Computers, computer peripheral devices, computer monitors, plasma displays, CRT displays, LCD projectors, printers, optical disk drives, MO drives, CD drives, DVD drives, video tape recorders, television receivers, television apparatus, floppy disks, compact discs, digital video discs, video tapes, cables, projection apparatus, liquid crystal display projectors, amusement apparatus adapted for use with television receivers only, audiovisual teaching apparatus, cash registers, central processing units, apparatus for games adapted for use with television receivers only, electronic indicators, intercommunication apparatus, electric monitoring apparatus, audio receivers and video receivers, luminous or mechanical road signs, transmitters of electronic signals, telecommunication transmitting sets, display monitors, video recorders, word processors, tuners, speakers, remote controllers, and aerials, parts, fittings and accessories therefor