Control unit (CU)

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How does a CPU work?

A control unit coordinates how data moves around a cpu. The control unit (CU) is a component of a computer's central processing unit (CPU) that directs operation of the processor. It tells the computer's memory, arithmetic/logic unit and input and output devices how to respond to a program's instructions.[1]

Control Unit

  • The control unit obtains data / instructions from memory
  • Interprets / decodes the instructions into commands / signals
  • Controls transfer of instructions and data in the CPU
  • Coordinates the parts of the CPU

Major parts of a CPU

These videos are truly superb to help you understand parts of a CPU, and how they work.


OutlineGive a brief account. the function of the control unit.

See Also