A server operating system for the Intel platform from UnXis (formerly The SCO Group). It is based on Unix System V Release 4.2MP and includes SMP support for two processors with optional support for up to 32. As of UnixWare 2.1, it includes NetWare 4.1 file, print and directory services. UnixWare Personal Edition used to be the client version which came with the Mosaic Web browser. UnixWare was originally developed by Univel, a joint venture of Novell and AT&T's Unix System Labs (USL). In 1993, Novell purchased USL and UnixWare and sold it to SCO two years later. See UnixWare 7, OpenServer and SCO.