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'''[[Main Page|Home]] * [[Hardware]] * PDP-10'''
[[FILE:pdp10.jpg|border|right|thumb|link=http://archive.computerhistory.org/resources/text/dec/dec.digital_%28DEC%29_timeline_1957-1997.102630354/1967-1.htm|PDP-10 debut, September 1967 <ref>September 1967: The PDP-10 debuts, [http://archive.computerhistory.org/resources/text/dec/dec.digital_%28DEC%29_timeline_1957-1997.102630354/1967-1.htm PDP-10] from [[The Computer History Museum]]</ref> ]]
The '''PDP-10''' was a [https://en.wikipedia.org/wiki/Mainframe_computer mainframe computer] family manufactured and sold by [[Digital Equipment Corporation]] from 1967. Its architecture was an almost identical version of the earlier [[PDP-6]] architecture, sharing the same [https://en.wikipedia.org/wiki/36-bit 36-bit] word length and slightly extending the instruction set with improved hardware implementation. PDP-10 had 18-bit word addresses, in a so called supervisor mode, instruction addresses correspond directly to physical memory, In user mode, addresses are translated to physical memory. There are 16 general-purpose, 36-bit registers.
The PDP-10 was the foundation of the DECsystem-10 and the [https://en.wikipedia.org/wiki/DECSYSTEM-20 DECSYSTEM-20] and ran a variety of operating systems including [https://en.wikipedia.org/wiki/TOPS-10 TOPS-10], [https://en.wikipedia.org/wiki/Incompatible_Timesharing_System ITS], [https://en.wikipedia.org/wiki/WAITS WAITS], [http://www.encyclo.co.uk/define/TYMCOM-X TYMCOM-X], [https://en.wikipedia.org/wiki/TOPS-20#TENEX TENEX], and [https://en.wikipedia.org/wiki/TOPS-20 TOPS-20] <ref>[http://tenex.opost.com/hbook.html Origins and Development of TOPS-20] by [http://www.opost.com/dlm/ Dan Murphy]</ref>. TOPS-10 was the first widely used [https://en.wikipedia.org/wiki/Time-sharing timesharing system].
=Chess Programs=
* [[Mac Hack]] <ref>[https://github.com/PDP-10/its/tree/master/src/chprog PDP-10/its · GitHub] (OCM 470 and accompanying files is a 1980 version of Mac Hack) maintained by [https://github.com/larsbrinkhoff Lars Brinkhoff] and [https://github.com/eswenson1 Eric Swenson]</ref>
* [[Paradise]]
* [[Patsoc]]
* [[Schach MV 5,6]]
* [[Tech#Tech2|Tech 2]] <ref>[https://github.com/PDP-10/its/tree/master/src/rg its/src/rg at master · PDP-10/its · GitHub] (Tech 2 source code) maintained by [https://github.com/larsbrinkhoff Lars Brinkhoff] and [https://github.com/eswenson1 Eric Swenson]</ref>
* [[Tyro]]
=See also=
* [[CHEOPS]]
* [[Bill Gosper#HAKMEM169|HAKMEM 169]] to [[Population Count|count the ones]] in a [[PDP-6]]/[[PDP-10]] 36-bit word
* [[Bill Gosper#HAKMEM175|HAKMEM 175]] by [[Bill Gosper]] for [[Traversing Subsets of a Set#Snoob|Subsets with equal Cardinality]]
* [[Honeywell 6000]]
* [[IBM 7090]]
* [[PDP-1]]
* [[PDP-6]]
* [[PDP-8]]
* [[PDP-11]]
=Selected Publications=
* [https://en.wikipedia.org/wiki/Gordon_Bell Gordon Bell], [[Alan Kotok]], [http://www.informatik.uni-trier.de/~ley/db/indices/a-tree/h/Hastings:Thomas_N=.html Thomas N. Hastings], [http://www.informatik.uni-trier.de/~ley/db/indices/a-tree/h/Hill:R=.html Richard Hill] ('''1978'''). ''[http://research.microsoft.com/en-us/um/people/gbell/Computer_Engineering/00000511.htm The Evolution of the DECsystem-10]''. [[ACM#Communications|Communications of the ACM]], Vol. 21, No. 1
=Forum Posts=
* [http://www.talkchess.com/forum/viewtopic.php?t=37938 MacHack under PDP-10 emulation] by [[Ian Osgood]], [[CCC]], February 03, 2011 » [[Mac Hack]]
=External Links=
* [https://en.wikipedia.org/wiki/PDP-10 PDP-10 from Wikipedia]
* [https://en.wikipedia.org/wiki/Programmed_Data_Processor Programmed Data Processor from Wikipedia]
* [https://en.wikipedia.org/wiki/DECSYSTEM-20 DECSYSTEM-20 from Wikipedia]
* [http://research.microsoft.com/en-us/um/people/gbell/Computer_Engineering/00000507.htm The PDP-10 Family], from [https://en.wikipedia.org/wiki/Gordon_Bell Gordon Bell's] site
* [http://www.columbia.edu/cu/computinghistory/pdp10.html The Digital Equipment Corporaton PDP-10]
* [http://www.inwap.com/pdp10/ Joe Smith's PDP-10 page] 36 bits forever!
