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Also known as a power supply unit (PSU). A box inside a computer case that supplies power to the motherboard and other installed devices. power supply
Used to measure the output of each connector coming from the power supply. power supply tester:
EMI in the radio frequency range. radio frequency interference (RFI):
An electrical device that converts AC to DC. A PC power supply contains a rectifier. rectifier:
An electronic device that resists or opposes the flow of electricity. A resistor can be used to reduce the amount of electricity being supplied to an electronic component. resistor
A card that plugs into a motherboard and allows for expansion cards to be mounted parallel to the motherboard. Expansion cards are plugged into slots on the riser card. riser card
Another term for a soft switch. soft power
A feature on an ATX or BTX system that allows an OS to power down the system and allows for activity such as a keystroke or network activity to power up the system. Also called soft power. soft switch
Temporary surges in voltage, which can damage electrical components. Also called swells. spikes
An electrical charge at rest. Also known as electrostatic discharge (ESD). static electricity
A device or power strip designed to protect electronic equipment from power surges and spikes. surge protector or surge suppressor
The largest type of personal computer case. Tower cases stand vertically and can be as high as two feet tall. They have more drive bays and are a good choice for computer users who anticipate making significant upgrades. tower case
A device that changes the ratio of current to voltage. A computer power supply is basically a transformer and a rectifier. transformer
An electronic device that can regulate electricity and act as a logical gate or switch for an electrical signal. transistor
A device designed to provide a backup power supply during a power failure. Basically, a UPS is a battery backup system with an ultra-fast sensing device. uninterruptible power supply (UPS)
A measure of potential difference in an electrical circuit. A computer ATX power supply usually provides five separate voltages: +12 V, -12 V, +5 V, -5 V, and +3.3 V. volt (V)
A power supply might have a voltage selector switch on the back. Often, voltage selector switch
The unit used to measure power. A typical computer may use a power supply that provides 200 W. watt (W)
Created by: mikemoore11
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