Abstract: An electro-optical input device for computers or electronic games which uses electro-optical elements to sense input from a user. A user actuation element, such as a directional control pad or a joystick is pivotally disposed on a printed circuit board. Two photoemitters are mounted on the printed circuit board, at or near the circumference of the footprint described by the user actuation element. The photoemitters are positioned 90.degree. apart, one along the North-South axis of flit of the actuation element, and one along the East-West axis. At least one photodetector is mounted to the base at or near the pivot point of the actuation element so that it can receive light from both of the photoemitters. A skirt or flange depends annularly from the actuation element, at or near its periphery, positioned between the photodetector and the photoemitters.

Abstract: The present invention relates to an attendance time recorder having a printing device for printing times on a data medium such as a time card. The arrangement includes a printing head adapted to support printing types and a plurality of adjacently disposed number wheels of annular form with internal teeth for indexing by engagement with an indexing pawl and retaining means for the data medium. The retaining means and the printing head are adjustable according to a program and a drive is provided for effecting linear sliding movement of the printing head relative to the retaining means.