Input Devices || Computer knowledge
Computer Input Devices:
Input
devices:
Input devices are used to provide data and instructions to the computer from the user is called input devices.
Some important devices are:
1.
Mouse:
m
Mouse
is an input device that controls the movement of cursor on LCD or Monitor. A
mouse will have two buttons on its top. The left button is most useful button.
There will be a wheel between the left and right buttons. This wheel enables us
to smoothly scroll through screen of information. As we move the mouse any
point on screen.
2.
Keyboard:
The
keyboard is used for typing text into computer. It is also known as standard
input device. A computer keyboard is similar of a Typewriter with additional keys in keyboard. The key board is
arranged in five group.
1. Alphanumeric 2. Modifier
keys 3. Numeric keys 4. Functional keys
5.
Cursor movement keys.
3.
Scanner:
It is an input device can be read text or illustrations printed on paper into digital form. There are two types of scanner 1. Optical & 2. MICR.
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