What is the full form of GUI in computer terminology?

In computer terminology, many technical components are referred to using acronyms that stand for a specific descriptive phrase. A Graphical User Interface is the mode of interacting with a computer system through visual elements such as icons, windows, menus, and a pointer, instead of typing individual text commands.

The acronym GUI is formed from the first letters of this exact phrase — Graphical, User, and Interface — describing a visual (Graphical) interaction layer (Interface) built for the person operating the system (User). This is the standard expansion used across computing glossaries and IT terminology references, including the U.S. National Institute of Standards and Technology (NIST) glossary.

• Graphical User Intermediate — "Intermediate" is not part of the standard acronym; in computing usage it commonly names a midpoint stage or value produced partway through a process.

• Graphical User Interconnection — "Interconnection" is a standard networking term for links or connections between separate systems or devices, not the name of a single system's interaction layer.

• Graphical Used Interface — "Used" is the past-tense form of the verb "use" and functions as a verb form, not as the noun "User" that names the person operating the system.

• Graphical User Interface — combines "Graphical", "User", and "Interface" exactly as they appear in the standard IT expansion of the acronym GUI.