Keyboards

Keyboards are the main input device in a computer.Keyboards consist of key's through which the user can input into the computer.Various types of keyboards with diffent number of input keys are avilable.

The keys on computer keyboards are often classified as follows:

alphanumeric keys -- letters and numbers

punctuation keys -- comma, period, semicolon, and so on.

special keys -- function keys, control keys, arrow keys, Caps Lock key, and so on.

Keyboards are mainly divided into two types