PCT No. PCT/US90/06831 Sec. 371 Date Jul. 29, 1992 Sec. 102(e) Date Jul. 29, 1992 PCT Filed Nov. 29, 1990 PCT Pub. No. WO92/09996 PCT Pub. Date Jun. 11, 1992.A sensor device is placed either underneath a key cap of a key on a keyboard or in between two keys on a keyboard so that cursor movement may be carried out from the keyboard itself. If the sensor device is placed underneath a key cap, then the key cap is a manual cursor controller. If, on the other hand, the sensor device is placed in between two keys, a joystick is used as a manual cursor controller.