So my friend gave me his iMac from his office, since their office upgraded all their machines. I've always used Windows, so I'm totally lost with this :/.. The iMac I have now I think was made in 2006, Specs are: iMac5,1 Intel Core 2 Duo 2.33 GHz 1 Processor 2 Cores 2GB Memory OS X 10.4.11 I wanted to upgrade to Mountain Lion, since this OS cannot even run Google Chrome... but to upgrade to ML I'll need Snow Leopard right? But then I saw that you need a 2007 model to run ML, so should I upgrade to SL only? I also wanted to upgrade the RAM, since 2GB really isn't that much.. but I read that my model would only be able to max out with 6GB of RAM. Can anyone help me? Should I upgrade RAM? To what should I upgrade to? and how can I go about upgrading my OS?