Possibly a silly question, but GPS units that pull up restaurants & such... do they use a GSM/cellular connection of some sort or is it actually all in the software on the unit?
On most units, it's a pre-loaded and often updatable database on the unit. They're called POI (points-of-interest) databases and are generally one of the selling features of the GPS. "This GPS has a 6 million POI database" etc.
These databases coexist on the GPS with the actual map data itself.
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Possibly a silly question, but GPS units that pull up restaurants & such... do they use a GSM/cellular connection of some sort or is it actually all in the software on the unit?
:S
On most units, it's a pre-loaded and often updatable database on the unit. They're called POI (points-of-interest) databases and are generally one of the selling features of the GPS. "This GPS has a 6 million POI database" etc.
These databases coexist on the GPS with the actual map data itself.
This unit actually uses a SIM card... yes, a SIM... the same thing that cell phones use. Free for 1 year then after that... who knows the rate?!