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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.
Computerworld

IBM’s nanotech punch-cards hit terabit density

A new nanotechnology take on the old punch-card storage system has enabled IBM Corp. researchers to demonstrate a data storage density of one trillion bits (1T bit) per square inch — 20 times higher ...
insider.si.edu

IBM Australia 760068 Punch Cards for the New South Wales Institute of Technology Computer ...

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 two cream-colored eighty-column ...