What is PFC (power factor correction) within computer power supplies?

getting a power supply that have this

What is PFC (power factor correction) within computer power supplies?

It is a good opinion to have equipment operate at a high-ranking power factor. This saves surrounded by the amount of current that flows for the same power and can gather in force losses. However, the amount of difference is small in a computer power supply and, contrary to information surrounded by a link above, power companies do not charge domestic customers for doomed to failure power factors
It's essentially a power in your favour technology. Most modern power supplies now own it, and it's required in Europe. See here:

http://searchsmb.techtarget.com/sdefinit...

And here:

http://www.endpcnoise.com/cgi-bin/e/faqp...