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Calculator 120 years ago

We have seen before mechanical calculators, but certainly not something like “Millionaire Machine”. Designed by Otto Steiger, a Swiss engineer 1892, the mechanism of Machine Millionaire can make addition, multiplication, Division and subtraction, a display 8 bits. And all those directly, with the simple flick and spin a few levers – something surreal about the season. Although the price was too high (about 1.000 USD – as a car then), calculator Millionaire sold more than 5.000 pieces until 1935.

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