HP originally had a proprietary windowing system named Windows/9000 which looked like this: http://www.typewritten.org/Media/Images/hpwindows-starbase-ux7-color

HP originally had a proprietary windowing system named Windows/9000 which looked like this: http://www.typewritten.org/Media/Images/hpwindows-starbase-ux7-color-ch.png http://www.typewritten.org/Media/Images/hpwindows-starbase-u... Their X10/X11 environments came later.