Welcome to the Clickable Motherboard
Move your mouse over the motherboard to find clickable hotspots. The arrow will change indicating that there is more information available. When you click on the area, a description will appear on this side of the screen. Hit the "back" button to exit this area.
If your using Netscape prior to version 3.0, use the right mouse button to go back in the frames. Hitting the "back" button will bring you back to the last html page.