Searching for system information on a Mac running Mac OS X 10.6 Snow Leopard can be confusing to the uninitiated. For example, if you're trying to figure out what RAM chips are installed in what slot on your device, you need to pop open About This Mac, click the More Info button, and then scroll down through the list of hardware, network, and software items until you find the proper info. Even then, if you're looking for details on how to upgrade your system RAM means you'll need to do a web search for instructions.
Mac OS X 10.7 Lio