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What is meant by data management? Describe its use.

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To collect information for a special purpose and to store it in a computer in a file form which may help at times when needed, is called data managing.
Uses of Data Management .
The educational institutions, libraries, hospitals and industries store the concerned information by data management. Additions and deletions are made in the data according to the requirement, which helps in the improvement of the management of the institutions
In big departmental stores and super markets optical scanners are used to read, with the help of laser beam, the barcodes of a product which indicate the number at which this product is recorded in the register In this way. the detail about its price is obtained It also helps, placing the order of goods being solid in a large quantity and to decide about less selling goods.
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