List of disk operating systems called DOS
This is a list of disk operating systems in which the acronym DOS is used to form their names.
x86 DOS systems
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), an OEM version of MS-DOS 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 1993), a disk operating system, a DOS clone, developed in Russia by PhysTechSoft
- FreeDOS (since 1998), an operating system for IBM PC compatible computers
- ROM-DOS, an MS-DOS clone by Datalight
Other operating systems
(in alphabetical order by name)
- AmigaDOS, provides the disk operating system portion of AmigaOS
- AMSDOS, a disk operating system for the 8-bit Amstrad CPC Computer (and various clones)
- ANDOS, a Russian operating system for Electronika BK-0010, Electronika BK-0011, and Electronika BK-0011M series computers
- Apple DOS, 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
- Cromemco DOS (CDOS), a CP/M-like operating system
- CSI-DOS, an operating system, created in Samara, for the Soviet Elektronika BK-0011M and Elektronika BK-0011 microcomputers
- DOS (Diskette Operating System), a small OS for 16-bit Data General Nova computers, a cut-down version of their RDOS.
- DEC BATCH-11/DOS-11, the first operating system to run on the Digital Equipment Corporation PDP-11 minicomputer.
- DIP DOS, the operating system of the Atari Portfolio
- DOS/360, 1966 IBM System/360 mainframe computer Disk Operating System
- DOS XL, an Atari 8-bit computer DOS from Optimized Systems Software
- GEMDOS, one of the components of the 32-bit Atari TOS
- IS-DOS, a disk operating system for Russian ZX Spectrum clones, developed in 1990 or 1991, by Iskra Soft (Leningrad, USSR)
- MDOS/MIDAS (1979), an operating system that was designed by Marc McDonald of Microsoft for the 8080/Z80 microprocessors
- MSX-DOS, a cross between MS-DOS 1.0 and CP/M developed by Microsoft for the 8-bit home computer standard MSX,
- NewDos/80, Apparat's feature-rich alternative to TRSDOS for the TRS-80.
- Oric DOS, for the Oric-1 home computer
- Sinclair QDOS, for the Sinclair QL
- RDOS, a real-time operating system released in 1972 for the popular Data General Nova and Eclipse minicomputers
- SpartaDOS X, an alternate disk operating system for Atari 8-bit computers
- TR-DOS, a disk operating system for the ZX Spectrum home computer
- TRSDOS, the operating system for the Tandy TRS-80 line of 8-bit Zilog Z80 microcomputers