Knowledge (XXG)

Tyranny of numbers

Source 📝

29: 114: 319: 305: 291: 225:, greatly reducing their cost. Although any given IC might have the same chance of working or not working as a module, they cost so little that if they didn't work you simply threw it away and tried another. In fact, early IC assembly lines had failure rates around 90% or greater, which kept their prices high. The 252:
was particularly well known for making complex designs work in spite of the tyranny of numbers. His attention to detail and ability to fund several attempts at a working design meant that pure engineering effort could overcome the problems they faced. Yet even Cray eventually succumbed to the problem
173:
Since each module was relatively custom, modules were assembled and soldered by hand or with limited automation. As a result, they suffered major reliability problems. Even a single bad component or solder joint could render the entire module inoperative. Even with properly working modules, the mass
140:
For some time now, electronic man has known how 'in principle' to extend greatly his visual, tactile, and mental abilities through the digital transmission and processing of all kinds of information. However, all these functions suffer from what has been called 'the tyranny of numbers.' Such systems,
174:
of wiring connecting them together was another source of construction and reliability problems. As computers grew in complexity, and the number of modules increased, the complexity of making a machine actually work grew more and more difficult. This was the "tyranny of numbers".
233:
were major purchasers of early ICs, where their small size and light weight overcame any cost issues. They demanded high reliability, and the industry's response not only provided the desired reliability but meant that the increased yield had the effect of driving down prices.
101:. Engineers were unable to increase the performance of their designs due to the huge number of components involved. In theory, every component needed to be wired to every other component (or at least many other components) and were typically strung and 237:
ICs from the early 1960s were not complex enough for general computer use, but as the complexity increased through the 1960s, practically all computers switched to IC-based designs. The result was what are today referred to as the
162:
of a standardized size, with a connector on one edge that allowed them to be plugged into the power and signaling lines of the machine, and were then wired to other modules using
154:
At the time, computers were typically built up from a series of "modules", each module containing the electronics needed to perform a single function. A complex circuit like an
58: 105:
by hand. In order to improve performance, more components would be needed, and it seemed that future designs would consist almost entirely of wiring.
206:, etc.), he set about building a single-slab component that combined the functionality of an entire module. Although successful in this goal, it was 80: 271: 350: 340: 239: 141:
because of their complex digital nature, require hundreds, thousands, and sometimes tens of thousands of electron devices.
41: 51: 45: 37: 246:, eventually superseded the use of individual ICs as well, placing the entire collection of modules onto one chip. 355: 62: 345: 17: 159: 98: 155: 147: 113: 324: 296: 211: 158:
would generally require several modules working in concert. The modules were typically built on
310: 242:, which became commonplace during the early 1970s. The progeny of the integrated circuit, the 187: 134: 125:
The first known recorded use of the term in this context was made by the Vice President of
279: 243: 226: 318: 334: 222: 167: 258: 249: 218: 207: 163: 195: 290: 304: 286: 203: 183: 130: 133:, for the "Proceedings of the IRE" (Institute of Radio Engineers), June 1958 199: 191: 126: 102: 210:'s silicon version and the associated fabrication techniques that make the 254: 129:
in an article celebrating the 10th anniversary of the invention of the
118: 136:. Referring to the problems many designers were having, he wrote: 112: 230: 22: 194:
could be used to make all common electronic components (
16:For the concept in classical political theory, see 50:but its sources remain unclear because it lacks 138: 257:project, which eventually led to him leaving 8: 81:Learn how and when to remove this message 217:Unlike modules, ICs were built using 178:Motivation for the integrated circuit 7: 186:was thinking about while working at 97:was a problem faced in the 1960s by 182:It was precisely this problem that 14: 317: 303: 289: 27: 1: 121:contained 50 miles of wiring. 372: 272:"The Chip that Jack Built" 240:third-generation computers 15: 36:This article includes a 351:Quotations from science 65:more precise citations. 18:Tyranny of the majority 214:(IC) truly practical. 160:printed circuit boards 152: 148:The Tyranny of Numbers 122: 116: 341:Computer engineering 325:Engineering portal 297:Electronics portal 282:on 4 January 2012. 212:integrated circuit 190:. Theorizing that 123: 99:computer engineers 95:tyranny of numbers 38:list of references 311:Technology portal 276:Texas Instruments 221:techniques on an 188:Texas Instruments 91: 90: 83: 363: 356:1950s neologisms 327: 322: 321: 313: 308: 307: 299: 294: 293: 283: 278:. Archived from 150: 86: 79: 75: 72: 66: 61:this article by 52:inline citations 31: 30: 23: 371: 370: 366: 365: 364: 362: 361: 360: 346:Early computers 331: 330: 323: 316: 309: 302: 295: 288: 270: 267: 180: 151: 145: 111: 87: 76: 70: 67: 56: 42:related reading 32: 28: 21: 12: 11: 5: 369: 367: 359: 358: 353: 348: 343: 333: 332: 329: 328: 314: 300: 285: 284: 266: 263: 244:microprocessor 227:U.S. Air Force 179: 176: 143: 110: 107: 89: 88: 46:external links 35: 33: 26: 13: 10: 9: 6: 4: 3: 2: 368: 357: 354: 352: 349: 347: 344: 342: 339: 338: 336: 326: 320: 315: 312: 306: 301: 298: 292: 287: 281: 277: 273: 269: 268: 264: 262: 260: 256: 251: 247: 245: 241: 235: 232: 228: 224: 223:assembly line 220: 215: 213: 209: 205: 201: 197: 193: 189: 185: 177: 175: 171: 169: 168:coaxial cable 165: 161: 157: 149: 146:Jack Morton, 142: 137: 135: 132: 128: 120: 115: 108: 106: 104: 100: 96: 85: 82: 74: 71:November 2009 64: 60: 54: 53: 47: 43: 39: 34: 25: 24: 19: 280:the original 275: 259:Control Data 250:Seymour Cray 248: 236: 219:photoetching 216: 208:Robert Noyce 181: 172: 164:twisted pair 153: 139: 124: 94: 92: 77: 68: 57:Please help 49: 253:during the 196:transistors 63:introducing 335:Categories 265:References 204:capacitors 184:Jack Kilby 131:transistor 200:resistors 192:germanium 127:Bell Labs 255:CDC 8600 144:—  103:soldered 109:History 59:improve 119:Cray-1 156:adder 44:, or 231:NASA 229:and 117:The 93:The 166:or 337:: 274:. 261:. 202:, 198:, 170:. 48:, 40:, 84:) 78:( 73:) 69:( 55:. 20:.

Index

Tyranny of the majority
list of references
related reading
external links
inline citations
improve
introducing
Learn how and when to remove this message
computer engineers
soldered

Cray-1
Bell Labs
transistor

The Tyranny of Numbers
adder
printed circuit boards
twisted pair
coaxial cable
Jack Kilby
Texas Instruments
germanium
transistors
resistors
capacitors
Robert Noyce
integrated circuit
photoetching
assembly line

Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.