How is my computer? Its a HP inspiron desktop

4 gig of ram
Quad processor (what exactly does this do?)
Light Scribe
22 inch HP w2207h screen, 1680x1050 resolution
My graphics card was integrated, but i got a free http://www.newegg.com/Product/Produc...82E16814130328 off my friend, all in all how good is this comp?