processor control unit
1Control unit — A control unit in general is a central (or sometimes distributed but clearly distinguishable) part of the machinery that controls its operation, provided that a piece of machinery is complex and organized enough to contain any such unit. One… …
2control unit — Computers. 1. the part of a CPU that interprets the instructions in programs and directs the operation of the entire system. 2. controller (def. 5). [1960 65] * * * control unit noun (computing) The part of a central processor which interprets… …
3control unit — (CU) 1. Central processor of a telephone switching device. 2. A device that concentrates data from several terminals onto a single communications line. Also called cluster controller …
4control register — noun (computing) One which stores a single control instruction in the control unit of a central processor • • • Main Entry: ↑control …
5Processor register — In computer architecture, a processor register is a small amount of storage available as part of a CPU or other digital processor. Such registers are (typically) addressed by mechanisms other than main memory and can be accessed more quickly.… …
6Unit Control Block — In IBM mainframe operating systems from the z/OS line, a Unit Control Block (UCB) is a memory structure, or a control block , that describes any single input/output peripheral device, or a unit , to the operating system.A similar concept in Unix… …
7Control store — A control store is the part of a CPU s control unit that stores the CPU s microprogram. It is usually accessed by a microsequencer. Early control stores were implemented as a diode array accessed via address decoders, a form of read only memory.… …
8Control Data Corporation — (CDC) was a supercomputer firm. For most of the 1960s, it built the fastest computers in the world by far, only losing that crown in the 1970s after Seymour Cray left the company to found Cray Research, Inc. (CRI). CDC was one of the nine major… …
9Control register — A control register is a processor register which changes or controls the general behavior of a CPU or other digital device. Common tasks performed by control registers include interrupt control, switching the addressing mode, paging control, and… …
10Control-Alt-Delete — This article is about the keyboard combination. For a list of keyboard shortcuts, see Table of keyboard shortcuts. For other uses, see Control Alt Delete (disambiguation). The keys Control Alt Delete highlighted on a QWERTY keyboard. Control Alt… …
