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 ...

Berry. But the history of computing started centuries earlier. For example, in 1493 Leonardo da Vinci drew a sketch of what appears to be a mechanical calculator. And the first calculating machine ...