What's the difference between Xubuntu and Ubuntu?

[Steve Lamb]

Michael Haney wrote:
> You forgot to add that XCFE is a lightweight desktop environment for
> slower machines with less RAM.  XFCE looks and acts like Gnome because
> its built from Gnome's source code.

    No, it's not.

> Believe it or not, but back in the day Gnome looked and functioned
> more like KDE than it does today.  Gnome today is more like the menu
> bar in Mac OS X minus the dock.

    No, it didn't.