A. What is a PSU?What does it do?-Savannah

A PSU stands for Power Supply Unit. What it does is transfer the power from the outlet to the other parts of the computer that need that power. Other names for a PSU are a power supply or a power converter.
external image power-supply-connections-labeled.jpg

B. What are important things to consider when determining a what wattage to get?-Blaine

The most important things to consider when determining what wattage to get for your computer is how many hard drives you have and how good you want your graphics to be. You should also keep the number of tabs open to a minimal because having a number of sites open at once uses more watts. If you are using too much electricity your computer will run slow and become unstable. The site antec offers a tool that can calculate the recommended number of watts for your computer. If are low on power your computer might start freezing and the graphics will get worse. (1.)(2.)


C. What are the different plugs for?What's the difference?- Kayla

The PSU(power supply unit) has many different plugs that have different functions. The different plugs connect to other boards, which connects to the motherboard. Information is then sent to the CPU (central processing unit) to control the computer. The different plugs have different controls and send the basic controls to the motherboard, which operates the computer. The plugs transfer power to other parts of the computer and the computer itself.(3.) (4.) (5.)



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Sources:

(1.) http://www.antec.outervision.com/
(2.) http://superuser.com/questions/230476/which-part-of-the-computer-needs-all-the-power-from-the-psu (3.)http://en.kioskea.net/faq/3312-identify-the-connectors-of-the-power-supply
(4.) http://computer.howstuffworks.com/power-supply2.htm
(5.) http://en.wikipedia.org/wiki/Power_supply_unit_(computer)