Casio fx-92 IT History Society
The Casio fx-92 is a scientific calculator with 12 digits precision and formula input logic. It has an unknown number of functions, 50 keys and an LCD (liquid crystal) display. The power source is 2xAA batteries. The calculator was manufactured in Japan.
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The Calculators Brief History: When was the calculator invented
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National Museum of American History
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History 1980
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