any indirect, incidental,
      special or consequential damages, or damages for loss of profits,
      revenue, data or use, incurred by either party or any third party,
      whether in an action in contract or tort, even if the other party or any
      other person has been advised of the possibility of such damages.
      Oracle's liability for damages hereunder shall in no event exceed the
      amount of fees paid by Client under this Agreement, and if such damages
      result from Client's use of the Program or services, such liability shall
      be limited to fees paid for the relevant Program or services giving rise
      to the liability, prorated over a five-year term from the Commencement
      Date of the applicable license or the date of performance of the
      applicable services.

      The provisions of this Article V allocate the risks under this Agreement
      between Oracle and Client.  Oracle's pricing reflects this allocation of
      risk and the limitation of liability specified herein.

VI.   PAYMENT PROVISIONS

6.1.  INVOICING AND PAYMENT
      Invoices for payment of license fees shall be payable 30 days from the
      Commencement Date.  Technical Support fees shall be payable annually in
      advance, net 30 days from the renewal date; such fees will be those in
      effect at the beginning of the period for which the fees are paid.  All
      other applicable fees shall be payable 30 days from the invoice date, and
      shall be deemed overdue if they remain unpaid thereafter.  Any amounts
      payable by Client hereunder which remain unpaid after the due date shall
      be subject to late penalty fees equal to 1.5% per month from the due date
      until such amount is paid.  Client agrees to pay applicable media and
      shipping charges.  Client shall issue a purchase order, or alternative
      document acceptable to Oracle, on or before the Effective Date of the
      applicable order form.

6.2.  TAXES
      The fees listed in this Agreement do not include taxes; if Oracle is
      required to pay sales, use, property, value-added or other federal, state
      or local taxes based on the licenses or services granted in this
      Agreement or on Client's use of Programs or services, then such taxes
      shall be billed to and paid by Client.  This paragraph shall not apply to
      taxes based on Oracle's income.

VII.  GENERAL TERMS

7.1.  NONDISCLOSURE
      By virtue of this Agreement, the parties may have access to information
      that is confidential to one another ("Confidential Information").
      Confidential Information shall be limited to the Programs, the terms and
      pricing under this Agreement, and all information clearly identified as
      confidential.

      A party's Confidential Information shall not include information that:
      (a) is or becomes a part of the public domain through no

<PAGE>

      act or omission of the other party; (b) was in the other party's lawful
      possession prior to the disclosure and had not been obtained by the other
      party either directly or indirectly from the disclosing party; (c) is
      lawfully disclosed to the other party by a third party without
      restriction on disclosure; or (d) is independently developed by the other
      party.  Client shall not disclose the results of any benchmark tests of
      the Programs to any third party without Oracle's prior written approval.

      The parties agree to hold each other's Confidential Information in
      confidence during the term of this Agreement and for a period of two
      years after termination of this Agreement.  The parties agree, that
      unless required by law, not to make each other's Confidential Information
      available in any form to any third party or to use each other's
      Confidential Information for any purpose other than the implementation of
      this Agreement.  Each party agrees to take all reasonable steps to ensure
      that Confidential Information is not disclosed or distributed by its
      employees or agents in violation of the terms of this Agreement.

7.2.  GOVERNING LAW
      This Agreement, and all matters arising out of or relating to this
      Agreement, shall be governed by the laws of the State of California, and
      shall be deemed to be executed in Redwood City, California.

7.3.  JURISDICTION
      Any legal action or proceeding relating to this Agreement shall be
      instituted in any state or federal court in San Francisco or San Mateo
      County, California.  Oracle and Client agree to submit to the
      jurisdiction of, and agree that venue is proper in, the aforesaid courts
      in any such legal action or proceeding.

7.4.  NOTICE
      All notices, including notices of address change, required to be sent
      hereunder shall be in writing and shall be deemed to have been given when
      mailed by first class mail to the first address listed in the relevant
      Order Form (if to Client) or to the Oracle address on the Order Form (if
      to Oracle).

      To expedite order processing, Client agrees that Oracle may treat
      documents faxed by Client to Oracle as original documents; nevertheless,
      either party may require the other to exchange original signed documents.

7.5.  SEVERABILITY
      In the event any provision of this Agreement is held to be invalid or
      unenforceable, the remaining provisions of this Agreement will remain in
      full force.

7.6.  WAIVER
      The waiver by either party of any default or breach of this Agreement
      shall not constitute a waiver of any other or subsequent default or
      breach.  Except for actions for nonpayment or breach of Oracle's
      proprietary rights in the Programs, no action, regardless of form,
      arising out of this Agreement may be brought by either party more than
      one year after the cause of action has accrued.

7.7.  EXPORT ADMINISTRATION
      Client agrees to comply fully with all relevant export laws and
      regulations of the United States to assure that neither the Programs, nor
      any direct product thereof, are exported, directly or indirectly, in
      violation of United States law.

7.8.  RELATIONSHIP BETWEEN THE PARTIES
      Oracle is an independent contractor; nothing in this Agreement shall be
      construed to create a partnership, joint venture or agency relationship
      between the parties.  Each party will be solely responsible for payment
      of all compensation owed to its employees, as well as employment related
      taxes.  Each party will maintain appropriate workers' compensation for
      its employees.

7.9.  ENTIRE AGREEMENT
      This Agreement constitutes the complete agreement between the parties and
      supersedes all prior or contemporaneous agreements or representations,
      written or oral, concerning the subject matter of this Agreement.  This
      Agreement may not be modified or amended except in a writing signed by a
      duly authorized representative of each party; no other act, document,
      usage or custom shall be deemed to amend or modify this Agreement.

      It is expressly agreed that all terms of any Client purchase order or
      other ordering document shall be superseded by the terms of this
      Agreement.  This Agreement shall also supersede the terms of any unsigned
      license agreement included in any package for Oracle-furnished software,
      except terms contained in such unsigned license agreement that limit
      usage of the Programs.


The Effective Date of this Agreement shall be MAY 18TH, 1994

Executed by Client:

Authorized Signature: /s/Scott M. Langdoc
                     -------------------
Name:  SCOTT M. LANGDOC
      ----------------
Title: VICE PRESIDENT, CORP MIS
      ------------------------

Executed by Oracle Corporation:

Authorized Signature: /s/Robert Hughes
                     -------------------
Name:  ROBERT HUGHES
      -------------
Title: SENIOR DIRECTOR, USA REVENUE
      ----------------------------

<PAGE>


                            NETWORK USER LICENSE ADDENDUM
                                       BETWEEN
                                U.S. COMPUTER SERVICES
                                         AND
                                  ORACLE CORPORATION

This Network User License Addendum ("User Addendum") shall be governed by the
terms of the Software License and Services Agreement between U.S. Computer
Services ("Client") and Oracle Corporation ("Oracle") effective May 18, 1994
(the "Agreement") and the terms set forth below.

1.    PROGRAMS AND DEFINITIONS

      1.1    LICENSED PROGRAMS
             A.     PROGRAM SETS
             "Licensed Programs" means the Programs in the Program Set(s) that
             are currently available in production release as of the Effective
             Date for use on the corresponding Hardware and as specified in the
             License Type.

             Program Set: A                      Hardware
             PROGRAMS                  (COMPUTER/OPERATING SYSTEM)
             --------                  ---------------------------
             Oracle7                   IBM RS 6000 /AIX
             Procedural Option         Silicon Graphics/UNIX
             Distributed Option        PC Compatible/Netware
             SQL*Net                   PC Compatible/Windows
             SQL*Net TCP/IP            PC Compatible/Windows NT
                                       Apple Macintosh/OS
                                       SCO 386 UNIX/UNIX
                                       SUN/Solaris
                                       PC Compatible/OS2

             Program Set: B                      Hardware
             PROGRAMS                  (COMPUTER/OPERATING SYSTEM)
             --------                  ---------------------------
             Pro*C                     IBM RS 6000 /AIX
                                       Silicon Graphics/UNIX
                                       PC Compatible/Netware
                                       PC Compatible/Windows
                                       PC Compatible/Windows NT
                                       Apple Macintosh/OS
                                       SCO 386 UNIX/UNIX
                                       SUN/Solaris
                                       PC Compatible/OS2

             Program Set: C                      Hardware
             PROGRAMS                  (COMPUTER/OPERATING SYSTEM)
             --------                  ---------------------------
             SQL*Forms w/Menu          IBM RS 6000 /AIX
             SQL*ReportWriter          Silicon Graphics/UNIX
             SQL*Plus                  PC Compatible/Netware
                                       PC Compatible/Windows
                                       PC Compatible/Windows NT
                                       Apple Macintosh/OS
                                       SCO 386 UNIX/UNIX
                                       SUN/Solaris
                                       PC Compatible/OS2

<PAGE>

             Program Set: D                      Hardware
             PROGRAMS                  (COMPUTER/OPERATING SYSTEM)
             --------                  ---------------------------
             Oracle7                   IBM RS 6000 /AIX
             Procedural Option         Silicon Graphics/UNIX
             Distributed Option        PC Compatible/Netware
             Parallel Server Option    PC Compatible/Windows
             SQL*Net                   PC Compatible/Windows NT
             SQL*Net TCP/IP            Apple Macintosh/OS
             Pro*C                     SCO 386 UNIX/UNIX
                                       SUN/Solaris
                                       PC Compatible/OS2

             Program Set: E                      Hardware
             PROGRAMS                  (COMPUTER/OPERATING SYSTEM)
             --------                  ---------------------------
             SQL*Forms w/Menu          IBM RS 6000 /AIX
             SQL*ReportWriter          Silicon Graphics/UNIX
             SQL*Plus                  PC Compatible/Netware
                                       PC Compatible/Windows
                                       PC Compatible/Windows NT
                                       Apple Macintosh/OS
                                       SCO 386 UNIX/UNIX
                                       SUN/Solaris
                                       PC Compatible/OS2

             Program Set: F                      Hardware
             PROGRAMS                  (COMPUTER/OPERATING SYSTEM)
             --------                  ---------------------------
             Oracle Data Browser       IBM RS 6000 /AIX
                                       Silicon Graphics/UNIX
                                       PC Compatible/Netware
                                       PC Compatible/Windows
                                       PC Compatible/Windows NT
                                       Apple Macintosh/OS
                                       SCO 386 UNIX/UNIX
                                       SUN/Solaris
                                       PC Compatible/OS2

             Program Set: G                      Hardware
             PROGRAMS                  (COMPUTER/OPERATING SYSTEM)
             --------                  ---------------------------
             CASE/Tools Bundle**       IBM RS 6000 /AIX
                                       Silicon Graphics/UNIX
                                       PC Compatible/Netware
                                       PC Compatible/Windows
                                       PC Compatible/Windows NT
                                       Apple Macintosh/OS
                                       SCO 386 UNIX/UNIX
                                       SUN/Solaris
                                       PC Compatible/OS2

             Program Set: H                      Hardware
             PROGRAMS                  (COMPUTER/OPERATING SYSTEM)
             --------                  ---------------------------
             CASE/Tools Bundle**       IBM RS 6000 /AIX
                                       Silicon Graphics/UNIX
                                       PC Compatible/Netware
                                       PC Compatible/Windows
                                       PC Compatible/Windows NT
                                       Apple Macintosh/OS

<PAGE>

                                       SCO 386 UNIX/UNIX
                                       SUN/Solaris
                                       PC Compatible/OS2

             Program Set: I                      Hardware
             PROGRAMS                  (COMPUTER/OPERATING SYSTEM)
             --------                  ---------------------------
             SQL*Forms w/Menu          IBM RS 6000 /AIX
             SQL*ReportWriter          Silicon Graphics/UNIX
             SQL*Plus                  PC Compatible/Netware
                                       PC Compatible/Windows
                                       PC Compatible/Windows NT
                                       Apple Macintosh/OS
                                       SCO 386 UNIX/UNIX
                                       SUN/Solaris
                                       PC Compatible/OS2

             **CASE/Tools Bundle may include:  CASE Dictionary, CASE Designer, 
             CASE Generator for SQL*Forms w/Menu, CASE Generator for 
             SQL*ReportWriter, SQL*Forms w/Menu, SQL*ReportWriter, SQL*Plus, 
             SQL*Net and SQL*Net TCP/IP.

             B.     HARDWARE
             The "Hardware" shall be defined as up to a combined total of
             twenty-five (25) Computers of the Computer/Operating System
             combinations listed above that are owned, leased to, or under the
             sole control of Client.

             During the User Addendum Term, Client may add up to three (3)
             Computer/Operating System combinations ("Additional Hardware") to
             the Hardware specified above at no additional charge, provided:
             (i) the Licensed Programs are available in production release
             status on the Additional Hardware at the time Client elects to add
             the Additional Hardware; (ii) Client has continuously maintained
             Technical Support for the Licensed Programs; and (iii) the
             Additional Hardware is in an equal or lesser value Oracle price
             tier as the Hardware.

             Oracle shall ship to the Client Location a single master copy of
             the Licensed Programs for each Additional Hardware added.  These
             Licensed Programs may only be copied and installed in accordance
             with Section 4 of this User Addendum.

             Client acknowledges that the Licensed Programs for use on the
             Additional Hardware may not be currently available.  Client agrees
             that it has not relied on the availability of such Licensed
             Programs in executing this User Addendum and that the availability
             of such Licensed Programs will not affect Client's payment
             obligations under Section 2.  Oracle is under no obligation to
             make available any Programs or Program/Hardware combinations.

             C.     UPDATES
             During the User Addendum Term, for each current Program below
             which has been licensed to Client the no charge technical support
             update shall be made available to Client on the applicable
             Hardware and License Type when and if such Program is made
             available in production release; provided Client has continuously
             maintained Technical Support services from Oracle for the Licensed
             Programs from the Effective Date:

             CURRENT PROGRAMS          UPDATE
             ----------------          ------
             SQL*Forms w/Menu          Oracle Forms
             SQL*ReportWriter          Oracle Reports

<PAGE>

             Pro*C,                    Oracle Precompilers
             Oracle Data Browser       Oracle Browser

             Client acknowledges that the Programs above may not be available.
             Client agrees that it has not relied on the availability of such
             Programs in executing this User Addendum and that the availability
             of these Programs will not affect Client's payment obligations in
             this User Addendum.  Oracle is under no obligation to make
             available any Programs or Program/Hardware combinations.

      1.2    LICENSE TYPE
             "Full Use Programs" are defined as unaltered versions of the
             Licensed Programs with all functions intact.

             "Deployment Programs" are limited to use solely for the purpose of
             running applications, and may not be used to create or alter
             tables or reports except as necessary for operating the
             applications.

      1.3    USER
             A.     INITIAL USERS ON EFFECTIVE DATE
             "Named User" is defined as an individual employed by Client who is
             authorized by Client to use the Licensed Programs under the terms
             of this User Addendum, regardless of whether the individual is
             actively using the Licensed Programs at any given time.

             "Concurrent User(s)" is defined as each session connected to the
             database by individuals employed by Client on the specified
             Computer at the same point in time.  This includes all batch
             processes and on-line users.  If multiplexing software or hardware
             (e.g. a TP monitor) is used to reduce the number of sessions
             directly connected to the database, the number of Concurrent Users
             must be measured as the number of distinct inputs to the
             multiplexing front-end.

             The maximum number of Named Users and Concurrent Users of the
             Program Sets on the Hardware shall be as follows:

      PROGRAM SET                 NUMBER OF USERS          LICENSE TYPE
      -----------                 ---------------          ------------
      Program Set A               498 Named Users          Full Use
      Program Set B               213 Named Users          Full Use
      Program Set C               357 Named Users          Deployment
      Program Set D               32 Concurrent Users      Full Use
      Program Set E               1 Concurrent User        Deployment
      Program Set F               1 Concurrent User        Full Use
      Program Set G               1 Named User             Full Use
      Program Set H               1 Named User             Full Use
      Program Set I               30 Named Users           Full Use

             B.     ADDITIONAL USERS
             During the User Addendum Term, Client shall have the option to
             increase the number of Users of the Licensed Programs, in any
             combination of Users for the Program Sets below for use on the
             relevant Hardware provided, however, that the minimum amount of
             license fees per order is equal to or greater than [  *  ] per
             order.

                        LICENSE                            ADDITIONAL FEE PER
      PROGRAM SET       TYPE           USER INCREMENT      USER INCREMENT
      -----------       ----           --------------      --------------
      Program Set A     Full Use       1 Named User             [  *  ]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

<PAGE>

      Program Set B     Full Use       1 Named User             [  *  ]
      Program Set C     Deployment     1 Named User             [  *  ]
      Program Set D     Full Use       1 Concurrent User        [  *  ]
      Program Set E     Deployment     1 Concurrent User        [  *  ]
      Program Set F     Full Use       1 Concurrent User        [  *  ]
      Program Set G     Full Use       1 Named User             [  *  ]
      Program Set H     Full Use       1 Named User             [  *  ]
      Program Set I     Full Use       1 Named User             [  *  ]

             For each order, applicable sales tax will be added to the
             Additional Fee.  All applicable fees shall be due and payable on
             the date that Client notifies Oracle in writing of its exercise of
             this option.  Upon election, this payment obligation is
             noncancelable, and the sum paid is nonrefundable.  At the time of
             election Client may obtain Technical Support services from Oracle
             under Oracle's applicable Technical Support fees and policies in
             effect when such services are ordered.

      1.4    USER ADDENDUM TERM
             The "User Addendum Term" shall be from the Effective Date to May
             18, 1996.

      1.5    TERRITORY
             The "Territory" shall be defined as all Client facilities in the
             United States.

      1.6    CLIENT
             Client represents and warrants that International Billing Services
             is a division of Client.  With respect to the use the Licensed
             Programs in Program Sets D, E, F, and G under this User Addendum,
             the term "Client" means International Billing Services.  Prior to
             using the Licensed Programs in Program Sets D, E, F and G 
             International Billing Services must agree in writing with Client
             to be bound by the terms of this User Addendum and the Agreement.

2.    FEES AND PAYMENTS
      The license fee for this User Addendum shall be [  *  ].  This fee does
      not include fees for Technical Support services which are as specified in
      Section 6.1.  This fee shall be due and payable within thirty (30) days
      of the Effective Date specified below.  This payment obligation is
      noncancelable and the sum paid is nonrefundable.  The pricing specified
      herein is specific to this User Addendum, and the specified fees may not
      be reduced by any existing credits or any other discounts.  Except as
      otherwise specified herein, licenses for any additional Users, except as
      specified under Section 1.3 above, Programs, or Hardware shall be at
      terms and fees as determined when the additional licenses are acquired.
      Applicable sales tax shall be charged to Client based on the point of
      delivery of the master copy and paid under the terms of the Agreement.
      Client is responsible for payment of any use or other tax arising from
      use of the Licensed Programs in any other location.  Client agrees to pay
      applicable media and shipping charges.

      As specified in the Assignment attached hereto as Exhibit A,
      SQL*Integrators has assigned and transferred the Program licenses granted
      under the Customer Support Identification (CSI) numbers specified in such
      Exhibit to Client.  Further, SQL*Integrators has previously sublicensed
      to Client the Program licenses granted under the CSI numbers specified in
      Exhibit B under its Systems Integrator Agreement with Oracle, dated
      November 17, 1992.  As of the Effective Date of this User Addendum and in
      consideration for the rights granted under this User Addendum, Client
      agrees that the Program licenses granted under the specified CSI numbers
      acquired under the Assignment Form are hereby terminated, and agrees to
      terminate the Sublicense of the Programs granted under the

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

<PAGE>

      specified CSI numbers identified on Exhibit B which were sublicensed to
      Client by SQL*Integrators.

3.    LICENSE GRANT
      In consideration for the payment specified in Section 2 above, Oracle
      grants to Client a non-exclusive, non-transferable license to use the
      Licensed Programs on the applicable Hardware in the Territory under the
      terms of the Agreement, for up to the maximum number of Users specified
      above.

4.    DELIVERY AND INSTALLATION
      Oracle shall deliver to Client one (1) copy of the software media and
      five (5) sets of documentation ("master copy") for each Licensed Program
      in the applicable Program Sets to the addresses set forth below (the
      "Client Locations").

      PROGRAMS SET                          CLIENT LOCATIONS
      ------------                          ----------------
      Program Sets A, B, C, H and I         U.S. Computer Services
                                            11020 Sun Center Drive, Rancho
                                            Cordova, CA
                                            95670
      Program Sets D, E, F and G            International Billing Services
                                            5220 Robert J. Matthews Parkway, El
                                            Dorado Hills, CA  95762

      Client shall be responsible for copying the software media and installing
      the Licensed Programs.  Unless otherwise specified herein, Client shall
      acquire no right to copy documentation.  The Acceptance Period for each
      of the Licensed Programs shall commence on delivery of the master copy of
      the Licensed Programs, and all subsequent copies shall be deemed accepted
      upon acceptance of the master copy.  The number, location, and
      identification of Computers in the Territory, the licensed number of
      Users on each Computer, and the configuration of the Licensed Programs on
      each Computer shall be fixed as of the expiration of the User Addendum
      Term.  Upon fixing of the Licensed Programs on the Computers, the Program
      licenses shall be perpetual subject to the terms of the Agreement.
      Thereafter, unless this User Addendum is extended or modified, Program
      licenses for use on additional Computers or licenses for additional Users
      shall be acquired separately.

5.    REPORTING
      Beginning one hundred eighty (180) days after the Effective Date, Client
      shall notify Oracle semi-annually in writing of: (i) the location,
      models, and serial numbers of all Computers on which the Licensed
      Programs are installed; (ii) the configuration of the Licensed Programs
      on each Computer; and (iii) the number of Users on each Computer.  When
      reporting, ordering or communicating with Oracle under this User
      Addendum, Client shall reference: (a) this User Addendum (include
      Effective Date); and (b) the Effective Date of the Agreement.

6.    TECHNICAL SUPPORT
      6.1    Until May 18, 1997, Client shall receive annual Standard Technical
             Support services for all Programs licensed in the U.S. under this
             User Addendum, except as otherwise provided herein, for a total
             fee of four hundred seventy-eight thousand two hundred twenty-nine
             dollars ($478,229) payable in advance in annual installments as
             specified below.  Thereafter, Client may obtain annual Technical
             Support services from Oracle under Oracle's Technical Support fees
             and policies in effect when such services are ordered.  A
             description of Oracle's Technical Support services is listed in
             Exhibit C.

<PAGE>

                        SUPPORT YEAR        TECHNICAL SUPPORT FEE
                        ------------        ---------------------
                        First Year               [  *  ]
                        Second Year              [  *  ]
                        Third Year               [  *  ]

      6.2    Client shall designate and provide to Oracle the name of one (1)
             Client employee per Client Location who shall serve as on-site
             technical contacts ("Technical Contacts") to act as the sole
             liaisons between Client and Oracle for the Technical Support
             services provided under this User Addendum.  Client shall also
             provide the names of two (2) employees who shall serve as backups
             to the Technical Contacts.  Client shall notify Oracle whenever
             the designated Technical Contacts responsibilities are transferred
             to another employee.  For any Technical Support updates to the
             applicable Licensed Programs provided during the User Addendum
             Term, Oracle shall ship to the Client Locations specified above
             one (1) Technical Support update copy for each Hardware type.
             Client shall be responsible for copying and installing the updates
             on the Computers for which the Licensed Programs are licensed.

7.    VERIFICATION
      Oracle may, at its expense, audit Client's use of the Licensed Programs.
      Any such audit shall be conducted during regular business hours at
      Client's facilities and shall not interfere unreasonably with Client's
      business activities.  If an audit reveals that Client has underpaid fees
      to Oracle, Client shall be invoiced for such underpaid fees based on the
      Price List in effect when the audit is completed; if the underpaid fees
      exceed five percent (5%) of the license fees paid, then Client shall also
      pay Oracle's reasonable costs of conducting the audit.  Audits shall be
      conducted no more than once annually.

8.    EDUCATION
      In consideration of the payment of the fees set forth in Section 2,
      Client shall receive ten (10) Oracle standard Training Units which are
      valid for one (1) year from the Effective Date of this User Addendum.
      Each Training Unit may be used to acquire one (1) day of instruction for
      one (1) Client employee at an Oracle Education Center in the U.S.,
      exclusive of expenses.

9.    CONSULTING
      In consideration for the payment of the fees set forth in Section 2,
      Client shall receive two (2) days of consulting services to be performed
      during the User Addendum Term by a staff level member of Oracle's
      Consulting organization.  Client shall reimburse Oracle for any
      reasonable travel and out-of-pocket expenses.

      Client understands that it has the right to acquire and use the Program
      licenses acquired hereunder or under the User Addendum without acquiring
      any consulting services, and that Client has the right to acquire the
      Program licenses and the consulting services separately at the fees
      stated in the User Addendum.

10.   CONFIDENTIALITY
      Client and Oracle agree that the pricing and terms of this User Addendum
      shall not be disclosed without the prior written consent of the other
      party.

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

<PAGE>

11.   ASSIGNMENT
      The rights granted under this User Addendum may not be assigned or
      transferred to any third party without the express written consent of
      Oracle Corporation.

The Effective Date of this User Addendum is May 18, 1994.

U. S. COMPUTER SERVICES                ORACLE CORPORATION

By: /s/Arthur O. Hawkins               By: /s/Robert Hughes
    --------------------                   --------------------
Name: Arthur O. Hawkins                Name: Robert Hughes
      ------------------                     ------------------
Title: V.P. & C.F.O.                   Title: SENIOR DIRECTOR, USA REVENUE
      -----------------                       ----------------------------

<PAGE>

                                      EXHIBIT A

                                      ASSIGNMENT
      SQL*Integrators ("Assignor") hereby assigns to U.S. Computer Services
("Assignee") all its right, title and interest to the Program licenses granted
under Customer Support Identification (CSI) numbers 616666, 616668, 521358,
590121, 589669, 589672, 589670, 521739 which were licensed under the Preferred
Systems Integrator Agreement dated November 11, 1992, and any amendments and
addenda thereto (the "Agreement") between Assignor and Oracle Corporation
("Oracle").

