DOS 4.0 / QDOS and Source Code

DOS 4.0 (C) 1984 Atari inc.
DOS 4.0 Source Code

Dos 4.0 - Screenshot 01

Dos 4.0 – Screenshot 01

Dos 4.0 - Screenshot 02

Dos 4.0 – Screenshot 02

Dos 4.0 - Screenshot 03

Dos 4.0 – Screenshot 03

Dos 4.0 Source - Screenshot 01

Dos 4.0 Source – Screenshot 01

  • Also known as “QDOS” or “Antic-DOS”
  • Written by Atari, released by Antic
  • Menu driven
  • XL/XE only
  • D0: – D9:
  • Supports drive redirection
  • Single, enhanced, double, and quad density
  • Lacks compatibility with about any DOS
  • Feature to read DOS 2 and DOS 3 disks
  • Official Source Code

System disk (ATR): DOS 4.0
MyDOS 360KB format (ATR / 7-Zip): Dos 4.0 sources

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