翻訳と辞書 |
power supply unit : FOLDOC | 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}. (2007-09-20)
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