GPS is developed by the United States Department of Defense and officially NAVSTAR named. In the late 1950s or in the U.S. Navy in the early 1960s, satellite measurements and navigation system based on established, open to the public in 1969.
As you already know, our location will be exposed to GPS. If you don't turn off function of location of GPS device like smart-phone and navigation. GPS technology is advancing rapidly and all of us are becoming more and more dependent on these little devices.
There are many advantages by using little devices.
First, Do you like to go a on trip? or are you busy for business? devices, smart-phone and navigation...etc, are useful for your camping and business. Also, you can use and find these devices easily is the most advantage for you.
Second, If you worn a GPS device on your wrist you can enhance your outdoor activities such as walking, running or cycling. These devices track your speed, distance, heart rate and calories burnt during your exercise and they can also with your applications of smart-phone.
Third, even if you get lost, you can get know location where you are and your destination. Also, you can know where is your friends coming for meeting: By sending picture of destination.
In conclusion, GPS System is so useful, but sometimes it is used for the purpose of the bad. So, we should control the function of applications, goverment should make the strong regulations and companies protect personal information from being used by criminals.