Each the words GPS and Sat Nav have gradually crept into on a regular basis use. They are are sometimes used interchangeably. Is there a difference between them and if so, what is the distinction?
Firstly, sure there is a difference.
GPS is short for Global Positioning System. It's the collective name for a gaggle of satellites which can be in orbit across the Earth. They were placed there by the US Authorities decades ago and made publicly available during the administration of President Reagan.
Using a GPS receiver (a small system that can send and receive signals from any satellite within range) you may get your exact location. This location is supplied as a set of co-ordinates.
Utilizing this info and the co-ordinates of your vacation spot, many GPS receivers can 'information' you to the destination using a compass-like arrow. In theory, when you've got the GPS co-ordinates of your private home, utilizing a GPS receiver you will discover your way residence from even the remotest place in the world.
The GPS receiver has change into a common merchandise that's fitted to many gadgets, resembling your mobile phone or the safety system in your car. Many smartphones, such because the iPhone, PPP
have a GPS built-in. If allowed, purposes can use this info to direct you to, say, the closest Italian restaurant. Some digital cameras also have a GPS. They'll use it file exactly the place the photo was taken.
A sat nav (brief for satellite navigation) is really some very particular software that makes use of the GPS signal. It takes the co-ordinates provided by the GPS and combines that with a complete map. Then, given a vacation spot, the sat nav software will calculate a route for you to your destination. As the GPS signal is consistently up to date, the sat nav can provide you step-by-step directions on the place you might be and when you could make a turn.