A Pascaline, a mechanical calculator devised by Blaise Pascal, mid 1600s. Pascal’s father was a tax
A Pascaline, a mechanical calculator devised by Blaise Pascal, mid 1600s. Pascal’s father was a tax collector, and needed a more efficient way to do his calculations. The machine can add, subtract, multiply, and divide (the multiplication and division is done by adding or subtracting over and over again). Louis XIV gave Pascal a patent to manufacture these calculators in France.{WHF} {HTE} -- source link
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