When we talk about a “computer” today, we generally picture an electronic machine that can perform various kinds of mathematical operations, manage its program flow, move data from one place to ...

The machine of the Italian Luigi Torchi from Milan was the first full-keyboard/direct multiplication machine in the world, moreover, it was the first practical keyboard calculator, as the earlier ...

For most of human history, doing arithmetic, while sometimes aided by devices like the abacus or adders, was fundamentally an act of human intelligence. In the 17th and 18th century, a few natural ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This stylus-operated non-printing ...