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Chapter Profile
When we hear a question with our ear the
input is received by the brain and the brain Just as bees collect nectar
to make honey, computers
processes it. It then orders the mouth to gather information to help us
speak the final answer. Therefore, our ears solve problems and learn
act as an input unit, the brain acts as a new things.
processing unit and the mouth acts as an
output unit.
IPO DEVICES
A computer is made up of many parts. These parts are also known as devices.
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 and mouse.
Exercise
A. Tick ( ) the correct option.
1. Which of the following is the brain of the computer?
a. b.
Keyboard Mouse
Processing Device c. d.
The device that works on the input is called processing
device. CPU is the main processing device. CPU stands 2. Which of the following is an input device?
for Central Processing Unit. It works like the brain of
a computer. CPU is fixed inside the CPU box/cabinet. a. b.
Output Devices
c. d.
The devices which help us to get the results are CPU
called output devices. The most commonly used CPU box/cabinet
output devices are monitor, speakers, headphones and printer. 3. Which of the following is a processing device?
a. b.
c. d.
Monitor Speakers Headphones Printer
22 Modular (Ver. 4.0)-II

