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 ...

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 ...

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A "memory system" capable of storing 64,000 digits and leading a computing machine through a complex mathematical problem of 4000 steps was shown at the unveiling of Harvard University's new Mark III ...

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 manually operated, non-printing ...

Charles Babbage is widely recognized as a pioneer of the programable computer due to his ingenious designs for steam-driven calculating machines in the 19th century. But Babbage drew inspiration from ...