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Tabulating Machine Company

One of four companies that became IBM


Founded by Herman Hollerith in 1896. Prior to this, Hollerith had been at the US Census Bureau and the US Patent Office and had applied for several patents for punched card equipment in 1884. He had a major success with the 1900 US Census.

  • HQ: Washinton DC, USA
  • Known for: Punch Cards
  • Type: Company