How it works:
A computer functions almost like a brain. There is a monitor, which displays the picture (eyes); a CPU, or central processing unit, that functions as the "brain"; the hard drives, which act like the long-term memory of a human; the RAM resembles a human's short-term memory; the power source (PS or PSU for short) acts as the "food" for the entire computer by sending AC (alternating) currents to the hardware; the wires act like the "nerves" of the computer, and are transistors, which switch the currents from AC to DC (direct) currents. The wires also lower the voltage, so the hardware doesn't short circuit.
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The wires that come out of the PSU are unique. They are color coded to avoid confusion. This is how they work:
Black: The "grounding wire". One must be paired with every other wire. Red: Supplies +5v White: Supplies -5v. Yellow: Supplies +12v. Blue: Supplies -12v. Orange: Supplies 3.3v. Purple: Supplies +5v when on standby. Green: The control wire. Checks the DC voltage. And that is how the wires are color coded. To find out more about a PSU, see the website http://www.brighthub.com/computing/hardware/articles/58559.aspx## |
Wrtten by:Dez Zimmerman
Copyright: December 14, 2012
Copyright: December 14, 2012