![]() Initially the high cost of the leading edge electronics used in the early hand-held calculators meant that the price of these calculators was also very high. ![]() The world was astounded when the first pocket electronic calculators became available in the shops and enabled anyone who could afford one toĬarry a means to instant answers to their mathematical needs. However, technology was developing very rapidly and there followed in late 1970/early 1971 much more pocketable models from Canon, Sanyo, and Sharp, and the first truly pocket calculator, the Busicom LE-120A. in mid-1970, and around the same time Sanyo brought out the ICC-0081 (in the Portable Electronic Calculator Section) and ICC-82D, with Canon introducing the Pocketronic.Īll of these models, which are featured here, can be used hand-held and remote from AC power, but are much too large to be called pocket calculators. ![]() Thus Sharp produced the QT8-B, which was advertised in the U.S.A. Then by replacing the AC power section with rechargeable batteries the first hand-held calculators were produced. The fascinating story of the development of miniature electronics for calculators and the competing companies involved is told in the section "The Race to Make a Pocket Calculator" on this site.īy 1969 several companies had produced AC-powered calculators employing just a handful of integrated circuits which had a low power requirement, such as Sharp of Japan with the QT8-D desktop calculator. So electronic calculators became smaller and also their power consumption So electronic calculators were then very large, consumed a lot of power, and only AC-powered desktop models were available.Īs integrated circuits were developed it was possible to squeeze more and more functionality into fewer and fewer chips. Featured Electronic Hand-held Calculators:Ī study of the Featured Desktop Electronic Calculators section shows that through the 1960s large numbers of electronics components were required in a calculator.
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