What is the main purpose of GPS?

Related questions

1. Do phones have GPS?
2. What are the advantages of GPS tracking?
3. What signal does GPS use?
4. How does GPS on phone work?
5. How does the GPS work?
6. What is GPS and its use?
7. How is GPS useful?
8. Can phone GPS work without service?
9. What is L band on DAB?
10. How does a GPS work for dummies?

Tags

1. #position
2. #originally
3. #defense
4. #technology
5. #developed
6. #military
7. #system
8. #receiver
9. #global
10. #multiple
11. #earth
12. #purposes
13. #department
14. #positioning
15. #navigation
16. #signals
17. #satellite