* [http://ljkrakauer.com/LJK/60s/moby.htm Moby Memory] by [[Lawrence J. Krakauer]]
* [http://home.pipeline.com/~hbaker1/pdp-10/pdp-10.html PDP-10 Machine Language] » [[Assembly]], [[MIDAS]] <ref>MIT PDP-10 'Info' file converted to Hypertext 'html' format by [http://home.pipeline.com/~hbaker1/home.html Henry Baker]</ref>
* [http://ultimate.com/phil/pdp10/ Phil's PDP10 Miscellany Page]
* [http://pdp-10.trailing-edge.com/ Trailing-Edge - PDP-10 software archive]
* [http://www.computerhistory.org/collections/accession/102698013 LLNL Computer Museum - DEC PDP-10] from [[The Computer History Museum]]
: [http://archive.computerhistory.org/resources/text/dec/dec.digital_%28DEC%29_timeline_1957-1997.102630354/36-bit.htm 36-bit machines] from [[The Computer History Museum]]
: [http://www.computerhistory.org/collections/accession/102630582 PDP-10 Chess] from [[The Computer History Museum]]
: [http://www.computerhistory.org/collections/accession/102680472 PDP-10 Chess] from [[The Computer History Museum]]
* [http://ed-thelen.org/comp-hist/pdp-10.html PDP-10] by [http://ed-thelen.org/ Ed Thelen]
* [https://github.com/PDP-10 PDP-10 · GitHub]
* [http://bitsavers.informatik.uni-stuttgart.de/pdf/dec/pdp10/ /pdf/dec/pdp10] from [http://bitsavers.informatik.uni-stuttgart.de/ bitsavers.org]
=References=
<references />
'''[[Hardware|Up one Level]]'''
[[FILE:pdp10.jpg|border|right|thumb|link=http://archive.computerhistory.org/resources/text/dec/dec.digital_%28DEC%29_timeline_1957-1997.102630354/1967-1.htm|PDP-10 debut, September 1967 <ref>September 1967: The PDP-10 debuts, [http://archive.computerhistory.org/resources/text/dec/dec.digital_%28DEC%29_timeline_1957-1997.102630354/1967-1.htm PDP-10] from [[The Computer History Museum]]</ref> ]]
The '''PDP-10''' was a [https://en.wikipedia.org/wiki/Mainframe_computer mainframe computer] family manufactured and sold by [[Digital Equipment Corporation]] from 1967. Its architecture was an almost identical version of the earlier [[PDP-6]] architecture, sharing the same [https://en.wikipedia.org/wiki/36-bit 36-bit] word length and slightly extending the instruction set with improved hardware implementation. PDP-10 had 18-bit word addresses, in a so called supervisor mode, instruction addresses correspond directly to physical memory, In user mode, addresses are translated to physical memory. There are 16 general-purpose, 36-bit registers.
The PDP-10 was the foundation of the DECsystem-10 and the [https://en.wikipedia.org/wiki/DECSYSTEM-20 DECSYSTEM-20] and ran a variety of operating systems including [https://en.wikipedia.org/wiki/TOPS-10 TOPS-10], [https://en.wikipedia.org/wiki/Incompatible_Timesharing_System ITS], [https://en.wikipedia.org/wiki/WAITS WAITS], [http://www.encyclo.co.uk/define/TYMCOM-X TYMCOM-X], [https://en.wikipedia.org/wiki/TOPS-20#TENEX TENEX], and [https://en.wikipedia.org/wiki/TOPS-20 TOPS-20] <ref>[http://tenex.opost.com/hbook.html Origins and Development of TOPS-20] by [http://www.opost.com/dlm/ Dan Murphy]</ref>. TOPS-10 was the first widely used [https://en.wikipedia.org/wiki/Time-sharing timesharing system].
