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{{more footnotes|date=February 2016}}[[File:FUJIC 1956 National Museum of Nature and Science 2.jpg|thumb|FUJIC]] |
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[[File:FUJIC 1956 National Museum of Nature and Science 2.jpg|thumb|FUJIC]] |
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'''FUJIC''' was the first electronic digital [[computer]] in operation in [[Japan]]. |
'''FUJIC''' was the first electronic digital [[computer]] in operation in [[Japan]]. It was finished in March 1956, the project having been effectively started in 1949, and was built almost entirely by Dr. Okazaki Bunji.<ref name="urltcm.computerhistory.org">{{cite web |url=http://tcm.computerhistory.org/reports/TCMReportFall-Winter1985.pdf |title=tcm.computerhistory.org |access-date=2017-09-18}}</ref> Originally designed to perform calculations for lens design by [[Fujifilm|Fuji]], the ultimate goal of FUJIC's construction was to achieve a speed 1,000 times that of human calculation for the same purpose – the actual performance achieved was double that number. |
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Employing approximately 1,700 [[vacuum tube]]s, the computer's [[Word (computer architecture)|word]] length was 33 |
Employing approximately 1,700 [[vacuum tube]]s, the computer's [[Word (computer architecture)|word]] length was 33 [[bit]]s.<ref>{{cite journal |title=COMPUTERS, OVERSEAS: 5. Fujic. (Fuji Photo Film Ltd., Japan) |journal=Digital Computer Newsletter |date=Jan 1956 |volume=8 |issue=1 |pages=17–18 |url=http://www.dtic.mil/docs/citations/AD0694619 |archive-url=https://web.archive.org/web/20190406120028/http://www.dtic.mil/docs/citations/AD0694619 |url-status=dead |archive-date=April 6, 2019 |language=en }}</ref> It had an [[Ultrasound|ultrasonic]] mercury [[delay-line memory]] of 255 words, with an average access time of 500 [[microsecond]]s. An addition or subtraction was clocked at 100 microseconds, multiplication at 1,600 microseconds, and division at 2,100 microseconds. |
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Used extensively for two years at the Fuji factory in [[Odawara]], it was given later to [[Waseda University]] before taking up residence in the [[National Museum of Nature and Science|National Science Museum of Japan]] in [[Tokyo]]. |
Used extensively for two years at the Fuji factory in [[Odawara]], it was given later to [[Waseda University]] before taking up residence in the [[National Museum of Nature and Science|National Science Museum of Japan]] in [[Tokyo]]. |
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==See also== |
==See also== |
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*[[MUSASINO-1]] |
* [[MUSASINO-1]] |
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*[[List of vacuum |
* [[List of vacuum-tube computers]] |
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==References== |
==References== |
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* {{webarchive |url=https://web.archive.org/web/20120317020345/http://shinkan.kahaku.go.jp/kiosk/kioskviewer.cgi?floor=A2&chunk=18&lang=EN&type=K2&page=05 |date=17 March 2012 |title=FUJIC's mercury delay line memory at the National Science Museum of Japan}} |
* {{webarchive |url=https://web.archive.org/web/20120317020345/http://shinkan.kahaku.go.jp/kiosk/kioskviewer.cgi?floor=A2&chunk=18&lang=EN&type=K2&page=05 |date=17 March 2012 |title=FUJIC's mercury delay line memory at the National Science Museum of Japan}} |
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* Raúl Rojas and Ulf Hashagen, ed. ''The First Computers: History and Architectures''. 2000, MIT Press, {{ISBN|0-262-18197-5}}. |
* Raúl Rojas and Ulf Hashagen, ed. ''The First Computers: History and Architectures''. 2000, MIT Press, {{ISBN|0-262-18197-5}}. |
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{{Fujifilm}} |
{{Fujifilm}} |
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{{Mainframes}} |
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{{DEFAULTSORT:Fujic}} |
{{DEFAULTSORT:Fujic}} |
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[[Category:Early computers]] |
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[[Category:One-of-a-kind computers]] |
[[Category:One-of-a-kind computers]] |
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[[Category:Vacuum tube computers]] |
[[Category:Vacuum tube computers]] |
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Latest revision as of 13:24, 2 November 2022
 | This article includes a list of general references, but it lacks sufficient corresponding inline citations. (February 2016) |
FUJIC was the first electronic digital computer in operation in Japan. It was finished in March 1956, the project having been effectively started in 1949, and was built almost entirely by Dr. Okazaki Bunji.[1] Originally designed to perform calculations for lens design by Fuji, the ultimate goal of FUJIC's construction was to achieve a speed 1,000 times that of human calculation for the same purpose – the actual performance achieved was double that number.
Employing approximately 1,700 vacuum tubes, the computer's word length was 33 bits.[2] It had an ultrasonic mercury delay-line memory of 255 words, with an average access time of 500 microseconds. An addition or subtraction was clocked at 100 microseconds, multiplication at 1,600 microseconds, and division at 2,100 microseconds.
Used extensively for two years at the Fuji factory in Odawara, it was given later to Waseda University before taking up residence in the National Science Museum of Japan in Tokyo.
See also
[edit]References
[edit]- ^ "tcm.computerhistory.org" (PDF). Retrieved 2017-09-18.
- ^ "COMPUTERS, OVERSEAS: 5. Fujic. (Fuji Photo Film Ltd., Japan)". Digital Computer Newsletter. 8 (1): 17–18. Jan 1956. Archived from the original on April 6, 2019.
References and external links
[edit]
Wikimedia Commons has media related to FUJIC.
- FUJIC at the IPSJ Computer Museum
- Dr. Okazaki Bunji at the IPSJ Computer Museum
- FUJIC at the National Science Museum of Japan at the Wayback Machine (archived 17 March 2012)
- FUJIC's mercury delay line memory at the National Science Museum of Japan at the Wayback Machine (archived 17 March 2012)
- Raúl Rojas and Ulf Hashagen, ed. The First Computers: History and Architectures. 2000, MIT Press, ISBN 0-262-18197-5.
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