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{{#invoke:Hatnote|hatnote}} {{#invoke:redirect hatnote|redirect}} {{ safesubst:#invoke:Unsubst||date=__DATE__|$B= {{#invoke:Infobox|infobox}} }} CP/M, short for Control Program for Microcomputers,<ref>{{#invoke:citation/CS1|citation |CitationClass=book }}</ref> was a mass-market operating system created for Intel 8080/85-based microcomputers by Gary Kildall of Digital Research, Inc. Initially confined to single-tasking on 8-bit processors and no more than 64 kilobytes of memory, later versions of CP/M added multi-user variations and were migrated to 16-bit processors.

The combination of CP/M and S-100 bus computers loosely patterned on the MITS Altair was an early industry standard for microcomputers, and this computer platform was widely used in business through the late 1970s and into the mid-1980s.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> By greatly reducing the amount of programming required to install an application on a new manufacturer's computer, CP/M increased the market size for both hardware and software.<ref name = "InfoWorld May 1981">{{#invoke:Citation/CS1|citation |CitationClass=journal }}</ref><ref name = "InfoWorld July 1982">{{#invoke:Citation/CS1|citation |CitationClass=journal }}</ref> The advent of (comparatively) low-cost microcomputers running CP/M was an important driver of software innovation as independent programmers and hackers bought them and shared their creations in user groups.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> CP/M was displaced by MS-DOS soon after the 1982 introduction of the IBM PC.


CP/M sections
Intro  Hardware model  Components of the operating system  History  Legacy  See also  References   Further reading   External links  

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