Controller

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Controller Meaning and Definition from WordNet (r) 2.0

someone who maintains and audits business accounts [syn: accountant, comptroller]
a person who directs and restrains [syn: restrainer]
a mechanism that controls the operation of a machine; "the speed control on his turntable was not working properly"; "I turned the controls over to her" [syn: control]

Controller Meaning and Definition from Webster's Revised Unabridged Dictionary (1913)

(Elec.) Any electric device for controlling a circuit or system; specif.: (a) An electromagnet, excited by the main current, for throwing a regulator magnet into or out of circuit in an automatic device for constant current regulation. (b) A kind of multiple switch for gradually admitting the current to, or shutting it off from, an electric motor; as, a car controller for an electric railway car.
(Mach.) A lever controlling the speed of an engine; -- applied esp. to the lever governing a throttle valve, as of a steam or gasoline engine, esp. on an automobile.

Controller Meaning and Definition from Webster's Revised Unabridged Dictionary (1913)

One who, or that which, controls or restraines; one who has power or authority to regulate or control; one who governs. The great controller of our fate Deigned to be man, and lived in low estate. --Dryden.
An officer appointed to keep a counter register of accounts, or to examine, rectify, or verify accounts. [More commonly written controller.]
(Naut.) An iron block, usually bolted to a ship's deck, for controlling the running out of a chain cable. The links of the cable tend to drop into hollows in the block, and thus hold fast until disengaged.

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Controller: Controller may refer to: Occupations : Comptroller or financial controller, a senior accounting position. Air traffic controller , a person ...
Game controller: A game controller is a device used with games or entertainment systems used to control a playable character or object, or otherwise provide ...
Air traffic controller: Air traffic controllers are the people who expedite and maintain a safe and orderly flow of air traffic in the global air traffic control ...
Model–view–controller: Model–view–controller (MVC) is a software architecture currently considered an architectural pattern used in software engineering . ...
MIDI controller: MIDI controller is used in two senses. In one sense, a controller is hardware or software which generates and transmits MIDI data to MIDI- ...
Disk controller: The disk controller (or "hard disk controller") is the circuit which allows the CPU to communicate with a hard disk , floppy disk or ...
Controller (control theory): In control theory , a controller is a device which monitors and affects the operational conditions of a given dynamical system . ...