http://www.WhyGPS.com/GPSInfo/TomTomGPS/index.php http://www.WhyGPS.com/rss/TomTomGPSArticles.xml TomTom GPS from Why GPS GPS [global positioning system] is a worldwide radio-navigation system formed from the constellation of 24 satellites and their ground stations. It is a system mainly used to locate the user's position at a time. Although GPS was originally intended for military applications, but now it is mainly us Thu, 04 Jun 2009 23:00:36 -0600 http://www.WhyGPS.com/GPSInfo/67.php http://www.WhyGPS.com/GPSInfo/67.php Everything here is © Why GPS, Copyright 2009, All Rights Reserved Worldwide.