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The primary difference between the older NCR 315 and the 315-100 was the inclusion of the
Automatic Recovery Option (ARO). One of the problems with early generation of computers was that when a memory or program error occurred, the system would simply turn on a red light and halt. The normal
593:
Hardware: Datenstruktur: NCR 315-100 / NCR 315-RMC; Wortlänge: Silbe; Bits: 12; Bytes: –; Dezimalziffern: 3; Zeichen: 2; Gleitkommadarstellung: fest verdrahtet; Mantisse: 4 Silben; Exponent: 1 Silbe (11 Stellen + 1 Vorzeichen) Hardware: Data structure: NCR 315-100 / NCR 315-RMC;
189:
A numeric value contains up to eight slabs. If the value is negative then the minus sign is the leftmost digit of this row. There are instructions to transform digits to or from alphanumeric characters. These commands use the
214:
recovery process was to copy all register and counter setting from the console light panel, and to restart the program that was running at the time of the error, usually from the very beginning of the program.
80:
digits. Basic memory is 5000 "slabs" (10,000 characters or 15,000 decimal digits) of handmade core memory, which is expandable to a maximum of 40,000 slabs (80,000 characters or 120,000 decimal digits) in four
552:
93:
with lights that indicate the current status of the program counter, registers, arithmetic accumulator, and system errors. Input/Output is by direct
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589: = Silbe, die kleinste adressierbare Informationseinheit fĂĽr 12 bit zur Ăśbertragung von zwei Alphazeichen oder drei numerischen Zeichen.
85:-size cabinets. The main processor includes three cabinets and a console section that houses the power supply, keyboard, output writer (an
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551:] (in German) (softcover reprint of hardcover 1st ed.). Wiesbaden, Germany: Springer Fachmedien Wiesbaden GmbH /
194:, which has a maximum length of eight slabs. To accelerate the processing the accumulator works with an effective length.
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logic to allow scientific calculations, while retaining the same instruction set as previous NCR 315 and NCR 315-100.
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The addressable unit of memory on the NCR 315 series is a "slab", short for "syllable", consisting of 12 data
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connection on the backplane, and the installation of approximately 2400 new point-to-point wired connection.
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clock cycle, and from 10,000 to 40,000 slabs of memory. The 315-100 series console I/O incorporates a
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to each type of peripheral through a two-cable bundle with 1-inch-thick cables. Some devices like
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The NCR 315-RMC, released in July 1965, was the first commercially available computer to employ
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treated as digits) or two alphabetic characters of six bits each. A slab may contain a
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The thin film is wrapped around "rods" to allow faster reading and writing of memory.
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The central processor (315 Data
Processor) weighed about 1,325 pounds (601 kg).
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The NCR 315-100 is the second version of the original 315. It too has a 6-
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printer and keyboard in place of the original 315's IBM typewriter.
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Creating the
Computer: Government, Industry, and High Technology
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The upgrade to the 315 required the removal of approximate 1800
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National
Electronic Autocoding Technique (NEAT) — similar to
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69:. The instructions can use a memory slab as either two
704:"A Thin-Film Rod Memory for the NCR 315 RMC Computer"
486:"The National 315 Electronic Data Processing System"
58:(RTL) to create the various logic elements. It uses
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Betriebswirtschaftlicher Verlag Dr. Th. Gabler GmbH
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500:
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636:
634:
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452:. Brookings Institution Press. p. 118.
233:. This reduced the clock cycle time to 800
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676:Reference Manual - NEAT Compiler - NCR 315
631:
480:
478:
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158:'). A slab may contain three digits (with
109:to allow multiple drives to be connected.
711:IEEE Transactions on Electronic Computers
540:
439:
423:– Used an NCR 315 to predict its outcome
278:
274:BEST, a high-level preproocesor for NEAT
115:Later models in this series include the
26:
18:
701:
506:"315 Electronic Data Processing System"
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515:. November 1965. NCR MPN ST-5008-15.
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247:The follow-on to the 315-RMC was the
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626:: 1 syllable (11 digits + 1 prefix)]
375:Card Reader, Paper Tape Reader/Punch
328:Magnetic Card Random Access Memory (
73:alphanumeric characters or as three
408:High Speed MICR Check Reader/Sorter
13:
663:from the original on May 24, 2016.
14:
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690:
549:Lexicon of information technology
522:from the original on May 24, 2016
320:Magnetic Tape Drive (200/512 bpi)
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1017:
1016:
120:
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369:2000 CPS High speed card reader
16:1962 second-generation computer
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39:, released in January 1962 by
37:NCR 315 Data Processing System
1:
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702:Higashi, Paul (August 1966).
432:
304:Magnetic tape drive (512 bpi)
7:
412:
146:. Its size falls between a
10:
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544:Datenverarbeitungs-Lexikon
398:Optical Character Reader (
130:
1012:
946:
885:
877:Teradata Data Warehousing
844:
770:
682:. National Cash Register.
