A Graphical User Interface (GUI) is a type of user interface that allows users to interact with a computer system through graphical elements such as icons, menus, and buttons.

A graphical user interface (GUI, pronounced “gooey”) is a computer environment that simplifies the user’s interaction with the computer by representing programs, commands, files, and other ...

As a programmer myself, I know that most graphic user interfaces were well known. A programmer who just takes a glance of a GUI photo would know how to implement it.