FUJIC
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FUJICwas the first electronic digitalcomputerin operation inJapan.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 byFuji,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 1,700vacuum tubes,the computer'swordlength was 33bits.[2]It had anultrasonicmercurydelay-line memoryof 255 words, with an average access time of 500microseconds.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 inOdawara,it was given later toWaseda Universitybefore taking up residence in theNational Science Museum of JapaninTokyo.
See also[edit]
References[edit]
- ^"tcm.computerhistory.org"(PDF).Retrieved2017-09-18.
- ^"COMPUTERS, OVERSEAS: 5. Fujic. (Fuji Photo Film Ltd., Japan)".Digital Computer Newsletter.8(1): 17–18. Jan 1956. Archived fromthe originalon April 6, 2019.
References and external links[edit]
- FUJIC at the IPSJ Computer Museum
- Dr. Okazaki Bunji at the IPSJ Computer Museum
- FUJIC at the National Science Museum of Japanat theWayback Machine(archived 17 March 2012)
- FUJIC's mercury delay line memory at the National Science Museum of Japanat theWayback Machine(archived 17 March 2012)
- Raúl Rojas and Ulf Hashagen, ed.The First Computers: History and Architectures.2000, MIT Press,ISBN0-262-18197-5.
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