System stores metadata, such as filename and file type (given by its extension), (file) creation and modification date, access rights, file length, etc. With RAW files, TIFFs and JPEGs, we actually find several types of metadata: Metadata may be embedded in the actual data file or may be stored separately -either in a discreet file or in a database. Using digital photography, metadata describes an actual photo taken. Metadata provides descriptions with data.
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