Version 11 of X Window System is referred as X11.
  X11 is a portable network window system.
  There is no X11 command.
  X is the network-based windowing system.
  Window application can be run on remote computers
  with the results displayed on a local UNIX workstation.
  Only TCP/IP and DECnet networks are supported by the X.
  The protocol used to communicate across the network is X protocol.
  Each display is controlled by X server.
  Client ( or window application ) running on either the local
  or the remote systems.
  Root window is the screen background.

  The screen layout and the style of user interaction is
  controlled by the separated program, called the window manager.
  twm window manger
             - keyboard input is automatically assigned to
               whatever window the pointer currently happens
               to be in.
  olwm       - OPEN LOOK window manager from AT&T and SUN.
  mwm        - Motif window manager from Open Software foundation
  .mwmrc     - motif window menu file configuration
  CDE        - Common  Desktop Environment
  .de        - CDE configuration directory
  xdm        - X display manager
  /usr/openwin/lib/xdm
             - XDM configuration directory

  xterm
  Cntr + "RightButton"    ===>  Select Fonts
  Cntr + "MiddleButton"   ===>  Term Options
                  For example:  Enable/Disable Scrollbar

  LeftButtonDown          ===>  Copy
  LeftButtonDoubleClick   ===>  Copy
  MiddleButtonClick       ===>  Paste

  xterm  -sb             -  open  new window with scrollbar
  xterm  -bg  green      -  open  new window with background "green"
  xterm  -fn  9x15bold   -  open  new window with font "9x15bold"
  exit,  ^D              -  exit from window "xterm"

  Step 1.
   setenv DISPLAY dbs:0.0           or
   setenv DISPLAY 140.1.120.5:0.0
     - where a window to be opened,
       to be executed on the local workstation

  Step 2.
   xhost +
     - window access is granted to everyone,
       to be executed on the remote workstation

  Step 3.
   Now a window application ( client ) may be executed on the
   local workstation and the results will be displayed
   on the remote workstation ( X server )

  Examples of window applications:
   filemgr      -   GUI-based file managmant application for X
   xman         -   manual page display program for X
   xcalc        -   scientific calculator for X
   xclock       -   analog/digital  clock for X
   xload        -   display CPU loading
   imagetool    -   Image viewer for olwm,
                    it may be used in mwm too
   xv           -   Image viewer application for X


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Maintained by Rafael Stekolshchik         Last updated: July 4, 1998
klivlend1@yahoo.com

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