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The abacus is a percussion instrument that is used to carry out simple and more complex operations.
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They were developed to perform multiplication, division, and square roots.
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Wilhelm Schickard built the first mechanical calculator. This one used watch parts.
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It was the first calculator that worked on wheels and gears, invented by Blaise Pascal.
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Gottfired Leibniz created a machine that in addition to adding, subtracting, multiplying and dividing, could square.
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Were the first electronic calculating devices.
