UX is user experience.
A gui (graphical user interface), and the ui (user interface)
leads the recipient through a forest of pages, data, programs,
video games and much more.
So it is important to give the user an experience.
A memorable experience.
A intuitive experience.
Imagine, PC’s without windows, mac os, linux, and so on.
This would be difficult and dry.
Right done graphical user interfaces show what is easy
navigating and let the user fly through all your software.