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OS9

From Wikipedia, the free encyclopedia

OS9, OS-9, or OS 9 may refer to:

  • Mac OS 9, an operating system for the Apple Macintosh
  • iOS 9, the ninth version of the iOS operating system
  • OS-9, a Unix-like real time operating system
  • OS/9, an operating system for the UNIVAC
  • OS9 (gene), which encodes protein OS-9 in humans