First off, I don't know anything about computers. I want to upgrade my computer to play new games that have come out. The only problem is, I haven't bought a computer since 2005, its a windows XP home edition. So I figure that its cheaper to just upgrade a computer system instead of buying a new one. However, while doing research of my own, I read that some older systems were impossible to upgrade. I was wondering if mine is to old to upgrade. I'm pretty sure I only need to upgrade my RAM and graphics card. I have an external hard drive connected to my computer, and together with my internal hard drive I have 90GB of space, so I don't think I have to upgrade my hard drive. I also don't think I need to upgrade my sound card. So, getting back to my original question, does anybody know if its even possible for me to upgrade my computer?