"Hermann Hollerith" . . . . "Hollerith, Herman" . "1929-11-17" . . . . . . "1860" . . . . . . . . . . . . . . . . "Hollerith machines" . . . . . . . . . "Hollerith's" . . . "1929" . . . "Herman Hollerith" . . "Herman_Hollerith#Electromechanical_tabulation_of_data" . . "Herman Hollerith's" . . . . . . . . "punched card" . . . . . . . . "Hollerith" . . . . . "Herman Hollerith" . "IBM" . . . . . . . . . . . . . . . . "Herman Hollerith#Further reading" . . . . . . "1860-02-29" . . .