Tabor, Lewis P., 247 Tarski, Alfred, 248-9 Terhune, G. K., 242 Thomas, George B., 238 Thomson, James, 240 Thomson, William, 72, 240 Tilney, Frederick, 229 Torrey, V., 246 Travis, Irven, 239, 244 Tumbleson, Robert C., 253 Turck, J. A. V., 232 Tyler, Arthur W., 252 Varney, R. N., 243 von Neumann, John, 124, 251 Wainwright, Lawrence L., 72, 241 Walpole, Hugh R., 231 Watkins, S. S. A., 254 Wegel, R. L., 242 Weiner, J. R., 251 Wheeler, L. L., 241-2 Whitten, C. A., 238 Wiener, Norbert, 229 Wilbur, J. B., 244 Wilkes, M. V., 249 Williams, Samuel B., 248 Wolf, Arthur W., 233 Womersley, J. R., 241 Wood, Thomas, 19 Woodger, J. H., 248 Woodruff, L. F., 250 Wyatt, Willa A., 254 Wylie, J., 240 Yavne, R. O., 245 Zworykin, V. K., 190, 252, 255 SUBJECT INDEX _Notes: Phrases consisting of an adjective and a noun, or of a noun and a noun, are entered in their alphabetical place according to the first word. For example, “electrostatic storage tube” is under_ e, _and “punch card” is under_ p. _A_ field, 99 _A_ tape, 82-3 abacus, 17-9, 133, 220 _abax_ (Greek), 18 absolute value, 101, 222 accumulator, 115-6 accumulator decade, 118 accuracy, 67, 89 acetylcholine, 3 add output, 120 addend, 223 adder, 77 adder mechanism, 77-8 adding, 24-5, 27, 37, 55, 100, 119, 139 addition circuit, 37 Aiken Mark I Calculator, 10, 89-112, 245-6; _see also_ Harvard IBM Automatic Sequence-Controlled Calculator Aiken Mark II Relay Calculator, 176-8, 249 Aiken Mark III Electronic Calculator, 177 air resistance coefficient, 80-2 algebra of logic, 26, 36, 56-62, 105, 140, 151-2, 164, 221-3, 248 algebraic equations, machines for solving, 244 all-or-none response, 3 alphabet, 14 alphabetic coding, 13, 54 alphabetic punching, 46 alphabetic writing, 13 amplify, 73 analogous, 65 analogue, 65 analogue machines (machines that handle information expressed as measurements), 65; MIT Differential Analyzer No. 2, 65-88; references, 239-45 analytical engine, 90 analyzer, 68, 241-4; _see also_ differential analyzer and, 146-8 and/or, 149 angle-indicator, 74-5 animal thinking, 4, 8, 188 annuities, 88 antecedent, 158 antilogarithm, 139, 226 antitangent, 139, 226 approximation, 220; _see also_ rapid approximation aptitude testing, 190 argument (in a mathematical table or function), 96, 103-4, 122, 136, 224 arithmetical operations, 55-6, 173 armor with a motor, 180, 195 array, 173, 227 Atomic Energy Commission, 203, 208 attitudes, 205 augend, 223 _aut_ (Latin), 149 automatic address-book, 181 automatic carriage, 53 “Automatic Computing Machinery”