Computing Keyboard

In computer, a keyboard is an input device, partially modeled after the typewriter keyboard, which uses an arrangement of buttons, to act as mechanical levers or electronic switches. A keyboard typically has characters engraved or printedon the keys and each press of a key typically corresponds to a single written symbol. However, to produce some symbols requires pressing and holding several keys simultaneously or in sequence. While most keyboard buttonsproduce letters, numbers or signs (characters), other keys presses can produce actions or computer commands.
In normal usage, the keyboard is used to type text and numbers into a word processor, text editor or other program. In a latest computer, the interpretation of keypresses is generally left to the software. A computer keyboard distinguishes each physical key from every other and reports all keypresses to the controlling software. Keyboards are also used for computer games, either with regular keyboards or by using keyboards with special gaming features, which can expedite frequently used keystroke combinations. A keyboard is also used to give commands to the operating system of a computer.