In computer user interfaces, what is the full form of the abbreviation GUI?

Introduction / Context:
Modern computers, smartphones and tablets are almost always operated through graphical screens that show windows, icons, menus and buttons. This style of interaction is so common that many users forget there was a time when computers were controlled only through text commands. The standard abbreviation used to describe this visual, mouse and touch based environment is GUI. This question tests whether you know the correct expansion of GUI and can separate it from several similar sounding but incorrect phrases.

Given Data / Assumptions:

• The abbreviation in the question is GUI.
• The context is computer user interfaces.
• All options start with the words Graphical and either User or Universal.
• Only one expansion is widely accepted in computer science and industry.

Concept / Approach:
GUI stands for Graphical User Interface. It describes an interface that allows users to interact with electronic devices through graphical elements like icons, windows and buttons rather than only through text commands. The key words are graphical and user. The term universal is not part of the standard expansion. Similarly, integration is not used in this abbreviation. GUI is taught in basic computer courses, appears in software documentation and is a well established term. Once you recall that the letter U refers to user and the letter I refers to interface, the correct choice becomes obvious.

Step-by-Step Solution:
Step 1: Break down GUI into G, U and I and recall common computer terms that match.Step 2: Recognize that G most naturally stands for Graphical in this context.Step 3: Remember that U stands for User because the interface is meant for the person using the device.Step 4: Recall that I stands for Interface, which is the layer through which interaction happens.Step 5: Compare these words with the options and identify the one that exactly matches Graphical User Interface.

Verification / Alternative check:
You can verify by thinking of related terms. For example, in many operating systems there is a contrast between GUI applications and command line applications. Documentation almost always expands GUI as Graphical User Interface. Technology articles, textbooks and online tutorials use the same wording without variation. There is no standard term Graphical Universal Interface or Graphical User Integration in basic computer literature. This consistent usage across sources confirms that Graphical User Interface is the correct expansion.

Why Other Options Are Wrong:

• Option A, Graphical Universal Interface, is non standard and does not match the letter U as User.
• Option C, Graphical User Integration, misuses I because integration is not the word represented by I in GUI.
• Option D, Graphical Universal Integration, is completely non standard and uses neither User nor Interface.
• Option E, General User Interaction, changes both words and does not even start with Graphical, so it does not match the abbreviation.

Common Pitfalls:
Some learners may guess expansions based on what sounds impressive, such as Universal or Integration, instead of relying on what they have actually seen in textbooks and software menus. Another pitfall is rushing through the question and picking the first option that looks close without carefully checking each word. To avoid errors, always match each letter in the abbreviation with the standard words that you have encountered in reliable sources.

Final Answer:
The correct answer is Graphical User Interface.