Functional Unit of CPU

What is a CPU? A beginner's guide to processors | Trusted Reviews.

FUNCTIONAL UNIT OF CPU. Functional units of a computer system are parts of the CPU (Central Processing Unit) that performs the operations and calculations called for by the computer program..

Arithmetic and Logic Unit (ALU). An arithmetic-logic unit is the part of a central processing unit that carries out arithmetic and logic operations on the operands in computer instruction words..

Control Unit(CU). A control unit (CU) handles all processor control signals. It directs all input and output flow, fetches code for instructions from microprograms and directs other units and models by providing control and timing signals. A CU component is considered the processor brain because it issues orders to just about everything and ensures correct instruction execution..

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