COMPUTER HARDWARE; MODEMS; LASER PRINTERS; AMUSEMENT APPARATUS ADAPTED FOR USE WITH EXTERNAL DISPLAY SCREENS; CONNECTORS FOR OPTICAL TRANSMISSION CABLES; CONNECTORS FOR OPTICAL FIBERS; RECORDED COMPUTER SOFTWARE, COUPLERS AND INTERFACES USED FOR AUDIO, VIDEO, VOICE AND IMAGE TRANSMISSION; ADAPTERS USED FOR MUSIC, VIDEO, VOICE AND IMAGE TRANSMISSION; DIGITAL MEDIA RECEIVERS; VIDEO TELEPHONES; ELECTRICITY CELL SWITCHES; ELECTRICITY PLUGS; TRANSCEIVERS FOR DATA TRANSMISSION; SIGNAL CONVERTERS; CONVERTERS USED FOR INTERNET; OPTICAL FIBER ADAPTERS, OPTICAL FIBER REPEATERS; FIBER TRANSCEIVERS; OPTICAL TRANSMITTERS AND RECEIVERS FOR AUDIO; OPTICAL TRANSMITTERS AND RECEIVERS FOR VIDEO; OPTICAL FIBERS