‘’GRAPHIC USER INTERFACE’’

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‘’--GRAPHIC USER INTERFACE—‘’

Introduction:

        The graphical user interface is a form of user interface that allows users to interact with electronic devices over graphical icons and visual indicators such as secondary notation, instead of text-based user interfaces, typed command labels or text navigation.

Further Details:

        The actions in a GUI are usually performed through direct manipulation of the graphical elements which are the better sources needed. Beyond computers, GUIs are used in countless handheld mobile devices such as MP3 players, portable media players, gaming devices, smartphones and smaller household, office and industrial controls. 

The term GUI tends not to be applied to other lower-display resolution types of interfaces, such as audiovisual games (where head-up display (HUD) is preferred), or not including flat screens, like volumetric displays because the term is limited to the scope of two-dimensional display screens able to describe generic information, in the tradition of the computer science research at the Xerox Palo Alto Research Center.

Components:

        A GUI uses a combination of technologies and devices to provide a platform that users can interact with, for the tasks of gathering and producing information. A series of elements conforming a visual language have evolved to represent information stored in computers. This makes it easier for people with few computer skills to work with and use computer software. 

The most communal combination of such elements in GUIs is the windows, icons, menus, pointer (WIMP) paradigm, especially in personal computers. The WIMP style of interaction uses a virtual input device to represent the position of a pointing device, most often a mouse, and presents information organized in windows and represented with icons.

Post-WIMP interface:

        Smaller mobile devices such as personal digital assistants (PDAs) and smartphones stereotypically use the WIMP elements with different unifying metaphors, due to constraints in space and available input devices.

Three-dimensional user interfaces:

        For typical computer displays, three-dimensional is a misnomer—their displays are two-dimensional. Semantically, however, most graphical user interfaces use three dimensions. With height and width, they offer a third dimension of layering or stacking screen elements over one another. This may be represented visually on screen through an illusionary transparent effect, which offers the advantage that information in background windows may still be read, if not interacted with.

GUI wrappers:

        Graphical user interface (GUI) wrappers find a way around the command-line interface versions (CLI) of (typically) Linux and Unix-like software applications and their text-based user interfaces or typed command labels. While command-line or text-based application allow users to run a program non-interactively, GUI wrappers atop them avoid the steep learning curve of the command-line, which requires commands to be typed on the keyboard.

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