EXHIBIT 99.1

                           CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350
                       AS ADOPTED PURSUANT TO SECTION 906
                        OF THE SARBANES-OXLEY ACT OF 2002

I, Barry R.  Steinberg,  President  and Chief  Executive  Officer of  Manchester
Technologies,  Inc. (the  "Company"),  do hereby certify,  pursuant to 18 U.S.C.
Section 1350, as adopted  pursuant to Section 906 of the  Sarbanes-Oxley  Act of
2002, that, to my knowledge:

1.   the Quarterly  Report on Form 10-Q of the Company for the quarterly  period
     ended  October  31,  2002,  as  filed  with  the  Securities  and  Exchange
     Commission (the "Report"),  fully complies with the requirements of Section
     13(a) or 15(d) of the Securities Exchange Act of 1934; and

2.   the information  contained in the Report fairly  presents,  in all material
     respects, the financial condition and results of operations of the Company.


Date: December 12, 2002

/S/ Barry R. Steinberg
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Barry R. Steinberg
President and Chief Executive Officer
(Principal Executive Officer)