| Established way back in 1973 by the DOD or | | | | that work in conjunction with your vehicle. |
| Department of Defense, a GPS system was put | | | | Nowadays, maps just are not enough, and why |
| in place with the launching of 24 different satellites | | | | should they be when there is technology to be |
| that could pinpoint the exact location of different | | | | take advantage of. GPS navigation units for a |
| GPS receivers. Originally being used by the | | | | vehicle work basically by allowing a driver to input |
| Department of Defense, GPS is now widely and | | | | the address of a destination and then the GPS will |
| popularly used by regular civilians all around the | | | | tell you what roads to take to get there. Some |
| world. As long as the line of sight between four | | | | of these GPS systems are so advanced that |
| different GPS satellites is clear, then the exact | | | | they not only allow you to input the destination, |
| location of an individual with a GPS receiver can | | | | but they are also preloaded with points of interest |
| be given. Since we live in such a modern, | | | | that can come in handy when you are looking for |
| technologically advanced world, GPS is integrated | | | | a destination but do not know the address. These |
| into a variety of different products. | | | | GPS systems can also be used as personal GPS |
| Personal and portable, handheld GPS receivers can | | | | systems on trips and some can even be attached |
| now be bought by any consumer, that will read | | | | to a bike. |
| that devices exact location at any given time as | | | | GPS navigation is now widely used in a variety of |
| long as there is a clear signal. Handheld GPS | | | | different applications with one of the most popular |
| navigation systems are absolutely essential when | | | | devices having a GPS incorporated in are cell |
| going out and about of different trips. Not only | | | | phones. It seems that nowadays, cell phones do |
| can they help you find out where you are located | | | | everything we need in life and just so happen to |
| at a particular point in time, but they can also | | | | have a phone built in; unlike when the first cell |
| come in handy in times of survival in case you | | | | phones came out and their sole purpose was to |
| get lost. For example, if you were to go on a | | | | make phone calls. Now cell phones have GPS |
| mountain climbing expedition and end up getting | | | | navigation built right in so you can always know |
| lost, your GPS unit can give you your exact | | | | where you are as long as you have your cell |
| coordinates so that you can tell rescue crews | | | | phone. This also brings parents a piece of mind |
| where you are located. | | | | because they know their kid's cell phones can be |
| Even more advanced than that, are GPS systems | | | | traced via GPS should something happen to them. |