Explanation : CPU is the abbreviation for central processing
unit. The CPU is the brains of the computer
where most calculations take place. In terms
of computing power, the CPU is the most
important element of a computer system.
Central processing units have two primary
components;
(i) The arithmetic logic unit (ALU) is the CPU
component that performs the processor's
actual computations. Its circuitry
calculates the addition, subtraction,
multiplication and division equations in
the instructions the control unit passes
to it. The ALU also performs logical
operations that are essential to the control
structures that regulate software flow.
(ii) The control unit (CU) regulates the
processor's operation and the arithmetic
logic unit that actually crunches numbers
and compares values. However, these
two clusters of transistors still rely on
memory resources in the computer the
CPU powers in order to function.