This is a list of disk operating systems in which the acronym ''DOS'' is used to form their names. Many of these are simply referred to as "DOS" within their respective communities.

MS-DOS / IBM PC DOS compatible systems

MS-DOS MS-DOS ( ; acronym for Microsoft Disk Operating System, also known as Microsoft DOS) is an operating system for x86-based personal computers mostly developed by Microsoft. Collectively, MS-DOS, its rebranding as IBM PC DOS, and a few oper ...

(since 1981), Microsoft operating system based on 86-DOS for x86-based personal computers *

IBM PC DOS IBM PC DOS, an acronym for IBM Personal Computer Disk Operating System, is a discontinued disk operating system for IBM PC compatibles. It was manufactured and sold by IBM from the early 1980s into the 2000s. Developed by Microsoft, it was als ...

(since 1981), OEM version of MS-DOS for the IBM Personal Computer and compatibles, manufactured and sold by IBM from the 1980s to the 2000s *

DR-DOS DR-DOS (written as DR DOS, without a hyphen, in versions up to and including 6.0) is a disk operating system for IBM PC compatibles. Upon its introduction in 1988, it was the first DOS attempting to be compatible with IBM PC DOS and MS-DO ...

(since 1988), MS-DOS-compatible operating system originally developed by Digital Research *

ROM-DOS Datalight was a privately held software company specializing in power failsafe and high performance software for preserving data integrity in embedded systems. The company was founded in 1983 by Roy Sherrill, and is headquartered in Bothell, Wa ...

(1989), MS-DOS clone by Datalight *

PTS-DOS PTS-DOS (aka PTS/DOS) is a disk operating system, a DOS clone, developed in Russia by PhysTechSoft and Paragon Technology Systems. History and versions PhysTechSoft was formed in 1991 in Moscow, Russia by graduates and members of MIPT, i ...

(since 1993), MS-DOS clone developed in Russia by PhysTechSoft *

FreeDOS FreeDOS (formerly Free-DOS and PD-DOS) is a free software operating system for IBM PC compatible computers. It intends to provide a complete MS-DOS-compatible environment for running legacy software and supporting embedded systems. FreeDOS ca ...

(since 1998), open source MS-DOS clone

Other x86 disk operating systems with "DOS" in the name

* 86-DOS (a.k.a. QDOS, created 1980), an operating system developed by Seattle Computer Products for its 8086-based S-100 computer kit, heavily inspired by CP/M * Concurrent DOS (a.k.a. CDOS, Concurrent PC DOS and CPCDOS) (since 1983), a CP/M-86 and MS-DOS 2.11 compatible multiuser, multitasking DOS, based on Concurrent CP/M-86 developed by Digital Research * 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 * Multiuser DOS (a.k.a. MDOS), a PC DOS and CP/M-86 compatible multiuser multitasking operating system based on Concurrent DOS by Digital Research *

NetWare PalmDOS DR-DOS (written as DR DOS, without a hyphen, in versions up to and including 6.0) is a disk operating system for IBM PC compatibles. Upon its introduction in 1988, it was the first DOS attempting to be compatible with IBM PC DOS and MS-DO ...

, a successor of DR DOS 6.0 specifically tailored for early mobile and palmtop PCs by Novell *

Novell DOS DR-DOS (written as DR DOS, without a hyphen, in versions up to and including 6.0) is a disk operating system for IBM PC compatibles. Upon its introduction in 1988, it was the first DOS attempting to be compatible with IBM PC DOS and MS-DO ...

, a multitasking successor of DR DOS 6.0 by Novell * OpenDOS, a successor of Novell DOS by Caldera

Disk operating systems for other platforms

* AmigaDOS, the disk operating system portion of AmigaOS * AMSDOS, for Amstrad CPC compatibles * ANDOS, operating system for the Russian Electronika BK computers *

Apple DOS Apple DOS is the family of disk operating systems for the Apple II series of microcomputers from late 1978 through early 1983. It was superseded by ProDOS in 1983. Apple DOS has three major releases: DOS 3.1, DOS 3.2, and DOS 3.3; each one of ...

, operating system for the

Apple II The Apple II (stylized as ) is an 8-bit home computer and one of the world's first highly successful mass-produced microcomputer products. It was designed primarily by Steve Wozniak; Jerry Manock developed the design of Apple II's foam-mold ...

series from late 1978 through early 1983 * Apple ProDOS, name for both ProDOS 8 for the Apple II and ProDOS 16 for the Apple IIGS *

Atari DOS Atari DOS is the disk operating system used with the Atari 8-bit family of computers. Operating system extensions loaded into memory were required in order for an Atari computer to manage files stored on a disk drive. These extensions to ...

, for the

Atari 8-bit family The Atari 8-bit family is a series of 8-bit home computers introduced by Atari, Inc. in 1979 as the Atari 400 and Atari 800. The series was successively upgraded to Atari 1200XL , Atari 600XL, Atari 800XL, Atari 65XE, Atari 130XE, Atari 800XE ...

of home computers * Commodore DOS, for Commodore's 8-bit computers * Cromemco DOS (CDOS), a CP/M-like operating system * CSI-DOS, for the Soviet Elektronika BK computers * 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

PDP-11 The PDP-11 is a series of 16-bit minicomputers sold by Digital Equipment Corporation (DEC) from 1970 into the 1990s, one of a set of products in the Programmed Data Processor (PDP) series. In total, around 600,000 PDP-11s of all models were so ...

minicomputer *

Delta DOS Delta commonly refers to: * Delta (letter) (Δ or δ), a letter of the Greek alphabet * River delta, at a river mouth * D (NATO phonetic alphabet: "Delta") * Delta Air Lines, US * Delta variant of SARS-CoV-2 that causes COVID-19 Delta may also r ...

