Humans have always sought to use tools to help them survive. Through out millennia, Mankind has used tools to adapt and overcome the sometimes harsh environment he has found himself in. As time has dragged on, Man has fashioned ever more complex and high tech tools. These tools have enabled him to build the hunt for game, build the Pyramids and cross oceans. Today, that same thirst for invention has given us GPS, or Global Positioning system

Millions of people around the world have adopted the use of GPS to the point that it is fast becoming a house hold accessory. GPS allows them to help plan their trips, keep tabs on their children and keep track of their vehicles. It helps though to understand the technology that makes this all possible.

The way GPS works is a relatively simple concept when broken down completely. Strategically placed satellites that are orbiting the Earth, relay a signal searching for any GPS receiver on the surface of the Earth. The signal is received by the GPS unit and then decoded. The unit and the satellite then communicate with each other and the satellite then transmits the coordinates to the GPS unit. This transfer of data allows anyone looking at the GPS screen to see where they are currently located.

During the 1970′s and 1980′s the satellites for GPS were deployed for the United States military to use in navigation for their units on land and at sea. It wasn’t until the ’90s that GPS was allowed to be used for commercial use. Since that time, GPS has rapidly wormed its way into the marketplace and into our lives. It is so widespread and commonly used that a good unit can be found inexpensively.

Since the price is inexpensive, this means that GPS is affordable for pretty much every socio-economic class of people. Given the availability and low cost, GPS units are pretty much found in every vehicle on the road. This is to be expected because these units help you keep from getting lost and save you peace of mind.

If you purchase a car and it has a GPS option, you are well served to purchase it as it will not only help you, it will increase the vehicles resale. If your vehicle did not come equipped with a GPS as an option, you will want to find one that fits your budget and individual preferences.

GPS has made the time honored journey of a piece of technology that benefits people in peacetime that was originally developed for warfare.