|Manufactured by||Tokyo Shibaura Electric Co., Ltd. (Now, TOSHIBA Corporation)|
|Owner||Rakuhoku Campus, Kyoto Computer Gakuin|
|Location of historical materials||KCG Computer Museum, Kyoto Computer Gakuin, 10-5 Nishi-Kujo-Teranomae-machi, Minami-ku, Kyoto-shi, Kyoto 601-8407 Japan|
|Visitor information||Open to the public (Reservation required)|
|Contact||General Affairs Department, Kyoto Computer Gakuin Tel.+81-75-762-2030 http://www.kcg.ac.jp/en/|
TOSBAC-1100D was one of the models of TOSBAC-1100 series developed by Tokyo Shibaura Electric (Now, Toshiba Corporation). TOSBAC-1100 series computers were early office computers the first model of which was announced in June, 1963, and TOSBAC-1100D model was announced in April, 1964.
It was an external program computer that read and executed instructions on punched paper tape, one by one. It adopted transistors, diodes, magnetic core for main components, and was equipped with a typewriter, a processor, a program reader (a paper tape reader), a data punch (a paper tape punch), and a data reader (a paper tape/edge card reader).
The monthly rental fee was decided to be JPY77,000 so that a small business could afford to buy it. Furthermore, the operational conditions were less severe than general computers. The operating temperature range was 20±15℃, and the voltage and the frequency of power supplied were 100±10 volts and 50Hz/60Hz, respectively.