Model Question and Answers for APSC | What is GPS? Mention its two functions. (APSC 2014)
Ans : The Global Positioning System (GPS) is a navigation system using satellites, a receiver and algorithms to synchronise location, velocity and time data for air, sea and land travel. GPS is everywhere. You can find GPS systems in your car, your smartphone and your watch. GPS helps you get where you are going, from point A to point B.
The Indian Regional Navigation Satellite System, with an operational name of NavIC, is an autonomous regional satellite navigation system that provides accurate real-time positioning and timing services. It covers India and a region extending 1,500 km around it, with plans for further extension.
There are five main functions of GPS:
1. Location — Determining a position.
2. Navigation — Getting from one location to another.
3. Tracking — Monitoring objects or personal movement.
4. Mapping — Creating maps of the world.
5. Timing — Making it possible to take precise time measurements.