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CP/M (Control Program for Microcomputers[3]) was a mass-market operating system created for Intel 8080/85 based microcomputers by Gary Kildall of Digital Research, Inc. The Digital Research sold version supported the Intel 8080 Development System. CP/M (Control Program for Microcomputers) was a mass-market operating system created for Intel 8080/85 based microcomputers by Gary Kildall of Digital Research, Inc. The Digital Research sold version supported the Intel 8080 Development System.