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 90-column punch card has columns ...

Will your data still be readable in half a century? The State of Storage As storage media grows denser and more complex over time, it's worth remembering that older formats were sometimes far more ...

JACKSON, Mo. -- The presidential deadlock in Florida has raised questions about the accuracy of punch-card voting systems nationwide, but Cape Girardeau County Clerk Rodney Miller is confident about ...