!!! Dos XL

DOS XL is a Disk Operating System (DOS) written by Paul Laughton, Mark Rose, Bill Wilkinson and Mike Peters and produced by Optimized Systems Software (OSS) for Atari 8-bit microcomputers. It was designed to be compatible with Atari DOS which came shipped with Atari's disk-drives.

* [Dos XL Article in Wikipedia|http://en.wikipedia.org/wiki/DOS_XL]
* [BASIC on-off from DOS XL commandline]