The Local Computer Network in Tohoku District, Japan

Masunaga, Y. (1975). The Local Computer Network in Tohoku District, Japan. IIASA Working Paper. IIASA, Laxenburg, Austria: WP-75-102

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Abstract

This Working Paper gives an outline of the local computer network in the Tohoku district of Japan, in which the design and implementation I participated in during 1974 at the Research Institute of Electrical Communication, Tohoku University, Japan.

At present IIASA is planning its own inter-European computer network, which will be able to interconnect with many existing computer networks, including EIN and those existing in Eastern Europe.

This program has already commenced with the interconnection of three computer centres, IIASA, Bratislava (Czechoslovakia) and Budapest (Hungary) using a European public switched telephone line. It is planned to use: a line switching technique to interconnect two computer centres; packets as a unit of information transmission on telephone lines; an asynchronous serial data transmission technique; a half duplex communication facility; and 1200 baud communication speed.

I should mention here that the above techniques, computer centre facilities and the topological location of the computer centres are very similar to the computer network in the Tohoku district, and this is the reason why I am writing this paper. I will describe briefly the design of this computer network, which consists of the following five sections.

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