Difference between revisions of "KA10"

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The '''KA10''' was the first generation of [[PDP-10]] processors (themselves, exact re-implementations of the earlier [[PDP-6]] architecture). It was built out of discrete transistors, on [[DEC card form factor|short single]] [[FLIP CHIP]] cards.
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{{Infobox Machine
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| name = KA10
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| image = ka10.jpg
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| caption = KA10-based PDP-10 system
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| manufacturer = [[Digital Equipment Corporation]]
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| architecture = [[PDP-10]]
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| year design started = January, 1966
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| year first shipped = September, 1967
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| form factor = [[mainframe]]
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| word size = 36 bits
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| physical address = 18 bits (normal), 19/20 ([[Incompatible Timesharing System|ITS]] paging box), ?? ([[TENEX]] paging box)
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| virtual address = 18 bits
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| logic type = silicon [[transistor]]s and diodes
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| design type = asynchronous with hardware subroutines
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| instruction speed = 3 μsec (approximately - different instructions take different amounts of time, the CPU is not synchronous)
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| memory speed = 1.0 μsec (fast), 1.8 μsec (slow)
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| memory mgmt = dual [[base and bounds]] register pairs (non-customized machines)
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| operating system = Monitor, ITS, WAITS, TENEX
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| predecessor = [[PDP-6]]
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| successor = [[KI10]]
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| price = US$150K (CPU), US$300-700K (system)
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}}
  
It was used in the first [[DECsystem-10]] models, running [[TOPS-10]]. It was also the machine on which the [[ITS]] and [[TENEX]] [[operating system]]s were developed, after the machines were modified to provide [[paging]] (the KA10 normally only provided 'base and bounds' memory management hardware).
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[[Image:KA10FrontPanel.jpg|thumb|left|300px|The front panel of a KA10]]
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The '''KA10''' was the first generation of [[PDP-10]] [[Central Processing Unit|processors]] (themselves, exact re-implementations of the earlier [[PDP-6]] architecture). It was built out of discrete [[transistor]]s, on [[DEC card form factor|short single]] [[FLIP CHIP]] cards, plugged into large custom-wired [[backplane]]s.
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It had hardware support for [[time-sharing]] (two modes, 'User' and 'Executive'), as well as [[base and bounds]] [[memory management]] hardware. These were used in the first [[DECsystem-10]] models, running [[TOPS-10]].
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[[Image:KA10 mod end.jpg|150px|thumb|left|B-series FLIP CHIP used in the KA10 CPU]]
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It was also the machine on which the [[Incompatible Timesharing System|ITS]] and [[TENEX]] [[operating system]]s were developed, after the machines were modified to provide [[virtual memory|paging]].
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==See also==
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* [[KI10]]
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* [[KL10]]
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* [[KS10]]
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==External links==
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* [http://www.bitsavers.org/pdf/dec/pdp10/KA10/ BitSavers KA10 documents]
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* [http://www.bitsavers.org/pdf/dec/modules/KI10_moduleSchems_V1_Oct74.pdf PDP-10 module schematics Vol.1]
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* [http://www.bitsavers.org/pdf/dec/modules/KI10_moduleSchems_V2_Oct74.pdf PDP-10 module schematics Vol.2]
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[[Category: PDP-10 Processors]]

Latest revision as of 06:28, 6 September 2023


KA10
Ka10.jpg
KA10-based PDP-10 system
Manufacturer: Digital Equipment Corporation
Architecture: PDP-10
Year Design Started: January, 1966
Year First Shipped: September, 1967
Form Factor: mainframe
Word Size: 36 bits
Logic Type: silicon transistors and diodes
Design Type: asynchronous with hardware subroutines
Instruction Speed: 3 μsec (approximately - different instructions take different amounts of time, the CPU is not synchronous)
Memory Speed: 1.0 μsec (fast), 1.8 μsec (slow)
Physical Address Size: 18 bits (normal), 19/20 (ITS paging box), ?? (TENEX paging box)
Virtual Address Size: 18 bits
Memory Management: dual base and bounds register pairs (non-customized machines)
Operating System: Monitor, ITS, WAITS, TENEX
Predecessor(s): PDP-6
Successor(s): KI10
Price: US$150K (CPU), US$300-700K (system)


The front panel of a KA10

The KA10 was the first generation of PDP-10 processors (themselves, exact re-implementations of the earlier PDP-6 architecture). It was built out of discrete transistors, on short single FLIP CHIP cards, plugged into large custom-wired backplanes.

It had hardware support for time-sharing (two modes, 'User' and 'Executive'), as well as base and bounds memory management hardware. These were used in the first DECsystem-10 models, running TOPS-10.

B-series FLIP CHIP used in the KA10 CPU

It was also the machine on which the ITS and TENEX operating systems were developed, after the machines were modified to provide paging.

See also

External links