FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -The computer keyboard is used to enter text information into the computer, as when you type the contents of a report. The keyboard can also be used to type commands directing the computer to perform certain actions.

Detailed explanation-2: -First, a switch beneath the key closes, and current flows into a small chip in a keyboard. Each key has a scan code number, which corresponds to its position on the keyboard. The keyboard transmits this number as binary data to the computer’s CPU.

Detailed explanation-3: -When you press a key, it presses a switch, completing the circuit and allowing a tiny amount of current to flow through. The mechanical action of the switch causes some vibration, called bounce, which the processor filters out.

Detailed explanation-4: -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.