Page 15 - Computer - 3

2 Hardware and Software
Hardware and Software

Pre-Processing

• Hardware • Software
– Input Devices – System Software
– Output Devices – Application Software

– Processing Devices
– Storage Devices

A computer is an electronic machine. It works on the basis of IPO cycle and processes
input data to produce the desired output. It is made of different parts that help in

input, process, and output operations. These parts are called Hardware. But hardware
cannot do anything on its own. It needs instructions to perform actions. Software is
the set of instructions that make it work.

Hardware and software combined make a complete computer system. Without any
one of these, a computer cannot produce the desired results. Let us learn more

about these.

HARDWARE
Hardware refers to all the parts of a computer that can be seen or touched. These
parts help in providing input, processing, and displaying the output. Hardware can

be of two types: Monitor

External Hardware CPU
External hardware refers to parts of computer

that connect to the computer through wires Speakers
from the outside. Some of the common external

hardware devices are the monitor, keyboard, Printer Mouse
mouse, printer, and speakers. External hardware
connects to the computer through connectors

called ports. Keyboard
External hardware

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