Tags » Herman Hollerith

Tech History

January 8, 1889

Punched Card Calculator Patented

Herman Hollerith is issued a US patentĀ for his punched cardcalculator. 7 years later he starts a company called the… 88 more words

Tech History

Tech History

January 8, 1889

Punched Card Calculator Patented

Herman Hollerith is issued a US patentĀ for his punched cardcalculator. 7 years later he starts a company called the… 88 more words

Tech History