Date: 5/19/94                          SQL*INTEGRATORS
      -------

                                       By: /s/John Zalud
                                           ------------------------------------
                                       Name: John Zalud
                                             ----------------------------------
                                       Title: President
                                              ---------------------------------

                               ACCEPTANCE OF ASSIGNMENT
      Assignee hereby accepts the foregoing assignment and agrees to perform
all duties and obligations to be performed by Assignor with respect to the
applicable Programs under the above-mentioned Agreement to the same extent as if
it had been an original party thereto.

Date: 5/18/94                          U.S. COMPUTER SERVICES
      -------

                                       By: /s/Arthur C. Hawkins
                                           ------------------------------------
                                       Name: Arthur  C. Hawkins
                                             ----------------------------------
                                       Title: V.P. & C.F.O.
                                              ---------------------------------

                            CERTIFICATION OF NONPOSSESSION
      Assignor hereby certifies that upon execution of the above-mentioned
assignment, it will discontinue use of all of the Program licenses granted under
the above CSI numbers, and that all copies of such programs will be erased from
Assignor's computer, whether partial or complete and whether or not merged with
other programs.  All documentation and other materials received from Oracle will
be immediately transferred to Assignee.

Date: 5/19/94                          SQL*INTEGRATORS
      -------

                                       By: /s/John Zalud
                                           ------------------------------------
                                       Name: John Zalud
                                             ----------------------------------
                                       Title: President
                                              ---------------------------------

                                CONSENT TO ASSIGNMENT
      Subject to the terms and conditions of the above-mentioned Assignment,
Acceptance of Assignment and Certification of Nonpossession, Oracle hereby
consents to the foregoing assignment.

Date: 5/25/94                          ORACLE CORPORATION
      -------

                                       By: /s/Robert Hughes
                                           ------------------------------------
                                       Name: Robert Hughes
                                             ----------------------------------
                                       Title: Senior Director, USA REVENUE
                                              ---------------------------------

<PAGE>

                                      EXHIBIT B

                                 SUBLICENSE PROGRAMS

PROGRAMS SUBLICENSED TO CLIENT BY SQL*INTEGRATORS AND GRANTED UNDER THE
FOLLOWING CUSTOMER SUPPORT IDENTIFICATION (CSI) NUMBERS:

CSIs:  522634, 521539, 513070

<PAGE>

                                      Exhibit C


ORACLE TECHNICAL SUPPORT SERVICES

TECHNICAL SUPPORT FEES

Technical Support fees are calculated based on a percentage of the non-
discounted, then-current license fees for the supported products and such fees
are due and payable in advance of the term of Support.

REINSTATEMENT FEES

In the event Technical Support services lapse or were never originally procured,
a reinstatement fee shall be assessed upon startup of Technical Support.

MINI/MAINFRAME SUPPORT AND FEES

New Oracle Customer Care Packages:

ORACLE BRONZE SUPPORT

Oracle Bronze Support includes:

- -     Real Time Telephone Technical Assistance
      -      5:00 a.m. to 6:00 p.m. (Pacific Time), Monday through Friday
      -      Problem solving, bug reporting, documentation clarification,
             technical guidance
- -     Program updates
      -      Patches and fixes
      -      General maintenance releases
      -      Documentation updates
- -     Real Time Support System (RTSS) dial-in access
- -     Quarterly newsletter
- -     Mail server access
      -      Read/Write access to RTSS via Electronic Mail over the Internet
      -      Technical Assistance Requests can be opened, closed or updated
      -      General Communication with Oracle Worldwide Support
- -     Oracle Electronic Support--Read/Write access to Oracle's private Support
      Forum on CompuServe**
** CLIENTS WILL NEED TO REGISTER WITH COMPUSERVE TO OBTAIN COMPUSERVE ACCESS.
THIS SERVICE WILL BE OFFERED IN THE UNITED STATES ONLY.

ORACLE SILVER SUPPORT

Oracle Silver Support includes Oracle Bronze Support plus the following:

- -     Real Time Telephone Technical Assistance
      -      Toll-free 800 number
      -      24 hours a day/7 days a week
- -     SupportNotes-TM- - Oracle Book based technical information repository
- -     Management reports - Faxed upon request
- -     Proactive Alerts
      -      Contain known problem and problem resolution information
      -      Proactively faxed as applicable


ORACLE GOLD SUPPORT

Oracle Gold Support (for which a minimum fee applies) includes Oracle Silver
Support plus the following:

- -     Priority Processing - Priority Processing over Silver, Bronze, Standard
      and Extended support tiers
- -     Personal Support Team
      -      Designated Support Team located within Oracle Worldwide Support
      -      Monitor Client call/TAR activity

<PAGE>

The following Basic, Standard, and Extended Support packages are expected to be
phased out in calendar year 1995:

BASIC ANNUAL SUPPORT

Basic Annual Support includes:

- -     Telephone Technical Assistance
      -      5:00 a.m. to 6:00 p.m. (Pacific Time), Monday through Friday
      -      Problem solving, bug reporting, documentation clarification,
             technical guidance
- -     Program updates and associated documentation
- -     Real Time Support System (RTSS) dial-in access
      -      Log/Update/Review TARs
      -      Review Bugs
      -      Access the Support Bulletin Board
- -     Quarterly newsletter

STANDARD SUPPORT

Standard Support includes Basic Support plus the following:

- -     Telephone Technical Assistance - 24 hours a day/7 days a week

EXTENDED SUPPORT

Extended Support includes Standard Support plus the following:

- -     Toll-free 800 number

DESKTOP SUPPORT AND FEES

Each Desktop Program License entitles Clients to thirty (30) days of telephone
installation support.  Clients may also purchase Technical Support services for
Desktop Program Licenses.

DESKTOP BASIC ANNUAL SUPPORT

Desktop Basic Annual Support includes:

- -     Telephone Technical Assistance
      -      5:00 a.m. to 6:00 p.m. (Pacific Time), Monday through Friday
      -      Problem solving, bug reporting, documentation clarification,
             technical guidance
- -     Program updates and associated documentation
- -     Real Time Support System (RTSS) dial-in access
      -      Log/Update/Review TARs
      -      Review Bugs
      -      Access the Support Bulletin Board
- -     Quarterly newsletter

DESKTOP UPDATES

Desktop Updates include only:

- -     Program updates and associated documentation

INFORMATION CLIENTS NEED WHEN CALLING SUPPORT

Before Support can begin work on any problem, information about the nature and
location of the problem is required.  Whenever a call is placed to the hotline,
the following information should be provided:

- -     The Customer Support Identification (CSI) number or PC registration
      number
- -     The area code and phone number listed under the CSI number
- -     Operating system and version on which Oracle Programs are installed
- -     The Oracle product component and its version number that this call
      concerns.  Support questions involve product components -- that is,
      constituent parts of an Oracle product.  For example, with the ORACLE
      kernel, Client receives components such as RDBMS, IMP, EXP and
      SQL*Loader.  SQL*Forms

                                  Subject to Change

<PAGE>

      components include IAD (design) and IAP (Runtime).
- -     The relevant Program version(s)
- -     Any Program error number that appeared
- -     Brief description of the problem
- -     Severity of the problem.  Oracle Worldwide Support classifies problems
      according to how they impact the Client's business.  See list below for
      explanation of Technical Assistance Request (TAR) Severity Levels.

TECHNICAL ASSISTANCE REQUEST (TAR) SEVERITY LEVELS

The chart below lists standard Technical Assistance Request Severity Levels.
Oracle Worldwide Customer Support responds to TARs based on Severity Level.

SEVERITY LEVEL

SEVERITY 1
CRITICAL BUSINESS IMPACT
Customer's work, regardless of the environment or product usage, is stopped or
so severely impacted that the customer cannot reasonably continue to work.

SEVERITY 2
SEVERE BUSINESS IMPACT
Customer's work is continuing (not stopped) however there is a serious impact on
the customer's productivity and/or service levels.

SEVERITY 3
MINOR BUSINESS IMPACT
Customer is in full working mode - there is no work being impeded at the time -
information or solutions are requested by the customer as soon as possible in
order to maintain this condition.

SEVERITY 4
NO BUSINESS IMPACT
Customer is in full working mode - there is no work being impeded at the time -
information is requested but has no impact on the operation of the products.

TARS are logged and tracked in Support's Real Time Support System (RTSS).
Response will be given to the Client by telephone and logged directly into the
RTSS problem-tracking system.  The Client may dial-in to RTSS to track the
progress of their TAR at any time.

Support's response may include a written response, patch tape, supplementary
documentation, a temporary means of circumventing the problem pending a new
release, or other correctional aids.

CUSTOMER SUPPORT IDENTIFICATION (CSI) NUMBER

Clients shall receive a CSI Number upon purchasing Oracle Technical Support
services.

The CSI number identifies the Client with respect to the following information:

- -     Company Name and Address
- -     Product Set and Version
- -     Support Level and Duration
- -     Operating System
- -     Technical Contact Information

Worldwide Customer Support uses the CSI number to identify the Client's Support
contract when a Client calls the Support Hotline or dials-in to RTSS.

Desktop Program Clients are assigned a PC Registration Number with the original
shipment of the Program.  The PC Registration entitles the Client to thirty (30)
days of free installation support.  CSI Numbers appear as follows:

- -     On the packing slip located outside the shipping container
- -     On the packing slip located inside the shipping container
- -     On the order information/CSI postcard distributed by USA Client Relations
- -     In the Welcome Package distributed by Worldwide Customer Support

                                  Subject to Change

<PAGE>

- -     On the invoice
- -     On the Worldwide Customer Support Welcome Letter

TECHNICAL SUPPORT LIAISON ("TECHNICAL CONTACT")

Clients shall designate one (1) primary and two (2) backup Client employees
("Technical Contacts") to serve as liaisons with Oracle Worldwide Customer
Support.  The designated "Technical Contact" is the sole liaison between
technical support and Clients for all product support and shall be based on the
Client site.  Client may elect to add Technical Contacts for an additional fee.

To receive uninterrupted Technical Support service, Clients must notify Client
Relations at (415) 506-1500, option 9, whenever Technical Contact
responsibilities are transferred to another individual.

UPDATES

Updates shall mean subsequent releases of the programs which are generally made
available for Program Licenses covered under Oracle technical support at no
additional charge, other than media and handling charges.  Updates do not
include any options or future products which Oracle licenses separately.

TERMS OF SUPPORT

Oracle Worldwide Customer Support's technical assistance is limited to licenses
which are fully supported and to problems which are demonstrable in the current
release of the licensed program, running unaltered on the proper hardware
configuration.  Current release information is posted on-line in RTSS.

Technical Support for older versions of Oracle products or for non-Oracle
products is subject to additional fees.

TERMINATION

Client may terminate technical support at any time by notifying Oracle in
writing at least thirty (30) days before the desired date of termination.
Technical Support shall be terminated upon receipt of such notice.  On
termination, Oracle shall refund the unused portion of technical support fees
paid by the Client for the licenses for the allocable period for which technical
support is terminated.

PHONE NUMBERS AND ADDRESS INFORMATION

CUSTOMER SUPPORT HOTLINE

(FOR TECHNICAL SUPPORT, NON-TECHNICAL SUPPORT, AND SUPPORT SALES INFORMATION)

415-506-1500

TECHNICAL SUPPORT DIAL-IN NUMBER

RTSS Dial-in 415-598-9350

TECHNICAL SUPPORT ADDRESS

Oracle Worldwide Technical Support
500 Oracle Parkway
Box 659313
Redwood Shores, CA  94065

                                  Subject to Change


<PAGE>


                                                                   EXHIBIT 10.31


<PAGE>


                       STATEMENT PRODUCTION SERVICES AGREEMENT

                                       between

                               U. S. COMPUTER SERVICES

                               2969 PROSPECT PARK DRIVE

                           RANCHO CORDOVA, CALIFORNIA 95670

                                         and

                       CINCINNATI BELL INFORMATION SYSTEMS INC.

                                   600 VINE STREET

                                CINCINNATI, OHIO 45202


U. S. Computer Services (hereinafter called "USCS"), a California corporation,
agrees to provide Cincinnati Bell Information Systems Inc.  (hereinafter called
"CBIS") and CBIS agrees to purchase Statement Production Services described in
Attachments A and B (hereinafter collectively called "Services") subject to the
following terms and conditions:

1.  TERM OF AGREEMENT

    1.1  The term of this Agreement shall be [*].  This agreement shall be
         automatically renewed for [*] periods thereafter unless either party
         hereto provides to the other written notice of intent not to renew at
         least ninety (90) days prior to the expiration date of the original
         term or succeeding terms, if any.

    1.2  Testing of the systems necessary to provide Statement Production
         Services as set forth in Paragraph 5 of this Agreement will occur as
         mutually agreed.  This will include exercising all aspects of the
         services package provided for in this Agreement, and may include live
         statement runs.  For those instances in which live statement runs
         (resulting in statements being mailed by USCS for CBIS) occur prior to
         the commencement date of this Agreement, the parties shall be bound by
         the terms and conditions of this Agreement as to such statements.

    1.3  During the time of the initial conversion of systems on CBIS (at the
         time of the signing of this contract) to the USCS bill production
         system neither the custom programming charges nor the timetable in
         paragraph 1.4

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                        - 1 -
<PAGE>

         shall be applicable.  USCS and CBIS will mutually agree upon the
         initial conversion schedule.  CBIS will provide USCS with camera-ready
         art and specifications for forms and envelopes along with print files
         that match the forms and envelopes.

    1.4  USCS and CBIS will mutually agree on statement format, envelope
         format, print file format, tape format, Transmit 56 protocol (if
         applicable), and statement cutoff dates.  Once the above information
         is agreed upon, CBIS will provide written notification for any changes
         or new CBIS customer according to the following schedule:

         Forms Printing                     [*]
         Envelope Printing                  [*]
         Insert ("Stuffer") Printing        [*]
         Electronic Forms                   [*]
         Print File Format                  [*]
         Tape Format                        [*]
         Transmit 56 Protocol               [*]
         Statement Cutoff Dates             [*]
         Inserting Plan Setup               [*]

         Certain changes may involve custom programming charges which will be
         quoted in advance.  Changes involving a change in paper and/or
         envelope stock which result in unused inventory of such stock are
         subject to an unused stock fee as described in Paragraph 7.5.

2.  NATURE OF RELATIONSHIP

    2.1  CBIS is currently a vendor to the U.S. cellular industry offering
         products and services that include MIS packages and bill production. 
         Under this Agreement, USCS would become a vendor to CBIS for [*]. 

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                        - 2 -
<PAGE>

         [*]

    2.4  USCS does intend to have a marketing presence in the cellular
         industry.  This would include but not be limited to participation in
         industry trade shows, advertising in industry trade publications,
         sales calls, and other direct marketing efforts.  [*]

         [*]

    2.7  USCS and CBIS agree that the further intent in this developing
         relationship is to pursue other opportunities in the areas of domestic
         and international cellular, international bill production, domestic
         BOC bill production, and other areas as might be deemed mutually
         appropriate.

3.  DELIVERY OF MATERIAL AND DATA FOR PROCESSING

    3.1  Delivery of the print file to the USCS statement production facility
         will be by high speed data line (Transmit 56). [*] USCS and CBIS shall
         each share operational responsibility for this data transmission.

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                        - 3 -
<PAGE>

    3.2  CBIS may, at its option, ship or transmit system data before a final
         accuracy check has been made.  In such case, USCS will hold the cutoff
         in abeyance until a written release by facsimile has been issued by
         CBIS.  Should new system data be necessary, CBIS will be responsible
         for all costs associated with delivering or transmitting the new print
         file to USCS.  Should a release be issued that is later rescinded,
         CBIS shall reimburse USCS for work performed at USCS standard rates
         including, but not limited to, data transmission, printing, inserting,
         postal presorting, and postage.  This reimbursement shall be limited
         to work performed after the release and before the rescission.  Should
         CBIS' statements already have been released to the U.S. Postal system
         after the rescission is issued, USCS shall incur no liability for
         incorrect statements.

4.  CBIS DATA

    4.1  CBIS will provide USCS a print file of data to be processed by USCS
         and used to provide Statement Production Services.  This print file
         will be in the format mutually agreed to by USCS and CBIS.  

    4.2  USCS requires [*] for purposes of internal control and postal
         presort.  This requirement may increase as postal regulations change.

5.  STATEMENT PRODUCTION SERVICES

    5.1  Attachment A describes the components of USCS Statement Production
         Services.

6.  NORMAL TIME FOR PROCESSING

         [*]

    6.2  Should CBIS, after the transmission and release of data, request USCS
         to place a hold on statement production, the turnaround time shall be
         extended by the time of the hold.  Likewise, should a hold on
         statement production be necessary due to submission by CBIS of changes
         to print file format, tape format, forms, envelopes,

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                         - 4 -

<PAGE>

         inserts, Transmit 56 protocol or statement cutoff dates later than the
         limits outlined in Paragraph 1.3, the turnaround time shall be
         extended by the time of the hold.

         [*]  

7.  PRICE

         [*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                         - 5 -

<PAGE>

         [*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                        - 6 -

<PAGE>

8.  PAYMENT FOR SERVICES

    8.1  USCS shall invoice CBIS monthly for Services.  Standard payment terms
         are [*].  In the event that CBIS does not render full payment within
         sixty (60) days of the date payable, USCS may, after notifying CBIS,
         cease any and all Services until such account is brought current.

    8.2  CBIS agrees to prepay the postage expense for mailing statements. 
         CBIS agrees to set up a postage deposit account with USCS. [*]

         In the event CBIS does not prepay postage, as set forth above, USCS
         reserves the right to hold statements until sufficient funds are
         received.

    8.3  In the event of an increase in postage rates, the postage expense for
         mailing statements by USCS shall be increased by the amount of USCS'
         actual cost of such increase.

         [*]

    8.5  CBIS will pay directly, or reimburse USCS for, all taxes and charges
         imposed on any interest in or use of any Services, supply, or upon
         this Agreement, excluding, however, all taxes on or measured by USCS'
         income.

    8.6  If CBIS fails to pay any charges when due and payable, CBIS agrees
         that CBIS will pay a late payment service charge of [*] per month, but
         not in excess of the lawful maximum, on the past due balance.

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                        - 7 -
<PAGE>

9.  STANDARDS OF WORK

    9.1  USCS warrants that the performance of work and Services provided to
         CBIS under this Agreement shall be in conformance with the
         requirements of this Agreement and with industry standards.

10. PROPRIETARY INFORMATION AND DISCLOSURE

    10.1 USCS agrees that all information disclosed by CBIS during performance
         of this Agreement shall be considered proprietary, be held in
         confidence and used only in performance of this Agreement.  No
         information provided by CBIS under this Agreement shall be duplicated
         or furnished to another party without prior written consent of CBIS. 
         USCS will exercise the same standard or care to protect CBIS'
         proprietary data as is used to protect its own proprietary data
         from unauthorized disclosure.

    10.2 In a like manner, CBIS understands the proprietary nature of the
         system designed and developed solely by USCS, and CBIS will exercise
         similar care to prevent unauthorized disclosure of any information
         that could be injurious to the business operations and welfare of
         USCS.

    10.3 The obligations in this Section 10 shall survive the termination of
         this Agreement for a five (5) year period.

11. LIMITATION OF REMEDY

    11.1 USCS' liability for loss of any CBIS data or materials shall be
         limited to the replacement or regeneration of the lost items by the
         method or means deemed most reasonable by USCS.

    11.2 Neither USCS nor CBIS shall be considered in default due to any 
         failure in performance of this Agreement, in accordance with its 
         terms, should such failure arise out of causes beyond its control 
         and without its fault or negligence.

    11.3 In the event of an error or omission, whether human or mechanical, on
         the part of USCS or its employees, USCS may elect to reprocess the
         work at no extra cost to CBIS to correct said error or omission.  USCS
         shall indemnify and hold CBIS harmless from and against any claims
         initiated against CBIS by third parties arising from the procedural
         errors or omissions by USCS.  USCS' liability to CBIS for any losses
         or damages, direct or indirect, arising out of this Agreement shall
         not exceed the total

                                        - 8 -

<PAGE>

        amount billed or billable to CBIS for the performance which gave rise 
        to the loss or damage.  USCS shall not be liable for any special or 
        consequential damages in any event.

12. INSPECTIONS

    12.1 It is understood that CBIS may inspect all work being performed under
         this Agreement to the extent practical at all reasonable times and
         places.  However, it is also understood that such inspections by CBIS
         shall not be performed in any way that shall unduly delay the work
         being performed.  Reasonable facilities and assistance shall be
         provided for CBIS' inspection if any inspection is made by CBIS on the
         premises of USCS.  Such facilities and assistance shall be provided
         without extra charge.  However, should CBIS perform inspection at a
         place other than the premises of USCS, it shall be at the expense of
         CBIS.

13. MISCELLANEOUS

    13.1 ATTORNEYS' FEES.  The parties agree that in the event it is necessary
         to employ attorneys to enforce the terms of this Agreement, the
         prevailing party in any lawsuit shall be entitled to an award of
         reasonable attorneys' fees and court costs.

    13.2 ASSIGNMENT.  This Agreement may not be assigned by either party
         without prior written consent of the other party.  This agreement
         shall inure to the benefit of, and shall be binding upon, the parties
         hereto and their respective successors and permitted assigns.

    13.3 AMENDMENT.  This Agreement may be amended only by an instrument in
         writing, executed by CBIS and USCS.

    13.4 GOVERNING LAW.  This Agreement will be governed in all respects by the
         laws of the State of California.

    13.5 ENTIRE AGREEMENT.  This Agreement and Attachments represent the entire
         agreement between the parties and supersede and replace all prior oral
         and written proposals, communications, and agreements with regard to
         the subject matter hereof between CBIS and USCS.

    13.6 PLANT RULES AND SECURITY REQUIREMENTS.  The employees and agents of
         each party shall, while on the premises of the other, comply with all
         plant rules and regulations in effect at such premises, including
         security requirements.

    13.7 PUBLICITY.  The parties shall not, without prior written

                                       - 9 -

<PAGE>

         permission from the other party, issue or release for publication any
         articles or advertising or publicity matter relating to the work
         performed hereunder or the existence of this Agreement.

    13.8 INFRINGEMENT.  The following terms apply to any infringement, or
         claims of infringement, of any patent, trademark, copyright, trade
         secret or other proprietary interest based on the manufacture, normal
         use or sale of any material, equipment, programs or services furnished
         by USCS to CBIS hereunder or in contemplation hereof.  USCS shall
         indemnify CBIS and its subsidiaries, jointly and severally, for any
         loss, damage, expense or liability that may result by reason of any
         such infringement.  USCS shall defend or settle, at USCS' own expense,
         any action or suit for which USCS is responsible hereunder.  CBIS
         shall notify USCS promptly of any claim of infringement for which USCS
         is responsible, and shall cooperate with USCS in every reasonable way
         to facilitate the defense of any such claim.

    13.9 LIABILITY.  Neither USCS nor its subcontractors nor the employees or
         agents of any of them, shall be deemed to be employees or agents of
         CBIS, it being understood that USCS is an independent contractor for
         all purposes and at all times; and USCS shall be solely responsible
         for the withholding or payment of all federal, state and local 
         personal income taxes, social security, unemployment and sickness 
         disability insurance and other payroll taxes with respect to its 
         employees, including contributions from them when and as required 
         by law.

    [*]

    13.11 SECTION HEADINGS.  The headings of the several Sections are inserted 
         for convenience of reference only and are not intended to be part of,
         or to affect the meaning or interpretation of, this Agreement.

    13.12 WAIVER.  No provision of this Agreement shall be deemed waived, 
         amended, or modified by either party, unless such waiver, amendment or
         modification be in writing and signed by the party against whom it is
         sought to enforce the waiver, amendment or modification.

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                       - 10 -

<PAGE>

    13.13 SEVERABILITY.  If any provision, or portion thereof of this     
         Agreement, is deemed to be invalid under any applicable statute or
         rule of law, it is only to that extent to be deemed omitted.

14. TERMINATION

    14.1 BREACH.  Either party shall have the right to terminate the Agreement
         if the other fails to substantially comply with any of its material
         obligations under the Agreement.  Should either party elect to
         exercise this right to terminate for breach, it must be done in
         writing specifically setting forth the claimed breach.  The other
         party shall then have thirty (30) days from receipt of notification to
         remedy the breach.  If such party corrects the breach within this
         period, then the Agreement shall not be terminated pursuant to this
         provision.  Should such party fail to correct the breach within the
         period, then the party claiming breach shall have the right to
         terminate the Agreement forthwith.  In the event that this Agreement
         is terminated due to a breach by USCS, the provisions of paragraph 2.5
         shall survive such termination for a period of three (3) years.

IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of the 
9th day of October, 1990.

