But these machines were by no means the first calculators, and [What Will Makes] shows us in detail the workings of a mechanical calculator. His machine is beautifully made with gears hand-cut ...

But these machines were by no means the first calculators, and [What Will Makes] shows us in detail the workings of a mechanical calculator. His machine is beautifully made with gears hand-cut ...

Interesting Fact: The production debut of the Arithmometer in 1851 launched the mechanical calculator industry. The Arithmometer was the only type of mechanical calculator commercialized from 1878 to ...

Wilhelm Schickard builds the first mechanical calculator in 1623. It can work with six digits, and carries digits across columns. It works, but never makes it beyond the prototype stage.

Babbage's machines include a mechanical calculator called the "Difference Engine" which started its development in 1823 following £1,700 in funding from the British government, who wound up ...