Q: ok im getting a new graphics card im getting used to computers and i found out i need power supply what does it do where can i buy it and how much are they
A: power supplies are what converts ac power from a wall outlet to dc power that a computer's peripherols can use a good 1000 watt power supply can cost up to 300$ dollars, but a cheap 500 watt can go as low as 30$ www.newegg.com has good computer stuff, its' where i buy all my stuff from