Gps What You Didn't Know

摘要

What is GPS? GPS is short for Global Positioning System. It is a technology for anyone who wants to know where they are, where they have been or to find out how to get somewhere. To start using it, all you need is a GPS receiver. There are no charges apart from the initial cost of hardware. If you decide to go for navigation with detailed maps, then there is usually a one-time charge for that as well. The Basic Premise Imagine the earth to be covered with horizontal and vertical lines; the horizontal ones called latitudes (or parallels, since they are all parallel to each other) and the vertical ones called longitudes (or meridians; they converge at the north and south poles). These lines are further divided into minutes and seconds. Knowing the latitude and longitude of a place, you can get there using GPS.