345:, binary-to-decimal and decimal-to-binary conversions, and block transfers up to 64 words. The SR register was expanded to 6 bits. The 418-III had two unique hardware features which enabled it to handle continuously high-speed serial character streams. One was called the buffer overflow interrupt and the other hardware buffer chaining. By the 1990s, all the 418 hardware was gone, but the
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325:. Memory cycle time was reduced to 2 microseconds. The militarized version was called the UNIVAC 1219 (known as the "Mk 152 Fire Control Computer.") It was part of the Navy's Mk 76 missile fire control system, used to control the
46:
Over the three different models, more than 392 systems were manufactured. It evolved from the
Control Unit Tester (CUT), a device used in the factory to test peripherals for larger systems.
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was delivered in 1969. It was available with 32,768 to 131,072 words of memory. Memory cycle time was reduced to 750 nanoseconds. New instructions were added for
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216:. It was almost 6 feet tall and weighed 775 pounds (352 kg). It required both 115VAC, 1-phase, 60 Hz and 115VAC, 3-phase, 400 Hz power.
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18-bit
Computers - Computer Unit Tester, 1218 (CP-789), AN/UYK-5 Moonbeam, 1219B-CP-848/UYK , CP-914, ILAAS, 1819, AN/UYK-11(V)
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SR - Register ("Special
Register", 4 bits), a paging register allowing direct access to memory banks other than the executing (
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The first UNIVAC 418-I was delivered in June 1963. It was available with 4,096 to 16,384 words of memory.
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398:
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450:"The UNIVAC 418 Computer - Unisys History Newsletter Volume 4, Number 2 August 2000 by George Gray"
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All register values were displayed in real time on the front panel of the computer in
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ICR - Register (Index
Control Register, 3 bits), also designated the "B-register"
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39:. The name came from its 4-microsecond memory cycle time and 18-bit word. The
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Article about the Univac 1219 and its use in the Navy's Tartar
Missile System
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was delivered in
November 1964. It was available with 4,096 to 65,536 (18-
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because the 18-bit words are evenly divisible by 3, but not by 4.
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k - Designator (6 bits) used for channel number, shift count, etc.
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The 418-I was also available in a militarized version as the
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Design of the real-time executive for the Univac 418 system
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Most common 1218 computer: 16,384 word memory, 8 I/0
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The machine had the following addressable registers:
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for this class of computers was TRIM III and ART418.
374:. M.I.T. Lincoln Laboratory report MIT-LIN-62L-0097.
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UNIVAC 1219 Macro
Assembler - Operating Instructions
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Paper tape subsystem including keyboard and printer
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The USAF creates a real-time network of UNIVAC 418s
122:, single and double precision. The TRIM assembly
413:"International Systems - Japanese Navy Projects"
230:Minimum 1218 computer: 4,096 word memory, 4 I/0
16:A line of three computers designed in the 1960s.
63:- common Load, Store, and Arithmetic operations
246:Militarized magnetic tape system (2 handlers)
8:
280:——————
151:AL - Register (Lower Accumulator, 18 bits)
148:AU - Register (Upper Accumulator, 18 bits)
530:Military electronics of the United States
347:California Department of Water Resources
54:The instruction word had three formats:
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166:P - Register (Program address, 15 bits)
93:z - Operand address or value (12 bits)
469:UNIVAC 418 documents on bitsavers.org
349:was still running 418 emulation on a
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130:numbers as opposed to more common
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299:most common 1218 computer system
111:m - Minor function code (6 bits)
141:A - Register (Double precision
1:
510:System Source Computer Museum
484:The Automated Weather Network
474:UNIVAC 1218 Military Computer
288:minimum 1218 computer system
208:UNIVAC 1218 Military Computer
194:UNIVAC 1218 Military Computer
71:u - Operand address (12 bits)
118:Numbers were represented in
385:George Gray (August 2000).
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262:High speed printer system
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108:f - Function code (6 bits)
90:f - Function code (6 bits)
81:- Constant arithmetic and
68:f - Function code (6 bits)
391:Unisys History Newsletter
387:"The UNIVAC 418 Computer"
343:floating-point arithmetic
535:Transistorized computers
478:Aberdeen Proving Grounds
430:Haynes, Mark S. (1991).
145:, 36 bits) composed of:
222:Basic system/component
370:Neissen, C.W. (1966).
270:80 column card system
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476:1964 BRL report from
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33:magnetic-core memory
397:(2). Archived from
419:on April 29, 2008.
401:on March 28, 2016.
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200:Military computers
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41:assembly language
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540:18-bit computers
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456:on 28 March 2016
452:. Archived from
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415:. Archived from
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120:ones' complement
35:machine made by
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525:UNIVAC hardware
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506:The Univac 1218
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225:Purchase price
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443:External links
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351:UNIVAC 1100/60
339:UNIVAC 418-III
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333:UNIVAC 418-III
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329:radar system.
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103:- Input/Output
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25:transistorized
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315:UNIVAC 418-II
309:UNIVAC 418-II
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37:Sperry Univac
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458:. Retrieved
454:the original
432:Liberty Call
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417:the original
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399:the original
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186:UNIVAC 418-I
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50:Architecture
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20:
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321:) words of
302:$ 393,250
297:Grand total
291:$ 362,250
286:Grand total
241:$ 127,000
214:UNIVAC 1218
176:push button
143:Accumulator
132:hexadecimal
124:source code
519:Categories
460:2 February
357:References
337:The first
313:The first
233:$ 96,000
198:See also:
100:Format III
21:UNIVAC 418
327:AN/SPG-55
85:functions
78:Format II
60:Format I
508:at the
273:83,250
265:77,500
257:25,000
249:80,500
182:mode).
83:Boolean
323:memory
172:binary
29:18-bit
23:was a
128:octal
126:used
31:word
462:2018
19:The
319:bit
180:run
521::
393:.
389:.
353:.
27:,
464:.
434:.
395:4
161:P
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