Were you lost while trying to locate a friend’s house or on your way to your client due to unfamiliar place and unclear instruction given to you? I believe things like this can always happen, but thank God to the bright ideas of inventors who invented GPS systems. I never knew about GPS systems until I read about David Cook’s fan/stalker who tried to locate his whereabouts by putting GPS (GLobal Positioning System) on his bus so he could track his hotel,  venue of his shows, etc.

GPS is a global navigation satellite system which is very useful tool tool for scientific uses (such as scientific study of earthquakes), land surveying, map-making, tracking and surveillance, and a lot more other uses.  GPS is made up of satellites orbiting the Earth, controla and monitoring stations on Earth and the GPS receivers owned by users. It provides accurate information about location and time to the user for an unlimited number of people every second, anywhere in the world. Everyone can use GPS since it is freely available to all.