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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:

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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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