Any electric or mechanical device for controlling a circuit or system.
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.
The chief accounting officer which audits, and manages the financial affairs of a company or government; a comptroller.
One who controls something.
The person who supervises and handles communication with an agent in the field.
In software applications using the model-view-controller design pattern, the part or parts of the application that treat input and output, forming an interface between models and views.
A hardware device designed to allow the user to play video games.
A mechanism that controls or regulates the operation of a machine, especially a peripheral device in a computer.
The subject of a control verb. See Control (linguistics)
That part of a piece of electronic apparatus that provides appropriate voltages for the rest of the electronics from the connected AC source.
A source of power such as the mains or a generator.
Used other than figuratively or idiomatically: see power, supply.