How Long Did It Take Hollerith Machine To Process The 1890 Census?
How Long Did It Take Hollerith Machine To Process The 1890 Census? Hollerith astounded Census Bureau officials by completing the task in just 5.5 hours! Herman Hollerith’s impressive results earned him the contract to process and tabulate 1890 census data. How long did it take to compute 1880 census with the the Hollerith census machine?