I Get So Confused

I get very confused when it comes to computer hardware. At least I think it is computer hardware that I am talking about. I even get confused between hardware and software. Bad, huh? My desktop is ill and I took it to my local geek. He started trying to tell me something about the ddr2 and how I needed to do something. All I know is that my eyes started glazing over and I gave him my usual "just fix it" line. I don't know why he even tries to explain these things to me anymore.