Anyone know about GPS working/tracking location

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Hi  !...anyone know about GPS working (or) GPS tracking system.. if any of your friends or Ur seniors knew about it /did project in it,.....

i just wanna get clarified few things regarding it ..!Help me ...
Lingavignesh, proud to be a member of Vidyarthiplus.com (V+) - Online Students Community since Nov 2012.

    Anyone know about GPS working/tracking location