How does the Num Lock key work?
The Num Lock key on the Mac does not really do Num Lock. It is the Clear key. For example, when you are in the Calculator application, pressing Clear/NumLock erases the number displayed. The reason the key is marked Num Lock is for users running PC emulation software on the Mac. The clear key on the Mac has the same key code as the num lock key on the PC (i.e., they are the same key). Apple’s keyboard works the same way, but they do not include the LED.
