9 Computer interface boards, computer chips, electrical circuit boards, computer hardware, computer monitors, computer operating programs, computer terminals, computer utility programs, computers, computer and instructional manuals sold as a unit, electric luminescent display panels, microcomputers, modems, video monitors, multiplexers, computer peripherals, printed circuits, semiconductor devices, telephones, electric interchangers, signal receivers, signal transceivers, cable carriers, global positioning system (GPS), analog-to-digital converters (ADC), cathode ray tubes (CRT).