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IBM 827213 Punch Cards for the Electronic Computer Project at Princeton University

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Two IBM 80-column punch cards, tan.
insider.si.edu

Punch Cards Associated with the Computer Solution of the Four-Color Problem

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. These are some of the punched cards ...
Hackaday

Tweet Messages From Punch Cards

It all started with a conversation about the early days of computing. The next thing he knew, [Tim Jagenberg’s] colleague gave him a stack of punch cards and a challenge. [Tim] attempted to read them ...
Hackaday

punch card

What a beautiful thing it is to see this digital computer in action. [Chris Fenton] did an amazing job of designing and printing this mechanical digital computer. If you’re interested in one to call ...