MP/M
Discontinued family of computer operating systems / From Wikipedia, the free encyclopedia
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MP/M (Multi-Programming Monitor Control Program[8]) is a discontinued multi-user version of the CP/M operating system, created by Digital Research developer Tom Rolander in 1979.[1][7][8][9][2][3][4] It allowed multiple users to connect to a single computer, each using a separate terminal.
Developer | Digital Research, Inc. / Tom Rolander,[1][2][3][4] Gary Kildall, Frank Holsworth[5][6] |
---|---|
OS family | CP/M |
Working state | Discontinued |
Source model | Originally closed source, since open sourced |
Initial release | 1979; 45 years ago (1979)[7][8] |
Latest release | 2.1 / 1982; 42 years ago (1982) |
Available in | English |
Platforms | 8080, 8085, Z80, 8086, 80286 |
Kernel type | Monolithic kernel |
Default user interface | Command-line interface |
License | Originally proprietary, now BSD-like |
Preceded by | CP/M, CP/M-86 |
Succeeded by | Concurrent CP/M, Concurrent CP/M-86 |
Official website | www |
MP/M was a fairly advanced operating system for its era, at least on microcomputers. It included a priority-scheduled multitasking kernel (before such a name was used, the kernel was referred to as the nucleus) with memory protection, concurrent input/output (XIOS) and support for spooling and queueing. It also allowed for each user to run multiple programs, and switch between them.