Data processing: Difference between revisions

Revision as of 15:47, 15 October 2022

Revision as of 09:04, 22 November 2022

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The term ''[[Electronic data processing|automatic data processing]]'' was applied to operations performed by means of [[unit record equipment]], such as [[Herman Hollerith]]'s application of [[punched card]] equipment for the [[1890 United States Census]]. "Using Hollerith's punchcard equipment, the Census Office was able to complete tabulating most of the 1890 census data in 2 to 3 years, compared with 7 to 8 years for the 1880 census. It is estimated that using Hollerith's system saved some $5 million in processing costs"<ref name=Bohme91 /> in 1890 dollars even though there were twice as many questions as in 1880.

=== Electronic data processing ===

Computerized data processing, or [[Electronic data processing]] represents a later development, with a computer used instead of several independent pieces of equipment. The Census Bureau first made limited use of [[electronic computers]] for the [[1950 United States Census]], using a [[UNIVAC I]] system,<ref name=Truesdell65 /> delivered in 1952.

=== Other developments ===