instruction register


See under instruction cycle.

Read Also:

  • instruction set

    (n.) Also called a command set, the basic set of commands, or instructions, that a microprocessor understands. One of the principal characteristics that separates RISC from CISC microprocessors is the size of the instruction set — RISC microprocessors have relatively small instruction sets whereas CISC processors have relatively large instruction sets.

  • integer

    A whole number. The following are integers: 0 1 -125 144457 In contrast, the following are not integers: 5.34 -1.0 1.3E4 “string” The first three are floating-point numbers; the last is a character string. Integers, floating-point numbers, and character strings constitute the basic data types that most computers support. There are often different sizes of […]

  • integrated HDTV

    A high-definition television or display that has the HDTV tuner built into the set. It does not need a separate set-top box to receive over-the-air HDTV signals.

  • integrated

    (1) A popular computer buzzword that refers to two or more components merged together into a single system. For example, any software product that performs more than one task can be described as integrated. (2) Increasingly, the term integrated software is reserved for applications that combine word processing, database management, spreadsheet functions, and communications into […]

  • Integrated Circuit

    Another name for a chip, an integrated circuit (IC) is a small electronic device made out of a semiconductor material. The first integrated circuit was developed in the 1950s by Jack Kilby of Texas Instrumentsand Robert Noyce of Fairchild Semiconductor. Integrated circuits are used for a variety of devices, including microprocessors, audio and video equipment, […]


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