EXHIBIT 32.1
                CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly  Report of Manchester  Technologies,  Inc. (the
"Company")  on Form 10-Q for the fiscal  quarter  ended April 30, 2004, as filed
with the  Securities  and Exchange  Commission  on or about the date hereof (the
"Report"),  I, Barry R. Steinberg,  President and Chief Executive Officer of the
Company, 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 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: June 18, 2004              /S/  Barry R. Steinebrg
                                     -----------------------------------

                                     Barry R. Steinberg
                                     President and Chief Executive Officer