>_>
Probably gonna get shot for this but since I'm extremely dumb when it comes to computers and don't have the energy in me to look it up:
What's a "core"? (Quad-core, dual-core)
Well, in a nutshell, processors are usually much better if they have more cores. There are many exceptions to the rule, but yeah. Nowadays, if you have a computer that you use for more than just basic internet surfing, you want a dualcore. For gaming, quadcores are becoming the standard.