List of Operating Systems - Proprietary - Bell Labs

Bell Labs

  • Unics ("Ken's new system," for its creator (Ken Thompson), officially Unics and then Unix, the prototypic operating system created in Bell Labs in 1969 that formed the basis for the Unix family of operating systems)
    • UNIX Time-Sharing System v1
    • UNIX Time-Sharing System v2
    • UNIX Time-Sharing System v3
    • UNIX Time-Sharing System v4
    • UNIX Time-Sharing System v5
    • UNIX Time-Sharing System v6
      • MINI-UNIX
      • PWB/UNIX
        • USG
          • CB Unix
    • UNIX Time-Sharing System v7 (It is from Version 7 Unix (and, to an extent, its descendants listed below) that almost all Unix-based and Unix-like operating systems descend.)
      • Unix System III
      • Unix System IV
      • Unix System V
        • Unix System V Releases 2.0, 3.0, 3.2, 4.0, and 4.2
    • UNIX Time-Sharing System v8
    • UNIX TIme-Sharing System v9
    • UNIX Time-Sharing System v10

Non-Unix Operating Systems:

  • BESYS
  • Plan 9 from Bell Labs

Read more about this topic:  List Of Operating Systems, Proprietary

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