Phonograph record and CD players; audio and video tape recorders; blank audio and video tapes and CDs; stereo receivers, amplifiers and turners; magnetic data carriers; automatic vending machines; cash registers; calculators; data processors and computers; computer hardware, namely, memory cards, modems, computer interface boards, blank magnetic computer tapes; fax machines; fiber optic cables; computer and electric cables; optical character recognition apparatus; optical discs; optical scann...