Tables
mathematical, 39–40
mechanical calculation of, 41–42
Tabulating Machine, 56
Tabulating Machine Company, 78, 174–77
Tabulation of data, 70–72, 75. See also Hollerith’s tabulating system
TA Pertec, 275
Tarrant, Robert, 81
Taylor, Norman, 206, 256
Teledyne Semiconductor, 259
Terrell, Paul, 279
Texas Instruments (TI), 239, 261
integrated circuits and, 233–236
Thacher, E., 12
Thomas de Colmar, Charles Xavier, 37–38, 78
Thomson, William (Lord Kelvin), 84, 86
Tide predictor, 84–86
Time-sharing system, 255
Tinkertoy, Project, 232–33
Titus, Jonathan A., 269
background of, 268–69
Mark-8 and, 269
Totalisators, 161
Totnes, England, 45
Transistorized computers, 230
Transistors
first commercial, 235
invention of and research on, 225–30
junction, 228–29, 243
planar, 241–44
point-contact, 228–29
silicon, 235, 241–44
Travis, Irven, 152
Trexler, Richard L., 119
Triode, invention of , 225–26
Trowbridge, William P., 70
TRS-80 computer, 267
Tubes, three-electrode, 225–26. See also Vacuum tubes
Turing, Alan, 142, 147–48, 150, 212