The Virtual Lathe is a great way to learn all about how a Center Lathe really works, without risking losing a finger.
An excellent training tool with full functionality, even drilling, and educational videos as well to give a thorough grounding in Lathe operation and safety.
It works like a real lathe, but moving the mouse over also lets you find out what the parts are called and what they do, even with some short video clips.
Remember, safety first - the Virtual Lathe won't work unless you have your safety glasses on, and have removed the chuck key...