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Welcome to the world of GPS or Global Positioning System. This system, also known NAVSTAR is constellation of orbiting satellites that gives navigating data to military and civilian community, it is very beneficiary and helpful for locating and determining one's precise location and whereabouts by providing a highly accurate time reference almost anywhere on the earth or in the earth's orbit. In this system, the user community can receive signals to calculate time, location and velocity.
Man requires a great many things to track in his day to day life. When we are at our home, we can track lots of activities and actions or happenings outside the house. For this purpose, GPS has an essential role to play and is very useful to the user or general community.
The GPS was previously built for real time military positioning. However, today also it serves the same purpose, but this time it has come to be used for the civilian community or the general public, besides it has become a vital global usage, essential for modern navigation on land, sea, and air throughout the world, and an important equipment for map-drawing, and surveying of land.
This system also gives an accurate precise time reference, needed for telecommunications and some scientific research, comprising the study of earthquakes. The GPS is appropriate and adequate equipment for multiple tasks for mapping and surveying.
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