FILED PURSUANT TO 424(b)(3) REGISTRATION NO. 333-48259 SUNGARD DATA SYSTEMS INC. SUPPLEMENT DATED APRIL 8, 1998 TO PROSPECTUS DATED MARCH 27, 1998 This supplement provides new and additional information beyond that contained in the Prospectus and should be retained and read in conjunction with such Prospectus. Under the caption "SELLING STOCKHOLDERS," the line items regarding Wallace Aptman, Charles D. Klein, Joseph J. Nicholson and David P. Steinmann are amended and restated as follows: # OF SHARES # OF SHARES OWNED BEING # OF SHARES % OF SHARES BEFORE THE OFFERED FOR OWNED AFTER OWNED AFTER NAME OF SELLING STOCKHOLDER OFFERING SALE THE OFFERING THE OFFERING - ----------------------------------------------------------------------------------------------------- Wallace Aptman....................... 4,320 4,320 0 * American Philanthropic Foundation.... 100 100 0 * Charles D. Klein..................... 5,980 5,980 0 * Charles D. and Jane P. Klein Foundation.......................... 1,560 1,560 0 * Joseph J. Nicholson.................. 259,635 259,635 0 * Joseph J. Nicholson Charitable Remainder Unitrust................... 60,000 60,000 0 * David P. Steinmann................... 13,740 13,740 0 * 1185 Park Foundation................. 1,600 1,600 0 * ______________________________ * Less than one (1) percent of the outstanding Common Stock of SunGard.