An 11-punch with a digit indicated a negative number ... We occasionally see new card readers. They rarely, though, work with standard cards.

Considering you just can’t go down to Fry’s and buy an IBM 80-column punch card reader, we’re loving [digitatrails]’ clever way of getting data off an otherwise unreadable storage medium.

Punch cards were fed into computers by card readers. Punch cards were synonymous with data processing for about 80 years. Concepts were simple: the database was the file cabinet; a record was a ...

Scan and parse a card-image at The Virtual Card Reader! New: Batch punch, read and process cards using the Virtual Card Read-Punch! A long, long, long, long time ago Before the chips, before the ...