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{{Short description|Collection and manipulation of items of data to produce meaningful information}}
▲{{Short description|Collection and manipulation of items of data to produce meaningful information}}
{{other uses}}
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=== Manual data processing ===
Although widespread use of the term ''data processing'' dates only from the 1950s,
The [[1890 United States
=== Automatic data processing ===
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
=== Computerized 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
=== Other developments ===
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A very simple example of a data processing system is the process of maintaining a check register. Transactions— checks and deposits— are recorded as they occur and the transactions are summarized to determine a current balance. Monthly the data recorded in the register is reconciled with a hopefully identical list of transactions processed by the bank.
A more sophisticated record keeping system might
The important thing about this example is that it is a ''system'', in which, all transactions are recorded consistently, and the same method of bank reconciliation is used each time.
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