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A word or phrase used to identify a document in a computer-based information storage and retrieval system.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
An integer, string or other small data value which refers to one of several objects allocated to a program by the operating system, usually the kernel. A common example is a Unix file descriptor which is a small integer that identifies an I/O channel. Another example is a reference to an area of memory (e.g. shared memory).
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)
descriptor(1) A word or phrase that identifies a document in an indexed information retrieval system.
(2) A category name used to identify data.
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