EXHIBIT 32.1

 

Written Statement of the Chief Executive Officer

Pursuant to 18 U.S.C. Section 1350

 

Solely for the purposes of complying with 18 U.S.C. Section 1350, I, the undersigned President and Chief Executive Officer of Fiserv, Inc. (the “Company”), hereby certify that the Quarterly Report on Form 10-Q of the Company for the quarter ended June 30, 2004 (the “Report”) fully complies with the requirements of Section 13(a) of the Securities Exchange Act of 1934 and that information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

 

By:  

/s/ Leslie M. Muma


    LESLIE M. MUMA
    July 21, 2004