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 (1975)

The versions leading to v7 are also sometime called Ancient unix. 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.

  • 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

References
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