Keyboard with mouse and touchpad-enabled keycaps with multi-touch function

PURPOSE: A keyboard which a touch pad with a mouse / multi touch function is integrated into a key cap is provided to make reduce anatomical excessiveness pressed to a hand by forming the touch pad which can proceed the mouse / multi touch function on the keyboard. CONSTITUTION: A surface of two more key caps which is continuous forms touch pads(110,120). Movement of a key input tool pressed on the touch pad is detected, and then a mouse or a multi-touch operation is performed. The key input tool is a finger. If the finger moves in the state touching the surface of the key caps, a touch pad mode for the mouse or a multi-touch input is realized.