control unit

noun Computers.

the part of a CPU that interprets the instructions in programs and directs the operation of the entire system.

controller (def. 5).

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Origin:
1960–65

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Control unit is always a great word to know.

So is cursor. Does it mean:

a storage and retrieval technique, used mainly for data, in which the first item stored is also the first item retrieved

a movable, sometimes blinking, symbol that indicates the position on a CRT where the next character entered from the keyboard will appear

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Computing Dictionary

control unit definition

1. The part of a CPU that sends control signals to other components to cause them to execute the machine cycle - fetch, decode, execute, store.
2. Any device that controls the I/O operations of one or more peripheral devices, e.g. a disk controller.
(2008-05-21)

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