AMENDMENT #4 TO
                        AGREEMENT FOR WHOLESALE FINANCING
                              (Security Agreement)


This Amendment #4 to the Agreement for Wholesale Financing (this "Amendment") is
made as of April 30, 1998 by and between  MicroAge  Computer  Centers,  Inc.,  a
Delaware  corporation  ("MCCI"),  MicroAge Logistics Services,  Inc., a Delaware
corporation ("MLS"), Pinacor, Inc., a Delaware corporation ("Pinacor"),  and IBM
Credit Corporation, a Delaware corporation ("IBM Credit").

                                    RECITALS

         WHEREAS,  MCCI,  MLS and IBM  Credit  have  entered  into that  certain
Agreement  for  Wholesale  Financing  dated as of December 17, 1993 (as amended,
supplemented or as otherwise modified from time to time, the "Agreement");

         WHEREAS,  Pinacor is an affiliate of MCCI and MLS and will be acquiring
inventory with financing provided by IBM Credit;

         WHEREAS,  IBM Credit, MCCI, MLS and Pinacor believe it is in their best
interests to make Pinacor a party to the Agreement;

         WHEREAS,  MCCI,  MLS and Pinacor desire to participate in the corporate
restructuring described on Exhibit C attached hereto (the "Restructuring")' and

         WHEREAS,  MCCI, MLS and Pinacor desire the consent of IBM Credit to the
Restructuring  and in connection  therewith to amend the Agreement in the manner
hereinafter set forth.

                                    AGREEMENT

         NOW, THEREFORE,  for and in consideration of the premises and for other
good and valuable consideration,  the receipt and sufficiency of which is hereby
acknowledged,  IBM Credit  ("you"),  MCCI, MLS and Pinacor ("we" or "us") hereby
agree as follows  (except as otherwise  defined herein,  all  capitalized  terms
shall have the same meanings set forth in the Agreement).

         1. MCCI,  MLS and Pinacor  hereby  represent  and warrant to IBM Credit
that Exhibit C completely and accurately describes the Restructuring. IBM Credit
consents to the Restructuring.

         2. Pinacor is hereby made a party to the Agreement,  and all references
to "MCCI" in the Agreement shall be deemed to be references to MicroAge Computer
Centers,  Inc.,  MicroAge  Logistics  Services,  Inc., and Pinacor,  Inc. acting
jointly and severally.  Pinacor hereby expressly assumes, on a joint and several
basis,  all obligations of MCCI and MLS under the agreement,  including  without
limitation,  all obligations  regarding interest charges, fees and other amounts
payable to IBM Credit  under  letter  agreements  executed by MCCI,  MLS and IBM
Credit in  connection  with the  Agreement.  Nothing  herein  shall be deemed to
release MCCI or MLS from any such obligations. MCCI, MLS and Pinacor
<PAGE>
hereby affirm all representations, warranties and obligations of MCCI and MLS in
the  Agreement.  MCCI,  MLS and  Pinacor  agree that they  shall be jointly  and
severally  responsible  and  liable  for all  obligations,  representations  and
warranties  of MCCI and/or MLS and/or  Pinacor under the  Agreement,  as amended
hereby.

In  furtherance  of the foregoing and not as a limitation,  to secure all of its
current and future debts owed to IBM Credit,  whether under the Agreement or any
current or future  guaranty or other  agreement,  Pinacor grants to IBM Credit a
security  interest in all inventory,  equipment,  fixtures,  accounts,  contract
rights,  chattel  paper,  instruments,  documents  of title,  deposit  accounts,
reserves  and general  intangibles,  now owned or  hereafter  acquired,  and all
attachments,  parts, accessories,  accessions,  substitutions,  and replacements
thereto and all  proceeds  thereof,  and to the extent  related to the  property
described above, all books, correspondence,  credit files, records, invoices and
other  papers and  documents,  including  without  limitation,  to the extent so
related, all tapes, cards, computer runs, computer programs and other papers and
documents in the  possession  or control of Pinacor or any computer  bureau from
time to time acting for Pinacor,  and, to the extent so related,  all rights in,
to and under all policies of insurance,  including  claims of rights to payments
thereunder  and proceeds  therefrom,  including  any credit  insurance,  and all
proceeds thereof.

         3. Paragraph  13(c) of the Agreement is hereby amended by deleting such
Paragraph  13(c)  in  its  entirety  and  substituting,  in  lieu  thereof,  the
following.

