|Hi Bill, you should advise your location city/state/country as this may have a bearing on answers.|
It is not so much the hardware, but the software required:-
a) application (and maybe installation) programs and drivers for one or more of the o/s you mention
b) the fax program itself for the same o/s's.
Generally this type of installation is used only for sending, but not receiving as this would mean having to leave the computer constantly on.
Here in the UK, there are internet services (some free) proviidng fax services.
Why fax anyway?
As a matter of interest, where are you located? I am in Hammersmith, West London.
Good Luck - Keep us posted.