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 ...

For years I’ve had a crystal clear memory of photographing election workers as they counted punch card ballots. I recalled it in black and white, so that narrowed the search window down to the ...

This article may contain affiliate links that Yahoo and/or the publisher may receive a commission from if you buy a product or service through those links. The spring semester is officially in full ...

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 paper, unused punch card is tan ...