I use a emachines netbook, 10.1 screen
, 1 gig ram. 160 gb hd, running XP and use Opencpn
and cm93 charts
+ others. Connected to gps
dongle and NASA AIS engine
3. Covered about 6000 miles last year.
Whole lot including dedicated AIS
with 5 metre cable cost approx £350 ($500 US). battery
life is about 3-4 hours, so have both a 12v power lead and a small (70w) inverter
- power draw is less than 20w.
More than happy with it and portable from boat to boat.