"Windows faces competition from IBM OS/2, PC-DOS, Apple Mac,
Caldera OpenDOS, Linux, BeOS, Novell NetWare, Sun Solaris, Sun
JavaOS, HP/UX, DEC VMS and Digital UNIX, Lucent Inferno, SCO
OpenServer and UNIXWare, and IBM AIX and OS/400 -- plus a range of
nascent software-based technologies, from ``network computers'' to
``information appliances.'' Those that have failed in the market
have done so because consumers rejected them."