T

Tables

mathematical, 3940
mechanical calculation of, 4142

Tabulating Machine, 56
Tabulating Machine Company, 78, 17477
Tabulation of data, 7072, 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, 233236

Thacher, E., 12
Thomas de Colmar, Charles Xavier, 3738, 78
Thomson, William (Lord Kelvin), 84, 86
Tide predictor, 8486
Time-sharing system, 255
Tinkertoy, Project, 23233
Titus, Jonathan A., 269

background of, 26869
Mark-8 and, 269

Totalisators, 161
Totnes, England, 45
Transistorized computers, 230
Transistors

first commercial, 235
invention of and research on, 22530
junction, 22829, 243
planar, 24144
point-contact, 22829
silicon, 235, 24144

Travis, Irven, 152
Trexler, Richard L., 119
Triode, invention of , 22526
Trowbridge, William P., 70
TRS-80 computer, 267
Tubes, three-electrode, 22526. See also Vacuum tubes
Turing, Alan, 142, 14748, 150, 212

background of, 14546
“Computable Numbers” and, 142145

Turing machine, 14245