CINCINNATI BELL INFORMATION
    SYSTEMS, INC.                      U.S. COMPUTER SERVICES

By: /s/ Rudolph J. Frank               By:  /s/ Raymond W. Matteson
    ---------------------                   ------------------------
    Rudolph J. Frank                        Raymond W. Matteson
    President                               Vice President
    Communications Systems Group            Business Development

Date:    October 9, 1990               Date:     October 9, 1990
    ----------------------                  -------------------------


                                       - 11 -

<PAGE>

                                    ATTACHMENT A
                                          
                       SPECIFICATIONS FOR FORMS AND ENVELOPES
                                          
[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                       - 12 -

<PAGE>

                                    ATTACHMENT A
                                          
                              DESCRIPTION OF SERVICES
                                          

                   [*]


    
*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                       - 13 -

<PAGE>

                                   ATTACHMENT A 
                                          
                           DESCRIPTION OF SERVICES CON'T
                                          
                                        [*]
                                          
*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                       - 14 -

<PAGE>

USCS/International Billing Services     RATE SHEET CBIS     
ATTACHMENT B

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                                   Page 1

<PAGE>

USCS/International Billing Services     RATE SHEET CBIS     
ATTACHMENT B

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                                   Page 2

<PAGE>

USCS/International Billing Services     RATE SHEET CBIS     
ATTACHMENT B

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                                   Page 3

<PAGE>

USCS/International Billing Services     RATE SHEET CBIS     
ATTACHMENT B

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                                   Page 4

<PAGE>

ATTACHMENT C

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                            -14-

<PAGE>

INTERNATIONAL BILLING SERVICES  CBIS PRESENTATION OF RATES

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                         Page 1


<PAGE>

INTERNATIONAL BILLING SERVICES  CBIS PRESENTATION OF RATES

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                         Page 2


<PAGE>

INTERNATIONAL BILLING SERVICES  CBIS PRESENTATION OF RATES

[*]  

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                         Page 3


<PAGE>

INTERNATIONAL BILLING SERVICES  CBIS PRESENTATION OF RATES

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                         Page 4


<PAGE>

INTERNATIONAL BILLING SERVICES  CBIS PRESENTATION OF RATES

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                         Page 5


<PAGE>

INTERNATIONAL BILLING SERVICES  CBIS PRESENTATION OF RATES

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                         Page 6


<PAGE>

INTERNATIONAL BILLING SERVICES  CBIS PRESENTATION OF RATES

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                         Page 7


<PAGE>

INTERNATIONAL BILLING SERVICES  CBIS PRESENTATION OF RATES

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                         Page 8


<PAGE>

INTERNATIONAL BILLING SERVICES  CBIS PRESENTATION OF RATES

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                         Page 9


<PAGE>

INTERNATIONAL BILLING SERVICES  CBIS PRESENTATION OF RATES

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                         Page 10


<PAGE>

INTERNATIONAL BILLING SERVICES  CBIS PRESENTATION OF RATES

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                         Page 11


<PAGE>

INTERNATIONAL BILLING SERVICES  CBIS PRESENTATION OF RATES

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                         Page 12

<PAGE>

INTERNATIONAL BILLING SERVICES  CBIS PRESENTATION OF RATES

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                         Page 13


<PAGE>

INTERNATIONAL BILLING SERVICES  CBIS PRESENTATION OF RATES

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                         Page 14


<PAGE>
INTERNATIONAL BILLING SERVICES  CBIS PRESENTATION OF RATES

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                         Page 15


<PAGE>

INTERNATIONAL BILLING SERVICES  CBIS PRESENTATION OF RATES

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                         Page 16


<PAGE>

INTERNATIONAL BILLING SERVICES  CBIS PRESENTATION OF RATES

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                         Page 17


<PAGE>

INTERNATIONAL BILLING SERVICES  CBIS PRESENTATION OF RATES

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                         Page 18

<PAGE>

INTERNATIONAL BILLING SERVICES  CBIS PRESENTATION OF RATES

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                         Page 19


<PAGE>

INTERNATIONAL BILLING SERVICES  CBIS PRESENTATION OF RATES

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                         Page 20


<PAGE>

INTERNATIONAL BILLING SERVICES  CBIS PRESENTATION OF RATES

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                         Page 21


<PAGE>

INTERNATIONAL BILLING SERVICES  CBIS PRESENTATION OF RATES

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                         Page 22


<PAGE>

INTERNATIONAL BILLING SERVICES  CBIS PRESENTATION OF RATES

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                         Page 23
<PAGE>

INTERNATIONAL BILLING SERVICES  CBIS PRESENTATION OF RATES

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                         Page 24


<PAGE>

INTERNATIONAL BILLING SERVICES   CBIS REMINDERS


[*]


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                                          Page 1

<PAGE>

INTERNATIONAL BILLING SERVICES   CBIS REMINDERS


[*]


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                                          Page 2

<PAGE>

INTERNATIONAL BILLING SERVICES   CBIS REMINDERS


[*]


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                                          Page 3

<PAGE>

INTERNATIONAL BILLING SERVICES   CBIS REMINDERS


[*]


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                                          Page 4

<PAGE>

INTERNATIONAL BILLING SERVICES   CBIS REMINDERS


[*]


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


 
                                                                          Page 5

<PAGE>

INTERNATIONAL BILLING SERVICES   CBIS REMINDERS


[*]


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 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                                          Page 6
<PAGE>

                                                           EXHIBIT 10-31E



                                    ATTACHMENT "D"
                                          TO
                       STATEMENT PRODUCTION SERVICES AGREEMENT



1.  Section 6.1 is amended by inserting the words, "... for each category
    comprised of regular statements and reminder or treatment notices." at
    the end of the first sentence thereof.

2.  Section 6.1 is amended by adding the following at the end thereof:
    [*]

3.  Section 7.3 is amended by adding the following:
    [*]


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


<PAGE>

4.  Section 13.4 is amended by the following:

    "The parties agree that the forum for any suit or action under this
    Agreement shall be the State or Federal Courts sitting in Cincinnati,
    Ohio."

    CINCINNATI BELL INFORMATION             U.S. COMPUTER SERVICES
         SYSTEMS INC.

    /s/ Rudolph J. Frank                    /s/ Raymond W. Matteson
    ----------------------------            -----------------------
    Rudolph J. Frank                        Raymond W. Matteson
    President                               Vice President
    Communications Systems Group            Business Development

    Oct. 9, 1990                              October 9, 1990
    ----------------------------            -------------------------
    Date                                    Date

<PAGE>

                                    FIRST ADDENDUM
                                          TO
                       STATEMENT PRODUCTION SERVICES AGREEMENT



INTRODUCTION:  On October 9, 1990, U.S. COMPUTER SERVICES (USCS) and  CINCINNATI
BELL INFORMATION SERVICES (CBIS) entered into a Statement Production Services
Agreement (the "Agreement").  Subsequent to entering into the Agreement, CBIS
requested USCS to change certain forms and envelope pricing under the Agreement.
USCS was willing to make such changes based on minimum quantities and provided
that CBIS made certain commitments.  This Addendum is the result of negotiations
on these issues.

Wherever language contained in this Addendum conflicts with the terms of the
Agreement, the language contained in this First Addendum shall control.


The parties agree as follows:

1.  DEFINITIONS AND SPECIFICATIONS.  The "Replacement Attachment A" attached to
    this Addendum replaces Attachment A of the Agreement.  The specifications
    set forth in Replacement Attachment A meet or exceed in all instances the
    specifications in the CBIS Request for Proposal (RFP) dated October 25, 
    1990.

2.  TERMINATION OF PRIOR FORMS/ENVELOPE PRICING.  For the term of this
    Addendum, the parties hereby delete the prices in Items II, IV, V, VI and
    XIII in Attachment B of the Agreement and Paragraph 7.5 of the Agreement.

3.  NEW FORMS/ENVELOPE PRICING.  Forms and envelope prices will be:

    a.   FORMS:    [*] per thousand;[*]

    b.   SEND ENVELOPE: [*] per thousand in minimum Gang Run of [*] includes 
         2 color preprinting

    c.   RETURN ENVELOPE:    [*] per thousand in minimum Gang Run of [*] 
         includes 1 color preprinting

    d.   9 X 12 FLAT ENVELOPE:    [*] per thousand in minimum Gang Run of
         [*]


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
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                                         - 1 -

<PAGE>

    e.   ENVELOPE MODIFICATIONS:

         Additional colors   Add [*] per color per thousand;  Minimum Job Run
                             of [*] or [*] Set-Up Fee; total colors per envelope
                             limited to 3 outside and 1 inside

         Inside Privacy      Add [*] per thousand; Minimum Job Run of [*] or 
                             [*] Set-Up Fee

         Glassine            Add [*] per thousand; Minimum Job Run of [*] or
                             [*] Set-up Fee

         Move window         [*] charge per thousand; Minimum Job Run of [*] or 
                             [*] Set-Up Fee.  All window locations specified
                             by CBIS must meet U.S. Postal Service requirements
                             and USCS' manufacturing and inserting
                             requirements.

         Peel & Seal flap    Add [*] per thousand; available for 9 X 12 Flat
                             Envelope only

"Gang Run" means press run(s) which are (a) ordered at the same time and (b) 
involve forms or envelopes of the same size, paper weight, paper quality, and
method of construction.

"Job Run" means a portion of a Gang Run in which all print parameters and window
parameters are identical, including (but not limited to) color, one- or two-side
printing, print location(s) on the envelope, window placement, window numbers,
window material etc.

4.  INVENTORY MANAGEMENT FEE.  USCS will charge and CBIS agrees to pay an
    inventory management fee of [*] per one thousand Forms/Envelopes.  Said fee
    shall be assessed based on the number of Forms/Envelopes purchased by CBIS
    from USCS or handled by USCS but provided from other vendors of CBIS
    customers' choice.  The foregoing notwithstanding, the parties agree that
    USCS shall waive such fee for forms and envelopes during the interim
    conversion period until [*] for forms and envelopes existing
    in CBIS inventory as of [*] (new orders for forms and envelopes
    placed after


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 REQUEST.


                                         - 2 -

<PAGE>

    [*] during the interim conversion period shall be subject to this inventory
    management fee).  The inventory management fee shall be invoiced when
    forms/envelopes are ordered from USCS or received by USCS from other
    vendors, as relevant.

5.  FORMS/ENVELOPES PURCHASING PROCESS.

    a.   In order to be eligible for the prices in Paragraph 2, CBIS must place
         firm orders once for each calendar quarter in the following minimum
         amounts:

         (1)  FORMS:    [*] million per quarter

         (2)  SEND ENVELOPES:     Minimum Gang Run of [*] per quarter

         (3)  RETURN ENVELOPE:    Minimum Gang Run of [*] per quarter

         (4)  9 X 12 FLAT ENVELOPE:    Minimum Gang Run of [*] per quarter

    b.   CBIS must place firm orders once each quarter conforming to the
         following schedule:

              Order Date          For forms/envelopes to be used in--
              ----------          -----------------------------------

              December 1          January, February, March

              March 1             April, May, June

              June 1              July, August, September

              September 1         October, November, December

         To the extent that forms/envelopes are changed or established for new
         CBIS customers, the written notification to USCS must also comply with
         the time frames in Paragraph 1.4 of the Agreement.

    c.   USCS waives the minimum purchase requirements of Paragraph 5a until
         [*].

    d.   CBIS agrees that orders for systems with less than [*] subscriber
         statements per month shall be placed once per year rather than once
         per quarter.  Yearly orders may be placed on any of the Order Dates
         referenced in b above.



*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                         - 3 -

<PAGE>

    e.   Quarterly and yearly orders will be invoiced by USCS to CBIS
         approximately ten to fifteen days after the order is received.
         Payment in full is due within 30 days of the invoice date.

    f.   To the extent that any CBIS Customer needs additional forms or
         envelopes outside of the quarterly or yearly amounts ordered by CBIS
         for whatever reason (including, but not limited to, those needed
         because of new systems converted to USCS, changes in design or
         under-ordering by CBIS), then such additional forms and envelopes
         shall be supplied by USCS to CBIS on a mutually agreed as-quoted 
         basis.

    g.   If changes in design by CBIS or CBIS customers after a quarterly or
         yearly order has been placed results in unusable forms or envelopes in
         inventory or on order, CBIS shall not be entitled to any credit or any
         refund of the order or the Inventory Management Fee.

6.  PRICING IF MINIMUMS NOT MET.  [*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


                                         - 4 -

<PAGE>

    [*]

9.  CBIS EXCLUSIVITY COMMITMENT; USCS RIGHT TO BID ON CUSTOMER FORMS/ENVELOPES.
    CBIS agrees that it will not, during the term of the Agreement, directly or
    indirectly solicit or purchase from another entity any forms or envelopes
    used for its customers.  The parties understand that CBIS's customers may
    solicit bids from outside vendors for forms and envelopes and CBIS agrees,
    in good faith and to the extent possible, to urge such customers to allow
    USCS to take part in the bidding process, either through CBIS under this
    Agreement or on its own behalf.

10. STORAGE FEES FOR 3RD PARTY FORMS/ENVELOPES.  The Parties agree that,
    Paragraph 2.3 of the Agreement notwithstanding, CBIS customers may have
    forms and/or envelopes produced by a party or parties other than USCS 
    (hereinafter referred to as "Third Party Forms/Envelopes"), provided that
    such Third Party Forms/Envelopes meet the specifications set forth in 
    Replacement Attachment A and the terms, conditions and specifications in
    the CBIS RFP dated October 25, 1990, and further provided that CBIS pays to
    USCS the Inventory Management fee as set forth in Paragraph 4 of this
    Addendum.

[*]

13. MISCELLANEOUS.  Paragraph 3 of Attachment D of the Agreement is hereby
    deleted.

14. TERM OF ADDENDUM.  Paragraphs 4, 7, 9 and 12 of this Addendum shall remain
    in effect for the term of the Agreement.  The term of the remainder of this
    Addendum shall be from the date of its execution until October 9, 1993.  At
    that time, forms


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


                                         - 5 -

<PAGE>

    and envelope prices, terms, and specifications shall be subject to good
    faith renegotiation.  It is the intent of the parties to have forms and
    envelopes production included in the Agreement during the entire term of
    the Agreement.

Except as modified herein, all other terms and conditions of the Agreement shall
remain in full force and effect unchanged.

IN WITNESS WHEREOF, the parties hereto have executed this First Addendum as of
the ___________ day of _________________________, 1991.


CINCINNATI BELL INFORMATION                 U.S. COMPUTER SERVICES
    SYSTEMS, INC.

By: /s/ D R Cornely                         By: /s/ Raymond W. Matteson
- ---------------------------------           ----------------------------

Daniel R. Cornely                           Raymond W. Matteson
- ---------------------------------           ----------------------------
         (typed name)                                 (typed name)

         7/17/91                                      7/17/91
- ---------------------------------           ----------------------------
         (date)                                       (date)



                                         - 6 -

<PAGE>

                               REPLACEMENT ATTACHMENT A

                        SPECIFICATION FOR FORMS AND ENVELOPES

A.  "FORMS" means forms for CBIS customer billing statements meeting the
    following specifications

- ------------------------------------------------------------------------------
                        MINIMUM        SATISFACTORY RANGE          MAXIMUM
                        Reject      Lower               Upper      Reject
Test Names              Below:      Limit   Target      Limit      Above:
- ------------------------------------------------------------------------------
WEIGHT 25X38/500                               [*]
CALIPER
MULLEN
TEAR MD
TEAR CD
SMOOTHNESS FS
SMOOTHNESS WS
STIFFNESS (TABOR)MD
STIFFNESS (TABOR)CD
BRIGHTNESS FS
OPACITY
FOTOSIZE FS
POROSITY
ASH
MOISTURE
WAX PICK FS
CURL
HOT PH
ABRASION WS
FLUORESCENCE
STARCH LB/TON
DIRT

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                     Page 1 of 5

<PAGE>

A.  "FORMS" (continued)

FINISHED FORM CHARACTERISTICS          VALUE OR SPECIFICATION
                                  [*]
1.  INK
    a.   COLOR                    [*]

    b.   TYPE                     [*]
         i.   WEB FED PRESS       [*]

2.  FLATNESS (2 REAMS)            [*]

3.  PERFORATION
    a.   LOCATION                 [*]
    b.   TYPE                     [*]

4.  OFF-SET IMAGE PLACEMENT       [*]

5.  SHEET SIZE 8 1/2 X 11         [*]

6.  PACKAGING
    a.   500 SHEETS/REAM PACKAGE
    b.   CHIPBOARD TOP AND BOTTOM OF PACKAGE
    c.   LOOSE SHRINK WRAP (NO HEAT) POLYETHYLENE - FULLY SEALED
    d.   2500 (5 REAMS) PER CARTON TAPED FLAP

7.  CURL (IN REAM)                [*]

8.  PERFORATION LOCATION          [*]
    SPECIFICATIONS

9.  COLOR VOLUME IN LASER PRINT AREA
                                  [*]

B.  "SEND ENVELOPE" means an envelope meeting the following specifications:

    SIZE                [*]

    SEAM                [*]

    PAPER WEIGHT        [*]

    PAPER TYPE          [*]

    PRINT               [*]

    FLAP                [*]

    WINDOW              [*]

    CONSTRUCTION        [*]


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


                                     Page 2 of 5


<PAGE>

C.  "RETURN ENVELOPE" means an envelope meeting the following specifications:

    Size                [*]

    Seam                [*]

    Paper Weight        [*]

    Paper Type          [*]

    Print               [*]

    Flap                [*]

    Window              [*]

    Construction        [*]


D.  "9 X 12 FLAT ENVELOPE" means an envelope meeting the following
    specifications:

    Size                [*]

    Seam                [*]

    Paper Weight        [*]

    Print               [*]

    Flap                [*]

    Window              [*]

    Construction        [*]


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


                                     Page 3 of 5


<PAGE>

                               REPLACEMENT ATTACHMENT A

                               DESCRIPTION OF SERVICES

BILLING STATEMENT PRODUCTION SERVICES

         USCS will provide Customer the following services for prices set 
         forth in ATTACHMENT "B":

         [*]

DETAIL OF PRODUCTS FOR ATTACHMENT "B"

I.       STATEMENT PRINTING PER IMAGE

         Printing per image.  Image is defined as one print cycle where   
         printing may take place on one side of one sheet of paper no greater
         than 8.5 X 11 in size.  Duplex printing, in which an image may be
         placed on both sides of a piece of paper, thereby using two print
         cycles, is counted as two (2) images.  The imaging price includes
         inserting the statement and where appropriate collating and folding.

II.      [deleted]

III.     ELECTRONIC FORM

         Forms created and printed by laser.  Restrictions apply to usage if 
         form density slows the print process.

IV.      [deleted]

V.       [deleted]

VI.      [deleted]

VII.     PRE SORTING, PER MAIL PIECE
    
         Optimization of each mail piece for maximum postal discount; the level 
         discount is based on the address accuracy and density.

VIII.    INSERTING, PER PIECE

         Placement of each piece of paper, with the exception of sheet-fed
         statement pages, into the sending envelope.


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


                                     Page 4 of 5


<PAGE>

IX.      MAILING, PER PIECE

         Preparation of each mail piece for placement into the US Postal
         Service mail stream.

X.       PRIORITY HANDLING, PER PIECE

         Per piece premium for accelerated average 12 hour turnaround (only
         available on statements averaging three or less pages).

XI.      MICROFICHE

         14 X 18 frame Microfiche at 48 X magnification.

XII.     SPECIAL HANDLING

         One-time fees applicable to special processing required by individual
         situations.  See "RATE SHEET - CBIS" for descriptions and pricing.

XIII.    [deleted]


                                     Page 5 of 5

<PAGE>

                                     [LETTERHEAD]

October 5, 1993



Mr. Tom Clear
Vice President - Wireless Product Management
CINCINNATI BELL INFORMATION SYSTEMS, INC.
851 Trafalgar Court
Maitland, FL  32751

Dear Mr. Shouse:

    Re:  AMENDMENT TO FORMS AND ENVELOPES ADDENDUM

On July 17, 1991, Cincinnati Bell Information Systems, Inc. ("CBIS") and U.S.
Computer Services ("USCS") entered into that First Addendum (the "Forms and
Envelopes Addendum") to the Statement Production Services Agreement dated
October 1, 1990 (the "Agreement").  Under Paragraph 14 of the Forms and
Envelopes Addendum, [*]  When countersigned by CBIS, this letter will be an
amendment to the Forms and Envelopes Addendum.  The terms of the amendment are
as follows:

1.  Paragraph 14 of the Forms and Envelopes Addendum is deleted in its entirety
    and replaced with the following:

    "14. TERM OF ADDENDUM.  The First Addendum shall remain in effect for the
         term of the Agreement. [*]


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


<PAGE>

Mr. Tom Clear
October 5, 1993
Page 2



2.  Paragraph 3a of the Forms and Envelopes Addendum is deleted in its entirety
    and replaced with the following:

    "3.a.     Forms:    [*]

3.  Subparagraph entitled "Inside Privacy" of Paragraph 3e (Envelope
    modifications) of the Forms and Envelopes Addendum is deleted and replaced
    with the following:

    "3.e.     Envelope modifications
              ...
              Inside Privacy      [*]

4.  Except as modified above, all other terms and conditions of the Forms and
    Envelopes Addendum remain in force and effect unchanged.

If the above conforms with your understanding of our agreement, please execute
in the space provided below on both duplicate originals of this letter, retain
one original for CBIS' records and return the other duplicate original to USCS
for our records.

Sincerely,

U.S. COMPUTER SERVICES

/s/ Sally Shuler

Sally Shuler
Vice President - Major Accounts

MGJ/jhs

AGREED AND ACCEPTED this 29 day of November, 1993.

Cincinnati Bell Information Systems, Inc.

By: Thomas H. Clear
    ------------------
    Mr. Tom Clear
    Vice President - Wireless Product Management


*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


<PAGE>

                                                                   EXHIBIT 10.32


<PAGE>


                                             Agreement  No. 8003


                            TANDEM ALLIANCE AGREEMENT


     THIS AGREEMENT is made between TANDEM COMPUTERS INCORPORATED, a Delaware
corporation having offices at 19333 Vallco Parkway, Cupertino, California 95014
("Tandem"), and CableData, Inc., a California corporation and a wholly owned
subsidiary of U.S. Computer Services, having offices at 2969 Prospect Park
Drive, Rancho Cordova, California 95670, on behalf of itself and its parent,
affiliates and subsidiaries ("Alliance Member"). Tandem appoints Alliance Member
as a VAR and Software House, on a non-exclusive basis, in accordance with the
terms and conditions of this agreement which consists of this signature page and
the following initialed Schedules and Exhibits, each of which is incorporated
herein by this reference ("Agreement").


               SCHEDULES/EXHIBITS:

               TA-A GENERAL TERMS AND CONDITIONS
                    A1  Export Restricted Countries

               TA-B VAR TERMS AND CONDITIONS
                    B1  Application Package Description
                    B2  Discounts by Product
                    B3  Mandatory Software Sublicense Terms

               TA-C PROFESSIONAL SERVICES TERMS AND CONDITIONS

               TA-E SOFTWARE HOUSE TERMS AND CONDITIONS
                    E1  Prospect Form
                    E2  Notification of Software House Fee Eligibility
                    E3  Software House Fee Payment Approval
                    E4  Application Package Description
                    

               TA-F SOFTWARE SERVICE PLANS 

               TA-G PRODUCT RENTAL AGREEMENT
                    


THE PARTIES HAVE READ THE ENTIRE AGREEMENT, UNDERSTAND THAT THE GENERAL TERMS
AND CONDITIONS APPLY FULLY TO ALL SCHEDULES AND EXHIBITS, AND HAVE THE LEGAL AND
OTHER AUTHORITY TO EXECUTE AND PERFORM HEREUNDER.


CABLEDATA, INC. "Alliance Member"       TANDEM COMPUTERS INCORPORATED "Tandem"  
                                   
By: James C. Castle                By: John J. Sims
   --------------------------         --------------------------------
Name: JAMES C. CASTLE              Name:    JOHN J. SIMS
     ------------------------           ------------------------------
Title: CHAIRMAN & ceo              Title:   VICE PRESIDENT
      -----------------------            -----------------------------
Date:                              Effective Date:     January 1, 1995
     ------------------------                     --------------------

<PAGE>

                                                           Agreement # _________
                                  SCHEDULE TA-A

                          GENERAL TERMS AND CONDITIONS

1.  DEFINITIONS.  "CUSTOMER" means a current or prospective end-user of the
Products, excluding any entity that directly or indirectly owns or controls or
is owned or controlled by Alliance Member.  "HARDWARE" means hardware products
sold by Tandem. "PRODUCTS" mean Hardware and Software.  "INSOLVENT" means that a
party (i) ceases to conduct business in the normal course, (ii) becomes
insolvent, (iii) enters into suspension of payments, moratorium, reorganization
or bankruptcy, (iv) makes a general assignment for the benefit of creditors, (v)
admits in writing its inability to pay debts as they mature, (vi) suffers or
permits the appointment of a receiver for its business or assets, or (vii)
avails itself of or becomes subject to any other judicial or administrative
proceeding that relates to insolvency or protection of creditors' rights. 
"SERVICES" mean any of the Integration Services described in Schedule TA-D or
the Custom Services described in Schedule TA-F performed by Alliance Member for
a Customer.  "SOFTWARE" means software, in object code only, including
documentation and related materials, furnished by Tandem under this Agreement,
excluding software provided with a shrink-wrap license.  As to a shrink wrap
license, Alliance Member agrees to be bound by the terms set forth therein,
unless it notifies Tandem of any objections and returns the applicable software
to Tandem within 10 days of receipt thereof.  "SOFTWARE PACKAGE" means any (i)
Application Package described in Schedules TA-B or TA-E, (ii) Integrator
Software Product described in Schedule TA-D or (iii) Custom or Utilities Package
described in Schedule TA-F, which is developed and/or licensed by Alliance
Member for use with Products.  "TANDEM" means Tandem Computers Incorporated and
any wholly owned Tandem subsidiary, except U-B Networks.

2.  TERM AND TERMINATION.  The Agreement is effective as of January 1, 1995
("Effective Date") and will continue for an initial term of five (5)  years. 
Any Schedules entered into as part of this Agreement will be coterminous with it
regardless of when signed.  A party may terminate this Agreement or any Schedule
upon notice to the other party if the other party  (i) fails to perform any of
its obligations under this Agreement for a period of 30 days after receipt of
notice of such failure, (ii) undergoes a direct or indirect change in ownership
or control existing on the Effective Date and the notified party determines in
its sole reasonable discretion that the change may adversely affect its on-going
business or (iii) becomes Insolvent.

