I built a card reader interfaced with a LCD and Microcontroller. It displays the name of the person on the LCD to confirm identity when a card is inserted. It’s a simple prototype of card identifiers ...
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 wallet-sized card shows punched ...
Four separate manuals concerning IBM Electric Punched Card Accounting Machines held together into a single tome. The first manual is Principles of Operation, Card Punch Type 24, Printing Punch Card ...
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