DOS Plus
Developer(s) Digital Research
Family CP/M & MS-DOS
User Interface CLI

DOS Plus (also known as DOS+) is an operating system written by Digital Research, first released in 1985. It can be seen as an intermediate step between CP/M-86 and DR-DOS. DOS-Plus would change its name and become DR-DOS in 1988.


  • DOS Plus 1.0? - Jan 09, 1986
  • DOS Plus 1.2 - April - July 1986. In July, 1986 GEM was released
  • DOS Plus 2.0 - March 1988

Computers that used DOS Plus

DOS Plus was the main operating system for the non-PC compatible BBC Master 512 and the Philips Yes. PC compatible versions were supplied with the Amstrad PC-1512 and the TRAN Jasmin Turbo.

MS-DOS compatible operating systems
Single User MS-DOS *  IBM PC-DOS *  DR-DOS *  PTS-DOS *  86-DOS *  FreeDOS *  FreeDOS-32
OpenDOS *  DOS Plus
Multiuser MultiUser DOS *  PC-MOS *  Real/32
Embedded ROM-DOS
CP/M and CP/M-like operating systems
Digital Research: CP/MMP/MCP/M-86 Concurrent CP/MPersonal CP/MCP/NETDOS Plus

Robotron: CP/A • SCP
Third-party: TurboDOS • ZS/DOS • NZ-COM • CP/J

From CompuWiki, a Wikia wiki.
Community content is available under CC-BY-SA unless otherwise noted.