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'''Electronic data processing''' ('''EDP''') can refer to the use of automated methods to process commercial data. Typically, this uses relatively simple, repetitive activities to process large volumes of similar information. For example: stock updates applied to an inventory, banking transactions applied to account and customer master files, booking and ticketing transactions to an airline's reservation system, billing for utility services.
The first commercial business computer was developed in the [[United Kingdom]] in [[1951]], by the [[Joe Lyons]] catering organization. This was known as the '[[LEO computer|Lyons Electronic Office]]' - or LEO for short. It was developed further and used widely during the 1960s and early 1970s. (Joe Lyons formed a separate company to develop the LEO computers and this subsequently merged to form English Electric Leo Marconi and then International Computers Ltd.)
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