26 févr. 1890 - 1890, Herman Hollerith’s tabulator
Description:
Herman Hollerith designs a punch card system to calculate the 1880 census, accomplishing the task in just three years and saving the government $5 million. He establishes a company that would ultimately become IBM.Ajouté au bande de temps:
Date:
26 févr. 1890
Maintenaint
~ Il y a 135 ans