UNIVAC+1100

a series of [|solid-state] mainframe computer systems by [|Sperry UNIVAC] (since 1986 [|Unisys]), started with the [|UNIVAC 1107] in 1962, the multiprocessor capable [|UNIVAC 1108] introduced in 1964 using integrated circuits rather than [|thin film memory], the cheaper [|UNIVAC 1106] in 1969, the enhanced multiprocessing support [|UNIVAC 1110] in 1972, followed by the [|semiconductor memory series] such as the 1100/10 in 1975 and the 1100/80 in 1979. || toc =Architecture= The UNIVAC 1100 series was a [|36-bit] machine using [|ones' complement] integer arithmetic as well as single (1:8:27) and double precision (1:11:60) [|floating point] arithmetic. 128 [|registers] include 15 [|index registers] (X1 ... X15), 16 [|accumulators] (A0 ... A15), and 15 special function user registers (R1 .. R15), the last four index registers (X12 ... X15) and the first four accumulators (A0 ... A3) overlap. All instructions were one 36-bit word long. Early machines had core memory and plated wire memory, until that was replaced with [|semiconductor] memory in 1975. =Photos= From left, Fred Swartz (rear), Vic Berman (front), Bill Toikka, Ira Ruben (seated), Joe Winograd || =Chess Programs=
 * Home * Hardware * UNIVAC 1100**
 * [[image:AlbanyStateUniversity_ComputerOperationsRoom_1981_Univac1100-80_skaliert.jpg link="https://commons.wikimedia.org/wiki/File:AlbanyStateUniversity_ComputerOperationsRoom_1981_Univac1100-80_skaliert.jpg"]] ||~ || **UNIVAC 1100**, (UNIVersal Automatic Computer)
 * UNIVAC 1100/80 ||~ ||^ ||
 * [[image:CHAOS Team circa 1972.gif width="640"]] ||
 * = The CHAOS Team circa 1972 with UNIVAC 1108 Computer in [|Cinnaminson, NJ]
 * Black Knight
 * Blitz
 * CHAOS
 * Coko
 * Dark Horse
 * MSU CP

=See also=
 * UNIVAC 418
 * UNIVAC 494

=Manuals=
 * [|SPERRY UNIVAC Series 1100 Sales Information Manual] (pdf hosted by [|bitsavers.org])
 * [|UNIVAC 1108-II The Big System With the Big Reputation, 1965] (pdf hosted by The Computer History Museum)

=External Links= > [|UNIVAC 1100 Series Instruction Set]
 * [|UNIVAC 1100/2200 series from Wikipedia]
 * [|UNIVAC 1100/60 from Wikipedia]
 * [|UNIVAC Memories] by [|John Walker]
 * [|The UNIVAC 1100 in the Early 70s - Folklore] by George Gray
 * [|The UNIVAC 1108 - Folklore] by George Gray

=References= =What links here?= include page="UNIVAC 1100" component="backlinks" limit="40"
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