For much of the 20th century, data was entered into data processing machines using punched cards. This is a machine for punching such cards manufactured by International Business Machines Corporation ...

For the first half of the 20th century, much data was entered into data processing machines using punched cards. This machine for punching such cards was manufactured by International Business ...

Although [Simon Boak] had no use for an automatic paper tape punch, this was one of those intrusive project thoughts that had to be put to rest. With not a lot of DIY projects to look at, the first ...