CP/M-86

CP/M-86
	A screenshot of CP/M-86 for the IBM PC/XT/AT Version 1.1
Developer	Digital Research, Inc. / Gary Kildall / Kathryn Strutynski
OS family	CP/M
Working state	Historic
Source model	Originally closed source, now open source
Initial release	November 1981
Available in	English
Platforms	Intel 8086
Kernel type	Monolithic kernel
Default; user interface	Command-line interface
License	Originally proprietary, now BSD-like[citation needed]
Preceded by	(CP/M-80 2.2)
Succeeded by	Concurrent CP/M-86 3.0

CP/M-86 is a discontinued version of the CP/M operating system that Digital Research (DR) made for the Intel 8086 and Intel 8088. The system commands are the same as in CP/M-80. Executable files used the relocatable .CMD file format.^{[nb 1]} Digital Research also produced a multi-user multitasking operating system compatible with CP/M-86, MP/M-86, which later evolved into Concurrent CP/M-86. When an emulator was added to provide PC DOS compatibility, the system was renamed Concurrent DOS, which later became Multiuser DOS, of which REAL/32 is the latest incarnation. The FlexOS, DOS Plus, and DR DOS families of operating systems started as derivations of Concurrent DOS as well.

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[1]

[2]

[nb 1]