keyboards, pointing devices, and Data-Entry devices. Wikiversity (18 June 2012). Introduction to Computers/Input Devices. Retrieved from http://en.wikiversity.org/wiki/Introduction_to_Computers/Peripherals#Bar-Code , http://en.wikipedia.org/wiki/Input_device Keyboard A logitech gaming keyboard. The keyboard is the most popular input device for a computer. It translates numbers, letters, symbols and control keys into signals that can be interpreted by the