GUI (Graphical User Interface) is a software solution that offers the user intuitive control of the system, simplified compared to the interface of a standard console. GUI visualizes commands and controls as graphical objects such as buttons, links, windows, tables, etc.
The advantage of GUI is organization of commands and settings into groups, creation of intuitive hierarchical structures.
The main disadvantage of GUI is the use of system resources and primarily RAM: all graphical objects must be loaded into RAM.