3.  COOPERATION AND IMPLEMENTATION.  The parties agree to cooperate in marketing
efforts directed towards Customers.  Neither party will knowingly contradict the
other's technical recommendations to Customers without its prior consent.  Upon
request, a party will sign any  local agreements and take other steps required
to implement this Agreement and comply with local law.  

4.  ALLIANCE MEMBER OBLIGATIONS.  Alliance Member will maintain each Software
Package to ensure proper operation and performance at the then-current revision
level of Tandem's applicable operating system, including revisions resulting
from mandatory field change orders for Hardware and periodic updates or releases
for Software.  Alliance Member will use reasonable efforts to actively market
its Software Packages and Services to Customers for use with Products and will
install and support Software Packages and provide Services in accordance with
its agreements with Customers.  Alliance Member will purchase, lease or
continuously have access to one or more Tandem computer systems operating at the
then-current revision level of the applicable Tandem operating system
("Development System") to be used exclusively by Alliance Member in the country
ordered solely in accordance with Tandem's then-current Development System
Policy & Guidelines (the "Development System Guidelines").

5.  RELATIONSHIP OF PARTIES.  The parties are independent contractors and no
other relationship is intended.  Neither party shall act in a manner which
expresses or implies a relationship other than that of independent contractor. 
This Agreement is not exclusive in any respect and either party may enter into
similar or other agreements with third parties.

6.  NO ENDORSEMENT.  NEITHER PARTY WILL HAVE ANY RIGHT OR AUTHORITY TO ACT ON
BEHALF OF THE OTHER PARTY NOR WILL EITHER PARTY REPRESENT THAT IT HAS SUCH RIGHT
OR AUTHORITY OR THAT THE OTHER PARTY HAS ENDORSED, GUARANTEED OR WARRANTED ITS
PRODUCTS, SOFTWARE PACKAGES OR SERVICES.

7.  LIMITATION ON LIABILITY.  Except for payment obligations, a party will not
be liable for any failure or delay in performing an obligation that is due to
causes beyond its reasonable control, so long as the party gives prompt notice
to the other party and makes all reasonable efforts to perform.  IN NO EVENT
WILL A PARTY BE LIABLE FOR ANY SPECIAL, PUNITIVE, MORAL, INCIDENTAL OR
CONSEQUENTIAL DAMAGES, WHETHER OR NOT FORESEEABLE, INCLUDING, BUT NOT LIMITED
TO, LOST PROFIT OR DATA.

8.  CONFIDENTIAL INFORMATION.

 a.  Protection of confidential  information.
 
     Should either party disclose any of its  information for any purpose
     in connection with this Agreement, the party receiving the information
     shall  maintain the information in confidence, shall use at least the
     same degree of care to maintain the secrecy of the information as it
     uses in maintaining the secrecy of its own proprietary, confidential
     and trade secret information, shall always use at least a reasonable
     degree of care in maintaining the secrecy of the information, shall
     use the information only for the purpose of performing its obligations
     under this Agreement unless hereafter agreed in writing by the other
     party.  Neither party shall disclose any such information to any
     person except those of its employees having a need to know in order to
     accomplish the sole purpose stated above, and shall require each
     employee, before he or she receives direct or indirect access to the
     information, to acknowledge the confidential, proprietary and trade
     secret nature of the information and to agree to be bound by this
     Section 8.  Each party shall deliver to the other party, in accordance
     with any request from the other party, all copies, notes, packages,
     diagrams, computer memory media and all other materials containing any
     portion of the other party's confidential information.

                                                                 Schedule TA-A-1

<PAGE>

  b. Limitation on obligations.
  
     Neither party shall have an obligation with respect to any portion of
     such information which (i) was known to it prior to receipt from the
     other party, (ii) is lawfully obtained by either party from a third
     party under no obligation of confidentiality, (iii) is or becomes
     publicly available other than as a result of any act or failure to act
     of either party or (iv) is independently developed by the receiving
     party.
     
  c. Included within confidential information.
  
     For purposes of this Section 8, confidential information made
     available to Tandem by  Alliance Member may include, without
     limitation, the Application Packages and all documentation and code
     relating thereto, and confidential information made available to
     Alliance Member  by Tandem may include without limitation all
     information relating to the Products.  Tandem reserves all proprietary
     rights in and to all designs, inventions, patents, know-how,
     techniques, and engineering details and other data pertaining to the
     Products.  Alliance Member  reserves as proprietary all rights in and
     to all copyrights, designs, inventions, patents, know-how, techniques,
     and engineering details and other data pertaining to the Application
     Packages.
     
9.  INDEMNIFICATION.  Tandem will, with respect to Products, and Alliance Member
will, with respect to Software Packages and Services,  defend or settle any
claim against the other party (i) resulting from the performance or use of
Products, Software Packages or Services, and any information the indemnifying
party supplies about the same, or (ii) that a Product, Software Package or
Service infringes any patent, utility model, industrial design, copyright, trade
secret, mask work, trademark or servicemark, provided the other party (a)
promptly notifies the indemnifying party in writing of the claim, and (b)
cooperates with the indemnifying party in and grants it sole authority to
control the defense and any related settlement.  The indemnifying party will pay
the costs of such defense and settlement and any costs and damages finally
awarded against the other party.  With respect to Products sold or licensed by
Tandem to Alliance Member, if a claim of infringement is made or appears likely
to be made, Tandem may procure the right for Alliance Member to continue using
the Product, may modify it or may replace it; but, if use of a Product is
enjoined by a court or Tandem determines that none of the foregoing alternatives
is reasonably available, Tandem will take back the Product and refund its
depreciated value.  Tandem has no liability for any such claim arising from (i)
Tandem's compliance with any designs, specifications or instructions of Alliance
Member, (ii) modification of a Product by Alliance Member or a third party,
(iii) use of a Product in a way not specified or approved in writing by a Tandem
Vice President or higher, or (iv) use of the Product with products not supplied
by Tandem.  THE ABOVE TERMS STATE THE INDEMNIFIED PARTY'S EXCLUSIVE REMEDY AND
THE INDEMNIFYING PARTY'S ENTIRE LIABILITY FOR CLAIMS OF INFRINGEMENT.

10.  TRADEMARKS.  All trademarks, service marks, trade names, logos or other
words or symbols identifying the Products, Services, Software Packages or
businesses of either party (the "Marks") will remain the exclusive property of
the respective party, whether or not specifically recognized or perfected under
local laws.  Neither party will acquire any right, or take any action that
jeopardizes the proprietary rights in the Marks of the other party, except the
right to use such Marks during the term of this Agreement to advertise and
promote Products, Services and Software Packages in accordance with this
Agreement.  All advertisements and promotional materials will (i) clearly
identify the respective party as the owner of its Marks, (ii) conform to the
respective party's then-current trademark or logotype guidelines, and (iii)
otherwise comply with any local notice or marking requirement.  Any use by a
party of the Marks of the other party during the term of this Agreement will
inure to the benefit of such other party.

11.  EXPORT CONTROLS.  Alliance Member acknowledges that the Products,
Confidential Information and all related technical documents and materials are
subject to export controls under the U.S. Export Administration Regulations and
related U.S. laws.  Alliance Member will (i) comply strictly with all legal
requirements established under these controls, (ii) cooperate fully with Tandem
in any official or unofficial audit or inspection that relates to these controls
and (iii) not export, re-export, divert, transfer or disclose, directly or
indirectly, any Product, Confidential Information or related technical documents
or materials or any direct product thereof to any country (or to any national or
resident thereof) which the U.S. Government determines from time to time is a
country (or end-user) to which such export, re-export, diversion, transfer or
disclosure is restricted, without obtaining the prior written authorization of
Tandem and the applicable U.S. Government agency.  If Alliance Member is located
outside of the United States, see Exhibit A1 for the list of export restricted
countries.

12.  UNLAWFUL PAYMENTS.  Neither Alliance Member nor Tandem will use any payment
or other benefit derived from the other to offer, promise or pay any money, gift
or any other thing of value to any person for the purpose of influencing
official actions or decisions affecting this Agreement, while knowing or having
reason to know that any portion of this money, gift or thing will, directly or
indirectly, be given, offered or promised to (i) any person acting in an
official capacity for any government or its instrumentalities (including
government-owned or controlled corporations) or any non-governmental client or
prospective client or (ii) any political party, party official or candidate for
political office.

13.  ASSURANCE OF PAYMENTS.  U.S. Computer Services guarantees the timely
payment by its Subsidiaries and Affiliates of all amounts due to Tandem for
Products and Services under this Agreement.

14.  TARGETED MARKET:

  a.  To Cable Television Multiple System Operators (CATV MSO) customers,
      Alliance Member will provide products as a Value Added Reseller ("VAR")
      for the NonStop Kernel Products under Schedule TA-B and as a Software
      House ("SWH") for Integrity Products under Schedule TA-E.  This Section
      14.a applies to Alliance Member's existing DDP/SQL Applications as well
      as to the Intelecable products under development by Alliance Member.

  b.  To all other potential customers outside the CATV MSO market defined in
      14.a above. Alliance Member will provide both NonStop Kernel and
      Integrity Products as a SWH only.

                                                              Schedule TA-A-2

<PAGE>

  c.  Alliance Member will act as a non-exclusive VAR or SWH of Products for
      sale and licensing solely in conjunction with Application Packages and
      Application Computer Systems in the markets ("Targeted Markets") as
      defined in Schedules TA-B and TA-E.

  d.  All countries outside of this Targeted Market will be addressed by the
      parties on a case by case basis and sales outside of the Targeted
      Market will be quoted to Alliance Member by Tandem on a country by
      country basis, subject to local agreements with Tandem subsidiaries or
      distributors.  In the event the Targeted Market includes one or more
      countries within the European Community, nothing in Schedule TA-B shall
      be construed as preventing Alliance Member from licensing or selling
      Application Systems in any part of the European Community on the
      conditions set forth in Schedule TA-B.

15.   ALLIANCE MEMBER AUTHORIZED TO SELL WITHIN THE TARGETED MARKET; TANDEM'S
      RIGHT OF FIRST REFUSAL ON CERTAIN RESALE EQUIPMENT.

     Tandem Products purchased or licensed under this Agreement by Alliance
Member shall be resold, leased or licensed under this Agreement only to End-User
Customers within the Targeted Market.  Alliance Member shall not license, lease,
sell or otherwise transfer Products to customers other than to End-User
Customers within the Targeted Market.  However, should Hardware sold and used by
Alliance Member within the Targeted Market become available for resale, then
Alliance Member may sell said Hardware to a broker for users outside the
Targeted Market, provided that Alliance Member shall first offer said Hardware
to Tandem for purchase and Tandem and Alliance Member shall have a period of ten
(10) working days from the date of notification by Alliance Member, or such
longer period as agreed to by the parties, to reach agreement on the terms and
conditions of such purchase.  Alliance Member shall not be required to offer
Hardware designated as discontinued from Tandem's then-current product and price
guide to Tandem prior to such resale outside the Targeted Market.  The parties
agree that Software cannot be transferred with any Hardware resale.

16.  PROMOTION OF TANDEM PRODUCTS BY ALLIANCE MEMBER WITHIN A LOCATION.

     Alliance Member shall actively and aggressively promote and market Tandem's
Products to the End-User Customers as described herein.  The preceding
notwithstanding, the parties understand that this arrangement is non-exclusive,
and that Alliance Member may promote and market other products in addition to
Tandem's Products.

     Tandem reserves the right to enter into agreements with others for the
purpose of marketing and distributing Products and related support, or any other
products providing the same or similar function as Application Packages within
the Targeted Market.  Tandem reserves the right to act on its own behalf, or
enter into agreements with others, for the purpose of marketing and distributing
Products and related support, or any other products providing the same or
similar function as Application Packages, either directly or indirectly, outside
the Targeted Market.

17.  SERVICE BUREAU.  In all cases where Alliance Member, in the capacity of a
service bureau, provides full service computing to a Customer, Alliance Member
may purchase the necessary Hardware and Software Products from Tandem under the
terms and conditions of Schedules TA-A and TA-B and TA-F of this Agreement.

18.  HARDWARE MAINTENANCE.  Hardware maintenance will be provided to Alliance
Member under the terms and conditions of the Agreement for Maintenance Services
between Tandem and Alliance Member dated 2-15-92, as amended, or any subsequent
maintenance agreement between the parties.

19.  SOFTWARE LICENSE AND SOFTWARE SERVICES.  Where Alliance Member, in the
capacity of a service bureau, provides computing service to a Customer,  Tandem
will provide to Alliance Member  end-user Software  licenses under the Software
Sublicense Terms set forth in Exhibit B3-1 of TA-B.  Tandem will provide
Software Services under the terms and conditions of  the Software Service Plans
in Schedule TA-F, hereof.  

20.  RENEWALS.  The Discounts and Fee structures set forth in Schedules TA-B and
TA-E shall be in effect through January 1, 1997.  Thereafter, Discounts and Fee
structures are subject to change and will be renewable annually ("Renewal
Period").   Tandem agrees to give Alliance Member preferential consideration in
the establishment of Discounts and Fee structures for subsequent Renewal Periods
under this Agreement based upon Alliance Member's volume relative to other
Tandem VARs with similar volumes and irrespective of other contract terms,
unless such other contract terms are material and substantial and reasonably
justify Tandem providing more favorable discounts and fee structures to any
other Tandem VAR.

21.  INTRODUCTION OF NEW PRODUCTS:
     a.  Tandem reserves the right to make available new Products at
         different Discount levels and Fee structures which may be included
         hereunder during the term of this Agreement.
     b.  In addition to DDP/SQL and Intelecable, Alliance Member may
         introduce additional applications which may be included
         hereunder during the term of this Agreement.

22.  HOLDBACK TERMS.  Pursuant to the Holdback Provisions of the Development
Agreement of December 6, 1994 between Tandem and Alliance Member ("Development
Agreement"), the parties agree that fees and discounts as stated in Schedules
TA-B and TA-E will be reduced as payment is made to Tandem for amounts owed to
Tandem by Alliance Member pursuant to the Development Agreement.  The following
Holdback amounts shall be credited by Tandem toward amounts owed under the
Development Agreement, which will be amended to reflect the Holdback terms
stated herein:


                                                                 Schedule TA-A-3

<PAGE>


a.  From the VAR Agreement, Schedule TA-B:

    For the first year:                 [*] discount holdback for repayment
    For the second year:                [*] discount holdback for repayment
    For the third thru fifth years:     [*] discount holdback for repayment
  
b.  From the SWH, Schedule TA-E:
  
  1.  In the North American CATV market:

      For the first year:               [*] discount holdback for repayment
      For the second year:              [*] discount holdback for repayment
      For the third thru fifth years:   [*] discount holdback for repayment
     
  2.  In the rest of market:

      For the first year:               [*] discount holdback for repayment
      For the second year:              [*] discount holdback for repayment
      For the third thru fifth years:   [*] discount holdback for repayment

23.  NOTICES.  Any notice, request or consent under this Agreement will be given
in writing and will be sent by confirmed telefax, personal delivery, overnight
courier service or registered or certified mail, postage prepaid, to the address
for each party stated on the first page of this Agreement, or to such other
address as such party may designate by notice in accordance with the provisions
of this Section.  Notices to Tandem will be directed to both the Vice President
and the Group Counsel of Tandem Alliance Group, and notices to Alliance Member
will be directed to the signatory to this Agreement or as otherwise designated
by Alliance Member.  Any notice delivered by confirmed telefax or personal
delivery will be deemed to have been received the day it is sent.  Any notice
sent by overnight courier service will be deemed to have been received the day
after it is sent.  Any notice sent by registered or certified mail will be
deemed to have been received on the 5th business day after its date of posting. 


24.  ESCALATION.  Any dispute between the parties relating to this Agreement
will first be submitted in writing to a designated senior executive of both
Tandem and Alliance Member who will meet and confer in an effort to resolve such
dispute.  Any decisions of the executives will be final and binding on the
parties.  In the event the executives are unable to resolve any dispute within
30 days after submission to them, either party may refer any dispute to a court
of final jurisdiction or, if both parties agree, to arbitration.

25.  MISCELLANEOUS PROVISIONS.  All currency conversions will be based on the
closing exchange rate quoted in the edition of the Wall Street Journal available
in the geographical location of the Customer for the last business day of the
month before the date that Tandem receives a payment under this Agreement.  All
taxes and governmental charges, including any penalties and interest, assessed
or imposed by any jurisdiction ("Taxes") will be borne by Alliance Member and
Tandem will withhold such from payments as required by law.  Any holding that a
provision of this Agreement is invalid or unenforceable will not affect the
validity or enforceability of the other provisions of this Agreement.  This
Agreement is the parties' entire agreement relating to the subject matter hereof
and supersedes all prior or contemporaneous oral or written communications,
proposals and representations concerning the same.  Modifications to this
Agreement must be in writing and signed by an authorized representative of each
party.  Any waiver of any provision of this Agreement, or a delay by either
party in the enforcement of any right hereunder, shall neither be construed as a
continuing waiver, nor create an expectation of non-enforcement of that or any
other provision or right.  Neither party may assign or delegate this Agreement
or any of its rights or obligations without prior consent from the other party,
except that Tandem may assign its right to payment, and any attempt to do so
will be void.  This Agreement will be governed by and interpreted in accordance
with the laws of the State of California, excluding its conflict of laws rules
and principles.  The parties specifically exclude the United Nations Convention
on Contracts for the International Sale of Goods from this Agreement.  Any
action brought in connection with this Agreement must be commenced within two
years and one day after the cause of action has accrued.  Nothing in this
Agreement will affect the limitation period applicable to any action or
proceeding for (i) the unauthorized use or disclosure of Confidential
Information or (ii) the infringement of either party's proprietary rights.  The
terms, limitations and warranties contained in this Agreement that by their
sense and context are intended to survive the term shall so survive, including,
without limitation, its confidentiality, export control and limitation on
liability  provisions and all payment obligations.    In the event of an
inconsistency between Schedule TA-A and another Schedule, the other Schedule
will prevail.

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                                 Schedule TA-A-4
<PAGE>

                                   EXHIBIT A1

                           EXPORT RESTRICTED COUNTRIES

     Albania
     Armenia
     Azerbaijan
     Belarus
     Bulgaria
     Cambodia
     Cuba
     Estonia
     Georgia
     Haiti
     Iran
     Iraq
     Kazakhstan
     Kyrgyzstan
     Laos
     Latvia
     Libya
     Lithuania
     Moldova
     Mongolia 
     North Korea
     The People's Republic of China
     Poland
     Romania
     Russia
     South Africa Military and Police entities
     Syria
     Tajikistan
     Turkmenistan
     Ukraine
     Uzbekistan
     Vietnam
     Federal Republic of Yugoslavia (Serbia and Montenegro and Serbia held areas
     in Croatia and Bosnia)

                                                                    Exhibit A1-1
<PAGE>

                                                            Agreement # ________
                                  SCHEDULE TA-B

                            VAR TERMS AND CONDITIONS

1.  DEFINITIONS.  "APPLICATION PACKAGE" means any of the software application
products described in Exhibit B1 developed and/or licensed by Alliance Member
for use with Products.  "APPLICATION SYSTEM" means a computer system consisting
of an Application Package and Products which Alliance Member resells and
sublicenses to Customers within the Targeted Market, and which may include other
products developed or procured by Alliance Member.  "DISCOUNT" means the
discount off the List Price of a Product set forth in Exhibit B4, B5 or B6
which applies so long as Alliance Member satisfies its obligations under this
Agreement.  "DISCOUNTED PRICE" means the List Price of a Product, less its
Discount.  "LIST PRICE" means the price of a Product set forth in the Price
Guide on the date of acceptance of an Order for the country where the Product
will be installed and used.  "ORDER" means a written order for Products
submitted by Alliance Member to the Tandem office from which Products are
purchased or licensed.  "PRICE GUIDE" means Tandem's then-current published
price guide for the country from which Products are purchased or licensed. 
"SOFTWARE LICENSE FEE OR CHARGE" means the license fee or charge for Software
set forth in the Price Guide on the date of acceptance of an Order.  "SUBLICENSE
AGREEMENT" means the agreement used by Alliance Member to sublicense the
Software to Customers.  For Customers located outside the United States, the
Sublicense Agreement will contain any additional or different terms required by
the local Tandem subsidiary or local law, and may be subject to governmental
approval, registration or notification in a particular country.  "TARGETED
MARKET" means the North American market area described in this Agreement. 
"TOOLS" means any computer program developed or provided by Tandem hereunder and
used to standardize or simplify routines or functions, enhance productivity, or
assist in the maintenance of any Product.  Tools may include metrics, routines,
diagnostics, templates or other devices. 

2.  APPOINTMENT.  Tandem appoints Alliance Member and Alliance Member accepts
such appointment as a non-exclusive value-added reseller ("VAR") of Products for
sale or licensing solely as a component of Application Systems in the Targeted
Market.

3.  RESELLER OBLIGATIONS.

     3.1  BEST EFFORTS AND ADDED VALUE.  During the term of this Schedule,
Alliance Member will use reasonable best efforts to actively and diligently
develop, promote, market, solicit orders for, maintain and support the
Application Systems solely within the Targeted Market, consistent with ethical
business practices and in a manner that reflects favorably on the Products and
the good will and reputation of the parties.  Except for Development Systems,
all Products purchased or licensed by Alliance Member under this Schedule will
be incorporated into Application Systems containing an Application Package which
is a significant functional and value enhancement to Products.  To the extent
new Product information is made generally available, Alliance Member will use
reasonable best efforts to notify Customers of new Products (e.g., Hardware
announcements and Software releases).

     3.2  SUPPORT.  Alliance Member will operate as an independent turnkey
provider of Application Systems and related maintenance and support, including
system configuration, requiring no maintenance or support from Tandem, except as
expressly provided in this Schedule.  In addition to the obligations in Section
4 of Schedule TA-A, Alliance Member will make available to Customers, at a
reasonable charge to be determined by Alliance Member, first-class Hardware
maintenance and Software support services, including but not limited to, first-
call support of Software according to Tandem's then-current local first-call
support policy.  Alliance Member may subcontract with Tandem for Hardware
maintenance or Software support or use best efforts to cause Customers to
execute Tandem's then-current Hardware maintenance or Software support
agreement.  Other than warranties described in Section 10 below, Tandem is not
obligated to support or maintain Products hereunder unless Alliance member or
Customer enters into a separate maintenance or support agreement with Tandem. 
All Sublicense Agreements must describe the Software support obligations of
Alliance Member under this Section.  

     3.3  WARRANTY OF TITLE.  Alliance Member warrants that it has clear title
to and ownership of each Application Package or has the legal right to market
and sublicense the Application Package.

4.  PERFORMANCE OF ALLIANCE MEMBER OBLIGATIONS BY TANDEM.  If Tandem performs
any of Alliance Member's material obligations, whether at the request of
Alliance Member or the reasonable request of a Customer due to Alliance Member's
failure to promptly perform such obligations following notification of such
failure by Customer, Tandem may charge Alliance Member Tandem's then-current
rates for such services.  Such services may include, but are not limited to,
sales and marketing assistance, first-call support for Software and systems
analyst support.

5.  ORDERS AND DELIVERY.

     5.1  ORDERS AND SHIPMENT.  All Orders are subject to acceptance by Tandem. 
Preprinted terms on an Order will not be effective.  Additional or different
terms will be effective only if Tandem accepts them in writing.  All Orders
accepted before this Agreement expires which provide for shipment within 90 days
of expiration will be honored, if Alliance Member is not in default under this
Schedule.  Tandem and Alliance Member will establish a shipment schedule for
each Order.  Tandem will select the carrier and method of shipment.  In
countries where Tandem has a wholly-owned subsidiary, Tandem will arrange for
off-loading and customs clearance of Products in such country and transportation
to the initial delivery point specified in the accepted Order.  Alliance Member
will pay transportation costs from customs to the initial delivery point and all
other associated charges and duties. 

                                                                 Schedule TA-B-1
<PAGE>

     5.2  TITLE AND RISK OF LOSS.  Title to Hardware will pass to Alliance
Member upon shipment from Tandem.  Tandem will bear the risk of loss or damage
to the Products to the initial delivery point, except for loss or damage caused
by Alliance Member, war, nuclear reaction or radiation, or radioactive
contamination.  Alliance Member will promptly inspect all shipments upon arrival
at the initial delivery point, immediately report to Tandem any loss or damage,
and retain any damaged Product in its original packaging for inspection by
Tandem or its insurer.

     5.3  CANCELLATION AND RESTOCKING FEES.  Alliance Member will pay a
cancellation fee of 10% of the Discounted Price for any ordered Product canceled
less than 30 calendar days prior to its planned shipment date and a restocking
fee of 15% of the Discounted Price if Tandem accepts return of a Product which
was delivered as ordered.  For Discount purposes, canceled and returned Products
will not count toward the required "Purchase Volume" (described in Exhibits B4-
B6).

     5.4  DOCUMENTATION.  Alliance Member will receive one set of customary
Product documentation free of charge.

     5.5  NO DUTY TO SHIP.  Tandem is not obligated to sell, license or ship
Products if Alliance Member stops doing business, becomes insolvent, materially
breaches the Agreement or, in Tandem's reasonable judgment, represents in any
way a financial risk to Tandem.  Alliance Member will furnish to Tandem any
financial or business information reasonably requested by Tandem to determine
that Alliance Member is financially capable of performing its obligations.

