falsity, 147 farad, 117 fingers, 16, 18 fire-control instrument, 17, 19, 67, 131 5 impulse, 56 flights, 70 flip-flop, 119 following logically, 145 form feeding device, 236 formal logic, 152 formula, 68, 70, 224 Frankenstein’s monster, 198 function, 68, 70, 81, 103, 116, 118, 224 function table, 80-1, 116, 118 gang punching, 50 gearbox, 77-8 General Electric A.C. Network Analyzer, 243 General Electric Company, 243 geographic code, 54 giant brain, 1, 5-8 globe, 65-6 graph, 81 great circle, 69 greater-than, 25-7, 37, 222 greater-than circuit, 37 Greek letters, 120 guided missile, 197, 206 gun, 69 hail storm, 190 hand perforator, 132, 134 handling information, 10-18 harmonic analyzers, 241-2 harmonic synthesizers, 241-2 Harvard Computation Laboratory, 89, 176-7, 245, 249 Harvard IBM Automatic Sequence-Controlled Calculator (Mark I), 10, 89-112, 245-6; cost, 109; efficiency, 111; reliability, 110; speed, 109 Harvard Sequence-Controlled Electronic Calculator (Mark III), 177 Harvard Sequence-Controlled Relay Calculator (Mark II), 176-8, 249 Harvard University, 1, 4, 8, 89, 176-7, 245, 249 hatred, 206 hoppers, 51 hub, 46, 98 human brain, 2-4, 16, 229 humidity, 63 IBM (International Business Machines), 43-64, 89-90, 177, 233-9, 249-50 IBM Automatic Sequence-Controlled Calculator, 10, 89-112, 245-6; _see also_ Harvard IBM Automatic Sequence-Controlled Calculator IBM card-programmed calculator, 236 IBM pluggable sequence relay calculator, 236 IBM punch-card machinery, 43-64, 233-9 IBM Selective-Sequence Electronic Calculator, 177-9, 249 ideographic writing, 12 if, 146-7 if ... then, 149 ignorance, 205 illness, 191-2 imitative scheme, 12 in-code, 99 in-field, 99 independent variable, 81, 224 infinity, 86, 133, 212, 225 information, 10 initial conditions, 83, 225 Initiating Unit, 115-6 input, 6, 90-1 input devices, 175, 251-2 input register, 27 instantaneous rate of change, 70-1 Institute of Advanced Study, 124 instructions, 28, 83, 97, 178-9 insurance company, 42 insurance policies, 42 insurance values, 88 integral, 68, 71-2, 225 integral sign, 85, 225 integrating, 71-2, 78 integrator, 78-80 integrator mechanism, 78-9 International Business Machines Corporation (IBM), 43; _see_ IBM International Hydrographic Bureau, 242 International Phonetic Alphabet, 13 interpolating, 131, 221 interposing, 102 interpreter, 47, 49, 235 interpreting, 49 interval, 68, 70 intuitive thinking, 8 inverse, 71 judgments, 191