ELECTRONICS TRAINING DEVICES, NAMELY, COMPUTER HARDWARE; TEST INSTRUMENTS, NAMELY, TRANSCEIVERS, PROGRAMMABLE LOGIC CONTROLLERS, AND RADIO RECEIVERS AND TRANSMITTERS; PRINTED CIRCUIT BOARDS AND CARDS WITH INTEGRATED CIRCUITS; PREPACKAGED KITS COMPRISING COMPONENT PARTS IN THE NATURE OF ELECTRIC RESISTORS, ELECTRIC CONNECTORS, AND CABLES FOR ELECTRICAL AND OPTICAL SIGNAL TRANSMISSION; MULTIMEDIA SOFTWARE RECORDED ON CD-ROM AND COURSEWARE, NAMELY, MULTIMEDIA SOFTWARE RECORDED ON CD-ROM FOR EDUCATIONAL PURPOSES, ALL FOR USE IN INSTRUCTION IN OR SIMULATION OF MATHEMATICS, ELECTRICITY, ELECTRONICS AND ELECTROMECHANICS, SCIENCE AND TECHNOLOGY, AUTOMOTIVE ELECTRONICS, AIRCRAFT ELECTRICAL, ELECTRONICS, AND AVIONICS, COMPUTER SERVICING, ANALOG AND DIGITAL SIGNAL PROCESSING AND TRANSMISSION, RF AND SOFTWARE-DEFINED COMMUNICATIONS, RENEWABLE ENERGY SYSTEMS AND STORAGE, FIRE, SURVEILLANCE AND SECURITY SYSTEMS AND CONTROLS, INDUSTRIAL INSTRUMENTATION, INTEGRATION AND PROCESS CONTROLS, HVAC CONTROLS, INVENTORY CONTROLS, MILITARY, NAVIGATION, RADAR, SONAR AND ENCRYPTION CONTROLS AND SUPPORT