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'''CP/M''' is an [[System software#Operating_Systems|operating system]] running on different computers with Intel 8080 and compatible CPUs. It was the most popular operating system for micro computers, before the 16 bit age started successfully with the IBM PC and MS-DOS. Most computer systems running CP/M were based on a [[Z80]] cpuCPU.

It was developed by [[Gary Kildall]] of [[Digital Research|Digital Research, Inc.]] as a privat private project from 1974 on, named '''''C'''ontrol '''P'''rogram/'''M'''onitor''. When becoming a it became commercial software in November 1977 it was renamed to '''''C'''ontrol '''P'''rogram for '''M'''icrocomputers''.

'''CP/M''' was shipped with the disk models of the Amstrad CPC and the [[DDI-1]] disc drive on one or two [[System Disk]]s.

'''MicroDOS''' (Microcomputer Disc Operating System) is a CP/M clone made in East Germany (GDR) for computers of the brand Kleincomputer (KC). It was available for the [[KC Compact]]. Unfortunately it is not 100% compatible to with CP/M by 100%.