Keyboards; multifunction keyboards; computer keyboards; multifunction computer keyboards; computer keyboard keycaps; wireless keyboards; keypads; computer keypads; wireless keypads; computer peripheral devices; peripheral devices (computer -); wireless computer peripherals; trackballs [computer peripherals]; firmware for computer peripherals; mouse [computer peripheral]; computer mice; computer mouse; mouses for computers; wireless computer mice; touch panels; touch pads [electronic]; touch pads; display screens; visual display screens; input devices for computers; input modules; track ball input devices; add-on circuit boards; application-specific integrated circuits; integrated circuit modules; integrated circuit module; digital input/output [I/O] modules; prerecorded flash memory cards; electronic memory integrated circuit chips; firmware memory devices; wrist rest pads for keyboards.