Keyboard

A keyboard is an input device used for computers and its original modeling came from the type writer. In keyboards, arrangements of buttons which are also called keys, are used as electronic switches that create symbols that are displayed by a computer monitor. Different combinations of key arrangements are used to perform different tasks. Keyboards can produced both lettering and numbering, and computer commands. Combinations such as Control+Alt+Delete can be used to end a working computer process, shut down, or reboot the system. There are keyboards that are integrated to laptops, make contact through a USB port, or are wireless and require frequencies and a receiver to operate.