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[[File:Example_of_a_GUI.png|Example of a GUI|thumb]] [[File:Linux_kernel_INPUT_OUPUT_evdev_gem_USB_framebuffer.svg|Linux kernel INPUT OUPUT evdev gem USB framebuffer|thumb|left]] [[File:GNOME_Shell.png|GNOME Shell|thumb|left]] [[File:KDE_Plasma_5.16.png|KDE Plasma 5.16|thumb]] [[File:Ubuntu_Mate_18.04.1_with_MATE_1.20.1.png|Ubuntu Mate 18.04.1 with MATE 1.20.1|thumb]] '''Graphical User Interface''' ('''GUI''') is a type of [[user interface]] that allows users to interact with [[electronic devices]] through graphical icons and visual indicators, as opposed to text-based interfaces, typed command labels, or text navigation. GUIs were introduced in reaction to the steep learning curve of command-line interfaces (CLIs), which require commands to be typed on a [[computer keyboard]].

==History==
The concept of a GUI is not new and has its roots in the 1970s at [[Xerox PARC]], where researchers developed the Xerox Alto, a personal computer that featured the first GUI. However, it was not until the 1980s, with the introduction of the Apple Lisa and subsequently the [[Apple Macintosh]], that GUIs became widely used. The development of GUIs has significantly influenced user interaction with computers, making them more accessible to the general public by simplifying the user experience.

==Components==
A GUI typically includes several key components:
* '''Windows''': Rectangular areas of the screen that display the contents of a folder or application.
* '''Icons''': Small pictures that represent programs, files, and commands.
* '''Menus''': Lists of options from which the user can choose what they need.
* '''Buttons''': Graphical elements that can be clicked to perform specific actions.
* '''Toolbars''': Sets of icons or buttons that give quick access to certain functions or commands.

==Advantages and Disadvantages==
===Advantages===
* '''Ease of Use''': GUIs are generally more intuitive and easier to learn, especially for beginners.
* '''Efficiency''': Tasks can be completed more quickly due to the ease of finding and using applications and files.
* '''Accessibility''': Features like icons and visual cues make GUIs accessible to users who might struggle with text-based interfaces.

===Disadvantages===
* '''Resource Intensive''': GUIs require more system resources, including memory and processing power.
* '''Over-Simplification''': Sometimes, GUIs can oversimplify complex commands, limiting advanced users.
* '''Consistency''': The lack of standardization across different GUIs can confuse users when switching between systems.

==Types of GUIs==
There are several types of GUIs, depending on the devices and operating systems:
* '''Desktop GUIs''': Found on personal computers and workstations running operating systems like [[Microsoft Windows]], [[macOS]], and [[Linux]].
* '''Web-based GUIs''': Used in web browsers to interact with websites and web applications.
* '''Mobile GUIs''': Designed for smartphones and tablets, optimized for touch inputs.

==Development==
GUI development involves a range of tools and languages. Popular tools include [[Qt (software)|Qt]], [[GTK]], and [[WPF]] for desktop applications, and HTML5, CSS, and JavaScript for web applications. The choice of tool often depends on the platform and the specific requirements of the project.

==Future Trends==
The future of GUIs is likely to involve more natural user interfaces (NUIs), incorporating voice, gesture, and even brainwave inputs to create more intuitive and immersive experiences. Augmented reality (AR) and virtual reality (VR) are also seen as the next frontier in GUI development, offering entirely new ways for users to interact with digital environments.

[[Category:User interface]]
[[Category:Computing]]
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Graphical user interface - Revision history

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