For example i am currently using Windows 7 Utimate. Which is apparently the better version of Basic and Professional. I have used both Ultimate and Basic and i can not tell what the difference is. I think Ultimate has better networking or something (?).
:rtfm:
Ultimate supports AD domains (among other things) and higher level enterprise networking features.
Other than that, the diff between Ultimate and the
home versions is essentially just shit the average user will never notice, lol.