A computer keyboard, although one of the most essential peripherals for any computer user, is often known by different names. There are several synonyms for the term "keyboard" which are commonly used to refer to this device. Some of the most popular synonyms for a computer keyboard include a computer keyset, typing pad, and input device. Other commonly used synonyms include computer keypad, keyboard controller, and QWERTY keyboard. The term "keyboard" has even been used interchangeably with "typing device" and "keypad". No matter what you call it, the function of the keyboard is to input data into a computer or other electronic device.