6.  TAXES.  All amounts payable under this Agreement are exclusive of Taxes
based on (i) gross revenue, (ii) payments under this Agreement, (iii) the
delivery, possession or operation of the Products, (iv) the execution or
performance of this Agreement, or (v) otherwise.  Taxes shall not include net
income, net worth or franchise taxes assessed on Tandem.  Alliance Member will
pay all Taxes or provide Tandem with a certificate of exemption acceptable to
the appropriate taxing authority prior to shipment of the Product.  If any Taxes
are required to be withheld, Alliance Member will furnish Tandem with official
tax receipts and other evidence of the payment of any income tax required to be
withheld on behalf of Tandem sufficient to permit Tandem to substantiate
Tandem's claim for a credit against Tandem's United States federal income tax. 
In the event Alliance Member fails to furnish Tandem official Tax receipts as
stated herein within a reasonable time, Alliance Member agrees to pay Tandem an
amount such that the net amount after withholding of such Taxes will equal the
amount that would have been otherwise payable under this Agreement.

7.  SECURITY INTEREST.  In the normal course of business Tandem will not
request, nor will Alliance Member be required to file and perfect, any UCC
security filing.  Tandem will provide Alliance Member with a variable unsecured
credit line that will be determined by Tandem which will be subject to periodic
review by Tandem and may be adjusted or withdrawn as Tandem deems necessary. 
Alliance Member's orders for Tandem Products in excess of the unsecured credit
line shall be secured by Alliance Member with a stand-by letter of credit.  No
Tandem Products in excess of the unsecured credit line will be shipped until
Alliance Member has, at Tandem's request, delivered to Tandem a stand-by letter
of credit acceptable to Tandem.

8.  PRICES, DISCOUNTS AND PAYMENT TERMS.  Alliance Member will pay the
Discounted Price for each accepted Order.  A Product's List Price will not
increase if shipment is made within 3 months of the date Tandem accepts an
Order.  If a Product's price set forth in the Price Guide is lower on the date
of shipment than the List Price, Alliance Member will receive the lower price. 
If Alliance Member sells, licenses, leases or otherwise transfers a Product
other than to a Customer within the Targeted Market, Tandem may invoice Alliance
Member for the difference between the Product's Discounted Price and its List
Price.  Alliance Member will pay each invoice in full within sixty (60) days of
the date of the invoice in the currency in which the List Price was quoted.
     
9.  SOFTWARE LICENSE.

     9.1  RIGHT TO SUBLICENSE.  Tandem grants Alliance Member a non-exclusive,
non-transferable right to sublicense the Software to Customers for use solely on
designated Application Systems within the Targeted Market.  Before delivering
any Software to a Customer, Alliance Member will cause each Customer to execute
a Sublicense Agreement containing terms for the sublicensing of the Software no
more favorable to Customer than the terms set forth in this Agreement and
containing the mandatory software sublicense terms attached hereto as Exhibit
B3.  The Sublicense Agreement will not be modified without Tandem's prior
written consent.  Upon request, Alliance Member will provide Tandem with a copy
of each executed Sublicense Agreement and will assist Tandem in any review or
verification of Alliance Member's or a Customer's use of the Software or
compliance with the Sublicense Agreement.

     9.2  SOFTWARE LICENSE FEES OR CHARGES.  For each sublicense of Software to
a Customer, Alliance Member will pay Tandem the Software License Fee or Charge,
regardless of whether similar fees have been applied to, or received from, the
Customer by Alliance Member.

     9.3  ENFORCEMENT.  At its own expense, Alliance Member will promptly and
effectively take all necessary steps to enforce the Sublicense Agreement,
including bringing actions for seizure or injunctive relief against a Customer
who has breached it.  Alliance Member will notify Tandem of such breach and
Alliance Member's corrective steps.  If, in Tandem's sole discretion, Alliance
Member fails to take timely and adequate corrective steps, Tandem may take them
in its own or Alliance Member's name and at Alliance Member's expense.  In such
event, Alliance Member will assign to Tandem, at Tandem's sole option, any
rights Alliance Member has against the Customer for breach of the Sublicense
Agreement and will cooperate with Tandem in any action against the Customer.

     9.4  USE AND COPYING.  Alliance Member will use the Software only to
perform its marketing and support obligations and may make one back-up copy of
each user-loadable program. Alliance Member may make only enough copies of
updates or revisions to Software required for delivery to Customers that have
executed a Sublicense Agreement.  Alliance Member will not otherwise copy the
Software and will accurately reproduce all Tandem copyright, confidentiality and
proprietary notices on each of the copies.


                                                                 Schedule TA-B-2
<PAGE>

     9.5  RECORDS.  Alliance Member will keep complete and accurate records of
each copy of the Software received from Tandem or manufactured by Alliance
Member ("Copy Records").  Copy Records will include: (a) the date when each copy
(by revision number) was created and shipped (by designated system number) to a
Customer and how it was created, (b) the name and address of the Customer
receiving the copy and (c) a copy of each executed Sublicense Agreement, by
designated system.  Upon Tandem's written request, Alliance Member will provide
Tandem with information contained in the Copy Records for any period of the
Agreement.  With reasonable notice, Tandem will have access to the Copy Records
to verify compliance with Alliance Member's obligations.
     
     9.6  MODIFICATIONS.  Alliance Member will not translate, modify, adapt,
decompile, disassemble or reverse engineer any part of the Software without
Tandem's prior written consent.  If Tandem allows Alliance Member to modify,
translate or make a "derivative work" (defined in the United States Copyright
Act of 1976, as amended) of the Software, Tandem will also grant Alliance Member
a non-exclusive, non-transferable license to use, copy and sublicense the same,
subject to the terms of this Agreement, including the limitations regarding
Software.  Subject to such license, Tandem will own any translation,
modification, adaptation or derivative work of the Software, including any
improvement to or development of the same, and all associated patents,
copyrights, or other intellectual property rights.

     9.7  FEDERAL GOVERNMENT SUBLICENSE.  If Alliance Member sublicenses the
Software to the United States Government, in addition to applicable copyright
notices Alliance Member will also place a legend on the tape or diskette label
in substantially the following form:


   "Restricted Rights Legend.

     Use, duplication or disclosure by the government is subject to
     restrictions for commercial computer software and will be deemed to be
     Restricted Rights Software under federal law."

     9.8  THIRD PARTY SOFTWARE.  Alliance Member may sublicense to Customers
certain Software which Tandem licenses from third parties.  Alliance Member will
incorporate any necessary additional terms into the Sublicense Agreement for
such third-party Software.  Tandem may provide updates to such additional terms
at any time upon written notice to Alliance Member.  Tandem may terminate
Alliance Member's right to sublicense any third party Software if the license
between Tandem and the third party is terminated or expires. 

     9.9.  USE OF SOFTWARE WITH RETURNED HARDWARE.  Tandem agrees that for
Tandem Software licensed with Hardware originally owned by an end-user Customer
and transferred from that end-user Customer to Alliance Member for use in
Alliance Member's internal business operations (such as, but not limited to, its
billing facility), Alliance Member shall not be required to pay any License Fee
for the use of the Software, provided a one-time License Fee has been paid for
such Software.  Such License use will be governed by the terms and conditions of
Schedule TA-B, Exhibit B3.  In no event shall Software be transferred from one
Designated System to another or from one Customer to another.

10.  WARRANTIES.
     
     10.1.  HARDWARE AND SOFTWARE WARRANTY.  Tandem warrants that for the
applicable published warranty period, or the period required by local statute,
when properly installed and operated (a) each item of Hardware will meet its
then-current specifications published by Tandem and (b) each item of Software
will perform as described in Tandem's then-current user documentation for the
Software.  Hardware and/or replacement parts may include remanufactured or used
parts which are warranted equivalent of new in performance and reliability.  The
warranty period will begin 30 days following the shipment date of the Product.

     10.2  EXCLUSIVE REMEDY.  CUSTOMER'S EXCLUSIVE REMEDY AND TANDEM'S SOLE
OBLIGATION AND LIABILITY FOR ANY BREACH OF WARRANTY CONTAINED IN THIS SECTION 10
WILL BE TANDEM'S FURNISHING OF STANDARD, NONENHANCED WARRANTY SERVICES DESCRIBED
IN TANDEM'S THEN-CURRENT LOCAL (A) END-USER WARRANTY SERVICE ATTACHMENT OR (B)
END-USER AGREEMENT, FOR THE PURCHASE AND/OR LICENSE OF THE PARTICULAR HARDWARE
OR SOFTWARE.  INDEMNIFICATION UNDER SECTION 9 OF SCHEDULE TA-A WILL BE ALLIANCE
MEMBER'S SOLE AND EXCLUSIVE REMEDY AGAINST TANDEM FOR BREACH OF ANY WARRANTY OF
TITLE TO THE HARDWARE. 
     
     10.3  LIMITATION.  Tandem's warranty service obligations will not apply to
any Product if adjustment, repair, or parts replacement is required because of
(a) accident, neglect, misuse, failure of electric power, failure to provide
appropriate environmental conditions, relocation of Hardware, or causes other
than ordinary use, (b) repair or alteration, or attempted repair or alteration,
of any Product by persons other than Tandem personnel, (c) failure caused by a
product for which Tandem is not responsible, (d) connection of another machine
or device to Hardware which makes warranty service impractical or which has
caused damage to such Hardware, or (e) damage or destruction caused by natural
or man-made acts or disasters.  In addition, warranty services do not include
cosmetic repairs, refurbishment, furnishing consumables, supplies or
accessories, making accessory changes, or attaching additional devices.  Tandem
will not be required to provide warranty service for any item of Hardware on
which neither the current nor the immediately preceding release of Software has
been installed.

     10.4  TANDEM DISCLAIMER.  THE WARRANTIES CONTAINED IN THIS SECTION 10 ARE
EXCLUSIVE AND ARE IN LIEU OF ALL OTHER WARRANTIES, WHETHER EXPRESS OR IMPLIED,
INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR OF FITNESS FOR
A PARTICULAR PURPOSE.  WITHOUT LIMITING THE GENERALITY OF THE FOREGOING, TANDEM
AND ITS SUPPLIERS DO NOT WARRANT THAT NETWORK PRODUCTS WILL OPERATE IN ALL
COMBINATIONS OF HARDWARE AND SOFTWARE WHICH MAY BE SELECTED FOR USE OR THAT
SOFTWARE IS ERROR-FREE.


                                                                 Schedule TA-B-3
<PAGE>

     10.5  TOOLS.  NOTWITHSTANDING ANYTHING TO THE CONTRARY IN THIS SECTION 10,
TOOLS ARE PROVIDED "AS IS" WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES OF ANY
KIND, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE.

11.  LIMITATION ON LIABILITY.  TANDEM WILL BE LIABLE FOR ACTUAL DAMAGES IN
CONTRACT OR TORT UP TO THE GREATER OF $300,000 OR THE CHARGES PAID TO TANDEM FOR
THE PRODUCT THAT IS THE SUBJECT OF THE CLAIM, AND FOR DAMAGES FOR BODILY INJURY
OR DEATH, TO THE EXTENT THAT ALL SUCH DAMAGES ARE DETERMINED BY A COURT OF FINAL
JURISDICTION TO HAVE BEEN DIRECTLY CAUSED BY TANDEM.  TANDEM WILL ALSO BE LIABLE
FOR PAYMENTS REFERRED TO IN SECTION 9 OF SCHEDULE TA-A  (INDEMNIFICATION).

12.  TERMINATION.
     
     12.1  TERMINATION OBLIGATIONS.  Alliance Member's right to sublicense the
Software will terminate upon the termination or expiration of this Schedule or
the Agreement.  At that time, Alliance Member will assign to Tandem any or all
Sublicense Agreements upon Tandem's reasonable request.

     12.2  PURCHASE OPTION.  Tandem will have the exclusive option, exercisable
upon notice to Alliance Member within 30 days after  expiration or termination
of this Schedule, to purchase all or any part of Alliance Member's stock of
Products.  During such 30-day period, Alliance Member will withhold its entire
stock of Products from sale to Customers or other parties, except for Products
needed to fulfill valid contractual commitments made before the beginning of the
option period.  Any Tandem purchases will be at the Product's Discounted Price,
less depreciation and allowances.  Alliance Member will promptly make its stock
available to Tandem for inspection and testing prior to the exercise of the
option. 

13.  MISCELLANEOUS PROVISIONS.

     13.1  AUDIT.  Alliance Member will permit Tandem to conduct periodic audits
of records regarding Alliance Member's performance, including without
limitation, records of the sale or licensing of Products.

     13.2  GEOGRAPHIC LIMITATION.  Tandem's obligations under this Schedule are
strictly limited to the Targeted Market, and in no event will Tandem be required
to ship Products to, or to provide warranty, licensing, service or support in a
country or region outside the Targeted Market, including, but not limited to,
countries where Tandem has an independent distributor.  Any Tandem sale,
licensing, service or support of Products outside of the Targeted Market but
within those countries where Tandem has a wholly-owned subsidiary is subject to
the terms and conditions, including, without limitation, price terms, of the
country agreement with the local Tandem subsidiary.

                                                                 Schedule TA-B-4
<PAGE>

                                   EXHIBIT B1

                         APPLICATION PACKAGE DESCRIPTION



1.  Name of Application Package:

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

2.  Functional Description of Application Package:

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

3.  Products on which Application Package operates:

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

4.  Additional comments or  remarks that identify Application Package:

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------


(Attach additional copies of this Exhibit B1 for other Application Packages.)




                                                                    Exhibit B1-1
<PAGE>

                                   EXHIBIT B2

                              DISCOUNTS BY PRODUCT


The following Discount Terms and conditions are applicable to all Discounts and
Products set forth below in Sections 1 through 4 of this 
Exhibit B:

     The Product Discounts granted to Alliance Member in this Exhibit B
     shall be in effect for a period of two years from the Effective Date
     of January 1, 1995 and are subject to the Holdback Provisions of
     Schedule TA-A.
     
     DETERMINATION OF PURCHASE VOLUME.  Alliance Member's Purchase Volume
     during a Period shall be the sum of the U. S. List Prices of new
     Products and the actual purchase prices of re-manufactured Hardware
     purchased during a Period, less any credit for trade-in Products
     ("Cumulative Prices").  Although Excluded Products do not receive
     Discounts, the Cumulative Prices of those Products may be included in
     determining actual Purchase Volume, but only if the trade-in or
     promotional program allows it for Excluded Products purchased under
     such programs.
     
     RENEGOTIATION OF DISCOUNT LEVEL.  Before the end of a Period, the
     parties will determine a new Discount Level for the next Period based
     on Alliance Member's actual Purchase Volume for the preceding Period. 
     If the parties extend the initial or any subsequent term of the
     Agreement, then before the extended term becomes effective they will
     determine a new Discount Level for such term based on Alliance
     Member's actual Purchase Volume for the preceding term.
     
     With 60 days prior written notice, Tandem may alter any Discount as
     part of a programmatic change to Tandem VAR discounts in the following
     situations: (i) for Products manufactured by Tandem, if Tandem reduces
     the List Price, provided that the new Discounted Price for Hardware
     will not exceed its immediately preceding Discounted Price; (ii) for
     Products acquired by Tandem from a third party, when Tandem determines
     that the alteration is necessary or appropriate.


     1.   NONSTOP KERNEL PRODUCTS

     APPLICABILITY.  This Section 1 applies to Tandem's NonStop Kernel
     family of Products listed in the Price Guide on the Effective Date. 
     It excludes (a) NonStop Kernel technology upgrades, (b) Integrity
     Products, (c) Tandem Source Company Products, (d) Tandem Telecom
     Division Products, (e) Atalla Products, and (f) Products purchased
     under special promotional and trade-in programs ("Excluded Products").
     
     DISCOUNTS.  Tandem grants the following Discounts to Alliance Member:

       CERTAIN CLX/R AND HIMALAYA PRODUCTS.  CLX/R Products currently
       identified by number G11x0 and Himalaya Products currently
       identified by numbers K11x will receive a [*] Discount.  CLX/R
       Products currently identified by product number G12x0, Himalaya
       Products currently identified by number K12x and all system
       printers will receive a [*] Discount.
       
       NETWORK PRODUCTS.  Network Products (previously Ungermann-Bass
       Products) will receive a [*] Discount.
       
       OTHER NONSTOP KERNEL PRODUCTS. 
          K2000 -  K20000 Himalaya Range:    [*] Discount
          K1000 - K10000  Himalaya Range     [*] Discount
          K2 - K200 Himalaya Range:          [*] Discount

       SOFTWARE LICENSE FEES AND CHARGES.  Only initial license fees and
       paid up fees for Non-Himalaya Range System Software and one-time
       charges for Himalaya Range System Software will receive Discounts.

     2.   INTEGRITY PRODUCTS

     APPLICABILITY.  This Section 2 applies to Tandem's Integrity family of
     Products listed in the Price Guide on the Effective Date.  It excludes
     (a) Integrity NR Workstations, other than Indigo and Indigo 2 servers,
     (b) Integrity technology upgrades, (c) NonStop Kernel Products, (d)
     Tandem Source Company Products, (e) Tandem Telecom Division Products,
     (f) Atalla Products, (g) Network Products and (h) Products purchased
     under special promotional and trade-in programs ("Excluded Products").
     
      DISCOUNTS.  Tandem grants the following Discounts to Alliance Member:

       INTEGRITY NR  AND FT SERVERS (INDIGO AND INDIGO 2 WORKSTATIONS):    
       [*] Discount
       
       OTHER INTEGRITY PRODUCTS (INDY WORKSTATIONS):   [*] Discount
       
       SOFTWARE LICENSE FEES AND CHARGES.  Only initial license fees and
       paid up fees for Integrity Software will receive Discounts.

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


                                                                    Exhibit B2-1
<PAGE>

   3.  TANDEM SOURCE COMPANY ("TSC") PRODUCTS (WORKSTATION PRODUCTS)

         DISCOUNTS.

           PRODUCT DISCOUNTS.  Tandem grants a [*] Discount to Alliance
           Member for TSC Products:

             Category C (terminals and options; personal printers and options)
             Category D (PC Connectivity Products such as LAN and WAN cards)
             Category E (PSX systems and options; NDX systems and options)

           SOFTWARE LICENSE FEES.  Only paid up fees or one time license
           fees will receive Discounts.
   
   4.  DESCRIPTION OF TARGETED MARKET
   
       GEOGRAPHIC AREA.
   
         United States of America, Canada, Mexico, Guam, and Puerto Rico.
       
       DESCRIPTION OF INDUSTRY.
   
         Alliance Member will act as a VAR for NonStop Kernel Products for
         Cable Television (CATV), Direct Broadcast Satellite (DBS),
         Television Receive Only (TVRO), Microwave Multichannel Distribution
         Systems (MMDS) and Microwave Distribution Systems (MDS).

       DATA PROCESSING NEEDS OF CUSTOMER WITHIN INDUSTRY.

         Subscriber/customer management, financial management and reporting,
         bill processing and other related MIS needs for DDP/SQL or
         Intelecable (and subsequent generation) Applications.

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                                                    Exhibit B2-2

<PAGE>


                                      EXHIBIT B3

                        MANDATORY SOFTWARE SUBLICENSING TERMS

1. GRANT [Alliance Member] hereby grants Customer a non-transferable, 
non-exclusive license, without right to sublicense, to use the software 
developed or acquired by Tandem Computers Incorporated ("Tandem") and 
delivered to Customer under this Sublicense Agreement ("Software"), 
exclusively on the Tandem computer system owned, possessed and operated by 
Customer and specified in [Alliance Member]'s invoice ("Designated 
System"). No source code or license to use source code is provided 
hereunder.  Software includes the programs delivered to Customer, all related 
documentation and any update, revision, translation, adaptation, 
modification, derivation or copy of the foregoing. Software does not include 
software delivered to Customer with a shrink-wrap license. As to such 
licenses, Customer agrees to be bound by the terms set forth therein, unless 
it notifies [Alliance Member] of any objections and returns the software 
within 10 days of receipt thereof.

2.  Customer will use the Software only in its own internal business operations.
Customer will not permit any other person to use the Software, except to enter
or retrieve information in the ordinary course of processing transactions.  If
the Designated System becomes temporarily inoperable due to natural disaster,
accident or other cause beyond Customer's control, Customer may use the Software
on another Tandem computer until the Designated System becomes operable. 
Customer may make one back-up copy of the Software upon which it will reproduce
all confidentiality and proprietary notices.  Customer will not otherwise copy,
translate, modify, adapt, decompile, disassemble or reverse engineer the
Software.

3.  OWNERSHIP.  Title to the Software and all patents, copyrights, trademarks,
mask works, circuit layout rights, design rights, trade secrets and other
proprietary rights in or related to the software are and will remain the
exclusive property of Tandem or its licensor, whether or not specifically
recognized or perfected under the laws of the country where the Software is
located. Customer will not take any action that jeopardizes such proprietary
rights nor will it acquire any right in the Software, except the limited use
rights specified herein.

4.  CONFIDENTIALITY. The Software incorporates confidential and proprietary 
information developed or acquired by Tandem.  Customer will protect the 
confidentiality of the Software and all such information with the same degree 
of care as it employs to protect its own confidential and proprietary 
information, but at least with reasonable degree of care.  Customer will not 
allow the removal or defacement of any confidentiality or proprietary notice 
placed on the Software, which notice will not constitute publication or 
otherwise impair the Software's confidential nature.  Customer will have no 
confidentiality obligation with respect to any confidential or propriety 
information incorporated within the Software which (i) was in Customer's 
lawful possession prior to receipt of the Software without any obligation to 
keep it confidential, (ii) is later lawfully obtained by Customer from a 
third party under no obligation of secrecy, (iii) is independently developed 
by Customer, (iv) is, or later becomes, available to the public through no 
act or failure to act by Customer.  Customer will not disclose the Software 
to any person, except to those of its employees, agents or consultants who 
require access for Customer's authorized use of the Software.  Before 
disclosure to such parties, Customer will require that they expressly: (i) 
recognize Tandem's or its licensor's confidential and proprietary rights in 
the Software, (ii) agree to comply with the use, ownership, confidentiality 
and export control restrictions applicable to the Software, and (iii) 
acknowledge Tandem's, its licensors and [Alliance Member]'s right to enforce 
these restrictions in each case in writing. Customer will be liable for 
non-compliance by its agents and contractors to the same extent it would be 
liable for non-compliance by its employees.

5.  NO WARRANTIES; LIMITATION ON DAMAGES. THIS SUBLICENSE AGREEMENT DOES NOT
INCLUDE ANY WARRANTIES, EXPRESS OR IMPLIED, BY OR ON BEHALF OF TANDEM OR ANY
ENTITY GRANTING TANDEM LICENSE RIGHTS TO THE SOFTWARE.  IN NO EVENT WILL
TANDEM OR ITS LICENSOR (A) BE LIABLE FOR ANY SPECIAL, PUNITIVE, MORAL,
INCIDENTAL OR CONSEQUENTIAL DAMAGES, WHETHER OR NOT FORESEEABLE, INCLUDING, BUT
NOT LIMITED TO, LOST PROFIT OR DATA OR (B) INCUR AGGREGATE LIABILITY IN ANY
ACTION OR PROCEEDING WHICH EXCEEDS THE TOTAL AMOUNT ACTUALLY PAID TO TANDEM BY
ALLIANCE MEMBER FOR THE SOFTWARE THAT DIRECTLY CAUSED THE DAMAGE.

6.  TERMINATION.  This Sublicense Agreement will automatically terminate if
Customer stops owning, possessing or operating the Designated System, and it may
be otherwise terminated with 30 days prior written notice if the Customer
violates any of its terms or conditions. Upon any such termination, all rights
granted to Customer, including but not limited to the right to use to the
Software, will immediately cease, and Customer will promptly (i) purge the
Software from the Designated System and all other computer systems and storage
media, (ii) deliver to [Alliance Member] the Software and any other item within
Customer's possession or control that contains confidential information relating
to the Software, and (iii) certify in writing that Customer has complied with
its termination obligations hereunder.  Any provision of this Sublicense
Agreement which by its sense and context deals with Software use, disclosure,
ownership, confidentiality, inspection, re-exportation, and third party
enforcement rights will survive its expiration or termination for any reason.

7. EXPORT CONTROLS.  The confidential information of Tandem, and all related 
technical documents and materials are subject to export controls under the 
U.S. Export Administration Regulations and related U.S. laws.  Customer will 
(i) comply strictly with all legal requirements established under these 
controls, (ii) cooperate fully with Tandem in any official or unofficial 
audit or inspection that relates to these controls and (iii) not export, 
re-export, divert, transfer or disclose, directly or indirectly, any 
Software, confidential information of Tandem, or related technical documents 
and materials or any direct product thereof to any country (or to any 
national or resident thereof) which the U.S. Government determines from time 
to time is a country (or end-user) to which such export, re-export, 
diversion, transfer, or disclosure is restricted, without obtaining the prior 
written authorization of Tandem and the applicable U.S. Government agency.  
If Customer is located outside the United States, see Attachment A for the 
list of export-restricted countries.

8.  ASSIGNMENT-ENFORCEMENT. Customer may not assign, delegate or otherwise
transfer the Software, this Sublicense Agreement or any of its rights or
obligations without Tandem's and [Alliance Member]'s prior approval.  Any
assignment, delegation or transfer which violates the foregoing will be void. If
[Alliance Member] ceases to be Tandem's authorized value-added reseller for any
reason, then [Alliance Member]'s rights against Customer may be assigned to
Tandem or its designee.  Customer hereby consents to any such assignment and, at
Tandem's request, will execute any instrument which may be required to perfect
the assignment.  The provisions of this Sublicense Agreement are intended to
insure to the benefit of Tandem and its licensor.  Tandem or its licensor has
the right to enforce these provisions directly against Customer, whether in
Tandem's, its licensor's or [Alliance Member]'s name, and Tandem and its
licensor accept this right.


