Netscape Navigator was inspired by the success of the Mosaic web browser, which was co-written by Marc Andreessen, a part-time employee of the National Center for Supercomputing Applications at the University of Illinois. After Andreessen graduated in 1993, he moved to California and there met Jim Clark, the recently departed founder of Silicon Graphics. Clark believed that the Mosaic browser had great commercial possibilities and provided the seed money. Soon Mosaic Communications Corporation was in business in Mountain View, California, with Andreessen as a vice-president. Since the University of Illinois was unhappy with the company's use of the Mosaic name, the company changed its name to Netscape Communications (suggested by product manager Greg Sands) and named its flagship web browser Netscape Navigator.