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What is GPS?

  • GPS or Global Positioning System is a network of orbiting satellites that send precise details of their position in space back to earth.
  • The signals are obtained by GPS receivers, such as navigation devices and are used to calculate the exact position, speed and time at the vehicleslocation.
  • GPS is well-known for its military uses and was first developed by the US to aid in its global intelligence efforts at the height of the Cold War.
  • The very first GPS system was developed in the 1960s to allow ships in the US Navy to navigate the oceans more accurately.
  • The first system had five satellites and allowed ships to check their location once every hour.
  • Today, portable Navigation devices can give drivers their precise location to within a few meters, which is accurate enough to navigate roadways.
  • Military applications have much higher precision so that a location can be pinpointed within a few centimeters.

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