Strange Interesting Facts about Keyboard or Historical View

     Keyboard is an arrangement of buttons or keys to act as mechanical levers or electronic switches and its style resembles to a typewriter keyboard. This device is known as input device in operating of several electronic machines or devices. In computers is also used as a main input device in its operation.

There are a lot electronic machines in which keyboard plays a main human or direct input to send the instruction to the machines to gets desired results.

Following the debility of punch cards and paper tape, interaction via teleprinter-style keyboards became the main input device for computers.

     Despite the development of alternative input devices, such as the mouse, touchscreen, pen devices, character recognition and voice recognition, still the keyboard remains the most commonly used and most useful, vital  and versatile device used for direct or human input into computers or other electronic and IT devices.

     Generally, a keyboard has characters incised, engraved or printed on the keys and each press of a key usually corresponds to a single written symbol. However, to produce some symbols requires pressing and holding several keys simultaneously or in sequence. While most keyboard keys produce alphabets or letters, numbers or signs or characters, other keys or simultaneous, concurrent, synchronized (combination of keys) pressing of keys can produce actions or computer commands or function. These keys are known as shortcut keys to process the instructions for obtaining or getting desired results. In a set of functions keys are also present in keyboards i.e F1 to F12 for different functions. These keys are used to run the commands to save time and facilitate the human computer operators and accelerate the task and work.

     In usual usage, the keyboard is used for typing of text and numbers into a word processor, text editor or other programs which are used for desired requirements. In an advance or highly developed modern computer, the interpretation of key presses is generally left to the software. A computer keyboard distinguishes each physical key from every other and instructs all key presses to the controlling software.

     Keyboards are used for computer gaming, either with regular keyboards or by using keyboards with distinct or special gaming features, which can accelerate frequently used keystroke combinations. A keyboard is also used to give commands to the operating system of a computer, such as Windows' Control-Alt-Delete combination, which brings up a task window or shuts down the machine. Keyboards are the only way to enter commands on a command-line interface.