11-07-16, 07:50 PM
[URL="https://en.wikipedia.org/wiki/Herman_Hollerith"]Good question Don
Herman Hollerith[/URL] invented the recording of data on a medium that could then be read by a machine. Prior uses of machine readable media, such as those above (other than Korsakov), had been for control, not data. "After some initial trials with paper tape, he settled on punched cards...",[SUP][9][/SUP] developing punched card data processing technology for the 1890 US census.
Hollerith founded The Tabulating Machine Company (1896) which was one of four companies that were consolidated to form Computing-Tabulating-Recording Company (CTR), later renamed the International Business Machines Corporation (IBM). IBM manufactured and marketed a variety of unit record machines for creating, sorting, and tabulating punched cards, even after expanding into electronic computers in the late 1950s. IBM developed punched card technology into a powerful tool for business data-processing and produced an extensive line of general purpose unit record machines. By 1950, the IBM card and IBM unit record machines had become ubiquitous in industry and government. "Do not fold, spindle or mutilate," a generalized version of the warning that appeared on some punched cards (generally on those distributed as paper documents to be later returned for further machine processing, checks for example), became a motto for the post-World War II era.
Herman Hollerith[/URL] invented the recording of data on a medium that could then be read by a machine. Prior uses of machine readable media, such as those above (other than Korsakov), had been for control, not data. "After some initial trials with paper tape, he settled on punched cards...",[SUP][9][/SUP] developing punched card data processing technology for the 1890 US census.
Hollerith founded The Tabulating Machine Company (1896) which was one of four companies that were consolidated to form Computing-Tabulating-Recording Company (CTR), later renamed the International Business Machines Corporation (IBM). IBM manufactured and marketed a variety of unit record machines for creating, sorting, and tabulating punched cards, even after expanding into electronic computers in the late 1950s. IBM developed punched card technology into a powerful tool for business data-processing and produced an extensive line of general purpose unit record machines. By 1950, the IBM card and IBM unit record machines had become ubiquitous in industry and government. "Do not fold, spindle or mutilate," a generalized version of the warning that appeared on some punched cards (generally on those distributed as paper documents to be later returned for further machine processing, checks for example), became a motto for the post-World War II era.