A laptop GPS can be used in a vehicle, at home or anywhere you can take your laptop. They have a larger, easy-to-read screen and utilize a tool with which you are already familiar.
Most laptop GPS systems are USB based. It's easier than installing an internal gps.
you have to take laptop apart to install the receiver of the gps
Most laptops don't actually have a default gps system, instead relying on 3rd party software. To find information on them, you'll first need to determine which gps software is installed on it.
I don't know if I would use it in a car, but on a boat, or an airplane, it seems as though it would be useful. I think a laptop is a bit much for a car ride, but I hear they are pretty accurate and keep good GPS locks for the whole trip.
www.amazon.com has the widest selection of GPS navigation systems. They have all brands so you can find the cheapest ones at a great price. These include the basic systems that simply get you from point "A" to point "B" and the more advanced systems that include traffic rerouting, weather, and voice control.
There are multiple laptop gps softwares available.One of the leading softwares is the Garmin Mapsource Inland Lakes Gps Software.
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Alpine Electronics of America Systems make the GPS systems for Chrysler.
There are good and inexpensive GPS systems for trucks. These GPS systems for trucks include Garmin Nuvi 465t 4.3" GPS Truck Navigator and IntelliRoute TND Truck GPS.
You can find the difference between marine gps systems and garmin gps systems on the following site: http://www.secrets2business.com/the-difference-between-marine-gps-handhelds-and-their-bigger-brothers/. They have good descriptions.
Cobra is a company that offers a variety of automobile equipment ranging from gps devices to radars. Cobra gps systems refers to gps systems provided by the company Cobra.
Walmart does sell gps systems. They can be found in the electronics system with all the other gps systems. Or they can be found in the clearance aisle sometimes.