Norton 360 can I use it on 3 seperate computers?

I am thinking of buying norton 360 and sharing it with 2 friends it says on nortons official site I can use it on 3 seperate computers does it mean 3 different computers in a household or 3 different computers in a town or city

Norton 360 can I use it on 3 seperate computers?bmw

i dont think you can but you can get the 60 day free try from yahoo