Mac OS/History

< Mac OS

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Versions of Mac OS

  • System 1.0
  • System 2.0
  • System 3.0
  • System Tools 4.0 (System 3.2, Finder 5.3)
  • System Tools 5.0 (System 4.2, Finder 6.0)
  • System 6.0 (Finder 6.1)
  • System 6.0.5
  • System 6.0.7 (buggy)
  • System 7.0 (released in late 1991; integrated MultiFinder into the basic OS)
  • System 7.0.1 (introduced with LC II and Quadra series)
  • System 7* (System 7 Tuner)
  • System 7.1
  • System 7.2
  • System 7.5
  • System 7.5.3
  • Mac OS 7.6 (name changed because of the experimental clone program)
  • Mac OS 8.0
  • Mac OS 8.1
  • Mac OS 8.5
  • Mac OS 8.6 (now runs on top of a microkernel; can run Carbon API apps)
  • Mac OS 9.0
  • Mac OS 9.1
  • Mac OS X 10.0 (switch to BSD-derived Darwin kernel and new Quartz/Aqua GUI; includes 9.1, which it runs in a virtual machine)
  • Mac OS X 10.1 (major speedups)