Adapter plugs; Cable television converters; Computer hardware and peripherals; Computer hardware for communicating audio, video and data between computers via a global computer network, wide-area computer networks, and peer-to-peer computer networks; Computer network adapters; Computer network adapters, switches, routers and hubs; Computers and computer hardware; Frames for attachment to computer monitors; Power adapters for computers; Power wires; USB hubs; X-Y plotters; Dust protective masks