The file is quite big because I've somehow managed to put EVERYTHING in it with a few pictures here and there. Please tell me if I've missed anything.
Resources: CGP revision guide, www.technologystudent.com (it's a great website for technology) and the internet!
Update: It seems like most people found this useful! Well, I'm glad I could help! I spent ages trying to get the boxes in the right place, but when I downloaded the powerpoint from here, everything's out of place, and a few fonts are not the ones I used! :( I don't know how all that happened...but it's supposed to look better than this.. Anyway, good luck for your exams! I basically moved the information I could find onto this powerpoint xD I've finished GCSE now and got an A* overall! I just couldn't believe it!