List of Unix systems

Each version of the UNIX Time-Sharing System evolved from the version before, with version one evolving from the prototypal Unix. Not all variants and descendants are displayed.

Research Unix

Ken's new system (→Unix) (1969) UNIX Time-Sharing System v1 (1971) UNIX Time-Sharing System v2 (1972) UNIX Time-Sharing System v3 (1973) UNIX Time-Sharing System v4 (1973) UNIX Time-Sharing System v5 (1974) UNSW 01 (1978) UNIX Time-Sharing System v6 (1974) MINI-UNIX (1977) PWB/UNIX 1.0 (1977) USG 1.0 CB UNIX 1

UNIX Time-Sharing System v7 (1979) Unix System III (1981) UNIX Time-Sharing System v8 (1985) UNIX Time-Sharing System v9 (1986) UNIX Time-Sharing System v10 (1989)

After the release of Version 10, the Unix research team at Bell Labs turned its focus to Plan 9 from Bell Labs, a distinct operating system that was first released to the public in 1993.

AT&T UNIX Systems and descendants

Each of the systems in this list is evolved from the version before, with Unix System III evolving from both the UNIX Time-Sharing System v7 and the descendants of the UNIX Time-Sharing System v6.

UNIX System III (1981) UNIX System IV (1982) UNIX System V (1983) UNIX System V Release 2 (1984) UNIX System V Release 3.0 (1986) UNIX System V Release 3.2 (1987) UNIX System V Release 4 (1988) UNIX System V Release 4.2 (1992) UnixWare 1.1 (1993) UnixWare 1.1.1 (1994) UnixWare 2.0 (1995) UnixWare 2.1 (1996) UnixWare 2.1.2 (1996)

UnixWare 7 (System V Release 5) (1998) UnixWare 7.0.1 (1998) UnixWare 7.1 (1999) UnixWare 7.1.1 (1999) UnixWare NSC 7.1+IP (2000) UnixWare NSC 7.1+LKP (2000) UnixWare NSC 7.1DCFS (2000) Open Unix 8 (UnixWare 7.1.2) (2001) Open Unix 8MP1 (2001) Open Unix 8MP2 (2001) Open Unix 8MP3 (2002) Open Unix 8MP4 (2002) SCO UnixWare 7.1.3 (2002) SCO UnixWare 7.1.3 Update Pack 1 (2003) SCO UnixWare 7.1.4 (2004)

Historical flow chart of Unix and Unix-like variants.

See also

• Ancient UNIX
• Wollongong Unix
• Uniplus+
• Version 7 Unix

References