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...

the products included General Software OEM-DOS, Network-DOS, Embedded DOS, Embedded DOS-ROM, Embedded DOS-XL and Embedded BIOS. In 1998 they partnered...

used a command line instead of a menu. DOS XL provided a menu program in addition to the command line. This DOS could read SS/SD, SS/ED, SS/DD and DS/DD...

Atari DOS, Atari BASIC, and the Atari Assembler Editor for Atari, Inc., and many OSS products are substantially improved versions. OS A+ and DOS XL are...

called DOS can be booted from a floppy for higher level functions such as filesystems. Third-party replacements for Atari DOS include DOS XL, SpartaDOS, MyDOS...

DR DOS 6.0 by Novell OpenDOS, a successor of Novell DOS by Caldera Atari DOS, from Atari, Inc. DOS XL, from Optimized Systems Software MyDOS SmartDOS SpartaDOS...

Several modified versions working with different DOS systems have been released by other authors. Turbo-Basic XL greatly improves execution over Atari BASIC...

Atari users, the drive shipped with DOS XL from Optimized Systems Software, authors of the original Atari DOS. DOS XL added support for double-density disks...

July 2015. A proposed fourth pipeline, called Keystone XL (sometimes abbreviated KXL, with XL standing for "export limited") Pipeline, would have connected...

switch from Wellbutrin XL to Budeprion XL. On 3 October 2012, however, the FDA reversed this opinion, announcing that "Budeprion XL 300 mg fails to demonstrate...