SSC MTS EXAM

Detailed explanation-1: -The keyboard is an input device that allows you to enter letters, numbers and symbols into your computer. The keyboard keys include the alphanumeric keys (letters and numbers), numeric keypad (may not be available on netbooks/laptops), special function keys, mouse cursor moving keys, and status lights. 1.

Detailed explanation-2: -Alphanumeric keys: These are used for typing letters, numbers and notations into the computer. The various keys in the alphanumeric keys are: Letter keys: The letter keys (A-Z) work like the typewriter. When the letter keys are pressed alone, the lower case type appear on the screen.

Detailed explanation-3: -Because they use the qwerty pattern originally developed for mechanical type-writers. The logic of the qwerty layout was based on letter usage in English rather than letter postion in the alphabet.