=Chess Programs=
* [[Mac Hack]] <ref>[https://github.com/PDP-10/its/tree/master/src/chprog PDP-10/its · GitHub] (OCM 470 and accompanying files is a 1980 version of Mac Hack) maintained by [https://github.com/larsbrinkhoff Lars Brinkhoff] and [https://github.com/eswenson1 Eric Swenson]</ref>
* [[Paradise]]
* [[Patsoc]]
* [[Schach MV 5,6]]
* [[Tech#Tech2|Tech 2]] <ref>[https://github.com/PDP-10/its/tree/master/src/rg its/src/rg at master · PDP-10/its · GitHub] (Tech 2 source code) maintained by [https://github.com/larsbrinkhoff Lars Brinkhoff] and [https://github.com/eswenson1 Eric Swenson]</ref>
* [[Tyro]]
=See also=
* [[CHEOPS]]
* [[Bill Gosper#HAKMEM169|HAKMEM 169]] to [[Population Count|count the ones]] in a [[PDP-6]]/[[PDP-10]] 36-bit word
* [[Bill Gosper#HAKMEM175|HAKMEM 175]] by [[Bill Gosper]] for [[Traversing Subsets of a Set#Snoob|Subsets with equal Cardinality]]
* [[Honeywell 6000]]
* [[IBM 7090]]
* [[PDP-1]]
* [[PDP-6]]
* [[PDP-8]]
* [[PDP-11]]
=Selected Publications=
* [https://en.wikipedia.org/wiki/Gordon_Bell Gordon Bell], [[Alan Kotok]], [http://www.informatik.uni-trier.de/~ley/db/indices/a-tree/h/Hastings:Thomas_N=.html Thomas N. Hastings], [http://www.informatik.uni-trier.de/~ley/db/indices/a-tree/h/Hill:R=.html Richard Hill] ('''1978'''). ''[http://research.microsoft.com/en-us/um/people/gbell/Computer_Engineering/00000511.htm The Evolution of the DECsystem-10]''. [[ACM#Communications|Communications of the ACM]], Vol. 21, No. 1
=Forum Posts=
* [http://www.talkchess.com/forum/viewtopic.php?t=37938 MacHack under PDP-10 emulation] by [[Ian Osgood]], [[CCC]], February 03, 2011 » [[Mac Hack]]
=External Links=
* [https://en.wikipedia.org/wiki/PDP-10 PDP-10 from Wikipedia]
* [https://en.wikipedia.org/wiki/Programmed_Data_Processor Programmed Data Processor from Wikipedia]
* [https://en.wikipedia.org/wiki/DECSYSTEM-20 DECSYSTEM-20 from Wikipedia]
* [http://research.microsoft.com/en-us/um/people/gbell/Computer_Engineering/00000507.htm The PDP-10 Family], from [https://en.wikipedia.org/wiki/Gordon_Bell Gordon Bell's] site
* [http://www.columbia.edu/cu/computinghistory/pdp10.html The Digital Equipment Corporaton PDP-10]
* [http://www.inwap.com/pdp10/ Joe Smith's PDP-10 page] 36 bits forever!
* [http://ljkrakauer.com/LJK/60s/moby.htm Moby Memory] by [[Lawrence J. Krakauer]]
* [http://home.pipeline.com/~hbaker1/pdp-10/pdp-10.html PDP-10 Machine Language] » [[Assembly]], [[MIDAS]] <ref>MIT PDP-10 'Info' file converted to Hypertext 'html' format by [http://home.pipeline.com/~hbaker1/home.html Henry Baker]</ref>
* [http://ultimate.com/phil/pdp10/ Phil's PDP10 Miscellany Page]
* [http://pdp-10.trailing-edge.com/ Trailing-Edge - PDP-10 software archive]
* [http://www.computerhistory.org/collections/accession/102698013 LLNL Computer Museum - DEC PDP-10] from [[The Computer History Museum]]
: [http://archive.computerhistory.org/resources/text/dec/dec.digital_%28DEC%29_timeline_1957-1997.102630354/36-bit.htm 36-bit machines] from [[The Computer History Museum]]
: [http://www.computerhistory.org/collections/accession/102630582 PDP-10 Chess] from [[The Computer History Museum]]
: [http://www.computerhistory.org/collections/accession/102680472 PDP-10 Chess] from [[The Computer History Museum]]
* [http://ed-thelen.org/comp-hist/pdp-10.html PDP-10] by [http://ed-thelen.org/ Ed Thelen]
* [https://github.com/PDP-10 PDP-10 · GitHub]
* [http://bitsavers.informatik.uni-stuttgart.de/pdf/dec/pdp10/ /pdf/dec/pdp10] from [http://bitsavers.informatik.uni-stuttgart.de/ bitsavers.org]
=References=
<references />
'''[[Hardware|Up one Level]]'''
