GPS

What you need to know

What does GPS mean?

GPS stands for Global Postioning System. It is a space-based satellite navigation system that provides location and time information in all weather, anywhere on or near the Earth.

The Advantages and Disadvantages of GPS

Disadvantages:

GPS can be useful but it can also be scary. For example, Google released a new social network called Latitude. Latitude is a website created in 2009 so you can track where your friends are at any point using a GPS from there phones on the map. You can also share where you are. This is dangerous because it you don't have any privacy settings, Anyone can see where you are at any time and you can see where everyone else is. This can lead to various situations that you should always try to avoid.

Advantages

A GPS device is extremely handy. When you are hiking, you can deviate from a path without worrying about how you will find your way back. When you are driving, GPS-based navigation systems can provide you with turn-by-turn directions, a helpful feature in a strange town. Also, Some GPS systems allow you to search the local area for nearby services, such as hotels, restaurants and gas stations. This is extremely helpful in some situations.Some GPS' can even estimate a time that you will arrive at your destination!

Below is a picture of Google Latitude in action:
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