I have a few computers and the CPU on all of them are a little different. I'm not sure what getting a better CPU would even do. I always thought RAM made the computer go faster. What does CPU do different than RAM? Heres some of my CPU specs.. Intel(R) Celeron(R) CPU 560 @ 2.13 GHz 2.13 GHz, 1GB RAM <--------------Whats the 560? Why didnt the others show it? Intel Pentium 4 CPU 2.40 GHz 2.42 GHz, 1GB RAM Intel Celeron D CPU 3.20 GHz <-- Has like 800MB RAM Id really like to know the difference between different CPUs and how it helps me. I don't understand alot of the numbers I see. I think what it means by Gigahertz how fast it is, but idk what its doing at that speed, i just know the speed. I need an explanation and I cant seem to find one I can understand anywhere. Also, Whats the difference in duel core, triple core, and quad core? And the difference in the Pentium, Celeron, and whatever else there is out there? And are there other brands than Intel? And is the 3.20GHz significantly faster than the 2.13GHz? I don't see the difference, is there a way I can tell? I notice when I take the CPU out of my computers and look at them, some have prongs, some dont, some are difference sizes. What are these different chips called? Whats the difference in 32bit and 64bit? Correct me if I'm wrong please. But does 32bit hold about 2-4GB RAM and 64bit hold as much as billions of GBs of RAM? Read that on www.HowStuffWorks.com Whats the difference in L1, L2, L3 cache? I read that it can increase performance, hows this? http://computer.howstuffworks.com/cache1.htm <----- Found a good answer here! Analogies really help me. I'm really interested in this and I'm so curious about how computers work. It seems like the more I learn the more questions I have. I'm really doing my research and learning alot, but theres just some questions I cant find on the internet. As I do find the answers or get answers here. I'll be posting them for other people who are wondering the same thing I am.