GPS (Global Positioning System) - definition
GPS, originally NAVSTAR GPS is a positioning system owned by the United Sates government and operated by United State Air Force. There are 77 satellites in total of GPS. GPS is often used for its accuracy & precision. More or less all smart phone devices have GPS receiver in-built in the system in order to use the map services. User can use the service even without internet connection for many places to find a location or create a route from one point to another using only two (2) points: Latitude & longitudes in 2D plane. Also, the applications can be modified in so many ways, now we can even use GPS to navigate. Using different types of algorithm the applications of the positioning system can be extended.