## ABC's of Computers |

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80 volts accumulator addition amplifier analog computer anode applied arithmetic automatic base basic binary digit binary numbers binary system binary-coded decimal bits capacitor carry cathode CHAPTER circuit in Fig clamp closed COBOL complement computer memory computer word conduct count Courtesy decimal numbers decimal system digital computer diode electronic example ferrite flip-flop Friden functions gate grid half adder hence holes input signals instructions inverter logical circuits machine magnetic cores magnetic drum magnetic field magnetic tape magnetic-core means meter multiply multivibrator negative numbering system octal operations output voltage parallel PNP transistor positive pulse possible punched cards punched paper tape puter recorded relays represent resistor ring counter shift left shift register shift right shown in Fig Solid-state light speed stage storage subtract symbols techniques thyratron tion track transistor vacuum tubes voltage volts wire zero