This is a list of Unixes (sing. Unix).

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

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*Unics (⇢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) **Version 6 Unix (1977) **PWB/UNIX 1.0 (1977) ***USG 1.0 ****CB Unix 1 **UCLA Secure UNIX (1979)

*Version 7 (1979) **Xenix OS (1980) ***Santa Cruz Operation Xenix (1985) **Unix System III (1981)

*UNIX Time-Sharing System v8 (1985) *UNIX Time-Sharing System v9 (1986) *UNIX Time-Sharing System v10 (1989)

= AT&T UNIX Systems & 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 (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 (2001) *Open Unix 8MP1 (2001) *Open Unix 8MP2 (2001) *Open Unix 8MP3 (2002) *Open Unix 8MP4 (2002) *Santa Cruz Operation UnixWare 7.1.3 (2002) *SCO UnixWare 7.1.3 Update Pack 1 (2003)

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