SABRE (Semi-Automatic Business-Related Environment), 208–9
SAGE (Semi-Automatic Ground Environment) computer, 204–8
Salsberg, Arthur, 272
Scaling circuits, 113
Scheutz, Edvard, 56–57
Scheutz, Pehr Georg, 55–57
Scheutz Difference Engine, 55–58
Schickard, Wilhelm, 15–22
calculator and (see Schickard’s Calculating Clock)
map of, 17
Schickard’s Calculating Clock, 20, 21, 27
Schreyer, Helmut, 93–95
Scientific American, cover of, (1890), 76
Scott, Mike, 281
Seaton, Charles W., 71
Seaton device, 71–72
Semiconductor firms. See Fairchild Semiconductor; Shockley Semiconductor Laboratory
Semiconductors
definition of, 225
transistors and, 226–28
Serial access retrieval, 72
Shannon, Claude E., 100–101
Shaw, Robert, 157
Sheppard, Bradford, 157
Shockley, WIlliam, 227–28, 239–40
Shockley Semiconductor Laboratory, 239–41
Short Code, UNIVAC’s, 213
Signetics, 259
Silicon, research on, 226–27
Silicon transistors, 235, 241–44
Silicon Valley, 241, 260
Sims, John, 157
Slide rule, invention of circular and rectilinear, 11–13
Smith, George A., 151
Smoliar, Gerald, 157
Solid-state physics, 239
Solomon, Leslie, 272
Speedcoding, 215
Sperry Corporation, merger with Rand by, 217
Sperry Rand Corporation, 217, 257, 259
Sprague Electric Company, 242
SSEC (Selective Sequence Electronic Calculator), 188–89
Stanhope, Charles (Third Earl), 37
Steckler, Larry, 269
Steiger, Otto, 80
Stein, Paul, 154
Stepped Reckoner, 31–35
Stibitz, George, 137
background of, 99–100
complex number calculator and, 101–102, 139
UNIVAC and, 158
Storage, in Analytical Engine, 60–61
Stored-program computer See Eckert, J. Presper, Jr.; EDVAC; Mauchly, John W.
Stored-program parallel processor. See IAS computer
Stored programs, conception of, 133–36
Straus, Henry L., 161–62
Strings, 95
Subroutines
definition of, 213
example of, 64
Subtraction, nines complement method for, 25
Supercomputer, definition of, 218
Sweeney, Harold, 163
Symbolic language, and Mark I, 212
Symbolic logic. See Boolean algebra