submit urlsubmit rss feedadd directory

article

DOS commonly refers to the family of closely related operating systems which dominated the IBM PC compatible market between 1981 and 1995 (or until about 2000, if Windows versions 95 and 98 are included) : PC-DOS, MS-DOS, FreeDOS, DR-DOS, Novell-DOS, OpenDOS, PTS-DOS, ROM-DOS and several others. Of these, MS-DOS from Microsoft was the most widely used. These operating systems ran on IBM PC type hardware using the Intel x86 CPUs or their compatible cousins from other makers. MS-DOS is still common today and was the foundation for many of Microsoft's operating systems (from Windows V1.00 through Windows Me). MS-DOS was later abandoned as the foundation for their operating systems.

History


MS-DOS (and the IBM PC-DOS which was licensed therefrom), and its predecessor, QDOS, was an imitation of CP/M (Control Program / (for) Microcomputers) — which was the dominant operating system for 8-bit Intel 8080 and Zilog Z80 based microcomputers.

It was first developed at Seattle Computer Products by Tim Patterson as a variant of CP/M-80 from Digital Research, but intended as an internal product for testing SCP's new 8086 CPU card for the S-100 bus. It did not run on the 8080 (or compatible) CPU needed for CP/M-80. It was called QDOS, among several other names. Microsoft licensed it from SCP, made changes and licensed the result to IBM (sold as PC-DOS) for its new 'PC' using the 8088 CPU (internally the same as the 8086), and to many other hardware manufacturers. In the later case it was sold as MS-DOS.

More on [ DOS ]


directory of related categories

 

 

 
directory of related topics

DOS and Windows :: Intel x86 Architecture
DOS :: x86

 
DOS RSS feed
DOS - Twitter Search

@alpacavelha primeira missão como freira: rezar pela conversão dos que tem mal gosto pra perfume. ;)
veronica_teles (Verônica ) Sat, 07 Nov 2009 20:04:29 -0000
@alpacavelha primeira missão como freira: rezar pela conversão dos que tem mal gosto pra perfume. ;)
Hoje pintei o quarto dos meus filhos, senti uma falta tremenda das máscaras e do undo do photoshop.
letsvamos (Danilo) Sat, 07 Nov 2009 20:04:27 -0000
Hoje pintei o quarto dos meus filhos, senti uma falta tremenda das máscaras e do undo do photoshop.
Yo no termino de entenderlo, aunque le veo potencial RT @erasmoh: @SpikeMagnum y lo que se pasará por el forro a los dos será el Wave...
SpikeMagnum (Alex Polo) Sat, 07 Nov 2009 20:04:26 -0000
Yo no termino de entenderlo, aunque le veo potencial RT @erasmoh: @SpikeMagnum y lo que se pasará por el forro a los dos será el Wave...
@babi_borges pf, mais de metade dos times do brasil compram a cbf mais que o flamengo. vasco, fluminense, sao paulo...
thiiagocorrea (Thiago Corrêa) Sat, 07 Nov 2009 20:04:23 -0000
@babi_borges pf, mais de metade dos times do brasil compram a cbf mais que o flamengo. vasco, fluminense, sao paulo...
minha mãe nao ta deixando eu ir no Arqui ver o jogo dos meninos D: -N
isaoliveiraf (Isabella Oliveira F.) Sat, 07 Nov 2009 20:04:20 -0000
minha mãe nao ta deixando eu ir no Arqui ver o jogo dos meninos D: -N
@ProfMariaRachel Parabéns Prof Maria Rachel, tanto pelo seu aniversário, quanto pela sua luta em defesa dos indígenas.
allanazsereia (ALLAN A. Z. SEREIA) Sat, 07 Nov 2009 20:04:18 -0000
@ProfMariaRachel Parabéns Prof Maria Rachel, tanto pelo seu aniversário, quanto pela sua luta em defesa dos indígenas.

 
Subscribe to DOS RSS feed

directory of related sites

Classic DOS Games - Reviews and downloads of classic games. Attempts to archive complete version history of each game, with source code.
Meta Description: [ An online community that promotes and preserves the legacy of DOS games by archiving free downloads of every version of classic games, with source code if possible; provides ordering information for games that are still sold; and works with copyright holders to liberate discontinued classics. ]

DOS Game Zone - Collection of freeware, shareware, and trialware.
Meta Description: [ DOS Games & Abandonware. Download DOS games, cheats codes, DOS Game Music and so much more only at DOS Gamer. ]

DOS Games - Over 400 shareware and freeware games organized into fifteen categories. Also available are associated utilities and a message board to find old games, get games working or discuss DOS games.
Meta Description: [ Free games: Over 400 DOS freeware/shareware games, with downloadable games, reviews, screenshots, links, free email, and much more! Action, arcade, classic, puzzle, shooting, 3D ... only the best! All free! ]

DOS Games Archive - Large collection of shareware and freeware DOS games, all available for download. The games can be organized alphabetically, by genre and by version. Also includes an online DOS game shop.
Meta Description: [ Ever wanted to play your favorite computer games again? Download the best MS-DOS games for free from this site (shareware and freeware) ]

DOS Games Online - Downloads and reviews of over 400 freeware and shareware DOS games.
Meta Description: [ Download over 550 free games for the DOS platform on DOSGamesOnline.com ]

Lon Matero's Apogee Page - News, reviews and downloads of games published under the Apogee title.

Old School DOS Games - Games available for download. Also offers information on DOS emulators.
Meta Description: [ Old school DOS games for free download with reviews ]

Wally4000 - Focuses on DOS games, and is the home of the DOS Games Windows XP Compatibility List. Also includes some Mac and Windows games.
Meta Description: [ Shareware\Freeware\Demoware Games to download . ]

DOS related videos
Naxxramax Wildcats
Next Video
DOS related videos

 

HOMEADVERTISINGABOUT US

articlesartsbusinesscomputersgameshealthhospitalshomekids & teensnewsmobilephysiciansrecreationreferenceregionalscienceshoppingsocietysportsworld


Submit a Site About Become an Editor