GPS navigation devices always know the way, even when the driver doesn't. GPS has become a standard feature on phones, new cars and dedicated GPS devices.

Guided by signals from orbiting Global Positioning Satellites (GPS) and built-in mapping software, navigation devices are able to determine a user's exact location, direction and speed of travel. They can calculate the best route to a particular destination, give turn-by-turn directions and even locate nearby businesses and other points of interest (POIs).

Not just for drivers, navigation devices can also plot and track a user's position on various types of maps, like street, waterway, trail and contour maps. This makes them useful for driving on a road trip or figuring out the best bus route to take to meet friends.

• Explain how GPS navigation systems work
• Describe the types of GPS systems available
• List the three major consumer uses of GPS technology
• Advise Customers on the GPS navigation products and features that best support their planned usage
• Recommend the accessories and/or subscriptions customers will need to get the most out of their selected GPS product