Chris Fenton hopes to build a working electromechanical computer out of parts made by a 3D printer. He has currently developed a working prototype of a punch card reader. Chris Fenton hopes to build a ...

Punch card data input is so 1890 US Census, right? Maybe not, if your goal is to educate kids about binary numbers and how they can encode characters. In which case, this paper clip and metal tape ...

(1) See loyalty punch card. (2) An early storage medium made of thin cardboard stock that held data as patterns of punched holes. Also called "punched" cards, each of the 80 or 96 columns held one ...

We think of punched cards as old-fashioned, but still squarely part of the computer age. Turns out, cards were in use way before they got conscripted by computers. Jacquard looms are one famous ...

Over at Royal Pingdom there’s a fascinating little picture history of computer storage from the year dot nearly up to the present day. Who knew that hard disks were once the size of a small car? Not ...

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 ...

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 cream-colored eighty-column ...

In an optimistic move, you grabbed a loyalty card before the first exercise class you took. Interestingly, no holes have been punched here, because you left the gym during the class’s warmup, when ...