History of X-Window System
The X-Window System was originally developed to succeed the W windowing system on UNIX which ran very slowly. X grew to be an important component of network computing environments, as one of its strenghts is support for displaying applications running across a network. Initially under the care of the MIT X Consortium (until its version 11, hence the abbreviation X11), a number of disagreements regarding licensing led to the creation of XFree86 Project, although this was ultimately folded back into the main X codebase.
What is the X-Window System
In an earlier time, even the GUI of Microsoft Windows was a “shell” that ran on top of the base (command-line) OS… how many people remember typing “win” at the “C:\” prompt? As of Windows 95, a user was sent straight to the familiar Start-menu-and-tool-bar interface, and most Linux distributions started to do the same before too long. But the fact remains that Linux desktops are also a shell that runs over the kernel and base operating system tools, the foundation of which is X-Windows
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