List of Unix systems

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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[edit]

  • 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)

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[edit]

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[edit]

References[edit]