Category
page 1Caldera (company) operating systems

DR-DOS
DR-DOS is a disk operating system for IBM PC compatibles, originally developed by Gary A. Kildall's Digital Research, Inc. and derived from Concurrent PC DOS 6.0, which was an advanced successor of CP/M-86. Upon its introduction in 1988, it was the first DOS that attempted to be compatible with IBM PC DOS and MS-DOS.
Caldera OpenLinux
defunct Linux distribution
Q3353144
REDIRECT DR-DOS#Caldera