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FIIG:  A31700

Entry Date:  Apr-01-1974

Concept:  2

Status:  A

Applicability:  B

Type:  0

Definition:  A control which is an essential part of the central processing unit of a computer. It controls the other basic hardware units in such a manner that all operations are conducted in the correct time and logic sequence. It also prevents the introduction of a new task prior to completion of the task in process. The control comprises an instruction counter, an instruction and index register and comparator.

Basic INC:  70528

Basic Name:  CONTROL

Description:  1. A device used to govern a machine or mechanism in operation. Excludes: Governor and Regulator. 2. (Electrical/Electronic) A component which governs the operation of another component or grouping of components. Excludes: Control (1) and Controller (1). Do not use for such items as switches, circuit breakers, regulators, relays, rheostats and the like which are used without the addition of other parts to accomplish this function.