computer hardware, namely computers, computer peripherals, printers, terminals, monitors, keyboards, mouse, light pens, bar code readers, touch panels, switching power supplies, circuit boards, add-on boards, modems; computer networking hardware and software, namely interface cards, operating system software, multiplexers, hubs, routers, bridges, and gateway and file server software; integrated circuits; disk drives; computer memory and data storage devices; data and voice processors; computer software, namely system BIOS and set-up programs, operating system software, programs for controlling keyboards, disk cache drivers, CD-ROM disk drivers, systems configurations utilities, backup utilities, automatic testing utilities, and diagnostic testing utilities and user manuals provided as a unit with all the foregoing