COMPUTERIZED DESIGN SYSTEMS NAMELY, COMPUTER GRAPHICS WORKSTATIONS COMPRISED IN WHOLE OR IN PART OF CRT DISPLAYS, PERIPHERALS CABINETS CONTAINING MAGNETIC TAPE UNITS, POWER SUPPLIES, AND MULTIPLEXERS; MONITORS, KEYBOARDS, DIGITIZERS, TABLETS DESKSIDE, COMPUTER MODULES CONTAINING CENTRAL PROCESSING UNITS, MAIN MEMORY UNITS AND SERIAL PORTS, AND COMPUTER PROGRAMS ON MAGNETIC DISKS AND TAPES