DOS 10 may refer to OS/2 versions:

  • OS/2 1.0, "DOS" version 10.00 by Microsoft and IBM
  • OS/2 1.1, "DOS" version 10.10 by Microsoft and IBM
  • OS/2 1.2, "DOS" version 10.20 by Microsoft and IBM
  • OS/2 1.3, "DOS" version 10.30 by IBM

See also edit