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           History of Computing in Japan 
 from 1500 onwards This chapter is a narrative on the higlights of historic computing events in Japan Computing, in the sense of the main time line, in Japan started probably with the adoptation of the Soroban or Abacus as it is known in western countries.  | 
      
The Abacus is 
  introduced in Japan from the mainland of China

Fujitsu 
  Ltd. put the first Japanese computer on the marked: the Facom-100.
Fuji Photo Film Co. in Japan 
  develops a 1,700- vacuum-tube computer for lens design calculations.
Nippon Telegraph and Telephone 
  Corp. develops the Musasino-1, the first parametron computer. It uses 519 vacuum 
  tubes and 5,400
  parametrons—logic elements based on the principle of parametric excitation 
  and invented by Eiji Goto in 1954.
 
Japan’s Electrotechnical 
  Laboratory develops a transistor computer, the ETL Mark III, that uses 130 transistors 
  and 1,700 diodes.
In Japan a computer 
  based on the principle of the parametron was produced: 
  HIPAC. The parametron principle was technological a completely 
  unknown phenomena. (see also 1954 and Masusino 
  and Principle of Parametron). The machine 
  has a magnetic drum as memory.
 
The 
  parametron computer PC-1 is constructed, 
  shown is the machine in the spring of 1958 when it was operating but not yet 
  completed. Eiichi Goto is on the right; Hidetosi Takahasi on the left.(19)
  
NEC starts to 
  build electronic computers: NEC 1101 and 1102
In June, Japan’s 
  first commercial transistor computer, NEC Corp.’s NEAC 2201, is demonstrated 
  at an exhibition in Paris.
At Texas Instruments, 
  Jack Kilby, Jerry Merryman, and James Van Tassel invent a four-function handheld 
  calculator. This is the result of a project initiated by Busicom. A Japanes 
  frirm that gave the assignment to T.I. to develop a calculator. Busicom in the 
  meanwhile goes out of business and T.I. further develops the microprocessor. 
  This results into the explosive growth of the micro computer industry.
Japan grabs a 
  big piece of the chip market by producing chips with 64 Kbits of memory.
Japan launches 
  its “fifth generation” computer project, focusing on artificial 
  intelligence.
The CD-ROM, introduced 
  by Sony and Philips, provides significantly greater storage capacity for digital 
  data. Eventually the CD will make the 3.5" floppy almost obsolete.
 
NEC manufactures 
  a 256-Kbit chip, and IBM introduces a 1-Mbit RAM chip.
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| Last Updated on 1 July, 2004 | For suggestions please mail the editor in chief | 
  
  
  Footnotes & References
| 1 | computer.org | 
| 2 | archives and timeline THOCP |