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 ...

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 ...

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 ...

Frustrated by human error, mathematician and inventor Charles Babbage designed a machine to perform mathematical functions and automatically print the results. Library of Congress When today’s number ...

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 ...

A DISPLAY of calculating machines was arranged early this month by the Burroughs Adding Machine, Ltd.,at 136 Regent Street, London, W.I. The machines shown were of many types, ranging from the simpler ...