(section in _Mathematical Tables and Other Aids to Computation_), 177 automatic control: house-furnace, 189; lawn-mower, 188; tractor-plow, 188; weather, 189 automatic cook, 181 automatic factory, 189 automatic library, 9, 181 automatic machinery, 182 automatic pilot, 189 automatic recognizer, 186-7 automatic sequence-controlled calculator, 90; _see also_ Harvard IBM Automatic Sequence-Controlled Calculator automatic stenographer, 185 automatic switching circuits, 248 automatic translator, 182 automatic typist, 182, 184 axon, 3 _B_ field, 99 _B_ tape, 82-3 Ballistic Research Laboratories, 1, 113-5, 127-8, 132, 142 base _e_, 226 base 10, 226 beam of electrons, 172 behavior, 4, 7-8, 29 Bell Telephone Laboratories, 4-5, 128-43, 247-8 Bell Telephone Laboratories’ general-purpose relay computer, 128-43, 247-8; cost, 142; reliability, 141; speed, 142 Bessel functions, 111, 226 Binac, 179 binary coding, 11, 13 binary digit, 14 binary numbers, 14, 216-9 biophysics, 230 biquinary numbers, 133, 219-20 blocks of arguments, 137 Boolean algebra, 152, 248; _see also_ mathematical logic both, 149 bowwow theory, 12 brain evolution, 229 brain with a motor, 180, 195 BTL frames, 138-9 bus, 32, 119 button, 91, 94