, third party option from Premier Microsystems for the Dragon 32/64 * DIP DOS, the operating system of the Atari Portfolio *

DOS/360 Disk Operating System/360, also DOS/360, or simply DOS, is the discontinued first member of a sequence of operating systems for IBM System/360, System/370 and later mainframes. It was announced by IBM on the last day of 1964, and it was first d ...

, 1966

IBM System/360 The IBM System/360 (S/360) is a family of mainframe computer systems that was announced by IBM on April 7, 1964, and delivered between 1965 and 1978. It was the first family of computers designed to cover both commercial and scientific applic ...

mainframe computer Disk Operating System * DOS XL, Atari 8-bit family DOS from Optimized Systems Software * DragonDOS, for the Dragon 32/64 *

GEMDOS GEM (for Graphics Environment Manager) is an operating environment released by Digital Research (DRI) in 1985 for use with the DOS operating system on Intel 8088 and Motorola 68000 microprocessors. GEM is known primarily as the graphical user i ...

, one of the components of the Atari TOS *

IS-DOS iS-DOS is a disk operating system (DOS) for Soviet/Russian ZX Spectrum clones. iS-DOS was developed in 1990 or 1991, by Iskra Soft, in Leningrad, Soviet Union, now Saint Petersburg, Russia. It handles floppy disks (double sided, double densit ...

, for Russian ZX Spectrum clones, developed in 1990 or 1991 * MasterDOS, replacement DOS for the

SAM Coupé Sam, SAM or variants may refer to: Places * Sam, Benin * Sam, Boulkiemdé, Burkina Faso * Sam, Bourzanga, Burkina Faso * Sam, Kongoussi, Burkina Faso * Sam, Iran * Sam, Teton County, Idaho, United States, a populated place People and fictiona ...

* MDOS, Myarc Disk Operating System for the Geneve 9640 * MSX-DOS, a cross between MS-DOS 1.0 and CP/M developed by Microsoft for the

MSX MSX is a standardized home computer architecture, announced by Microsoft and ASCII Corporation on June 16, 1983. It was initially conceived by Microsoft as a product for the Eastern sector, and jointly marketed by Kazuhiko Nishi, then vice-p ...

computer standard *

MyDOS Atari DOS is the disk operating system used with the Atari 8-bit family of computers. Operating system extensions loaded into memory were required in order for an Atari computer to manage files stored on a Disk storage, disk drive. These ex ...

, third-party Atari 8-bit family DOS * NewDos/80, Apparat's feature-rich alternative to TRSDOS for the

TRS-80 The TRS-80 Micro Computer System (TRS-80, later renamed the Model I to distinguish it from successors) is a desktop microcomputer launched in 1977 and sold by Tandy Corporation through their Radio Shack stores. The name is an abbreviation of ...

. *

Oric DOS Oric was the name used by UK-based Tangerine Computer Systems for a series of 6502-based home computers sold in the 1980s, primarily in Europe. With the success of the ZX Spectrum from Sinclair Research, Tangerine's backers suggested a hom ...

, for the Oric-1 home computer * PTDOS, for the 1970s

Sol-20 The Sol-20 was the first fully assembled microcomputer with a built-in keyboard and television output, what would later be known as a home computer. The design was a combination of an Intel 8080-based motherboard, a VDM-1 graphics card, the 3P+S ...

from Processor Technology * SAMDOS, original DOS for the

* Sinclair QDOS, for the Sinclair QL * RDOS, a real-time operating system released in 1972 for the Data General Nova and

Eclipse An eclipse is an astronomical event that occurs when an astronomical object or spacecraft is temporarily obscured, by passing into the shadow of another body or by having another body pass between it and the viewer. This alignment of three ce ...

minicomputers * SK*DOS, for Motorola 68000-based systems * SmartDOS, third-party Atari 8-bit family DOS * SpartaDOS, third-party Atari 8-bit family DOS * TOP-DOS, third-party Atari 8-bit family DOS * TR-DOS, for the

ZX Spectrum The ZX Spectrum () is an 8-bit home computer that was developed by Sinclair Research. It was released in the United Kingdom on 23 April 1982, and became Britain's best-selling microcomputer. Referred to during development as the ''ZX81 Colou ...

* TRSDOS, for the Tandy

line of 8-bit

Zilog Z80 The Z80 is an 8-bit computing, 8-bit microprocessor introduced by Zilog as the startup company's first product. The Z80 was conceived by Federico Faggin in late 1974 and developed by him and his 11 employees starting in early 1975. The first wor ...

microcomputers *

Xtal DOS A crystal or crystalline solid is a solid material whose constituents (such as atoms, molecules, or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions. In addition, macrosc ...

for the

Tatung Einstein The Tatung Einstein was an eight-bit home/personal computer produced by Taiwanese corporation Tatung, designed in Bradford, England at Tatung's research laboratories and assembled in Bridgnorth and Telford, England. It was aimed primarily at sm ...

References

{{DEFAULTSORT:List Of Dos Operating Systems D

MS-DOS / IBM PC DOS compatible systems

Other x86 disk operating systems with "DOS" in the name

Disk operating systems for other platforms

See also

References