>downloading maps and trying to make a way to view them locally Before smartphones this was common. Standalone gps units had maps locally stored. Some of the o

>downloading maps and trying to make a way to view them locally Before smartphones this was common. Standalone gps units had maps locally stored. Some of the ones mounted in car dashboards stored them on an internal DVD. I used to have to drive a lot for work long before they were commonly built in to cars and I had an aftermarket one mounted on my dashboard, a little 2” monochrome display. Storage was tight, and I’d have to hook it up to my computer to swap out map sets if I was traveling further than usual.