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The Computer Revolution
Information Structure Subsystems
Talking to the Computer
15 other sections not shown
addition analog appears applied arithmetic auxiliary base binary numbers block boxes buffer capacitor carry cell character clamp collector column combinations common emitter contains control subsystem core count cycle decimal decoder delay device diode entered examine fetch figure flapjac flipflop four bits full adder hardware index register indicates input lines input voltage instruction counter instruction register Karnaugh map labeled logic machine language magnetic tape memory address register memory data register multiplication multiplier digit nand nbcd code negative l's operand operation output signal output voltage parity bit passes perform pnp transistor positive post train potential presented problem processor produces punch punchcards quantity represent reset resistor result saturation shift pulses shown in Fig stored subtraction supply voltage switch symbol task term transfer transistor truth table variables Venn diagram waveform