x11
X11 is the 11th release of the X Window System; it is currently at
revision 6.6 (i.e. X11R6). It's the name for the protocol used in
current X implementations. The standard was ratified in 1986 - the same
year this presenter was born (!).
- X11 is implemented by absolutely everyone, including
XFree86, Xi, Solaris, and every commercial UNIX in the
past few years.
- X11 is flexible thanks to its extensions
architecture.
- X11 is window-based (even the background you see is
a window - the "root window"), and event-based (clicks,
mouse-in, mouse-out, etc).
- X11 is fully network-transparent: applications can
operate on either network or local connections, not
needing to have to know which.