Tabulating Machine

Herman Hollarith was an American engineer and was working in American sensus department. He invented final Punched card Tabulating Machine in 1887. Experts estimated that calculation for the record of sensus of US in 1890 may take 13 years to complete but by the help of Tabulating Machine it was finished ahead of the estimated time and was low cost.

It was an electrical Tabulating Machine which had a punched card reader and could sort datas and it had a keyboard as well where a person can manually enter the data.

In 1896-1911 Herman Hollarith formed a company named Tabulating Machine Company and these machines were used to count the population of different of Europe.

By Adam Schuster - Flickr: Proto IBM, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=13310425

By Unknown author - Library of Congress https://www.loc.gov/resource/mcc.023/?sp=8, Public Domain, https://commons.wikimedia.org/w/index.php?curid=30538485

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