COMPUTER HARDWARE
MOTHERBOARDS AND EXPANSION CARDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A device that provides power to a computer.
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A device that cools the internal parts of a computer. Most computers have more than one.
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The case that holds all of the internal computer parts.
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The card that plugs into the motherboard and runs the monitor(s).
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Detailed explanation-1: -A power supply unit (PSU) converts mains AC to low-voltage regulated DC power for the internal components of a computer. Modern personal computers universally use switched-mode power supplies. Some power supplies have a manual switch for selecting input voltage, while others automatically adapt to the mains voltage.
Detailed explanation-2: -A power supply is a device that converts one voltage to another more convenient voltage while delivering power. Power supplies are designed from the output back to the input.
Detailed explanation-3: -One of the key components of any computer system is the power supply unit, also known as the PSU. This component provides power to the rest of the computer, including any installed peripherals such as graphics cards and additional hard drives.
Detailed explanation-4: -Your computer’s power supply both converts the alternating current (AC) from an American wall socket to the DC necessary for the internal power needs of the computer, and regulates the voltage. Internally, personal computers utilize +/-12, 5, 3.3, or 2.8 volts DC.