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XFree86 (commonly referred to as XFree) is an implementation of the X Window System, which provides the fundamental software and libraries that enable graphical user interfaces (GUIs) to be displayed on Unix-like operating systems such as Linux and BSD.
Key Points:
- X Window System: It manages graphical displays and allows for the development of window-based applications.
- XFree86: Specifically designed for systems running on Intel x86 architecture but was later expanded to other platforms.
- It was once one of the most widely used X server implementations for Linux systems but was largely replaced by X.Org after 2004 due to licensing changes and community disagreements.
If you’re dealing with older Linux distributions, you may still encounter XFree86, but newer systems mostly use X.Org for graphical handling.