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Macintosh Application Environment was a Virtual Machine (VM) before VMs became popular.

• mechanical_bear 5y ago
  VMs were quite popular before this project, dating back to the 1960s.
  • mnd999 5y ago
    Indeed, the previous poster might be interested in z/VM for example.
    • rbanffy 5y ago
      Or Smalltalk 80.
• rbanffy 5y ago
  VM's have been popular since IBM more or less invented the term in the 60's. It's not even possible anymore to install an OS on a modern mainframe bare metal. IIRC, the z12 was the last one where this was possible.