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Input and Output
Devices
3
Learning Outcomes
IPO Devices Input Devices
Processing Device Output Devices
Storage Devices
In this chapter, we’re going to learn about various devices that help us use
computers. Let’s start by understanding what each one does.
i + IPO DEVICES
A computer is made up of many parts. These parts are also known as IPO devices.
i + INPUT DEVICES
The devices that are used to enter data into the computer and give instuctions are
called input devices. Some of the commonly used input devices are:
Keyboard
A keyboard is an input device that is used to give
instructions to the computer by typing text and numbers.
It has buttons called keys.
Keyboard
Mouse
A mouse is an input device that sends instructions to the computer
with the click of a button. It is used to draw pictures and for selecting
Mouse objects on the computer.
Scanner
A scanner is an input device that is used to convert documents
or images from paper to the computer. It works like a photocopy
machine. Scanner
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Input and Output Devices

