Computer and control programs stored on magnetic data carriers, perforated cards, perforated rolls; magnetic encoders; compact discs; computers; interfaces; computer operating programs; peripherals adapted for use with computers; computer programs; computer software; computer keyboards; floppy discs; floppy disk drives; data processing apparatus; electronic publications, downloadable; electronic pens; laptop computers; loudspeakers; magnetic tape units; magnetic data carriers; mice; mouse pad...