Page 10 - TP_iPlus_V2.1_Class2
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i + WORKING OF A COMPUTER
Understand this example,
Input Process Output
2, 3, + 2 + 3 5
Numbers, Addition Result
Instruction
Computers work on the Input-Process-Output cycle, also known as the IPO cycle.
INPUT PROCESS OUTPUT
You have seen that a computer works on the principle of Input, Process and Output.
Let us learn more about these in detail.
Input
Input means giving instructions to the computer in the form of numbers, letters or
symbols. We give input to a computer through input devices. Keyboard and mouse
are examples of input devices.
Keyboard Mouse
Process
After receiving the input, the computer performs action on it with the help of the
Central Processing Unit (CPU). It is known as the brain of the computer. It performs
all the calculations.
CPU Box/Cabinet CPU
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iPlus (Ver. 2.1)-II

