[John Graham-Cumming] might not be the first person to thumb ... on them that belonged to a computer school at the time. A Hackaday card, thanks to the online card punch It is hard to remember ...

The recent Supercon 6 badge, if you haven’t seen it, was an old-fashioned type computer with a blinky ... What most people did do, however, was punch cards. Technically, Hollerith cards ...