insider.si.edu

IBM Verifier for Punched Cards

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 ...
insider.si.edu

IBM manuals for Electric Punched Card Accounting Machines

Four separate manuals concerning IBM Electric Punched Card Accounting Machines held together into a single tome. The first manual is Principles of Operation, Card Punch Type 24, Printing Punch Card ...
ExtremeTech

Photo tour: 100 years of IBM, from punch cards to Watson

Earlier this month, IBM celebrated its 100th birthday. It wasn't called IBM back in 1911, though: It was lumbered with the high-tech-for-its-time name of Computing-Tabulating-Recording Company, the ...
The Forward

IBM and the Gypsy Holocaust

The Nazi census expert observing the Romanian census was Friedrich Burgdörfer, president of the Bavarian Office for Statistics in Munich. Ludwig Hümmer, an IBM punch-card expert working in IBM’s ...
Hackaday

punched cards

The recent Supercon 6 badge, if you haven’t seen it, was an old-fashioned type computer with a blinky light front panel. It was reminiscent of an Altair 8800, a PDP-11, or DG Nova. However, even back ...