                                                                    Exhibit B3-1

<PAGE>

                                    SCHEDULE TA-C

                      PROFESSIONAL SERVICES TERMS AND CONDITIONS

1.  DEFINITIONS.  "Order" is a written order for Professional Services by which
Alliance Member engages Tandem to furnish Professional Services (i) directly to
Alliance Member for its own internal business use, or (ii) to Alliance Member
for delivery and resale or pass-through to a Customer. "PROFESSIONAL SERVICES"
are those packaged or custom services Tandem offers to Alliance Member
including, without limitation: project management support; computer system
design, implementation and maintenance; computer programming; software analysis;
sales presentations; proposal creation or other services applicable to a
Customer's data processing and/or sales and marketing requirements.  "TOOLS"
means any computer program and associated documentation, including utilities,
developed or provided by Tandem, which are used to standardize or simplify
routines or functions, enhance productivity, or assist in the maintenance of any
Product, as more particularly identified in a Statement of Work. Tools are
provided to Alliance Member on an unsupported basis and may include metrics,
routines, diagnostics, templates or other devices.  "STATEMENT OF WORK" is the
statement attached to a particular Order describing the Professional Services to
be provided.

2.  TANDEM RESPONSIBILITIES. Upon acceptance of an Order, Tandem will perform
for Alliance Member the Professional Services specified therein using Tandem
employees, subcontractors or other agents having the appropriate background and
knowledge to perform the Professional Services.

3.  ALLIANCE MEMBER RESPONSIBILITIES.

    3.1  SUBMISSION OF ORDERS.  Alliance Member will submit to Tandem a
separate Order for each Professional Service required, which Order will become
binding upon the parties' written acceptance thereof.  Unless otherwise mutually
agreed, the terms of this schedule will supersede and will not be amended by the
preprinted terms of any Order.  Additional or different terms and conditions of
an Order will be of no force and effect.

    3.2  COMPENSATION.  Alliance Member will pay Tandem a fee for the
Professional Services, regardless of whether Professional Services will be
passed-through to a Customer or similar fees will be charged to or received from
such Customer by Alliance Member.  Tandem's standard fees for Professional
Services will apply unless otherwise agreed.  Expenses incurred by Tandem in
performing the Professional Services will also be paid by Alliance Member.  Fees
and expenses will be invoiced, and will be due and payable, according to the
terms of the Statement of Work.

    3.3  ALLIANCE MEMBER CONTACT. Alliance Member will designate an individual
to serve as the primary contact under this schedule.  Tandem personnel will
direct all inquiries and requests regarding the performance of Professional
Services to such individual.  Alliance Member will assign other personnel to
participate as specified in the Statement of Work.

    3.4  USE OF FACILITIES.  Alliance Member will permit Tandem to make
reasonable use of Alliance Member's facilities, or will arrange for Tandem to
use Customer's facilities, as the case may be, at no cost to Tandem, for the
purpose of providing the Professional Services, including use of work space,
telephone equipment, office services, electricity, water, heat, waste disposal
facilities and parking.  In addition, Alliance Member will provide, or will
arrange to have Customer provide, as the case may be, the computer system time
to enable Tandem's personnel to perform the Professional Services.

4.  SCHEDULE.  The Statement of Work will specify an estimated schedule for the
milestones, deliverables, and performance of the Professional Services.  Both
parties agree to make reasonable efforts to carry out their responsibilities in
accordance with such schedule.

5.  CHANGES TO STATEMENT OF WORK.  Either party may request a change to a
Statement of Work and will submit its change request in writing to the other
party.  Tandem will prepare a written change order which will describe the
requested change and set forth any resulting modifications to the performance
schedule, fees or other terms contained in the Statement of Work.  The change
order will become effective upon the written authorization of the parties and
will modify and take precedence over any inconsistent terms in the Statement of
Work or an earlier change order.

6.  EMPLOYEE RELATIONSHIP. All personnel furnished by Tandem to perform
Professional Services will be Tandem's employees or agents.  Under no
circumstances will such personnel be considered the employees or agents of
Alliance Member or a Customer.

7.  RIGHTS IN AND TO INTELLECTUAL PROPERTY.

    7.1  Tandem does not claim any rights to original works created or owned by
Alliance Member or Customer.  All intellectual property produced by Tandem under
this schedule which is a derivative work of an original work of Alliance Member
or Customer will be owned by Alliance Member or Customer, respectively, upon
Alliance Member's payment to Tandem of all fees, including all patent rights,
copyrights, trade secret rights and other intellectual property rights, except
to the extent such work contains any portion of a Product or an original work of
Tandem, including the Tools.  Alliance Member agrees that Tandem is not
precluded from developing and marketing products which provide the same or
similar functionality as the original works of Alliance Member or Customer,
provided that such Tandem product is not based on the products or efforts of
Alliance Member or Customer, but is created independently without the use of any
confidential information of Alliance Member or Customer.


                                                                 Schedule TA-C-1

<PAGE>

    7.2  Alliance Member does not claim any rights to original works created or
owned by Tandem.  All intellectual property produced by Tandem under this
schedule which is a derivative work of an original work of Tandem will be owned
by Tandem, including all patent rights, copyrights, trade secret rights and
other intellectual property rights, except to the extent such work contains any
portion of a product or original work of Alliance Member or Customer.  Alliance
Member recognizes and agrees that Tandem has and retains any and all know-how,
ideas, design concepts or techniques employed by Tandem in rendering
Professional Services to Alliance Member, including all proprietary rights
therein.

    7.3  ALL OTHER INTELLECTUAL PROPERTY PRODUCED BY TANDEM UNDER THIS SCHEDULE
WILL BE OWNED BY TANDEM, INCLUDING ALL PATENT RIGHTS, COPYRIGHTS, TRADE SECRET
RIGHTS AND OTHER INTELLECTUAL PROPERTY RIGHTS, UNLESS OTHERWISE EXPRESSLY AGREED
TO IN WRITING BY ALLIANCE MEMBER AND A VICE PRESIDENT OF
TANDEM FOR A SPECIFIC ORDER OR STATEMENT OF WORK.

    7.4  In the event Tandem furnishes Professional Services directly to
Alliance Member for its own internal business use, Tandem grants Alliance Member
a non-exclusive, non-transferable, perpetual, fully paid license to use, for its
own internal business use, intellectual property produced and owned by Tandem
under this schedule, excluding any Software and Tools ("Tandem Intellectual
Property").  In the event Tandem furnishes Professional Services to Alliance
Member for delivery and resale or pass-through to a Customer, Tandem grants
Alliance Member a non-exclusive, non-transferable, perpetual, fully paid license
to sublicense the Tandem Intellectual Property to Customer, for its own internal
business use.

8.  TOOLS.  Any Tools to be developed or provided by Tandem in connection with
performance of Professional Services: (i) will be identified in the applicable
Statement of Work; (ii) will be considered Software under this Agreement; and
(iii) will be furnished to Alliance Member pursuant to Tandem's standard terms
and conditions for license and sublicense of Software, except as modified
herein.

    8.1  DISCLAIMER.  THE TOOLS ARE PROVIDED "AS IS" AND ALL WARRANTIES
REGARDING SUCH TOOLS, WHETHER EXPRESS OR IMPLIED, ARISING BY ANY MEANS
WHATSOEVER, INCLUDING BUT NOT LIMITED TO, ANY WARRANTY OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE, ARE HEREBY OVERRIDDEN, EXCLUDED AND
DISCLAIMED.

    8.2  SUPPORT.  Tandem is not obligated to provide installation, support or
maintenance of the Tools, but may, in its sole discretion, provide Alliance
Member with limited support on an "as available" basis.

    8.3  AVAILABILITY OF NEW RELEASES. Tandem is under no obligation to make new
versions of Tools available to Alliance Member.  Tandem may, however, at its
discretion, make such versions available provided Alliance Member agrees to
Tandem's then current terms and conditions.

    8.4  CHANGE IN SUPPORT.  Notwithstanding the above, if Tandem chooses to
make the Tools available as a supported product, it will give Alliance Member
sixty (60) days notice and the option to continue to use the Tools on an
unsupported basis or convert to the new product and receive standard support
under Tandem's then-current terms.

9.  RESCHEDULE, CANCELLATION, OR TERMINATION OF ORDER.  A request by Alliance
Member to change the date for performance of Professional Services which is
received by Tandem less than 15 calendar days prior to the planned performance
date will be subject to a fee of 2% of the cost of the Professional Services for
each month that performance is delayed, up to a maximum of 10%.  For the
cancellation of an Order, Alliance Member will pay Tandem a cancellation fee of
10% of the cost of the Professional Services ordered.  Upon 10 days written
notice to Tandem, Alliance Member may terminate an Order after performance of
the Professional Services has begun, provided that Alliance Member pays to
Tandem any fees for Professional Services already performed and any expenses
already incurred, up to the termination date of the Order.

10. TERMINATION OF SCHEDULE. Upon termination of this schedule pursuant to
Section 2 of Schedule TA-A, Alliance Member will immediately pay to Tandem any
fees due for Professional Services already performed and any expenses already
incurred by Tandem up to the termination date.  Section 7 hereof will survive
any such termination.

11. INDEMNIFICATION.

    11.1 INDEMNIFICATION OF TANDEM. Alliance Member will indemnify Tandem
according to the terms of Section 9 of Schedule TA-A for damages which result in
any way from any allegation that the Professional Services, or any results
thereof, infringe any patent, copyright or other intellectual property right of
a third party, to the extent that such damages, liabilities and expenses result
from any methodology, specification or Statement of Work initiated or defined by
Alliance Member.

    11.2 INDEMNIFICATION OF ALLIANCE MEMBER. Tandem will indemnify Alliance
Member according to the terms of Section 9 of Schedule TA-A for damages which
result in any way from any allegation that the Professional Services, or any
results thereof, infringe any patent, copyright or other intellectual property
right of a third party, if the performance of such Professional Services was in
the sole discretion of Tandem.

    11.3 THE FOREGOING STATES THE ENTIRE LIABILITY OF A PARTY, AND THE SOLE AND
EXCLUSIVE REMEDY OF THE OTHER PARTY, FOR ANY INFRINGEMENT OF INTELLECTUAL
PROPERTY RIGHTS BY THE PROFESSIONAL SERVICES.

12. LIMITATIONS.

    12.1 EXCLUSIVE REMEDY. The provisions of Section 11 of this schedule apply
in addition to this section.  Alliance Member's sole and exclusive remedy and
Tandem's sole and exclusive, for any breach by Tandem of any of its obligations
under this


                                                                 Schedule TA-C-2

<PAGE>

schedule will be, at Tandem's sole option, either the re-performance of the
applicable Professional Services at no additional charge to Alliance Member, or
the refund to Alliance Member of the fees paid to Tandem for the applicable
Professional Services.

    12.2 LIMITATION OF DAMAGES.  Notwithstanding any other provisions of this
Agreement, in no event will Tandem's total liability for any damages in
contract, warranty, tort, product liability or any other basis which arise from
this schedule exceed the total amount paid to Tandem for the Professional
Services that directly caused the damage.

13. TANDEM DISCLAIMER.  ALL WARRANTIES REGARDING THE PROFESSIONAL SERVICES,
WHETHER EXPRESS OR IMPLIED, ARISING BY ANY MEANS WHATSOEVER, INCLUDING, BUT NOT
LIMITED TO, ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE,
ARE HEREBY OVERRIDDEN, EXCLUDED AND DISCLAIMED.


                                                                 Schedule TA-C-3

<PAGE>

                                    SCHEDULE TA-E

                         SOFTWARE HOUSE TERMS AND CONDITIONS

1.  DEFINITIONS.  "ADD-ON" is an item of Integrity Hardware or NonStop Kernel
Hardware that a Customer orders after an Initial Order of Integrity Hardware or
NonStop Kernel Hardware, whichever the case may be, for which Tandem paid a 
base
fee, provided that the same Application Package for which Customer qualified for
the base fee was the Essential Factor in the Customer's purchase of the Add-on. 
"ADD-ON PERIOD" is the twelve (12) month (or, in the event that Alliance Member
provides Tandem with a copy of its Intelecable software application product for
demonstration on the Integrity platform no later than October 15, 1995, the
eighteen (18) month) period following the shipment date of the Initial Order for
which Tandem paid a particular base fee.  "APPLICATION PACKAGE" means any of the
software application products described in Exhibit E4 developed, sold and/or
licensed by Alliance Member to Customers for use with the Products.  "ESSENTIAL
FACTOR" means any Application Package which is the primary and essential cause
of an Initial Order.  "INITIAL ORDER" means a Customer's first order of
Integrity or NonStop Kernel Hardware consisting of at least one processor
required to support an Application Package and not for the primary purpose of
replacing or upgrading existing Products. "INTEGRITY HARDWARE" means Integrity
FT, or Integrity NR servers, Hardware and "NONSTOP KERNEL HARDWARE" means
NonStop Kernel Hardware that Tandem makes generally available during the term of
this Agreement, except technology upgrades, Integrity NR workstations and all
Atalla, U-B Network Products, Tandem Source Company and Tandem Telecom Division
Products.  "REVENUE INFLUENCE" means the Hardware revenue Tandem receives on an
Initial Order or an Add-on in a transaction where an Application Package is the
Essential Factor, less all applicable shipping, insurance and installation
charges, Taxes-except net income, net worth or franchise taxes assessed on
Tandem-custom duties, discounts, rebates or trade-ins.

2.  PAYMENT OF FEES.  Alliance Member will develop and/or license, market,
maintain and support Application Packages in a manner which causes the sale of
Hardware for use with Application Packages.  If an Application Package is the
Essential Factor, subject to the Holdback Provisions of Schedule TA-A, Alliance
Member will earn (i) a base fee of 10% of the Revenue Influence for an Initial
Order of NonStop Kernel Hardware and Software for which a one time License Fee
is paid, (ii) a base fee of 6% of the Revenue Influence for an Initial Order of
Integrity Hardware and Software for which a one time License Fee is paid,. (iii)
an Add-on fee of 10% of the corresponding Revenue Influence for NonStop Kernel
Add-on purchased during the Add-on Period and (iv) an Add-on fee of 6% of the
corresponding Revenue Influence for Integrity Add-on purchased during the Add-on
Period.

3.  CONDITIONS FOR PAYMENT OF FEES.  Tandem will pay fees only if the following
conditions are satisfied: (i) Tandem determines that the Application Package
sold or licensed to the Customer was the Essential Factor in the Customer's
purchase of Hardware; (ii) Tandem approves payment of the fees (Exhibit E3);
(iii) The Customer purchases or licenses and installs and accepts both the
Hardware and the Application Package; (iv) Alliance Member is not materially in
default under this Schedule; and (v) Alliance Member submits to Tandem an
application for fees (Exhibit E2) within 120 days after the shipment of the
Initial Order.  At its option Alliance Member may identify prospective Customers
and submit a Prospect Form (Exhibit El) to Tandem for acknowledgment that
Prospect qualifies for fees hereunder.

4.  LIMITATIONS ON PAYMENT OF FEES. Tandem's obligation to pay fees is limited
as follows: (i) Alliance Member must own or have the legal right to license and
distribute the Application Package; (ii) Hardware must be shipped while this
Schedule TA-E is in effect, unless this Schedule is renewed or the parties enter
into a new written agreement within 30 days of its termination or expiration, in
which case Tandem will pay the fees under the terms of the renewed Schedule or
new agreement; (iii) Tandem must first receive payment in full for the Hardware;
(iv) Hardware must be sold directly to a Customer by Tandem; (v) Tandem may set-
off against any fee any amounts Alliance Member owes Tandem; and (vi) if Tandem
determines that the Application Package and software products of another Tandem
Alliance Partner are both Essential Factors, Tandem may apportion the fee
between Alliance Member and the Partner in any manner Tandem deems appropriate.

5.  TERMS FOR CREDIT OR PAYMENT OF FEES.  Tandem will pay fees within 45 days
after it receives payment in full for the Products (or if payment is made in
installments, after it receives each installment payment).  All fees will be
paid in United States dollars or, at Tandem's sole option, in the currency of
the country and in the country in which the Customer pays Tandem for the
Products.

6.  DESCRIPTION OF TARGETED MARKET: 
     Geographic Area: Worldwide 
     Description of Industry: Rest of Market 
     Data Processing Needs of Customer:
         Alliance Member will provide Intelecable and follow-on applications
         for subscription/customer management billing system Application
         Products on both the Tandem Integrity and NonStop Kernel Products
         (except as provided in Schedule TA-B).


                                                      Schedule TA-E, Page 1 of 1

<PAGE>

                                      EXHIBIT E1

                                    PROSPECT FORM

                         CABLEDATA/TANDEM ALLIANCE AGREEMENT

This form is intended to notify Tandem Computers Incorporated of a potential
Tandem hardware/software sale related to CableData's Intelecable-TM- Solution
applications programs.  Such a sale would entitle CableData to an Influence Fee
as described in the Tandem Alliance Agreement dated January 1, 1995.


1.  PROSPECT/CUSTOMER INFORMATION
    Name and address:


    Contact name/telephone no.:


    Tandem Customer?  YES___ NO___: Current Platform(s):

2.  AUTHORIZED PRODUCT: (HIMALAYA, INTEGRITY NR, PUMA, ETC.)
    Name:                                        Quantity:


3.  ANTICIPATED INFLUENCE FEE:__________




                                       Received and Acknowledged by
                                       Tandem Computers Incorporated

                                       By:
                                          -----------------------------------
                                                   Authorized Signature

                                       Name:
                                            ---------------------------------

                                       Date:
                                            ---------------------------------


                                                              TA-E, Exhibit E1-1
<PAGE>

                                      EXHIBIT E2

                    NOTIFICATION OF SOFTWARE HOUSE FEE ELIGIBILITY

Tandem has, within the past 120 days, completed the following sale in which
[Name of Alliance Member]'s Application Package, listed in Exhibit E3 of the
Alliance Member Agreement dated ___________________________, was necessary to
Customer's decision to purchase Products. By submitting the following facts of
the sale, we request that Tandem recognize and confirm that an influence fee is
due.

Customer Name:
              -------------------------------------------------------------

Install Location:
                 ----------------------------------------------------------

- ---------------------------------------------------------------------------

System/Add-on Number:
                     ------------------------------------------------------

Base Fee or Add-on Fee:
                       ----------------------------------------------------

Tandem Sales Representative:
                            -----------------------------------------------

Application Package:
                    -------------------------------------------------------

Date of Application Package License Agreement:
                                              -----------------------------

(Note:   To be considered complete, this application must be supported by a
copy of the signature page of the Application Package license agreement and a
copy of the Customer invoice.)

Estimated Date of Application Package Installation:
                                                   ------------------------

Estimated Date of Acceptance of Application Package:
                                                    -----------------------

Are any other Alliance Partner's products licensed to this system?
                                                                  ---------

- ---------------------------------------------------------------------------

Tandem approval, pursuant to Section 3.(ii) of Schedule TA-E, will be conducted
by the following Jurisdictional Entity in the following Tandem Divisions:

    Europe              Selling Country Manager
    Asia/Pacific        Selling Country Manager
    The Americas        Alliance Business Operations

IN THE EUROPE AND ASIA/PACIFIC DIVISIONS, SUBMIT COMPLETED FORM TO YOUR
PARTNERSHIP MANAGER.  IN THE AMERICAS DIVISION, SUBMIT COMPLETED FORM TO TAG
FEES VIA INFOWAY OR FORWARD TO YOUR PARTNERSHIP MANAGER.  COPIES OF SALES
DOCUMENTATION SHOULD ALSO BE SENT TO YOUR PARTNERSHIP MANAGER.


                                                              TA-E, Exhibit E2-1

<PAGE>

                                      EXHIBIT E3

                         SOFTWARE HOUSE FEE PAYMENT APPROVAL

                                 (TANDEM LETTERHEAD]

[Alliance Member Contact]
[Alliance Member Name]
[Alliance Member Address]

                                                 [Date]
Dear [Alliance Member Contact]:

Tandem has completed review of the Notification of Software House Fee
Eligibility submitted on [date received] involving a sale to [Customer] under
Tandem System [System/Add-on Number].

Based upon the sales documentation provided by your organization as well as
supporting information from Tandem personnel involved in the sale, I am pleased
to inform you that Tandem will acknowledge [Application Package] as an essential
factor in the sale of System [System/Add-on Number] and will approve payment of
the influence fee.

The influence fee due for this sale has been computed at [value] and is based
upon Revenue Influence, as defined in your Alliance Member Agreement.  The fee
amount is approximate pending Tandem's receipt of payment in full from
[Customer] for the Products.  You may expect payment of the fee within
forty-five (45) days after Tandem receives such payment in full.


Your Alliance contact has been apprised of the outcome of this petition and
should be your point of contact for any questions you might have.

Congratulations on the sale of your application.  Tandem eagerly anticipates
future joint successes.

Very truly yours,

[Jurisdictional Entity]
[Title]
[Alliance Division]


                                                              TA-E, Exhibit E3-1

<PAGE>

                                      EXHIBIT E4

                           APPLICATION PACKAGE DESCRIPTION


Name of Application Package:

- --------------------------------------------------------------------------------

Functional Description of Application Package:

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

Products on which Application Package operates:

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

Additional comments or remarks that identify Application Package:

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

(Attach additional copies of this Exhibit E3 for other Application Packages.)


                                                              TA-E, Exhibit E4-1

<PAGE>

                                    SCHEDULE TA-F

                                SOFTWARE SERVICE PLANS

                                  GENERAL PROVISIONS

At any time during the Warranty Period of any Licensed Product, warranty Service
can be enhanced to the level of a Service Plan at the charges indicated in
Tandem's Price Guide.  Corrective Service will be furnished via the Tandem
NonStop Support Center ("TNSC") and will include action to verify the existence
of a defect, determine the severity or impact of the defect, and determine
conditions under which the defect may recur.  During such verification, Tandem
may request further information about the defect from Alliance Member.  After
such information is provided to enable Tandem to duplicate or verify the 
defect, Tandem will, at its option:

1.  for a Critical Defect (as defined in the Agreement), commence action within
    the work-shift hours specified in the selected Service Plan using
    commercially reasonable efforts to provide a temporary solution of or
    workaround to the defect; or
2.  for a non-critical defect, commence action within the workshift hours
    specified in the selected Service Plan to provide either the action set
    forth in 1. above or a statement that the defect will be corrected in a
    future Release; or
3.  provide a statement that the Licensed Product operates as described in
    Tandem's current user documentation or that the defect arises when such
    Product is used other than in a manner for which it was designed.

Prior to contacting Tandem for corrective Service for noncritical defects,
Alliance Member is responsible for researching the Tandem database to determine
if there is an interim product modification ("IPM") that will address the
problem.

Software media.  Releases and updates to Releases, and documentation and updates
to documentation via CD are provided with each Service Plan.

SELF SUPPORT PLAN includes:
For a Critical Defect, Alliance Member may request corrective Service via
electronic mail or fax to the TNSC between the hours of 8:00 a.m. to 5:00 p.m.,
Monday through Friday, excluding national holidays.  Except for workstation
Software, Tandem will commence action within 2 work-shift hours and provide
on-site assistance when deemed necessary by Tandem.

For a non-critical defect or any defect in workstation Software, Alliance Member
may request Service via electronic mail to the TNSC between the hours of 8:00
a.m. to 5:00 p.m., Monday through Friday, excluding national holidays.  Tandem
will commence action within 4 work-shift hours or within 8 work-shift hours for
workstation Software.

Problem support on a time and expense basis is not available under the Self
Support Plan.

SUPPORT CENTER ASSISTANCE PLAN includes usage problem support through the TNSC
and:
For a Critical Defect, Alliance Member may request corrective Service via phone
or fax to the TNSC 24 hours a day, 7 days a week, excluding national holidays. 
Except for workstation Software, Tandem will generally commence action during
the initial contact and provide on-site assistance when deemed necessary by
Tandem.

For a non-critical defect or any defect in workstation Software, Alliance Member
may request Service via phone to the TNSC between the hours of 8:00 a.m. to 5:00
p.m., Monday through Friday, excluding national holidays.  Tandem will generally
commence action during the initial contact or within 4 work-shift hours for
workstation Software.

A service planning meeting will be provided at least once annually between
Tandem and Alliance Member to discuss the current Service Plans and Alliance
Member's future requirements.

MULTIPLE SYSTEMS SUPPORT OPTION (AVAILABLE ONLY IF SUPPORT CENTER ASSISTANCE
PLAN IS SELECTED) is designed for Alliance Members with more than one System. 
"Multiple System" means a System for which the Alliance Member elects to receive
support through a Primary System.  "Primary System" means each System
that is not a Multiple System. Alliance Member must identify
each Primary System and its corresponding Multiple Systems.

Multiple Systems Support will be provided under the following
conditions:

- - The Primary System must be approved by Tandem per current
  policy and supported under Support Center Assistance;

- - All Licensed Products on a Multiple System(s) must be
  licensed on the Primary System;

- - Service on a Multiple System will be furnished through the
  identified Primary System;

- - The Alliance Member will reproduce on the identified Primary
  System any Multiple System problem requiring support;

- - Alliance Member's key contact for a Primary System will be
  responsible for working all problems with Tandem;

- - Tandem will provide Releases and Release updates to a
  Primary System only, and Alliance Member will distribute
  such Releases and Release updates to) each designated Multiple
  System; and

- - Service requested directly on a Multiple System will be
  provided at Tandem's published time and expense rates.

Tandem retains the right to refuse to provide Multiple System Support in cases
where the above conditions are not met.



                            NETWORK PRODUCTS SERVICE PLANS

The Premier24, Flex12 and Base9 Hardware Service Plans for Network Products
include Support Center Assistance for Network Licensed Products as described in
the Software Service Plans above at no additional charge, except that corrective
Service will be furnished only during the hours specified in the selected
Hardware Service Plan.


