A GPS tracking system uses the Global Navigation Satellite System (GNSS) network. This network incorporates a range of satellites that use microwave signals that are transmitted to GPS devices to give information on location, vehicle speed, time and direction. So, a GPS tracking system can potentially give both real-time and historic navigation data on any kind of journey.
It provided special satellite signal and it does not require any telecom tower.
GPS does not require internet. It is based on a constellation of satellites, orbiting around 17.7 million meters (11000 mi) above the earth, and requires the input from three of the satellites to triangulate your position.
Ritesh, you need to go back to school and learn all your basics and take general classes in modern technology. You can't go about learning everything by posting constantly on edaboard. You seem like an person that grew up in an Amish community and have never been exposed to any form of technology.
As you are seem to be incapable of remembering (or rereading) older posts, and combining the information into a cohesive whole....
Mapping data (via internet): street names, cities, restraints, etc
GPS: current position (coordinate) on the earth
Add the together on your phone: Android's Google maps or iPhone's mapping app.
I don't get it, why bother being in a technology field when you are clueless about technology? Is there any facet of modern technology that you understand?