GPS is the abbreviation of the full form of GLOBAL POSITIONING SYSTEM
The Global Positioning System (GPS) is a space-based navigation system which consists of 24 navigational satellites in 6 different orbits that provides location and time information in all weather conditions, anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites.
As its name implies
- It is Global.
- It gives real time Position.
And it is a System comprising of space segment with its 24 satellites, a control segment based on land and the receiver segment consisting cheap and simple to install and operate sub-systems.