August 2024
Beginner
216 pages
5h 24m
English
Content preview from Exploring Computer Hardware
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Power Supplies
The power supply (PSU) converts high voltage electricity from the mains power supply (usually 110-240v AC), into regulated low-voltage DC power for the internal components of a computer.
There have been many different types of power supply in the past, however the computer industry eventually settled on using the ATX power supply.
ATX stands for Advanced Technology eXtended and is a motherboard and power supply configuration specification developed by Intel in 1995.
For modern systems, most power supplies produce three primary voltages:
- 12 volts
- 5 volts
- 3.3 volts
Some power supplies also produce negative voltages of -5v, -12v ...
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