Measuring, signalling, checking [supervision] and teaching apparatus and instruments; computers; monitors; memory devices for use with data processing apparatus and computer memory devices; computer peripheral devices; couplers [data processing equipment]; computer programs, databases; interfaces for computers; modems; scanners [data processing equipment]; coin-operated gaming, commercial and musical apparatus; apparatus for recording, transmission, reproduction of text, sound or images, including peripheral equipment for computers; magnetic and optical data carriers, including those containing recorded information, video and audio recordings; video cassettes; audio cassettes; floppy disks; compact discs [audio-video]; magnetic head cleaning apparatus of recording or reproducing devices; integrated circuits; copying machines and machines (photocopiers, electrostatic and thermocopying)