add-in
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add-in
[′ad‚in] (computer science)
An electronic component that can be placed on a printed circuit board already installed in a computer to enhance the computer's capability.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
add-in
(1) A hardware module or printed circuit board that adds functionality to an existing electronic device. It is designed to plug into a socket on the unit.(2) Software that adds functionality to an existing application. Also called "add-on." See plug-in.
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