Keyboard

The keyboard is an input device that lets you type information into your computer. It basically consists of switches that, when pressed, send a code to the computer that corresponds to the character pressed. The basic components of a keyboard are the array of switches and a chip in the keyboard that continually scans for any keys pressed. This chip also sends the corresponding code to the computer depending upon the key presses. Keyboards are classified according to the technology that is used to construct the keys, like membrane switches or mechanical switches, and also according to the number of keys it contains. The keyboard connects to the PS/2 port at the back of your computer or even to the USB port as seen in the newer keyboards.