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DG-Ch4-Stack3
| Question | Answer |
|---|---|
| power supply | 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 |
| power supply tester | Used to measure the output of each connector coming from the power supply.power supply tester |
| radio frequency interference (RFI) | EMI in the radio frequency range.radio frequency interference (RFI) |
| rectifier | An electrical device that converts AC to DC. A PC power supply contains a rectifierrectifier |
| resistor | 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 |
| riser card | 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 |
| soft power | Another term for a soft switch soft power |
| soft switch | 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 |
| spikes | Temporary surges in voltage, which can damage electrical components. Also called swells spikes |
| static electricity | An electrical charge at rest. Also known as electrostatic discharge (ESD) static electricity |
| surge protector or surge suppressor | A device or power strip designed to protect electronic equipment from power surges and spikes surge protector or surge suppressor |
| tower case | 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 |
| transformer: | A device that changes the ratio of current to voltage. A computer power supply is basically a transformer and a rectifier transformer |
| transistor | An electronic device that can regulate electricity and act as a logical gate or switch for an electrical signal transistor |
| uninterruptible power supply (UPS) | 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) |
| volt (V) | 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 Volt |
| voltage selector switch | A power supply might have a voltage selector switch on the back. Often, the voltage selector switch on the power supply can be set to 230 V or 115 V. When in the United States, set the switch to 115 V. Be sure to never change the voltage selector switch |
| watt | The unit used to measure power. A typical computer may use a power supply that provides 200 Watt |
Created by:
Dgrobelny
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