Unless you’ve been living under a rock, you certainly have heard of the Global Positioning System or GPS. There is a GPS for almost everyone: for hikers, drivers, bikers etc. You also find GPS modules on some advanced mobile telephones like the Nokia 6110 Navigator.
 
What is it?
 
In very simple terms, the Global Positioning System (GPS) [...]

What It Is and How It Works - For the uninitiated, GPS stands for Global Positioning System. It’s a method of finding a receiver anywhere on earth or in orbit, and it’s probably one of the most important inventions of the 20th century. GPS can be used in so many varied ways that [...]

I’m planning to get a garmin gps but when I looked online, there were so many series available. Baffled by the variety, I don’t know which one is right for me. I need something preferably 4.3 inches, a speaking gps, real time traffic alerts and reroutes etc. I don’t really care about bluetooth or picture [...]