The Power of the Punch Card (and the Punch Card Operator) - UMN Libraries News & Events

Machines and people have been working together for decades, perhaps more than you had thought, to keep University information technology systems running. The people operating punch card and tabulating machines, the majority of whom were women, most likely did not see their role as one of managing information technology.

Making Sense of the Census: Hollerith's Punched Card Solution

DUCC, TUCC, and the origins of digital computing in North Carolina

Punch Cards for Data Processing

Making Punch Card Programming A Snap

Canton Observer for September 17, 1990 - Canton Public Library

Interfaces Volume 2 (2021), CHARLES BABBAGE INSTITUTE

The Surprisingly Long Life of the Punch Card - IEEE Spectrum

Babbage and his machines - Carlo Randone - 14 dec 2015

National Museum of American History

Punch cards enter business vernacular - WiredPen

Early Card Punch Machines

Order 0/ eveNts - University of Minnesota Digital Conservancy