What is Keyboard?

What is Keyboard?

A computer keyboard is a typewriter-style device^[1] which uses an arrangement of buttons or keys to act as mechanical levers or electronic switches. Following the decline of punch cards and paper tape, interaction via teleprinter-style keyboards became the main input method for computers.

Keyboard keys (buttons) typically have characters engraved or printed on them,^{[2][better source needed]} and each press of a key typically corresponds to a single written symbol. However, producing some symbols may require pressing and holding several keys simultaneously or in sequence.^[3] While most keyboard keys produce letters, numbers or signs (characters), other keys or simultaneous key presses can produce actions or execute computer commands.

A computer keyboard helps people to type a word. Its very helpful for everyone.

What is the benefit of Keyboard?

Keyboard can help person to understand the words. and understand person to type the words . In normal usage, the keyboard is used as a text entry interface for typing text and numbers into a word processor, text editor or any other program. In a modern computer, the interpretation of key presses is generally left to the software. A computer keyboard distinguishes each physical key from every other key and reports all key presses to the controlling software. Keyboards are also used for computer gaming — either regular keyboards or keyboards with special gaming features, which can expedite frequently used keystroke combinations.

Keyboards Pictures

Fact of computer keyboard

A computer keyboard is an input device that allows a person to enter letters, numbers, and other symbols (these are called characters) into a computer. It is one of the most used input devices for computers. Using a keyboard to enter lots of data is called typing.

A keyboard contains many mechanical switches or push-buttons called "keys". When one of these are pushed, an electrical circuit is closed, and the keyboard sends a signal to the computer that tells it what letter, number or symbol it would like to be shown on the screen. The computer's CPU then shows the character on the screen, usually at the place where the cursor is. Besides entering characters, computer keyboards also have keys that change the symbol (such as shift or caps lock) or gives the computer special commands (such as the arrow keys, CTRL and ALT). These keys depend on the operating system which the keyboard is being used on.

A keyboard can be joined to a computer using a wire, but can also be wireless (like those that use Bluetooth). Today, most keyboards that use wires connect to a USB port on the computer, but older ones use a type of port called PS/2, which is slower than USB.

Thank You