Want to know more about the PC you are sitting at, eg what type of ram (in the lowest possible detail) is installed (important if you want to upgrade), well this free tool can do this; http://www.piriform.com/speccy


Also you should check out their other utilities, they are equally great..

be sure also to check out;


where System Spec also is among the more useful hardware inventory programs, but there’s also a bunch of other useful utilities there.