adapter

(1) The circuitry required to support a particular device. For example, video adapters enable the computer to support graphics monitors, and network adapters enable a computer to attach to a network. Adapters can be built into the main circuitry of a computer or they can be separate add-ons that come in the form of expansion boards.

(2) Short for expansion board.

(3) Short for Analog Telephone Adapter.


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