Thanks for the replies. I don't disagree that they are very different OS's and should be kept distinct. I just think that MacOS with out
a qualifier means Mac OS X. If you buy a Mac and turn it on now you
see that Mac OS which is Mac OS X.
So Mac OS should mean Mac OS X and the one that needs
qualifying is `old' Mac OS , Classic Mac OS, Mac OS x for
x less than 9.2.2 etc
Michael