< DATA >
~ typically the results of measurements and can be the basis of graphs, images,
or observations of a set of variables.
~Data can exist in a variety of forms -- as numbers or text on pieces of paper, as bits
and bytes stored in electronic memory, or as facts stored in a person's mind.
~ In database management systems, data files are the files that store the database information, whereas other files, such as index files and data dictionaries, store administrative information, known as metadata.
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