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A graphical user interface, or GUI [a], is a form of user interface that allows users to interact with electronic devices through graphical icons and visual indicators such as secondary notation. In many applications, GUIs are used instead of text-based UIs , which are based on typed command labels or text navigation.
In general, operating system shells use either a command-line interface (CLI) or graphical user interface (GUI), depending on a computer's role and particular operation. It is named a shell because it is the outermost layer around the operating system.
Often, there is an additional component implemented in software, like e.g. a graphical user interface. There is a difference between a user interface and an operator interface or a human–machine interface (HMI). The term "user interface" is often used in the context of (personal) computer systems and electronic devices.
Interface elements known as graphical control elements, controls or widgets are software components that a computer user interacts with through direct manipulation to read or edit information about an application. Each widget facilitates a specific user-computer interaction.
UI—User Interface; UL—Upload; ULA—Uncommitted Logic Array; ULSI—Ultra Large Scale Integration; UMA—Upper Memory Area; UMB—Upper Memory Block; UML—Unified Modeling Language; UML—User-Mode Linux; UMPC—Ultra-Mobile Personal Computer; UMTS—Universal Mobile Telecommunications System; UNC—Universal Naming Convention
User interface (UI) design or user interface engineering is the design of user interfaces for machines and software, such as computers, home appliances, mobile devices, and other electronic devices, with the focus on maximizing usability and the user experience. In computer or software design, user interface (UI) design primarily focuses on ...
Example of a ribbon, an element of graphical user interfaces. In computer interface design, a ribbon is a graphical control element in the form of a set of toolbars placed on several tabs. The typical structure of a ribbon includes large, tabbed toolbars, filled with graphical buttons and other graphical control elements, grouped by ...
Though the acronym has fallen into disuse, it has often been likened to the term graphical user interface (GUI). Any interface that uses graphics can be called a GUI, and WIMP systems derive from such systems. However, while all WIMP systems use graphics as a key element (the icon and pointer elements), and therefore are GUIs, the reverse is ...