User:Hsy12321/sandbox

XQuartz (formerly and often still informally referred to as X11.app) is Apple Inc.'s version of the X server, a component of the X Window System(X11, or shortened to simply X, and sometimes informally X-Windows) for Mac OS X. The name “XQuartz” derives from Quartz, the OS X graphics framework, to which XQuartz connects these applications.

XQuartz is a required component that allows cross-platform applications to run on the OS X, many of which were not specifically designed for OS X. This includes numerous scientific and academic software projects.