Ever wonder how the Global Positioning System (GPS) works? This extraordinarily complex system is actually based on some simple concepts. Find out what they are in this Shockwave game.

A keyboard key used to move the pointer (cursor) around on the screen. They include the four Arrow keys, PageUp, PageDown, Home and End keys. See modifier key. THIS DEFINITION IS FOR PERSONAL USE ...

Google Maps' navigation features can come in handy during a trip to an unfamiliar area. For example, audio cues can be used to help you prepare for a turn by telling you the appropriate street ...