information storage and retrieval
A branch of computer science that is concerned with the function of datasets.
Database systems retrieval involves the searching on large computer files for specific data which may be organized into a variety of fields. Once a perfect match is found the information is made available. This type of system allows specific sets of data to be retrieved independently or with other sets.
Document-retrieval systems store and retrieve entire documents, which can be searched for and retrieved using the document name or key words within the document.
Reference-retrieval systems do not store documents themselves but references to documents. A search will make available the location of the relevant documents. This system is most commonly used in libraries when printed matter, such as books and periodicals, can be quickly located. See also database.
Related category COMPUTERS, ARTIFICIAL INTELLIGENCE, AND CYBERNETICS
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