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Chapter Profile
Chapter Profile
Chapter Profile
Chapter Profile
6 1 Working of a Computer
Input Devices
Processing Device
The Computer— Output Devices
An Overview
As you know, a computer system is made up of two types of parts—Hardware and Software.
The parts of a computer that we can see and touch are called Hardware.
A computer needs instructions to do anything. These step-by-step instructions are called
software.
WORKING OF A COMPUTER
A computer works on the IPO (Input-Process-Output) cycle. It receives input from the user
through input devices, processes the input using the CPU, and gives back the output using
output devices. This process is known as the IPO cycle.
Input devices Processing device Output devices
IPO Cycle
INPUT DEVICES
A computer accepts data and instructions from you through input devices. Data can be in
the form of numbers, text, sound or graphics.
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