                                                      Schedule TA-F, Page 1 of 2

<PAGE>

SOFTWARE SERVICE PLAN ORDER FORM                 Tandem Quote No._______________
                                          and/or Alliance Member P.O. No._______

Alliance Member agrees to obtain and Tandem agrees to provide Service for
Products at the charges indicated on the attached quotation or purchase order
under the Service Plan selected herein, in accordance with the terms and
conditions of the above Agreement and the attached Service Plans and Options.

        NOTE: NOT ALL SERVICE PLANS AND OPTIONS ARE AVAILABLE FOR ALL PRODUCTS
                                 OR AT ALL LOCATIONS.

TANDEM SYSTEM NUMBER(S): #_________ #_________ #_________ #_________ #_________

                           SOFTWARE SERVICE PLAN SELECTION:

BASIC PLANS:

                                    WARRANTY ENHANCEMENT: Yes / No (Circle One)
    ____SELF SUPPORT                SERVICE COMMENCEMENT DATE:
    ____SUPPORT CENTER ASSISTANCE        ____Date of Installation
                                         ____Date of Warranty Expiration
                                         ____Other______/______/______

OPTIONS: (available with Support Center Assistance only unless otherwise
indicated)

    MULTIPLE SYSTEM SUPPORT

                 Primary System(s): #_________ #_________ #_________

    ____HOLIDAY COVERAGE
    ____CRITICAL PROBLEM SUPPORT FOR WORKSTATION SOFTWARE (available with both
         Basic Plans)




NAME:    CABLEDATA, INC. "Alliance Member"
     ----------------------------------------------------------------------

BY:                                                      DATE:
   -------------------------------------------------          -------------

PRINT NAME:                                              TITLE:
           -----------------------------------------           ------------


                      DO NOT COMPLETE:  TANDEM INTERNAL USE ONLY

Alliance Member #__________ Discount Site/Volume ___% Minimum Term___%
Other____@____%

Service Reference #________   Primary CE or SE ____________________________


                                                      Schedule TA-F, Page 2 of 2

<PAGE>
                                    SCHEDULE TA-G


                               PRODUCT RENTAL AGREEMENT

Alliance Member hereby contracts for and TANDEM COMPUTERS INCORPORATED
("Tandem"), by its acceptance and execution hereof, agrees to rent to Alliance
Member and Alliance Member agrees to rent from Tandem, computer hardware
("Hardware") and software ("Software") (collectively "Products").  Products may
be ordered on a Rental Order Form (example attached) or on Alliance Member's
order form containing equivalent information ("Rental Order") subject to
acceptance by Tandem, for delivery and use in the United States, in accordance
with the terms and conditions of this Agreement (the "Agreement").

1. RENTAL PERIOD

The rental period will commence on the Date of Installation as defined in
Section 4 and continue for the period specified in a Rental Order unless sooner
terminated by Alliance Member upon 30 days prior written notice.  In addition,
should Alliance Member (i) fail to perform any of its obligations under this
Agreement for a period of 30 days after written notice of such failure, or (ii)
breach any of its confidentiality obligations under this Agreement, Tandem will
have the right to terminate this Agreement immediately upon delivery of written
notice to Alliance Member of its election to do so.  Tandem's rights of
termination are in addition to any other rights and remedies provided in the
Agreement or by law.

2.  TRANSPORTATION AND INVOICES

a.  All transportation to and from Alliance Member's site will be paid by
    Alliance Member and will be set forth separately on Tandem's invoice to
    Alliance Member.

b.  Rental charges, including any applicable license charges and service
    charges, will commence on the Date of Installation and will be invoiced
    monthly in advance.  Alliance Member will pay all invoices, in full, within
    30 days of the date of invoice.

3.  TITLE AND RISK OF LOSS

a.  Title to, and ownership of, the Hardware will remain with Tandem unless
    Alliance Member exercises its option to purchase under Section 8 below. 
    Tandem will bear risk of loss or damage to the Products during
    transportation and during the rental period except for loss or damage
    caused by Alliance Member.

b.  Title to, ownership of, and all proprietary rights, including patent rights,
    copyrights, trade secret rights, and other intellectual property rights, in
    each item of Software, including all copies and derivative works thereof
    are reserved to and will at all times remain the property of Tandem or its
    suppliers.

4.  INSTALLATION

a.  Unless Alliance Member requests Tandem to do so, Alliance Member will
    install Products in accordance with Tandem's published specifications.  If
    the Product is installed by Alliance Member, the 10th day following the
    shipment date for such Product will be deemed the "Date of Installation"
    for all purposes of this Agreement.

b.  If Alliance Member requests Tandem to install Products:

    1)   Alliance Member will place each Product in its desired location. 
    Products will be subject to Tandem's published installation charges, if
    any.

    2)   The first business day following the day on which Tandem installs the
    Product will be deemed the "Date of Installation" for all purposes of this
    Agreement.  Should installation not occur within 30 days of shipment
    through no fault or delay of Tandem, the 30th day following the shipment
    date will be deemed the "Date of Installation."

5.  SERVICES

a.  During the rental period, Tandem will provide Hardware and Software
    services for Products rented under this Agreement in accordance with the
    Service Plans selected by Alliance Member on a Software Service Plan Order
    Form subject to the charges set forth on a Rental Order pursuant to the
    Agreement for Maintenance Services between Tandem and Alliance Member dated
    2-15-92, as amended, and Schedule TA-F.

b.  Neither the service obligations contained in this Section 5, nor the
    warranty contained in Section 11, applies to any Product if adjustment,
    repair or parts replacement is required because of (i) accident, neglect,
    misuse, failure of electrical power, failure of Alliance Member to provide
    appropriate environmental conditions, relocation of Hardware, or causes
    other than ordinary use, (ii) Alliance Member repair or alteration, or
    attempted repair or alteration, of any item of Hardware or spare part,
    where such activity is not authorized by Tandem, (iii) Alliance Member's
    connection of any item of Hardware to another device making warranty
    service impractical or which has caused damage to such Hardware; or (iv)
    Alliance Member-supplied software or the addition of a non-Tandem product
    or interface, or (v) damage arising from natural or man-made disaster,
    vandalism or destruction caused by acts of nature

c.  Additional zone charges will apply to on site service for systems located
    more than 100 miles from a Tandem support location, and desktop and network
    products located more than 50 miles from a Tandem support location. 
    Service outside the scope of a Service Plan will be furnished at Tandem's
    then-current published rates.  Consumable items are not provided by Tandem.

6.  SOFTWARE LICENSE

a.  "Software" means a software product in object code only, user documentation
    and related materials that are furnished by Tandem under this Agreement. 
    No source code and no license to use source code is provided hereunder.

b.  Tandem hereby grants to Alliance Member a non-exclusive, nontransferable
    license, without right to sublicense, for the use of each item of Software
    on the Hardware set forth in the Rental Order for Alliance Member's
    business use only.  Except for agents or contractors who need to use such
    item of Software in the performance of their duties for Alliance Member, 
    Alliance Member will not permit any item of Software to be used by any
    other person or on any other computer system.

c.  Alliance Member will not reverse engineer, decompile or reverse compile,
    disassemble, list, print or display any Software or otherwise attempt to
    obtain the source code or other Confidential Information from any Software. 
    Alliance Member will not modify, or permit any person other than Tandem to
    modify Software or any part thereof.

d.  No Software or part thereof may be duplicated by Alliance Member except
    that Alliance Member may make one copy of any machine-readable portion
    solely for Alliance Member's normal archival or security backup purposes. 
    Alliance Member will properly reproduce on each such copy all notices of
    patent rights, copyrights, trademark rights or trade secret rights in such
    Software or any part thereof.

e.  Use of certain Software Products may be limited to a maximum number of
    users.


                                                       Schedule TA-G PAGE 1 OF 4

<PAGE>


f.  Upon expiration of any rental period including any extensions thereof or
    upon the termination of this Agreement or of any license granted hereunder
    for any reason other than Alliance Member's exercise of its purchase option
    contained in Section 8 hereof, all rights of Alliance Member to use the
    Products listed in the Rental Order will cease and Alliance Member will
    immediately (i) grant access to the Products to Tandem to remove the
    Products, (ii) purge all copies of all Software from all computer
    processors or storage media on which Alliance Member has installed or
    permitted others to install such Software, and (iii) when requested by
    Tandem, certify to Tandem in writing, signed by an officer of Alliance
    Member, that all copies of the Software have been returned to Tandem or
    destroyed and that no copy of any Software remains in Alliance Member's
    possession or under its control.

g.  The terms of any shrink-wrap license included with Software ordered
    hereunder will supersede and take precedence over the terms of this 
    section 6.

7.  CONFIDENTIALITY

a.  "Confidential Information" means the confidential and proprietary data or
    information developed or acquired by either party and marked or clearly
    designated in writing.

b.  The receiving party will keep all Confidential Information in confidence
    and will not disclose any item of Confidential Information to any person
    other than its employees, agents or contractors who need to know the same
    in the performance of their duties.  The receiving party will protect and
    maintain the confidentiality of all Confidential Information with the same
    degree of care as it employs to protect its own Confidential Information,
    but at least with a reasonable degree of care including requiring agents
    and contractors to sign a nondisclosure agreement.  The receiving party
    will be liable to the disclosing party for any non-compliance by its agents
    or contractors to the same extent it would be liable for noncompliance by
    its employees.

c.  Alliance Member recognizes that each item of Software (i) is considered by
    Tandem to be a trade secret, (ii) is furnished by Tandem to Alliance Member
    in confidence, and (iii) contains proprietary and Confidential Information,
    and that, accordingly, such Software constitutes Confidential Information
    under this Section.

d.  Confidential Information does not include any data or information which (i)
    was in the receiving party's lawful possession prior to the submission
    thereof by the disclosing party, (ii) is later lawfully obtained by the
    receiving party from a third party under no obligation of secrecy, (iii) is
    independently developed by the receiving party, or (iv) is, or later
    becomes, available to the public through no act or failure to act by the
    receiving party.


8.  OPTION TO PURCHASE

a.  Alliance Member may, at any time, purchase any item of Hardware or
    re-license the Software specified in a Rental Order by entering into
    Tandem's then current purchase and/or license agreement and placing an
    order thereunder with respect to such Products.  The effective date of
    purchase/license will be the date Tandem issues the invoice for such
    Products.  In such event:

    1)   Upon the effective date of purchase, title to each item of Hardware so
    purchased will pass to Alliance Member.

    2)   Software may be re-licensed under any license term and fee option
    available for that Software.

    3)   The item will be deleted from this Agreement and rental charges for
    such item will cease.

    4)   The effective date of purchase/license will be the date of warranty
    commencement, if applicable, for each Product.

b.  Tandem will grant a credit based on the total rental charges paid for an
    item of Hardware during the rental period toward the applicable purchase
    price for that item.  Credits will be equal to 100% of rental charges paid
    for Hardware purchased during the first 3 months of the rental period and
    50% of rental charges paid for Hardware purchased during months 4 through 6
    of the rental period.

9. ALTERATIONS

Alliance Member agrees not to employ or use any additional attachment, feature
or device on the Hardware listed in a Rental Order without the written consent
of Tandem.  Alliance Member will remove any such attachment or alteration
immediately upon termination of rental.  After the rental termination date,
Tandem will restore the Hardware to its original configuration (ordinary wear
and tear excluded) and Alliance Member agrees to pay the cost of restoration. 
Alliance Member may not relocate the Products without Tandem's prior written
consent

10. WARRANTY; EXCLUSIVE REMEDY

a.  Tandem warrants to Alliance Member that the Products listed in a Rental
    Order, when properly installed, will meet the specifications published by
    Tandem for such Products on the Date of Installation.

b.  THE WARRANTY CONTAINED IN SECTION 10.a. IS EXCLUSIVE AND IS IN LIEU OF ALL
    OTHER WARRANTIES, WHETHER EXPRESS OR IMPLIED INCLUDING, WITHOUT LIMITATION,
    ANY WARRANTY OF MERCHANTABILITY OR OF FITNESS FOR A PARTICULAR PURPOSE. 
    TANDEM AND ITS SUPPLIERS DO NOT WARRANT THAT THE LICENSED PRODUCTS ARE
    ERROR-FREE OR THAT THEIR USE WILL BE UNINTERRUPTED.

c.  Alliance Member's exclusive remedy, and Tandem's sole obligations and
    liability, for any breach of the warranty contained in Section 10.a. will
    be Tandem's furnishing the services provided in Section 5 hereof.

11. LIMITATION OF LIABILITY

a.  Tandem will be liable for actual damages in contract or tort under this
    Agreement up to the greater of $10,000 or the charges paid to Tandem for
    the Product that is the subject of the claim, and for damages for bodily
    injury or death, to the extent that all such damages are determined by a
    court of final jurisdiction to have been directly caused by Tandem.

b   THE REMEDIES IN THIS AGREEMENT ARE CUSTOMER'S SOLE AND EXCLUSIVE REMEDIES. 
    IN NO EVENT WILL TANDEM OR ITS SUPPLIERS BE LIABLE TO CUSTOMER FOR SPECIAL,
    INCIDENTAL OR CONSEQUENTIAL DAMAGES INCLUDING LOST PROFIT OR DATA.

12. ASSIGNMENT

Neither party may assign this Agreement or any of its rights or obligations
without prior written consent from the other party.

13. SURVIVAL

The terms and limitations, exclusions, and warranties contained in this
Agreement that by their sense and context are intended to survive the
performance thereof by either or both parties hereunder shall so survive the
completion of performance and termination of this Agreement, including without
limitation the confidentiality provisions and the making of any and all payments
due hereunder.


                                                       Schedule TA-G Page 2 of 4

<PAGE>

14. ENTIRE AGREEMENT; GOVERNING LAW;
    MISCELLANEOUS

a.  This Agreement is the parties' entire agreement relating to the Products
    furnished hereunder.  It supersedes all prior proposals and representations
    with respect to its subject matter and prevails over any conflicting or
    additional terms of any quote, order, acknowledgment or similar
    communications between the parties.

b.  This Agreement will be governed by and interpreted in accordance with the
    laws of the State of California, excluding conflict of law rules and
    principles.



ALLIANCE MEMBER HAS READ THIS RENTAL AGREEMENT AND AGREES TO BE BOUND THEREBY.



Agreed to:                             Accepted by:

CABLEDATA, INC "Alliance Member"       TANDEM COMPUTERS INCORPORATED



By                                     By
       ----------------------------           -------------------------------

       ----------------------------           -------------------------------
               (Print Name)                           (Print Name)

Title                                  Title
       ----------------------------           -------------------------------

Date                                        Effective Date
       ----------------------------                     ----------------------


                                                      Schedule TA-G, Page 3 of 4

<PAGE>


                                                           Agreement No.________
RENTAL ORDER FORM                           Tandem Quote No.____________________

                                     and/or Alliance Member P.O. No.____________

Alliance Member agrees to rent the Products described in this Rental Order Form
in accordance with the terms and conditions of the above Agreement.

RENTAL PERIOD: __________months

HARDWARE LIST:

    Product #                Description                  Monthly Rent
     ---------                -----------                  ------------



SOFTWARE LIST:

    Product #                Description                  Monthly Rent
     ---------                -----------                  ------------



              SERVICE CHARGES: (Attach Software Service Plan Order Form
                           with selected plans and options)

             Hardware Basic Monthly Maintenance Charge (BMMC): $________

                  Software Monthly Service Charge (MSC): $_________

                               MONTHLY TOTAL: $________


In the event further rental of the products listed herein are desired beyond the
expiration of the rental period, Alliance Member will be invoiced an amount
equal to Tandem's then current standard published price for the additional
rental.



CABLEDATA, INC "Alliance Member"


By                                     Title
  ---------------------------------         ---------------------------------

- -----------------------------------    Date
(Printed Name)                              --------------------------------


                                                      Schedule TA-G, Page 4 of 4


<PAGE>


                                                                   EXHIBIT 10.33

<PAGE>

                                       CONTRACT
                                         FOR
                                  COMPUTER SOFTWARE

                        POSTALSOFT SOFTWARE LICENSE AGREEMENT

This Contract Agreement is entered into effective the 13TH day of FEBRUARY, 
1996, by and between INTERNATIONAL BILLING SERVICES, INC., with offices at 5220
ROBERT J. MATTHEWS PARKWAY, EL DORADO HILLS, CALIFORNIA 95762, hereinafter 
referred to as "Customer," and Postalsoft, Inc., a Wisconsin corporation engaged
in the business of distributing computer hardware and software with principal 
offices at 4439 MORMON COULEE RD., LA CROSSE, WISCONSIN 54601-6245, hereinafter
referred to as "POSTALSOFT." In consideration of the payments, agreements, 
covenants, and mutual undertakings hereinafter set forth, the parties agree as 
follows:


This Agreement consists of this document together with the following
attachments, which are incorporated herein by reference:


    ATTACHMENT A: Designated Postalsoft Software Schedule
    ATTACHMENT B: Designated Performance Schedule
    ATTACHMENT C: Designated Extended Service Program (ESP) Schedule

POSTALSOFT and CUSTOMER agree that the terms set out below will apply to any
CUSTOMER order for POSTALSOFT Licensed Software.  Under these terms and
conditions Postalsoft will furnish such Licensed Software to CUSTOMER, and grant
to CUSTOMER a perpetual, nontransferable and nonexclusive limited license of the
software for the Territory known as the United States of America, subject to the
terms set forth below.


For the purpose of simplifying the ordering procedure under this Agreement,
CUSTOMER and POSTALSOFT may amend this Agreement to allow future additional
Licensed Software to become subject to this Agreement when a written POSTALSOFT
PRODUCT ADDENDUM is signed by Customer and accepted by POSTALSOFT.


THE CUSTOMER ACKNOWLEDGES THAT IT HAS READ THIS AGREEMENT INCLUDING THE TERMS
SET FORTH BELOW, UNDERSTANDS IT, AND AGREES TO BE BOUND BY ITS TERMS AND
CONDITIONS.  FURTHER, CUSTOMER AGREES THAT THIS AGREEMENT IS THE COMPLETE AND
EXCLUSIVE STATEMENT OF THE AGREEMENT BETWEEN THE PARTIES, WHICH SUPERSEDES ALL
PROPOSALS, CONCURRENT OR PRIOR AGREEMENTS, ORAL OR WRITTEN, AND ALL OTHER
COMMUNICATIONS BETWEEN THE PARTIES RELATING TO THE SUBJECT MATTER OF THIS
AGREEMENT.

GENERAL PROVISIONS

A.  DEFINITIONS

1.  LICENSED SOFTWARE.  For purposes of this Agreement, "Licensed Software"
    shall mean licensed data processing programs consisting of a series of
    computer instructions or statements and any related licensed materials,
    such as data base files and operating instructions, which programs and
    materials are listed in ATTACHMENT A and the POSTALSOFT PRODUCT ADDENDUM.

                                          1

<PAGE>


2.  ESP.  For purposes of this Agreement, "ESP", shall mean Extended Service
    Program comprising changes or corrections to Licensed Software to make the
    Licensed Software perform the functions described in the User Manuals, or
    to otherwise correct errors contained in Licensed Software.

B.  LICENSE TERMS AND RESTRICTIONS

1.  Each license granted under this Agreement authorizes the CUSTOMER to:

    a.   use the Licensed Software only at a specific installation site and on
         a specific computer as designated in ATTACHMENT A and/or the
         POSTALSOFT PRODUCT ADDENDUM and

    b.   utilize operating instructions and User Manuals in support of the use
         of the Licensed Software, and

    c.   make one (1) copy of the Licensed Software in machine-readable form
         solely for backup purposes.  Additional copying of Licensed Software
         is unauthorized.

2.  Licensed Software documentation, including User Manuals and instructions in
    printed form, may not be copied.  Additional copies of printed materials
    may be obtained under license from POSTALSOFT at the charges then in
    effect.

3.  The CUSTOMER is authorized to transfer any license to and use the Licensed
    Software on a backup machine, installation or location designated in
    ATTACHMENT A and/or the POSTALSOFT PRODUCT ADDENDUM, if the designated site
    is temporarily inoperable or unusable and POSTALSOFT is immediately
    notified of such use in writing, but in no event shall such temporary
    period exceed ninety (90) days.

4.  This License does not include the right to sublicense, transfer, or assign
    the Licensed Software without the prior written consent of POSTALSOFT and
    any such attempted sublicense, transfer, or assignment is unauthorized.

5.  The Customer agrees not to remove or obscure Postalsoft's property rights
    notices, or alter, decompile or disassemble the programs supplied in object
    code form.

C.  CUSTOMER RIGHTS AND OBLIGATIONS

1.  INSTALLATION AND ACCEPTANCE.  Installation of the Licensed Software can be
    performed by POSTALSOFT or CUSTOMER.  Installation responsibility is
    designated in the CONTRACT FOR INSTALLATION AND TRAINING.  The Licensed
    Software shall be deemed accepted once the Licensed Software performs the
    functions described in the User Manual.

2.  ESP.  CUSTOMER shall purchase the Extended Service Program (ESP) for the
    Licensed Software as set forth in ATTACHMENT C. Following the initial ESP
    period, CUSTOMER shall have the option to renew for successive twelve (12)
    month periods.  POSTALSOFT shall notify the CUSTOMER thirty (30) days or
    more prior to the end of each ESP period.  Subject to the provisions of
    Section E.2. hereof, under no circumstances shall CUSTOMER cancel or
    terminate the ESP midterm and shall only terminate for the successive
    period by nonrenewal.

3.  CONFIDENTIALITY.  The performance of this Agreement may provide each party
    with confidential information concerning the other party's business or
    business practices.  Both parties agree to hold all such information in
    strict confidence and not to disclose or divulge same to any third party
    for any reason whatsoever without the prior written consent of the

                                          2

<PAGE>

    other party.  Such confidential material and information must be designated
    in writing at the time of disclosure.

4.  INVOICING AND PAYMENT.  Invoices shall be issued by POSTALSOFT upon
    delivery of the Licensed Software and sixty (60) days prior to the renewal
    of any ESP service.  Such invoices shall be due and payable within thirty
    (30) days for the Licensed Software and ESP service.  Invoices not paid
    within such thirty (30) days will have a one (1) percent per month interest
    charge, or the maximum interest allowed by law if less, assessed against
    the unpaid balance.

D.  PROPRIETARY RIGHTS OF POSTALSOFT

1.  PROPRIETARY RIGHTS.  The Licensed Software and all programs developed
    hereunder and all copies thereof are proprietary to POSTALSOFT and title
    thereto remains in POSTALSOFT.  All applicable rights to patents,
    copyrights, and trade secrets in the Licensed Software or any modifications
    or derivative works made at CUSTOMER'S request are and shall remain in
    POSTALSOFT.  CUSTOMER shall not sell, transfer, publish, disclose, display,
    or otherwise make available the Licensed Software or copies thereof to
    others without Postalsoft's prior written consent.  CUSTOMER agrees to
    secure and protect each module, software product, documentation, and copies
    thereof in a manner consistent with the maintenance of Postalsoft's rights
    therein and to take appropriate action by instruction or agreement with its
    employees or consultants who are permitted access to each program or
    software product to satisfy its obligations hereunder.  All copies made by
    the CUSTOMER of the Licensed Software and other programs developed
    hereunder, including translations, compilations, partial copies with
    modifications, and updated works, are the property of POSTALSOFT. 
    Violation of any provision of this paragraph shall be the basis for
    immediate termination of this License Agreement.

    CUSTOMER, in recognition of the fact that the Licensed Software contains
    highly confidential and proprietary POSTALSOFT information and that
    POSTALSOFT will be irreparably damaged if the security of the Licensed
    Software is breached, agrees that POSTALSOFT is entitled to injunctive
    relief and damages as may be determined by a court of competent
    jurisdiction.

2.  TERMINATION AND SURVIVAL BEYOND TERMINATION.  The terms and provisions
    contained in this Section D shall survive the termination of this Agreement
    or any license hereunder.  Upon any termination of a license hereunder,
    CUSTOMER shall return the Licensed Software and delete all copies thereof
    from its libraries.  At POSTALSOFT'S request, CUSTOMER shall certify in
    writing, in a form acceptable to POSTALSOFT, that it has complied with its
    obligations under this Section D.

E.  LIMITED WARRANTY AND LIABILITY

1.  LIMITED WARRANTY

    a.   POSTALSOFT warrants, that for a period of ninety (90) days from
         acceptance , not to exceed one hundred twenty (120) days from
         installation of any Licensed Software as provided in Section C. 1
         hereof, such Licensed Software, when properly installed, will perform
         the functions described in its User Manuals subject to the
         understanding that the Licensed Software and information in any
         database will become dated if CUSTOMER fails to subscribe to ESP, and
         accordingly, all warranties and obligations of POSTALSOFT shall
         terminate with any ESP termination.

         After ninety (90) days from the acceptance date, error corrections
         made to the Licensed Software will only be made available as a service
         of the Extended Service Program.

         Notwithstanding the foregoing, as enhanced versions of the Licensed
         Software are released to current ESP CUSTOMERS, POSTALSOFT'S
         obligations to correct problems in the

                                          3

<PAGE>

         Licensed Software shall only apply to the most recent version of same. 
         POSTALSOFT shall not be obligated to correct any error in an old
         version of the Licensed Software if the error has been corrected in a
         newer version, notwithstanding that the CUSTOMER may not have received
         such newer version by reason of its failure to have elected to receive
         ESP hereunder.

    b.   POSTALSOFT further warrants its rights to enter into this Agreement
         and/or the right to grant this License and agrees to defend or settle,
         at its expense, any action at law against CUSTOMER arising from a
         claim that any Licensed Software infringes any intellectual property
         right, or at POSTALSOFT'S option, it may terminate this License and
         refund the license fee paid, proratably, based upon a thirty-six (36)
         month useful life of the Licensed Software subject to CUSTOMER'S
         obligation under Section D.2 hereof.

    c.   POSTALSOFT MAKES NO FURTHER WARRANTY AND DISCLAIMS ANY AND ALL OTHER
         WARRANTIES OF ANY KIND OR NATURE WHETHER WRITTEN OR VERBAL, INCLUDING,
         BUT NOT LIMITED TO, WARRANTIES OF RESULTS, PERFORMANCE,
         MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, RESOURCE
         UTILIZATION, RESPONSE TIME, OR SYSTEM OVERHEAD.

