What Does X Window System Mean? The X Window System (X11) is an open source, cross platform, client-server computer software system that provides a GUI in a distributed network environment.

X.Org provides the X Window System, a graphical interface for Unix-like operating systems. Learn about its development, releases, documentation, security, and how to get and donate to X.Org.

In this tutorial, we’ll discuss the X Window System (X11). First, we’ll look at the history of why X11 was created and how the graphics under Linux work. Then, we’ll cover how X11 is designed.

In computing, the X Window System (commonly: X11, or X) is a network-transparent windowing system for bitmap displays. This article details the protocols and technical structure of X11. Client–server model and network transparency. In this example, the X server takes input from a keyboard and mouse and displays to a screen.

Learn what the X window system is, how it works, and its components. The X window system provides graphical user interface facilities for Linux and other Unix-based operating systems.

Learn the basic X Window System concepts and terminology, such as client/server, input devices, output rendering, windows, widgets, and more. This guide is intended for developers who want to create applications for X Window System.