650:Computer Usage Communique
561:10.1007/978-3-663-13618-7
541:Schneider, Carl (2013) .
491:. National Cash Register.
287:Communications Controller
56:resistor–transistor logic
1078:NCR Corporation products
1063:Transistorized computers
719:10.1109/PGEC.1966.264353
186:value from -99 to +999.
131:Not to be confused with
641:Bardin, Hillel (1963).
446:Flamm, Kenneth (1988).
123:(Rod Memory Computer).
87:IBM electric typewriter
65:memory structure using
867:Netkey Digital Signage
697:Rod Memory description
260:NCR Assembler Language
52:printed circuit boards
32:
24:
803:Carbonless Copy Paper
771:Products and services
616:Floating point format
555:. pp. 201, 308.
279:Available peripherals
30:
22:
857:Copient Technologies
614:: 3; Characters: 2;
314:tape drive (512 bpi)
293:600-LPM line printer
95:parallel connections
67:magnetic-core memory
1058:Mainframe computers
392:Check Reader/Sorter
255:Available languages
237:. It also included
127:Memory organization
999:Wright Bros. House
713:. EC-15 (4): 429.
427:Catena (computing)
154:(hence the name, '
33:
25:
1068:Decimal computers
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1044:
643:"NCR 315 Seminar"
570:978-3-409-31831-0
363:Card Reader/Punch
348:Paper Tape Reader
45:second-generation
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1073:12-bit computers
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862:NCR Self-Service
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354:Paper Tape Punch
231:thin-film memory
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1004:WWII Enigma Lab
984:Patterson House
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622:: 4 syllables;
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420:The Super Fight
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133:Slab allocation
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928:John Patterson
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923:Francis Osborn
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908:Joel McCormack
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691:External links
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618:: hard-wired;
612:Decimal digits
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297:Magnetic tapes
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239:floating-point
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150:and a typical
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969:Career Center
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893:Bill Anderson
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872:Symbios Logic
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459:0-8157-2850-6
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310:Control Data
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107:daisy-chained
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99:magnetic tape
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974:Country Club
782:
724:February 11,
722:. Retrieved
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574:. Retrieved
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524:. Retrieved
463:. Retrieved
448:
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246:
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228:
219:wire-wrapped
216:
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83:refrigerator
62:
36:
34:
933:James Ritty
913:Lars Nyberg
852:4Front UNIX
808:Century 100
620:Significand
596:Word length
585:, Abk. aus
526:January 28,
382:Drum memory
249:NCR Century
235:nanoseconds
225:NCR 315-RMC
204:microsecond
198:NCR 315-100
192:accumulator
1052:Categories
994:Slidertown
959:Book Award
938:Tom Watson
918:Bob Oelman
433:References
342:equipment
340:paper tape
144:parity bit
979:Institute
903:Joe Desch
845:Divisions
764:NCR Voyix
265:Autocoder
172:ampersand
89:), and a
1023:Category
964:Building
898:Ed Deeds
658:Archived
624:Exponent
600:Syllable
587:syllable
517:Archived
413:See also
380:NCR-???
251:series.
208:Teletype
156:syllable
119:and the
101:and the
48:computer
1036:Commons
954:Babbitt
836:WaveLAN
826:Voyager
576:May 24,
465:May 24,
406:NCR-407
396:NCR-420
387:NCR-402
373:NCR-472
367:NCR-380
358:NCR-376
352:NCR-371
346:NCR-361
326:NCR-353
318:NCR-334
308:NCR-333
302:NCR-332
291:NCR-340
285:NCR-321
184:decimal
160:at sign
121:315-RMC
117:315-100
43:, is a
31:Console
23:NCR 315
1033:
886:People
606:: 12;
567:
456:
178:, and
142:and a
60:12-bit
50:. All
947:Other
798:53C9x
707:(PDF)
680:(PDF)
661:(PDF)
656:(3).
646:(PDF)
610:: –;
608:Bytes
591:(NCR)
547:[
520:(PDF)
509:(PDF)
489:(PDF)
270:COBOL
180:minus
176:point
168:space
164:comma
91:panel
75:4-bit
71:6-bit
989:Slab
813:CRAM
793:5380
726:2018
604:Bits
583:slab
578:2016
565:ISBN
528:2015
467:2016
454:ISBN
390:MICR
338:and
336:Card
330:CRAM
152:word
148:byte
140:bits
105:are
103:CRAM
63:slab
54:use
35:The
831:VRX
821:TMX
817:SLU
788:340
783:315
778:304
715:doi
557:doi
513:NCR
400:OCR
361:IBM
312:CDC
78:BCD
41:NCR
1054::
709:.
652:.
648:.
633:^
602:;
598::
580:.
563:.
511:.
497:^
475:^
174:,
170:,
166:,
162:,
756:e
749:t
742:v
728:.
717::
654:2
559::
530:.
469:.
402:)
332:)
135:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
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