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Take Off 21 st #Critical Thinking
Century
Skills #Technology Literacy
Name the marked parts of the computer.
Now you know that a computer works on the IPO cycle. To follow this IPO cycle it uses
some devices. Let us learn about them in this chapter.
INPUT DEVICES
The devices that are used to give commands or instructions to the computer and tell
the computer what to do are called input devices. Let us study about some of them.
Keyboard
Keyboard is an input device that is used
to give instructions to the computer by
typing text and numbers. We type letters,
numbers and symbols using a keyboard.
Mouse
Mouse is an input device that sends instructions to the computer with the click
of a button. It is used to draw pictures and select objects on the computer.
#IPO Devices 29

