I use MaxSea Time Zero (not Navigator) on a
laptop and a
desktop. The
desktop is an i7 processor and also has 8 Gb RAM, Win 7 Ultimate 64-bit, no problems. The laptop is a
generator older, I forget the processor and it only has 4 Gb RAM, Win 7 Pro 64-bit, but also no problems. As advertised, it updates instantaneously, always.
Don't know what a T61 is, but prior to this desktop
installation I was running TZ on a 32-bit Windows XP machine with 3 Gb RAM.. and it ran fine there, too.
I haven't used the
AIS alarm function on the
computers. However, I also have a
Furuno NAVNet 3D
chartplotter on board -- which uses MaxSea as the drive
engine -- and the AIS alarm sounds there until canceled.
I have not used
weather routing; maybe that's a function of the Navigator version, above the basic Time Zero version. I don't have a weather source, which would be required.
MaxSea charts from MapMedia come in various formats: raster, (U.S.) NOAA vector,
C-Map vector, and I think
Navionics vector. I have only used the first two, and they're very good in our area. The system processes at the same speed (right now!) with all the charts we've loaded.
-Chris