| Word | Description |
|---|---|
| GPS | The Global Positioning System, or GPS, is a network of 31 satellites that orbit the Earth twice a day constantly transmitting their position. The GPS receiver in your navigation device triangulates its exact geographical position (within three yards) once every second using the signal from at least three of these satellites. Using the stored geographical coordinates of points of interest and streets it can plot a route from the device to a destination you determine. |