Hollerith's invention consisted of a card reader, a gear driven mechanism which could count using Pascal's mechanism, and a large wall of dial indicators displaying results. 1889, a patent was issued for Hollerith tabulating machine. In 1896 Herman Hollerith started the Tabulating Machine Company, the company later became the well-known computer company IBM.Hollerith's invention consisted of a card reader, a gear driven mechanism which could count using Pascal's mechanism, and a large wall of dial indicators displaying results. 1889, a patent was issued for Hollerith tabulating machine. In 1896 Herman Hollerith started the Tabulating Machine Company, the company later became the well-known computer company IBM.
Hollerith's invention consisted of a card reader, a gear driven mechanism which could count using Pascal's mechanism, and a large wall of dial indicators displaying results. 1889, a patent was issued for Hollerith tabulating machine. In 1896 Herman Hollerith started the Tabulating Machine Company, the company later became the well-known computer company IBM.