telecommunications equipment and software, sold as separate components and as a system for purposes of personal audio/video communications and videoconferencing, namely, video cameras, document cameras, loud speakers, speaker telephones, microphones, video monitors, keypads, electronic drawing apparatus, video cassette recorders, media converters, electrial and computer cables, coders, decoders, computer interface circuit boards, multipoint controllers, and computer hardware and programs for operating the above telecommunications equipment, for establishing network connections, for conference scheduling and administration and for data compression, and modems, telecommunications circuit boards and cards, cabinets and carts for such equipment, and user manuals sold as a unit with such equipment and software