What is the difference between X-server, Waylandand Mir? I know X-sever is a display server but what is the role of Wayland & Mir?

closed as too broad by muru, Kusalananda, Wouter Verhelst, slm Apr 12 '18 at 18:23

Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

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    You asked two question one very hard to explain and most likely already answered and one really easy which one is your priority in your two questions ? Its usually better to ask two differents if you have two – Kiwy Apr 11 '18 at 13:26
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    @Kiwy - I have edited – N Randhawa Apr 11 '18 at 13:55