Invented by Leonardo Torres in 1920, the Torres calculating machine is a machine that solves essential addition, subtraction, multiplication, and division problems using a simple manner. It was a ...

“The first digital use of the transistor for consumers was in a calculator,” says Rick Bensene, curator of the Old Calculator Web Museum. Our series on the birth of the transistor — and with it, the ...

In 1867, Frederick A. P. Barnard, a mathematician and the president of Columbia University in New York, served as a judge at the Exposition universelle, a world’s fair held in Paris. There he saw a ...

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 full-keyboard manually operated ...

One of the world's first calculating machines will not go to auction as scheduled in France, after a Paris court provisionally blocked the historic item from being exported. Auction house Christie's ...

La Pascaline, the first mechanical calculator [AFP via Getty Images] One of the world's first calculating machines will not go to auction as scheduled, France, after a Paris court provisionally ...