List of DOS operating systems

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This is a list of disk operating systems in which the acronym DOS is used to form their names.

x86 DOS systems[edit]

Main article: DOS

These operating systems, which run on x86 microprocessors, most commonly are used on IBM PC-compatibles.

  • 86-DOS (aka. QDOS, created 1980), an operating system developed by Seattle Computer Products for its 8086-based S-100 computer kit, heavily inspired by CP/M
  • MS-DOS (since 1981), a Microsoft operating system based on 86-DOS for x86-based personal computers
  • PC DOS (aka IBM DOS) (since 1981), originally developed by Microsoft for the IBM Personal Computer and compatibles, manufactured and sold by IBM from the 1980s to the 2000s
  • Concurrent DOS (aka CDOS, Concurrent PC DOS and CPCDOS) (since 1983), a PC DOS and CP/M-86 compatible multiuser multitasking operating system, based on Concurrent CP/M-86 developed by Digital Research
  • FlexOS, a modular distributed real-time multitasking operating system with optional DOS emulation based on Concurrent DOS 286 by Digital Research
  • 4680 OS, an IBM operating system based on FlexOS 286 by Digital Research
  • 4690 OS, an IBM operating system based on FlexOS 386 by Digital Research
  • Multiuser DOS (aka MDOS), a PC DOS and CP/M-86 compatible multiuser multitasking operating system based on Concurrent DOS by Digital Research
  • System Manager, a successor of Multiuser DOS by Datapac Australasia
  • REAL/32, a real-time successor of Multiuser DOS by Intelligent Micro Software
  • DOS Plus (since 1985), a PC DOS and CP/M-86 compatible multitasking operating system for early x86-based personal computers, based on Concurrent PC DOS 4.1/5.0 by Digital Research
  • DR-DOS (aka DR DOS) (since 1988), a PC DOS-compatible operating system for IBM PC-compatible personal computers, originally developed by Digital Research and derived from Concurrent PC DOS 6.0
  • NetWare PalmDOS, a successor of DR DOS 6.0 specifically tailored for early mobile and palmtop PCs by Novell
  • Novell DOS, a multitasking successor of DR DOS 6.0 by Novell
  • OpenDOS, a successor of Novell DOS by Caldera
  • PTS-DOS (since 1991), a disk operating system, a DOS clone, developed in Russia by PhysTechSoft
  • FreeDOS (since 1994), an operating system for IBM PC compatible computers
  • ROM-DOS, a MS-DOS clone by Datalight

Other Disk Operating Systems[edit]

(in alphabetical order by name)

  • AmigaDOS, provides the disk operating system portion of the AmigaOS. This includes file systems, file and directory manipulation, the command-line interface, file redirection and so on
  • AMSDOS, a disk operating system for the 8-bit Amstrad CPC Computer (and various clones). The name is a contraction of Amstrad Disc Operating System
  • ANDOS, a Russian operating system for Electronika BK-0010, Electronika BK-0011, and Electronika BK-0011M series computers
  • Apple DOS, refers to operating systems for the Apple II series of microcomputers from late 1978 through early 1983
  • Apple ProDOS, the name of two similar operating systems for the Apple II series of personal computers
  • Atari DOS, the disk operating system used with the Atari 8-bit family of computers
  • Commodore DOS, the disk operating system used with Commodore's 8-bit computers
  • CSI-DOS, an operating system, created in Samara, for the Soviet Elektronika BK-0011M and Elektronika BK-0011 microcomputers
  • DOS, an OS for 16-bit Data General Nova computers
  • DEC BATCH-11/DOS-11, the first operating system to run on the Digital Equipment Corporation PDP-11 minicomputer.
  • DOS/360, 1966 IBM System/360 mainframe computer Disk Operating System
  • GEMDOS, one of the components of the 32 bit Atari TOS
  • IS-DOS, a disk operating system for Russian ZX Spectrum clones. iS-DOS has been developed in 1990 or 1991, by Iskra Soft (Leningrad, USSR)
  • MDOS/MIDAS (created 1979), refers to an operating system that was designed by Marc McDonald of Microsoft in 1979. It was designed for the 8080/Z80 microprocessors, popular due to CP/M at the time
  • MSX-DOS, a Disk operating system developed by Microsoft for the 8-bit home computer standard MSX, and is a cross between MS-DOS rev 1.0 and CP/M
  • RDOS, a real-time operating system released in 1972 for the popular Data General Nova and Eclipse minicomputers
  • TRSDOS, the operating system for the Tandy TRS-80 line of 8-bit Zilog Z80 microcomputers that were sold through Radio Shack through the late 1970s and early 1980s

See also[edit]