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

Tabulating Machines

Punch cards enter business vernacular - WiredPen

Herman Hollerith - History - U.S. Census Bureau

Tabulating Machine - History-Computer

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

Hollerith Tabulating Machines

Image 9 of Plate, punch card, and instructions for Herman Hollerith's Electric Sorting and Tabulating Machine, ca. 1895.

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

Tabulating machine - Wikipedia

Tabulating Machines

Herman Hollerith - Wikipedia

Punched card - Wikiwand

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