D

DATA PROCESSING EQUIPMENT AND COMPONENTS AND SUB-UNITS OF DATA PROCESSING EQUIPMENT-NAMELY, COMPUTERS, INTERACTIVE DISPLAY TERMINALS, DATA OUTPUT PRINTERS, TYPE WHEELS FOR DATA OUTPUT PRINTERS, MAGNETIC TAPE TRANSPORTS, DISK STORAGE UNITS, PUNCHED CARD READERS, COMPUTER-TYPEWRITER INTERFACES, TELEPHONE COUPLERS FOR DATA INPUT AND OUTPUT, MAGNETIC TAPE CASSETTES, BOTH VIRGIN AND CARRYING RECORDED COMPUTER PROGRAMS, CASSETTE TAPE DECKS, COMPUTER MODEMS, COMPUTER PARALLEL-SERIAL CONVERTERS, COMPUTER INTERFACES, ELECTRICAL CONNECTING CABLES, PRINTED CIRCUIT BOARDS, DATA MEMORIES, CENTRAL PROCESSING UNITS, CATHODE RAY TUBES, POWER SUPPLIES, AND KEYBOARDS