Image 8 of Plate, punch card, and instructions for Herman Hollerith's Electric Sorting and Tabulating Machine, ca. 1895.

Herman Hollerith's Tabulating Machine, Warehouse 13 Artifact Database Wiki

Hollerith patents the electric tabulating system, January 8, 1889 - EDN

Punched card - Wikiwand

Plate, punch card, and instructions for Herman Hollerith's Electric Sorting and Tabulating Machine, ca. 1895 - LOC's Public Domain Archive Public Domain Search

Punched cards from Korsakov, Babbage, Hollerith to IBM and computers - KASS

3.1 Hollerith's punchcard machine

National Museum of American History

The Hollerith Machine - History - U.S. Census Bureau

Image 8 of Plate, punch card, and instructions for Herman Hollerith's Electric Sorting and Tabulating Machine, ca. 1895.

1,003 Tabulating Machine Stock Photos, High-Res Pictures, and Images - Getty Images

HNF - Herman Hollerith (1860-1929)

Punched card - Computer Science

Hollerith's Electromechanical Punched Card Tabulating Machine, Ancestor of IBM : History of Information

National Museum of American History

Hollerith's Electromechanical Punched Card Tabulating Machine, Ancestor of IBM : History of Information