The Official DR DOS Website

DR DOS 9.0 is a clean-room reimplementation of the original Digital Research DOS from 1988, designed to honor Gary Kildall's legacy while being legally unencumbered. The latest release (Revision 330, March 14 2026) includes core file management, a text editor, system utilities, and unique low-level memory manipulation commands (PEEK, POKE, JMP) aimed at hobbyists, developers, and educators.