I am getting a new system and would like to sell what I have. The problem is, I'm completely computer illiterate and don't know all the specs of my current computer. For example, I know that I have an Athlon processor, but nothing else about it. Can I pull this information up somehow? Also, how do I delete everything from my hard drive before I get rid of it? Any help for a newbie who can only surf the internet would be appreciated!!