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  1. Herman Hollerith (February 29, 1860 – November 17, 1929) was an American statistician, inventor, and businessman who developed an electromechanical tabulating machine for punched cards to assist in summarizing information and, later, in accounting.

  2. Mar 27, 2019 · Hollerith invented and used a punched card device to help analyze the 1890 U.S. census data. His great breakthrough was his use of electricity to read, count and sort punched cards whose holes represented data gathered by the census-takers.

  3. Herman Hollerith, American inventor of a tabulating machine that was an important precursor of the electronic computer. Hollerith’s machine recorded statistics by electrically reading and sorting punched cards that had been numerically encoded by perforation position.

  4. Dec 9, 2011 · Hollerith’s work over the next decade eventually led to the groundbreaking invention of the punch card tabulating machine, installed in a federal government office for the very first time on...

  5. www.ibm.com › history › punched-cardThe punched card | IBM

    In the late 1880s, inventor Herman Hollerith, who was inspired by train conductors using holes punched in different positions on a railway ticket to record traveler details, invented the recording of data on a machine-readable punched card.

  6. Invented by Herman Hollerith, the machine was developed to help process data for the 1890 U.S. Census. Later models were widely used for business applications such as accounting and inventory control. It spawned a class of machines, known as unit record equipment, and the data processing industry.

  7. During a short stint compiling manufacturing statistics for the US Census Office, Herman Hollerith grew frustrated with the organization’s manual process of counting questionnaires. The tedious, error-prone labor was creating an operational nightmare for an overtaxed agency.