This key-driven, manual verifier has 15 black rubber keys. Twelve are for the 12 columns on a punch card. These are labeled from 0 to 9, X, and blank. Two other keys move the card one space, and the ...

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 gray desk-sized machine for ...

Thomas J. Watson Sr. and the company he created, IBM, are one of the great success stories in U.S. corporate history. Well before the computer age, when IBM sold typewriters and punch-card machines, ...

The Nazi census expert observing the Romanian census was Friedrich Burgdörfer, president of the Bavarian Office for Statistics in Munich. Ludwig Hümmer, an IBM punch-card expert working in IBM’s ...

On June 8, 1887, Herman Hollerith applied for US patent #395,781 for his punch card counting machine, a device considered to be among the foundations of the modern information processing industry and ...

Earlier this month, IBM celebrated its 100th birthday. It wasn't called IBM back in 1911, though: It was lumbered with the high-tech-for-its-time name of Computing-Tabulating-Recording Company, the ...