Page 9 - Digital Age - 3

Process
Process is the action performed on data to convert it into meaningful information. The
processing of data and instructions in a computer is done by processing devices such
as the Central Processing Unit (CPU).

Output

Output is the result produced by the computer after processing the data. It can be in
different forms such as text, image, audio, or video.

The computer provides output to the user through devices called Output devices.
Examples of output devices are monitor, printer, and speakers.

Monitor Printer Speakers

CENTRAL PROCESSING UNIT (CPU)

The CPU is a small electronic chip fixed inside the CPU box. It is
placed in a slot on a large circuit board called Motherboard. CPU
is called the ‘Brain’ of the computer. It not only carries out all

calculations and computations, but also controls the computer’s
overall functioning. It receives data from an input device,
processes it according to the given instructions, and sends it to
an output device.

Knowledge Discovery Subject Enrichment

The CPU chip is also called the microprocessor due to its small size. CPUs comes in different
models which differ in their computational power.

The CPU is further divided into three units. These are:

1. ALU (Arithmetic Logical Unit)

The Arithmetic Logical Unit is the ‘Brain’ of the CPU. It performs all arithmetic
calculations and logical operations on the data. The ALU performs the job of
converting data into information.

7