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EDUCATIONAL MICROCOMPUTER APPLICATIONS INSTRUCTIONAL WORKSTATION FOR TEACHING PRINCIPLES OF COMPUTER CONTROL, COMPRISING A MICROCOMPUTER APPLICATIONS TRAINER SYSTEM NAMELY, BUILT-IN COMPUTER HARDWARE SUB-SYSTEMS, ANALOG AND DIGITAL ELECTRONIC CIRCUIT COMPONENTS, FUNCTION GENERATOR, A SOLDERLESS SOCKET BREADBOARDING AREA IN WHICH VARIOUS ELECTRONIC CIRCUIT COMPONENTS ARE INSERTED AND INTERCONNECTED WITH THE BUILT-IN ELECTRONIC CIRCUIT COMPONENTS IN THE SPECIFIC CIRCUIT CONFIGURATION BEING STUDIED, COMPUTER BUS INTERFACE, PERSONAL COMPUTER BUFFER CARD, COMPUTER PROGRAMS, ASSOCIATED INSTRUCTION AND USER MANUALS SOLD THEREWITH; A KEYBOARD AND DISPLAY MODULE, NAMELY, BUILT-IN SEGMENTED DISPLAY DEVICES, PROGRAMMABLE COUNTER AND TIMER, PROGRAMMABLE INPUT AND OUTPUT DATA ADDRESS CONTROL, DIGITAL LOGIC PULSERS, DIGITAL SWITCHES, DIGITAL INDICATORS, COMPUTER PROGRAMS, ASSOCIATED INSTRUCTION AND USER MANUALS SOLD THEREWITH; A SENSOR MODULE, NAMELY, BUILT-IN TEMPERATURE SENSOR, MAGNETIC SENSOR, OPTICAL SENSOR, MOISTURE SENSOR, POWER SUPPLY, MULTIPLE CHANNEL MULTIPLEXER, COMPUTER PROGRAMS, ASSOCIATED INSTRUCTION AND USER MANUALS SOLD THEREWITH; A DC STEPPER MOTOR MODULE, NAMELY, STEPPING MOTOR, ELECTRONIC CIRCUITRY FOR POWERING STEPPING MOTOR, COMPUTER PROGRAMS, ASSOCIATED INSTRUCTION AND USER MANUALS SOLD THEREWITH; A DC SERVOMOTOR MODULE, NAMELY, SERVOMOTOR, ELECTRONIC AMPLIFICATION CIRCUITRY, COMPUTER PROGRAMS, ASSOCIATED INSTRUCTION AND USER MANUALS SOLD THEREWITH