DOS XL

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DOS XL

Original author(s)	Paul Laughton Mark Rose Bill Wilkinson Mike Peters
Developer(s)	Optimized Systems Software
Final release	2.30 / 1984; 40 years ago (1984)
Platform	Atari 8-bit
Type	Atari DOS
License	Proprietary software

DOS XL is a discontinued Disk Operating System (DOS) written by Paul Laughton, Mark Rose, Bill Wilkinson, and Mike Peters and published by Optimized Systems Software (OSS) for the Atari 8-bit computers. It was designed to be compatible with Atari DOS which shipped with Atari, Inc.'s disk drives, which had also been written by the same team.