2.  LIMITED LIABILITY.  POSTALSOFT'S entire liability and CUSTOMER'S exclusive
    remedy shall be as follows:

    a.   In situations involving performance or nonperformance of Licensed
         Software furnished under this Agreement, CUSTOMER'S sole remedy is
         replacement or correction of the Licensed Software by POSTALSOFT so
         that it will perform the functions as described in the User Manuals. 
         In the event POSTALSOFT is unable to correct the deficiency within a
         reasonable period of time, which in no event shall be less than sixty
         (60) days, POSTALSOFT'S liability shall be limited to:

         (1)  a refund of the license fee paid by CUSTOMER to POSTALSOFT for
              the specific Licensed Software in question, provided the claim of
              nonperformance is made by CUSTOMER and received by POSTALSOFT
              within the ninety (90) day warranty period as set forth in
              Section E. 1. a. hereof, or

         (2)  a refund of the unused, prepaid, prorata ESP fee, if the claim is
              received after the expiration of the ninety (90) day warranty
              period.  All claims made by CUSTOMER hereunder must be in writing.

    b.   In no event shall POSTALSOFT be liable for any lost profits, or other
         special consequential or punitive damages, even if POSTALSOFT has
         been advised of the possibility of such damages, or for any claim
         against CUSTOMER by any other party, except with regard to an action
         for infringement of intellectual property rights.

3.  MODIFICATION TO SOFTWARE.  In the event CUSTOMER changes or modifies the
    Licensed Software in any manner, all warranties given hereunder are
    canceled and same shall release POSTALSOFT of any further obligation or
    liability.

F.  DEFAULT

    In the event CUSTOMER fails to make any payment within thirty (30) days of
    the due date or breaches any other material covenant contained in this
    Software License Agreement or any Addendum or Supplement hereto, the
    license granted hereunder shall immediately terminate and CUSTOMER shall
    return the Licensed Software and delete all copies thereof from its
    libraries.  In addition, CUSTOMER agrees to pay all costs, including
    reasonable attorneys fees, incurred by POSTALSOFT as a result of any such
    default, including costs of collection.

                                          4

<PAGE>

G.  INDEMNIFICATION

1.  CUSTOMER shall indemnify and hold POSTALSOFT harmless from any costs,
    expenses, or liability resulting from any claim based on CUSTOMER'S use or
    possession of the licensed program, excluding claims based upon
    POSTALSOFT'S negligence or patent, copyright, or similar infringement of
    third-party rights.  Such indemnity will survive the termination or
    expiration of this Agreement.

2.  If any action is instituted against CUSTOMER based upon a claim that the
    Licensed Software or any component or use thereof infringes a U.S. patent
    or copyright, POSTALSOFT shall, for and on behalf of CUSTOMER, defend and
    indemnify such action at POSTALSOFT'S expense, provided CUSTOMER has
    promptly notified POSTALSOFT in writing of such action and POSTALSOFT has
    sole control of the defense and any settlement negotiations.  POSTALSOFT
    shall have no liability if the action arises out of any modifications to
    the Licensed Software without the express written permission of POSTALSOFT;
    or any use of the Licensed Software in combination with any other system,
    equipment or software not furnished by POSTALSOFT or approved by POSTALSOFT
    in writing.

    Notwithstanding the foregoing, if a claim of such infringement is made and
    appears likely to result in the entry of an injunction against the use of
    the Licensed Products or portions thereof, POSTALSOFT may choose to do any
    of the following: (a) modify the Licensed Product so that it is not
    infringing, (b) obtain the right for the CUSTOMER to continue to use the
    Licensed Products, (c) substitute non-infringing software which provides
    substantially comparable functions, or (d) terminate this License Agreement
    and return all License Fees paid by CUSTOMER on a pro-rata basis based on a
    three (3) year useful life of the Licensed Products.

H.  ASSIGNMENT OR TRANSFER

    Neither this Agreement nor any rights or obligations hereunder shall be
    assigned or otherwise transferred by CUSTOMER without the prior written
    consent of POSTALSOFT.

I.  MISCELLANEOUS

1.  AMENDMENTS AND NOTICES.  All Amendments, Addendums and Supplements to this
    Agreement shall be in writing and signed by both parties.  In no event
    shall terms contained in any related purchase order or invoice be made a
    part of this Agreement.  All notices and claims shall be made only in
    writing and shall be deemed made upon receipt.  Any nonwritten notice or
    claim shall be of no effect.

2.  NOT BINDING UNTIL ACCEPTED.  This Agreement and all Supplements thereto
    shall not be binding until it is signed and accepted by POSTALSOFT at its
    headquarters in the State of Wisconsin.

3.  FORCE MAJORA.  Neither party shall be responsible for failure to perform
    caused by reason of any act of God, labor dispute, nondelivery by supplier,
    fire, flood, legal action, governmental order or regulation, or any other
    causes beyond its control.

4.  CAPTIONS AND HEADINGS.  All captions, headings, and titles contained in this
    Agreement are for convenience and reference purposes only and shall not be
    deemed a part of this Agreement.

5.  PARTIAL INVALIDITY.  If any part of this Agreement, or the application
    thereof, is for any reason held or otherwise found to be unenforceable, it
    shall be deemed severable and the

                                          5

<PAGE>

    validity of the remainder of this Agreement or the application of such
    provisions to other circumstances shall not be affected thereby.

6.  TAXES.  CUSTOMER shall, in addition to the other amounts payable under this
    License Agreement pay all sales and other taxes, federal, state, or
    otherwise, however designated, which are levied or imposed by reason of
    transactions contemplated by this License Agreement.  Without limiting the
    foregoing, CUSTOMER shall promptly pay to POSTALSOFT an amount equal to any
    such item actually paid, or required to be collected or paid by POSTALSOFT.

7.  GOVERNMENT LAW AND JURISDICTION.  This Agreement shall be governed and
    enforced under the laws of the State of Wisconsin.  Any paragraph, 
    subparagraph, sentence or phrase of this Agreement that is contrary to the
    laws of the State of Wisconsin and/or unenforceable shall not affect the
    validity or enforceability of any other paragraph, subparagraph, sentence,
    or phrase of this Agreement, and shall be modified or deleted to conform
    with the applicable laws of the State of Wisconsin.

8.  BENEFIT.  This Agreement shall be binding upon and inure to the benefit of
    POSTALSOFT'S successors and assigns.

9.  U.S. GOVERNMENT RESTRICTED RIGHTS.  The software and documentation are
    provided with RESTRICTED RIGHTS.  Use, duplication or disclosure by the
    Government is subject to restrictions as set forth in subparagraph
    (c)(1)(ii) of the Rights In Technical Data and Computer Software clause at
    DFARS 252.227-7018 or subparagraphs (c)(1) and (2) of the Commercial
    Computer Software-Restricted Rights at 48 CFR 52-227 as applicable.
    Manufacturer is POSTALSOFT, Inc.  4439 Mormon Coulee Rd., La Crosse,
    Wisconsin 54601-8231.

IN WITNESS WHEREOF, the CUSTOMER aud POSTALSOFT have executed this Agreement
effective as of the date established on Page 1.

ATTEST:       POSTALSOFT, INC.

              BY:
                  ---------------------------
              TITLE: CONTRACTS MANAGER
                     ------------------------
              DATE: 2/14/96
                    -------------------------

ATTEST:       Customer


              BY: 
                  ---------------------------------
              TITLE: SR. V.P., Systems & Technology
                     ------------------------------
              DATE: 2/26/96
                    -------------------------------

                                          6

<PAGE>

                                     ATTACHMENT A

                  LIMITED VOLUME LICENSE - 1 BILLION RECORD CEILING

QTY                DESCRIPTION                        PRICE

1                  PW ACE Canada Library              [*]

1                  PW Presort Plus 4x                 [*]

1                  PW 1st Cl PST Plus 4x              [*]

1                  Piece Variable Size & Dimension    [*]


TOTAL SOFTWARE COSTS                                  [*]

The above licensed PostWare will be used in the following Operating
System Environment:

REGS

utilizing the following Central Processing Unit:

SILICON GRAPHICS INC.

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

<PAGE>

                                     ATTACHMENT B

                           DESIGNATED PERFORMANCE SCHEDULE

MILESTONE                                   APPROXIMATE DAYS FROM
                                            CONTRACT SIGNING

Place Order for Software                    On Execution

Test and Install Software                   On Execution

Software Invoiced to CUSTOMER               On Execution

Invoices shall be issued by POSTALSOFT upon delivery of the Licensed Software
and sixty (60) days prior to the renewal of any ESP service.  Such invoices
shall be due and payable within thirty (30) days and thirty (30) days for the
Licensed Software and ESP service, respectively.

<PAGE>

                                     ATTACHMENT C

                  DESIGNATED EXTENDED SERVICE PROGRAM (ESP) SCHEDULE

QTY                     DESCRIPTION                        PRICE

3 yr                    PW ACE Canada Library              [*]

3 yr                    PW Presort Plus 4x                 [*]

3 yr                    PW 1st Cl PST Plus 4x              [*]

3 yr                    Piece Variable Size & Dimension    [*]

3 yr                    Canadian Directory                 [*]

TOTAL ESP COSTS                                            [*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


<PAGE>

                                                                   EXHIBIT 10.42


<PAGE>

                          ALTERNATE MAILING SYSTEM AGREEMENT

                                       BETWEEN 

                                         THE 

                             UNITED STATES POSTAL SERVICE

                                         AND

                         INTERNATIONAL BILLING SERVICES, INC.
                            5220 ROBERT J MATHEWS PARKWAY
                            EL DORADO HILLS, CA 95762-5712

                                   Bulk Third-Class

PURPOSE:

This service agreement, and any attachments, set forth the terms and conditions
for International Billing Services, Inc. of El Dorado Hills, California for use
of an Alternate Mailing System Agreement (AMS) as described and authorized by
the United States Postal Service in accordance with Domestic Mail Manual (DMM)
P730.  If there is any difference between this agreement and the mailing
standards in the Domestic Mail Manual, the postal standards in the DMM will
govern.  An Alternate Mailing System Agreement provides for other methods of
accepting permit imprint mail, not established in Domestic Mail Manual P710 or
P720, that show proper postage payment and mail preparation without verification
by weight.

CONDITIONS:

The conditions of authorization for Alternate Mailing System Agreements (DMM
P730.2.2) are:

- -   Authorization to use AMS must benefit the USPS

- -   Authorization to use AMS must include a signed agreement

- -   An AMS agreement must specify the terms and conditions of the AMS

- -   All postage must be paid by permit imprint unless otherwise permitted in
    writing by the RCSC

- -   There must be no additional costs to the USPS for an AMS agreement beyond
    the costs of current mail acceptance procedures for the mail in question

- -   The mailer must implement a quality control program that ensures proper
    mail preparation and accurate documentation, subject to USPS approval. 
    The service agreement must include details of this program that ensure 
    proper mail preparation and accurate documentation, subject to USPS 
    approval. The service agreement must include details of this program.  
    Each AMS mailing must include a statement from the mailer certifying that
    the approved quality control verification is done.

- -   Authorization must not exceed 2 years.


                                       - 1 -
                                          
<PAGE>

ARTICLE 1:

This Alternate Mailing System Agreement is for third-class Bulk Rate
nonidentical weight permit imprint mailings for The Sacramento Bee for which the
documentation and maintenance of records as outlined in Article 9 are maintained
by the mailer.  This agreement is for specific mailings at the mailer's plant
(known as: IBS II) located in:

                               Sacramento, California
                                          
The mailer may request other AMS agreements for additional mailer plant
locations by submitting a written request to the postmaster at the office of
mailing.  The request must include a complete description of the types of
matter to be mailed; the proposed method of paying postage; the proposed method
to determine correct mail preparation; and a statement of the reasons for
requesting the alternate mailing system.  The USPS may review the mailer's
operation before ruling on the application.

ARTICLE 2:

Mailings under this agreement are limited to third-class Bulk Rate mail for The
Sacramento Bee.  Mailings will be prepared as required by the applicable mailing
standards in the Domestic Mail Manual.

Specific primary and secondary documents are listed for use with this system. 
The mailings will be produced at the IBS II plant in Sacramento, California.

ARTICLE 3:

The Postmaster or designee, Rancho Cordova, California will verify mailings at
the mailer's Sacramento, California plant.  All mailings verified under this
agreement at the mailer's Sacramento, California plant will have funds withdrawn
from permit imprint account number 300 held with the Postmaster, Rancho Cordova,
California.

ARTICLE 4:

Mailer's Responsibilities:

1.  International Billing Services, Inc. is responsible for complying with all
    postal laws and regulations which may apply to the mailings including the
    proper classification of materials as set forth in the DMM.  Mailings must
    be prepared and presented to the Postal Service in accordance with this
    agreement.

    International Billing Services, Inc., will tender mail prepared in
    accordance with this Agreement only at entry points specifically approved
    in advance by the Postal Service.  The mailer's plant in Sacramento,
    California will be the entry point for all mail entered under this
    Agreement.


                                       - 2 -
                                          
<PAGE>

2.  International Billing Services, Inc., will provide unrestricted access to
    mail preparation areas for employees of the Postal Service to observe mail
    preparation and to verify mailing records.

3.  At the time mail is presented for acceptance and/or released by the Postal
    Service, the mailer must be able to provide:

- -   Primary Documents as described in Article 9
- -   "Postal Accumulated Manifest Report" for each rate category
- -   Consolidated Register of Mailing Statement (Business Day 3800 Summary with
    Grand Totals)
- -   Coding Accuracy Support System Report (PS Form 3553) or computer-generated
    facsimile (DMM A950.5.2) for automation rate mailings
- -   Carrier-Route Listings for Carrier-Route mailings
- -   Any other documentation required by the Domestic Mail Manual for rate
    eligibility.

ARTICLE 5:

International Billing Services, Inc., must maintain sufficient funds in an
advance deposit account at the Rancho Cordova, California Post Office for any
mailings entered and released by the United States Postal Service. (DMM P040.5.6
Prepayment)

ARTICLE 6:

The mailer will document and/or process damaged or withdrawn mailpieces as
outlined in Attachment "A" (Mailer's Quality Control Procedures).

The mailer will adhere to all quality control procedures and documentation as
outlined in the Quality Control Procedures attached to this agreement
(Attachment "A")

ARTICLE 7:

Attachment "B" includes sample copies of mailing documentation covered by this
agreement.  The Manager, RCSC must be notified 80 days in advance for approval
to any proposed changes to this documentation which may affect correct
calculation/assessment of postage for mail released by the Postal Service under
this Agreement or affects any primary or secondary postal audit documentation
used to support this agreement.

ARTICLE 8:

Postal audit documents for this AMS will be maintained at the mailer's plant in
El Dorado Hills, California.  If requested by the Postal Service audit documents
will be available for postal inspection at the Sacramento IBS II plant with
seven (7) days prior notice to International Billing Services, Inc.,  A sample
pack will be maintained at the mailer's plant located in El Dorado Hills,
California for mailings submitted by International Billing Services, Inc., under
the AMS agreement.  The sample pack will include some of the required documents
as specified in Article 9 of this agreement and any additional documentation and
information desired by the mailer.  Some documentation for this agreement is
maintained electronically (Article 10) and certain documentation is maintained
by the Postal Liaison because of space limitations in the sample pack.  The
sample pack will consist of information for a particular "corp" or "plan."


                                       - 3 -
                                          
<PAGE>

The mailer defines a corp as a select client with an exact plan(s) consisting of
select envelopes and inserts (stuffers.)

The plan may differ numerous times for the same corp/client during a mailing
day.  Maintenance of the documentation is required to permit reconciliation with
the statements of mailing and to enable the Postal Service to verify the
accuracy of the computations for individual mailings as well as for the
aggregate of all mailings.  These records will be maintained centrally and
retained for a period of one year.

The mailer has been authorized to maintain in electronic format the following
providing the conditions in Article 10 are met:

- -The primary document, the "Postal Manifest Postage Listing," shows the 
number of pieces of mail, postage for each piece by destination and 
"corp/plan" or ":S-Key" and summarizes the postage and piece counts for each 
mailing under this authorized Alternate Mailing System Agreement.

ARTICLE 9:

PRIMARY MAILING RECORDS FOR IMAGE BILLS

POSTAL MANIFEST LISTING - Shows rate qualification by ZIP Code for mailpieces
by route number, 5-digit, 3-digit ZIP Codes and by residual.

Customer has authorization in Article 10 to maintain this documentation
electronically if approved by the Manager, Business Mail Entry in Sacramento,
California.

SECONDARY MAILING RECORDS

1.  Sample Pack enclosures for each corp/plan:

- -   Plan Job Card (shows the number pieces, corp/plan, file number, inserts,
    quality control checks initialed by each department as mail is processed
    through printing, inserting, sealing, packaging, traying, etc.,)

- -   Sample of job tray/sack labels for the exact corp/plan

- -   Sample of mailing envelope with permit imprint including all inserts

- -   Sample of tray labels for the exact corp/plan mailing

- -   StatementsPLUS Close Out Index (used for monitoring all activities and
    documents handling needed to close-out the corp/plan)

- -   StatementsPLUS Plan Summary Report

- -   Customer Return Letter

- -   Turnabout Analysis Summary Information

- -   Transmission Audit Report

- -   Facsimile Work Request Customer Invoice


                                       - 4 -
                                          
<PAGE>

- -   Customer Statement of Accounts or Billing Statistics/Billing Validation
    Report

ARTICLE 10:

Electronic Storage of the "Postal Manifest Listing" for any mailing generated,
is acceptable under this Agreement providing:

- -   The mailer must be able to provide the Postal Service the entire "Postal
    Manifest Listing" for any mailing generated within seven days after the
    date of mailing.  The information must be provided by the mailer to the
    Postal Service within 24 hours.

- -   The information can be extracted from the electronic media for a single
    mailpiece by keying the unique keyline from a specific mailpiece into the
    computer

- -   The mailer will ensure that for any mailing selected for postage
    verification by the Postmaster or designee of Rancho Cordova, California
    that the mailer will generate a complete hard copy of the "Postal Manifest
    Listing" for the entire contents of one or more tray or containers within
    that same mailing to the postal clerks verifying a mailing.  The
    information must be produced for verification of a mailing before a mailing
    is released

- -   The mailer will require 15 days advance notice to provide requests for the
    "Postal Manifest Listing" beyond seven days from the date of mailing

ARTICLE 11:

Postal verification may occur at anytime.  Verification will be conducted as
required to meet postal standards.  If mailings are accepted at the mailer's
plant they are subject to Plant Load Operations approval by the Sacramento
District of the Postal Service.  This may entail preliminary notice of mail 
volume in advance to allow the Postal Service adequate time for truck/trailer 
dispatches.

ARTICLE 12:

Overpayments and underpayments identified during USPS verification require a
postage adjustment.  Verification samples are deemed to be representative of the
entire mailing and postage adjustments calculations are based on the total
mailing.  The mailer must pay a penalty surcharge when the sampling verification
shows that the error exceeds 1.5% of the claimed postage.  The total corrected
postage for the entire mailing and a penalty equal to 10% of the postage error
calculation is deducted from the permit imprint advance deposit account (DMM
P730.1.2.)  Additionally, the mailer agrees to notify the RCSC, in writing,
regarding the reason for the error and how it will be prevented in the future.

ARTICLE 13:

Any underpayment of postage to the USPS detected by International Billing
Services, Inc., must be reported to the administering post office within five
(5) working days from the date of detection.  The reporting office will advise
the administering RCSC of all underpayments.


                                       - 5 -

<PAGE>

Any refund request or deficiency (underpayment) will trigger an investigation by
the administering RCSC and International Billing Services, Inc. to determine how
and why the error occurred, why it was not detected by the system, and what
corrective measures have or should be taken.  A joint audit will be performed if
determined necessary by the manager of the administering RCSC.

If the Manager, RCSC, determines excess postage was paid or postage was
underpaid because of an error by International Billing Services, Inc. the cost
of conducting the audit to identify and correct the cause of the problem and the
total administrative costs and processing costs incurred by the Postal Service
will be charged to International Billing Services, Inc.

ARTICLE 14:

The Manager, Rates and Classification Service Center may revoke this AMS
authorization if the mailer (DMM P730.2.7):

- -   Provides incorrect data for mailing and appears unable or unwilling to
    correct all problems

- -   Is not conducting required quality control procedures as described by the
    mailer in Attachment A

- -   No longer meets the criteria established by standard or the AMS agreement

- -   Does not present a mailing under this AMS for six (6) months

- -   Continues to present improperly prepared mailings

ARTICLE 15:

Duration and terms of this Agreement

The mailer may cancel this agreement at any time by giving written notice to the
San Bruno Manager, Rates and Classification Service Center.

ARTICLE 16:

Annual system reviews will be conducted by the San Bruno RCSC.  Monthly reviews
will be conducted by either the Manager, Business Mail Entry, Sacramento
District, the Postmaster, Rancho Cordova, California or their designees.

ARTICLE 17:

This agreement will remain in effect for a one-year period beginning December
18, 1995 and ending December 17, 1996.


                                       - 6 -
                                          
<PAGE>

ARTICLE 18:

This agreement consists of 18 articles and five (5) attachments and can only be
changed or modified by addendum with the approval of the Manager, San Bruno
Rates and Classification Service Center.

         ATTACHMENTS                        DESCRIPTION

- -    Attachment A                       Mailers Quality Control Procedures

- -    Attachment B                       Primary Documentation Samples

- -    Attachment C                       Mailer's Request for Alternate Mailing
                                        System

- -    Attachment D                       Mailer's Definition of Terms



                                       - 7 -

<PAGE>

                SIGNATURE PAGE - ALTERNATE MAILING SYSTEM AGREEMENT
                                          
FOR THE POSTAL SERVICE

              J. M. Long               Acting Manager, Customer Service Support
- --------------------------------- -----------------------------------------
              Name                                    Title

              /s/J. M. Long                      916 373-8703
- --------------------------------- ------------------------------------------
              Signature                               Telephone

              3/26/96                       Sacramento, CA 95799-0070
- --------------------------------- -------------------------------------------
              Date                                    City, State, ZIP + 4

FOR THE POSTAL SERVICE

              Larry Groce                             Postmaster
- --------------------------------- -------------------------------------------
              Name                                    Title

/s/Paulette Mahoney for Larry Groce                   916 574-3062
- ----------------------------------     --------------------------------------
              Signature                               Telephone

              3/18/96                       Rancho Cordova, CA 95670-9998
- ----------------------------------     --------------------------------------
              Date                                    City, State, ZIP + 4

FOR INTERNATIONAL BILLING SERVICES, INC.

              Mury Salls                     Vice President Postal Relations
- ----------------------------------     --------------------------------------
           Customer Name                              Title

              /s/Mury Salls                           916 939-4670
- ----------------------------------     --------------------------------------
              Signature                               Telephone Number

              3/21/96                            El Dorado Hills, CA 95762-5712
- ----------------------------------     ----------------------------------------
              Date                                    City, State, ZIP + 4

For Rates and Classification Service Center

    /s/Linda A. Deaktor         Manager, Rates and Classification Service Center
- ------------------------------  ------------------------------------------------
       Linda A. Deaktor                               Title

         3/28/96                            San Bruno, California 94096-9599
- ------------------------------    ---------------------------------------------
         Date of Approval                        City, State, ZIP + 4
                                          
<PAGE>

                                                                  Attachment A
                           ---------------------------------------------------
                                           Mailer's Quality Control Procedures
                                                                             
[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

<PAGE>

                            SAMPLE VERIFICATION CHECKLIST

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

<PAGE>


                                        CST 1
                                  MAIL VERIFICATION

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

<PAGE>

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

<PAGE>

CST 1

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


<PAGE>

CST 1

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

<PAGE>

CST 1

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

<PAGE>

CST 1

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

<PAGE>

CST 1

[*]

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

<PAGE>

CST 1

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*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.


<PAGE>

CST 1

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*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

<PAGE>

CST 1

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*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

                                9

<PAGE>

CST 1

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*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
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 REQUEST.

                                       10

<PAGE>

CST 1

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*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
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                                       11

<PAGE>

                                                                    ATTACHMENT B

                                                            SAMPLE DOCUMENTATION

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*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
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                         Postage Summary

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*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

<PAGE>
                         Postage Summary

[*]  

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

<PAGE>

                         Postage Summary

[*]  

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

<PAGE>

                         Postage Summary

[*]  

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

<PAGE>

                         Postage Summary

[*]  

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

<PAGE>

                         Postage Summary

[*]  

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

<PAGE>

                         Postage Summary

[*]  

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

<PAGE>

                         Postage Summary

[*]  

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

<PAGE>

                         Postage Summary

[*]  

*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

<PAGE>

                          SAMPLE VERIFICATION CHECKLIST

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*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
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<PAGE>

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*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

<PAGE>

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*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
 SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT 
 REQUEST.

<PAGE>

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*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
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<PAGE>


                  ATTACHMENT C - MAILER'S REQUEST FOR ALTERNATE
                  MAILING SYSTEM AGREEMENT                    

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<PAGE>

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                  ATTACHMENT D -- MAILER'S DEFINITION OF TERMS

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<PAGE>

PG 1 OF 5

DEFINITION OF TERMS

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*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
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<PAGE>

PG 2 OF 5

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*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
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 REQUEST.

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Pg 3 OF 5
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*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
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<PAGE>

Pg 4 OF 5

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*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
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<PAGE>

Pg 5 OF 5

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*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
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 REQUEST.




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