The National Center for Supercomputing Applications (NCSA) has discontinued development of Mosaic, the first widely-available Web browser. The final version of Mosaic for Windows was recently posted to the NCSA Web site. The first version was posted in 1993. Mosaic is the technical base of browsers from Microsoft, Netscape, and Spyglass. Dave Thompson and Marc Andreesen, now at Netscape, created the first Mosaic browser, basing it on an original 1990 design by Tim Berners-Lee. Berners-Lee worked for CERN in Geneva at the time. Thompson, now a Web product developer at Spyglass, put the move in perspective, "It had to happen. NCSA is a research center for developing new tools for the scientific community. Once something is taken over by commercial centers, it's really out of \[their\] jurisdiction." A moment of silence, please