electronic billboards; liquid crystal displays; computer monitors; computer keyboards; floppy disks; computer mouses; hard drives; data processors; computers; computer casings; compact disk drives; word readers; computer touch-sensitive input machines; micro-computer emulators; image scanners; computer tablets; electronic books featuring fiction and non-fiction; personal digital assistants; CD-ROM writers for electronic publications in the form of electronic books recorded on floppy disks, compact disks, and digital video discs featuring computers, science, history, travel, literature, technology, weather, sports, current events, and reference materials; electronic data integrating machines; computer interface cards; computer main boards/mother boards; accelerator cards; image cards; display cards; extension cards; digital video cameras; digital cameras; digital versatile disc read only memories; closed-circuit television monitors; disc players; video disc players; video compact disk players; projection television; laser disc players; speakers; satellite television signal receivers; dictating recorders; computer speakers; liquid crystal display televisions; television sets; audio speakers; apparatus for audio and video teaching, namely, virtual PC using a web cam and video monitor; storage batteries; Li-batteries; connection lines for computers; video signal lines; data transmission lines; intercom with monitor; videophones; video conference apparatus, namely, web cam, computer monitors; liquid crystal displays; global position system navigation apparatus, namely, GPS for car PC or tablet PC, global positioning satellite receiver; diffraction grating cathode ray tubes; monitors for personal digital assistants; interface cards; magnetic identification cards; value-added cards,namely, sound cards, graphic cards, TV tuner cards, modem cards, LAN cards, super input/output cards