Exhibit 99.1 AMENDMENT NO. 1 TO AGREEMENT AND PLAN OF MERGER Amendment No. 1 to Agreement and Plan of Merger, dated as of August 4, 2000 (this "AMENDMENT"), to the Agreement and Plan of Merger, dated as of July 30, 2000 (the "MERGER AGREEMENT") among...Agreement and Plan of Merger • August 7th, 2000 • National Computer Systems Inc • Services-computer processing & data preparation • Minnesota
