i was considering buying a sky caddie gps, but i was wondering if you can use a regular gps to map a golf course on your own. i’ve never used a gps so i really don’t know anything about them.

GPS systems have become increasingly popular, portable and affordable. Sales for this small navigation system are off the charts, and they are the hottest ticket at every electronics store and big box retailer around.
So what is GPS exactly, how does it work, and why is it so popular? What other uses are there for technology? [...]