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Definition: controller


(1) A device used to play video games. See video game controller.

(2) An electronic circuit board or system. In a computer, controllers contain the circuitry to run a peripheral device and are either contained in the chipset on the motherboard or on a plug-in expansion card. See control program and PC chipset.




Not As Much These Days
Although gamers may have a high-end graphics card that plugs into the computer's PCI Express bus, most peripheral control is in the chipset on the motherboard. See PC chipset.