Feel free to ask as many questions as possible! I don't think anyone here has a problem! On the contrary.
Now, to your question. You could check that out from a shell with a command, but I'm afraid I don't remember the exact one. You see, I'm a bit spoilt with KDE and GNOME. If you're using KDE go to KDE start menu (the RedHat logo in RedHat)-> Control Center -> Information -> Block Devices and that's about it. Also try to get used to the idea that your physical drives are not represented by drive letters in Linux which is the case in windows. Linux incorporates those drives into the directory tree. 'Nuff said. Again, feel free to ask!