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DOS or Disk Operating System could refer to any number of incompatible operating systems, including but not limited to: MS-DOS, PC-DOS, DR-DOS, FreeDOS, PTS-DOS, ROM-DOS, Novell DOS & OpenDOS on IBM-PC compatibles; additionally with AmigaDOS, AMSDOS, ANDOS, Apple DOS, Atari DOS, Commodore DOS, CSI-DOS, ProDOS, and TRS-DOS running on non-x86 hardware. If at all possible, please be clear if it was an IBM-PC compatible or other computer running DOS.

DOS or Disk Operating System could refer to any number of incompatible operating systems, including but not limited to (on IBM-PC compatibles):

  • MS-DOS
  • PC-DOS
  • DR-DOS
  • FreeDOS
  • PTS-DOS
  • ROM-DOS
  • Novell DOS
  • OpenDOS

Additionally running on non-x86 hardware:

  • AmigaDOS
  • AMSDOS
  • ANDOS
  • Apple DOS
  • Atari DOS
  • Commodore DOS
  • CSI-DOS
  • ProDOS
  • TRS-DOS

If at all possible, please be clear if it was an IBM-PC compatible or other computer running DOS.

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