         "(c) For the period  commencing May 1, 1998 and ending August 31, 1998,
the Consolidated Group shall at all times maintain,  on a consolidated  basis, a
ratio of (i) the sum of (A)  total  liabilities  plus (B)  that  portion  of the
Outstanding  Balance (as defined in the Purchase Agreement executed with Deutche
Financial  Services  (DFS) of all Sold  Receivables  (as defined in the Purchase
Agreement executed with DFS) which we and our affiliates have elected to receive
if we and our  affiliates  have  received  any or all of the amount due prior to
Collections  (as defined in the Purchase  Agreement  executed  with DFS) of such
Sold Receivables by DFS pursuant to Section 2.1.B of such Purchase Agreement, to
(ii)  Tangible Net Worth of less than seven and one half (7.5) to one  (1.0)(the
"Leverage Ratio"). Commencing September 1, 1998, the Leverage Ratio shall at all
time be less than six and one half (6.5) to one (1).

         4. Exhibit A to the  Agreement  is hereby  restated in its entirety and
replaced by Exhibit A attached hereto and incorporated herein by reference.

         5. Exhibit B to the  Agreement  is hereby  restated in its entirety and
replaced by Exhibit B attached hereto and incorporated herein by reference.

         6.  Representations  and  Warranties.  We  make  to you  the  following
representations  and warranties all of which are material and are made to induce
you to enter into this Agreement.
<PAGE>
         6.1 Accuracy and  Completeness of Warranties and  Representations.  All
representations  made by us in the Agreement were true and accurate and complete
in every  respect as of the date made,  and, as amended by this  Amendment,  all
representations  made by us in the Agreement are true,  accurate and complete in
every  material  respect as of the date hereof,  and do not fail to disclose any
material fact necessary to make representations not misleading.

         6.2 Violation of Other  Agreements.  The execution and delivery of this
Amendment and the  performance  and  observance of the covenants to be performed
and observed  hereunder do not violate or cause us not to be in compliance  with
the terms of any agreement to which we are a party.

         6.3  Litigation.  Except as has been disclosed by us to you in writing,
there is no litigation,  proceeding,  investigation  or labor dispute pending or
threatened against us, which if adversely determined, would materially adversely
affect our ability to perform our obligations  under the Agreement and the other
documents,  instruments  and  agreements  executed in  connection  therewith  or
pursuant hereto.

         6.4   Enforceability  of  Amendment.   This  Amendment  has  been  duly
authorized,  executed  and  delivered  by us and is  enforceable  against  us in
accordance with its terms.

         7.  Ratification of Agreement.  Except as specifically  amended hereby,
all of the provisions of the Agreement shall remain  unamended and in full force
and effect. We hereby, ratify, confirm and agree that the Agreement,  as amended
hereby,  represents  a valid  and  enforceable  obligation  of ours,  and is not
subject to any claims, offsets or defense.

         8. Governing Law. This Amendment  shall be governed by and  interpreted
in accordance with the laws of the State of Arizona.

         9.  Counterparts.  This  Amendment  may be  executed  in any  number of
counterparts,  each  of  which  shall  be an  original  and all of  which  shall
constitute one agreement.

IN WITNESS  WHEREOF,  this  Amendment has been duly  executed by the  authorized
officers of the undersigned as of the day and year first above written.


                                        MICROAGE COMPUTER CENTERS, INC.

                                        By: /s/ James R. Daniel
                                           ----------------------------
                                        Title:  Treasurer
                                              -------------------------
                                            /s/  James H. Domaz
                                        -------------------------------
                                                Asst. Secretary
<PAGE>
                                        MICROAGE LOGISTICS SERVICES, INC.

                                        By: /s/ James R. Daniel
                                           ------------------------------
                                        Title:  Treasurer
                                              ---------------------------
                                            /s/  James H. Domaz
                                        ---------------------------------
                                                Asst. Secretary

                                        PINACOR, Inc.

                                        By: /s/ James R. Daniel
                                           ------------------------------
                                        Title:  Treasurer
                                              ---------------------------
                                            /s/ James H. Domaz
                                        ---------------------------------
                                                Asst. Secretary


                                        Accepted and Agreed:

                                        IBM CREDIT CORPORATION

                                        By:  /s/ Ronald J. Bachner
                                           ------------------------------
                                        Title:  Mgr. Global Strategic
                                        ---------------------------------
                                                Account Marketing