Power supply unit

(PSU) An electronic module that converts high voltage (110 or 240 VAC) alternating current mains electricity into smoothed direct current at the various differnt voltages required by the motherboard; internal peripheral devices, cheifly storage devices: hard disks, CD or DVD, floppy disks and external connections such as USB. A PSU needs a high enough power output rating to supply all the devices connected to it and should output as little as possible electrical noise, both on the output wires and as electromagnetic radiation.
See also uninterruptable power supply.


Read Also:

  • Power-takeoff

    noun 1. an accessory unit or apparatus attached to an engine-powered machine and powered by the engine. Abbreviation: PTO.

  • Power tie

    noun a conservative man’s tie intended to convey influence or authority

  • Power-tool

    noun 1. a tool powered by an electric motor or a gasoline engine. noun 1. a tool powered by electricity noun An extremely hardworking student: power tools cramming all night

  • Power-train

    noun 1. a train of gears and shafting transmitting power from an engine, motor, etc., to a mechanism being driven.

Disclaimer: Power supply unit definition / meaning should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. All content on this website is for informational purposes only.