and [What Will Makes] shows us in detail the workings of a mechanical calculator. His machine is beautifully made with gears hand-cut from plywood, and follows a decimal design in which the ...

This year marks 60 years since the birth of the first Casio electronic desktop calculator, the 001, in 1965. This pioneering ...

The calculator has a unique design. It looks like a simple calculator in a wallet. But the wallet opens to reveal an extended keyboard with all the scientific features onboard. Unsurprisingly ...