- 1. Keyboard
The keyboard is the most important input device of the computer. The computer and its other peripherals are mostly used with the help of a keyboard only. All commands are given through the keyboard. The keyboard of computer is similar in may ways to keyboard of typewriter except that a computer’s keyboard has many more keys, more capable and cad do several more functions. Keyboards are mainly of three types (on the basis of number of keys). 84, 87,101 keys keyboard.
The standard IBM – PC keyboard cab be divided into three general areas:
(i) Typewriter area: Having the standard set of alp0habet letters and number keys
Fig .1