Honeywell+6000

a family of [|36-bit] [|mainframe computers] manufactured by [|Honeywell International, Inc.] from 1970 to 1989 build from [|TTL] [|SSI] integrated circuits and ferrite core memory. They were re-badged versions of [|General Electric's] [|GE-600-series] originating in the 1960s as [|discrete transistor machines]. The architecture was similar to the IBM 7090. The GE-600 aka Honeywell 6000 used 36-bit words and 18-bit addresses and had two 36-bit [|accumulators] A and Q, eight 18-bit [|index registers] X0 - X7, and one 8-bit exponent register to support floating point with the mantissa in both 36-bit single-precision and 2 x 36-bit double precision.
 * Home * Hardware * Honeywell 6000**
 * [[image:GE-635.jpg link="http://www.dartmouth.edu/its-tools/archive/history/timeline/1960s.html"]] ||~ || **Honeywell 6000**, (GE-600)

Systems were constructed of three main kinds of interconnected units, [|CPUs], system control units including memory, and [|I/O] [|multiplexer] (IOM) to connect [|peripherals], [|disk storage] and [|tape drives]. || toc =Selected Systems=
 * GE-635 at Dartmouth College ||~ ||^ ||

GE-635/645
The **GE-635** as member of the GE-600 series was likely the first general purpose SMP system, though the [|GCOS/GECOS] operating system treated the processors as a master and up to three slaves. At Dartmouth College, the GE-635 was used to develop [|Dartmouth Time Sharing System] starting in 1965, while [|Multics] was developed by MIT, [|General Electric] and Bell Labs requiring virtual memory of the hardware advanced **GE-645**. The Dartmouth College chess programs Dartmouth CP and Dart 4.1 ran on the GE-635.

Level 66/68
Introduced in 1975, Level 66/68 were enhanced versions of the 6000 series, running GCOS/Multics. GCOS models included the 66/05, /10, /20, /40, /60 and /80, particular models with various memory sizes, etc.. Systems could have a maximum of seven CPUs and four IOMs, the total of the two restricted to eight.

DPS 8
The Honeywell **DPS8** was a descendant of the GE-645 released in 1983. The DPS8/70 is a particular model in the line. Phoenix played the WCCC 1983 on such a $10 million machine.

=Chess Programs=
 * Dart
 * Dartmouth CP
 * Phoenix
 * Prodigy
 * Ribbit
 * Treefrog

=See also=
 * IBM 7090
 * PDP-6
 * PDP-10

=Publications=
 * [|Edward L. Glaser], [|John F. Couleur], G. A. Oliver (**1965**). //[|System Design of a Computer for Time Sharing Applications]//. [|Fall Joint Computer Conference]

=Manuals=
 * [|General Electric] (**1964**). //[|GE-635 System Manual]//. hosted by [|Computing History - The UK Computer Museum - Cambridge]
 * [|General Electric] (**1964**). //[|GE-625 / 635 Programming Reference Manual]//. hosted by [|Ed Thelen]
 * [|General Electric] (**1968**). //GE-645 System Manual//. [|pdf]
 * [|Honeywell] (**1971**). //Series 6000 Summary Description//. [|pdf]
 * [|Honeywell] (**1985**). //AL39 - Multics Processor Manual//. [|pdf]

=Brochures=
 * [|Honeywell Level 68 Multics System: Focusing on Today's Interactive Processing Needs] (1973) hosted by The Computer History Museum
 * [|Honeywell: The Multics System] (1975) hosted by The Computer History Museum

=Postings=
 * [|Info on GE-635] by Charles Richmond, [|alt.folklore.computers], January 29, 1991
 * [|Re: the legacy of Seymour Cray] by Alan Bowler, [|alt.folklore.computers], January 08, 2016

=External Links=
 * [|GE-600 series from Wikipedia]
 * [|Honeywell 6000 series from Wikipedia]
 * [|Honeywell 6000 series - Computer History Wiki]
 * [|Honeywell L66 DPS8 DPS8000 - Daniel T O'Callahan - IT Consulting]
 * [|Honeywell DPS8] by [|Ed Thelen]

=References= =What links here?= include page="Honeywell 6000" component="backlinks" limit="40"
 * Up one Level**