NORD-20 - Revision history

Tingo: added more text about the NORD-20

2019-10-21T14:44:22Z

added more text about the NORD-20

← Older revision		Revision as of 14:44, 21 October 2019
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	First installed system in January 1972. In August 1974 a total of 43 systems had been installed<ref name="CnP">Computers and People, September 1974</ref>.		First installed system in January 1972. In August 1974 a total of 43 systems had been installed<ref name="CnP">Computers and People, September 1974</ref>.

			The NORD-20 was introduced in 1971. This computer provides very fast interrupt handling and is very well suited for data communications, multi-computer applications and process control.<ref>[http://sintran.com/sintran/library/libsw/NORD-10-Design-Goals.pdf Norsk Data library, Software Nord-10 Design Goals (TSS-02)]</ref>

	==Comparision with NORD-10==		==Comparision with NORD-10==

Gandalf: Fixed a reference

2019-04-18T19:51:47Z

Fixed a reference

← Older revision		Revision as of 19:51, 18 April 2019
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	The '''NORD-20''' is almost identical with the [[NORD-2B]]. Compared to later models of NORD-2B the NORD-20 is electrically the same but the CPU is contained on six boards instead of ten.<ref>[https://drive.google.com/open?id=0B2Sc5Qa5d_tLM0hmVUxHekcyUUU ND-Nytt #7, May 1973] page 12.</ref> It is smaller physically than the NORD-10<ref name="picture">[http://digitaltmuseum.no/021015466860 Picture in the collections of Oslo Museum]</ref>. The NORD-20 was released before the NORD-10.		The '''NORD-20''' is almost identical with the [[NORD-2B]]. Compared to later models of NORD-2B the NORD-20 is electrically the same but the CPU is contained on six boards instead of ten.<ref>[https://drive.google.com/open?id=0B2Sc5Qa5d_tLM0hmVUxHekcyUUU ND-Nytt #7, May 1973] page 20-21.</ref> It is smaller physically than the NORD-10<ref name="picture">[http://digitaltmuseum.no/021015466860 Picture in the collections of Oslo Museum]</ref>. The NORD-20 was released before the NORD-10.
	[[Image:NORD-20-office.jpg \|300px \| thumb \| NORD-20 in an office settings with [[ASR-33]] terminal, Centronics printer, [[Facit 4070]] punch and a card reader]]		[[Image:NORD-20-office.jpg \|300px \| thumb \| NORD-20 in an office settings with [[ASR-33]] terminal, Centronics printer, [[Facit 4070]] punch and a card reader]]

Gandalf: Added info about a remaining machine.

2016-08-30T07:57:46Z

Added info about a remaining machine.

← Older revision		Revision as of 07:57, 30 August 2016
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	~~Little is known about the~~ '''NORD-20'''~~. It seems to be a slimmed down~~ [[NORD-10]] ~~as it~~ is smaller physically than the NORD-10<ref name="picture">[http://digitaltmuseum.no/021015466860 Picture in the collections of Oslo Museum]</ref>. The NORD-20 was released before the NORD-10.		The '''NORD-20''' is almost identical with the [[NORD-2B]]. Compared to later models of NORD-2B the NORD-20 is electrically the same but the CPU is contained on six boards instead of ten.<ref>[https://drive.google.com/open?id=0B2Sc5Qa5d_tLM0hmVUxHekcyUUU ND-Nytt #7, May 1973] page 12.</ref> It is smaller physically than the NORD-10<ref name="picture">[http://digitaltmuseum.no/021015466860 Picture in the collections of Oslo Museum]</ref>. The NORD-20 was released before the NORD-10.
	[[Image:NORD-20-office.jpg \|300px \| thumb \| NORD-20 in an office settings with [[ASR-33]] terminal, Centronics printer, [[Facit 4070]] punch and a card reader]]		[[Image:NORD-20-office.jpg \|300px \| thumb \| NORD-20 in an office settings with [[ASR-33]] terminal, Centronics printer, [[Facit 4070]] punch and a card reader]]

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	\| Price for typical system \|\| 2.000.000 NOK \|\| 500.000 NOK		\| Price for typical system \|\| 2.000.000 NOK \|\| 500.000 NOK
	\|}		\|}

			==Remaining machines==
			This is a first shot at a list of remaining machines. Also machines that is known to be lost will be listed to make it easier to locate remaining ones. We don't have any production numbers yet.

			* NORD-20 with unknown serial is in the collection of Trøim, in Telemuseums storage in Fetsund (2016 inventory).

	== References ==		== References ==

Gandalf: Fixing my stupid mistake... :-)

2016-08-22T15:17:44Z

Fixing my stupid mistake... :-)

← Older revision		Revision as of 15:17, 22 August 2016
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	! !! NORD-10 !! NORD-20		! !! NORD-10 !! NORD-20
	\|-		\|-
	\| Cycle time \|\| 1.0 us \|\| 0.4-0.8 us		\| Cycle time \|\| 0.4-0.8 us \|\| 1.0 us
	\|-		\|-
	\| Word length \|\| 16 \|\| 16		\| Word length \|\| 16 \|\| 16
	\|-		\|-
	\| Memory size \|\| 4-16 kWord \|\| 8-~~256~~ kWord		\| Memory size \|\| 8-256 kWord \|\| 4-16 kWord
	\|-		\|-
	\| Price basic system \|\| 78.000 NOK \|\| ~~200~~.000 NOK		\| Price basic system \|\| 200.000 NOK \|\| 78.000 NOK
	\|-		\|-
	\| Price for typical system \|\| ~~500~~.000 NOK \|\| ~~2.000~~.000 NOK		\| Price for typical system \|\| 2.000.000 NOK \|\| 500.000 NOK
	\|}		\|}

Gandalf: Added some data

2016-08-20T09:40:05Z

Added some data

← Older revision		Revision as of 09:40, 20 August 2016
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	First installed system in January 1972. In August 1974 a total of 43 systems had been installed<ref name="CnP">Computers and People, September 1974</ref>.		First installed system in January 1972. In August 1974 a total of 43 systems had been installed<ref name="CnP">Computers and People, September 1974</ref>.

			==Comparision with NORD-10==
			The following comparision was made in August 1973.<ref>[http://www.bcl-computers.org.uk/survey.htm Computer manufacturing survey from 1973]</ref>
			{\| class="wikitable"
			\|-
			! !! NORD-10 !! NORD-20
			\|-
			\| Cycle time \|\| 1.0 us \|\| 0.4-0.8 us
			\|-
			\| Word length \|\| 16 \|\| 16
			\|-
			\| Memory size \|\| 4-16 kWord \|\| 8-256 kWord
			\|-
			\| Price basic system \|\| 78.000 NOK \|\| 200.000 NOK
			\|-
			\| Price for typical system \|\| 500.000 NOK \|\| 2.000.000 NOK
			\|}

	== References ==		== References ==

Gandalf: Initial page

2016-08-18T22:08:21Z

Initial page

New page

Little is known about the '''NORD-20'''. It seems to be a slimmed down [[NORD-10]] as it is smaller physically than the NORD-10<ref name="picture">[http://digitaltmuseum.no/021015466860 Picture in the collections of Oslo Museum]</ref>. The NORD-20 was released before the NORD-10.
[[Image:NORD-20-office.jpg |300px | thumb | NORD-20 in an office settings with [[ASR-33]] terminal, Centronics printer, [[Facit 4070]] punch and a card reader]]

First installed system in January 1972. In August 1974 a total of 43 systems had been installed<ref name="CnP">Computers and People, September 1974</ref>.

== References ==
<references/>

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