DR-DOS 5 then was important because it added support for HMA and UMBs. It had a GUI named ViewMax, which was a cutdown GEM 3. DR-DOS was so good that Microsoft was forced to released MS-DOS 5.

The Config.sys is the main configuration file used by OS/2, MS-DOS and other operating systems. Config.sys commands loads programs into the memory and sets ups the memory management of the system. The ...

Devicelogics, Inc., provider of DOS- and Linux-based embedded systems technologies, on Tuesday began shipping DR-DOS 8.0, the latest version of the embedded operating system.