“Quartz is the heart and soul of Mac OS X’s graphics layer, which directly supports the defining features of the Aqua desktop experience. Quartz is largely based upon Adobe’s PDF specification, but it has roots tracing all the way back to PostScript. The two defining components of Quartz are Quartz Compositor and Quartz 2D. Tiger introduced Quartz 2D Extreme and Quartz Composer, an alternative way to explore the power of Quartz through a powerful visual programming environment.”
What Is Quartz?
2005-10-12 macOS 11 Comments
and I thought Quartz was a job scheduling system.