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Control program

operating system
(CP) The component of IBM’s Virtual Machine (VM) that provides “guest support” for operating systems that run on IBM mainframe compatible processors. Cp does this by providing a seamless emulation of privileged functions in the problem program environment.


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  • Control program for microcomputers

    operating system (CP/M) An early microcomputer operating system written by Gary Kildall of Digital Research for 8080 and Zilog Z80-based 8-bit computers. CP/M was very popular in the late 1970s but was virtually wiped out by MS-DOS after the release of the IBM PC in 1981. Many of CP/M’s features and conventions strongly resemble those […]

  • Control-q

    character (Or XON, DC1, Device Control 1) The character with ASCII code 17, used in software handshaking to resume output after a previous control-S. [Jargon File] (1996-06-28)

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    noun 1. a small rocket engine used to make corrections in the flight path of spacecraft or missiles.

  • Control-rod

    noun 1. a neutron-absorbing material, as boron or cadmium, in the shape of a rod or other configuration, that can be moved into or out of the core of a nuclear reactor to regulate the rate of fission. noun 1. one of a number of rods or tubes containing a neutron absorber, such as boron, […]

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