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When we hear a question with our ear the input is received by the brain and the
brain processes it. It then orders the mouth to speak the final answer. Therefore,
our ears act as an input unit, the brain acts as a processing unit and the mouth
acts as an output unit.
IPO DEVICES
Just as bees collect nectar to
A computer is made up of many parts.
make honey, computers gather
These parts are also known as devices. information to help us solve
These parts work together to help us do problems and learn new things.
different things, like playing games or
drawing pictures.
Input Devices
The devices that are used to enter data into a computer are known as input devices.
The most commonly used input devices are keyboard, mouse and microphone.
Mouse Keyboard Microphone
Processing Device
The device that works on the input is called a
processing device. CPU is the main processing
device. CPU stands for Central Processing Unit. It
works like the brain of a computer. CPU is fixed inside
the CPU box/cabinet.
Output Devices CPU
CPU box/cabinet
The devices which help us to get the results are called
output devices. The most commonly used output devices are monitor, speakers,
headphones and printer.
Monitor Speakers Headphones Printer
22 Modular (Ver. 2.1)-II

