Last of my crazy stupid questions ( for now)

Ok I’m going to install NIS 2014 in 3 pcs
A vista basic laptop
A desktop windows 7
And a future desktop windows ( right now my desktop vista is not working so don’t know if I’ll get that fixed or just buy a new one)

Does it really matter which machine gets NIS 2014 installed first? Like does the first one become the " primary " machine?
As I said my main machine ( vista desktop) is not working at the moment
So going to install NIS first on the laptop then install on my mother in laws desktop at another location