Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

What type of windowing system does Mac OS X use? Is it a modified X window system? Or something totally different?

share|improve this question
up vote 5 down vote accepted

OS X uses Quartz Compositor

along with the Aqua theme.

share|improve this answer
Really? I thought that that was the name they gave the 'look and feel' of it. Is this not the case? – Wuffers Oct 10 '10 at 0:55
Oh, ok. Thanks for the clarification. – Wuffers Oct 10 '10 at 0:55
@Mr. Man: Aqua is the theme (or look and feel) while Quartz Composer is the windowing system. I initially just had Aqua, which was incorrect. – Josh K Oct 10 '10 at 2:57
Yep. I noticed that. Thank you! – Wuffers Oct 10 '10 at 3:07
'Compositor' :) – Casual Coder Oct 10 '10 at 4:21

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.