Page 18 - Viva ICSE Computer Studies 8 : E-book

Graphical User Interface (GUI)
Graphical user interface is a graphics-based interface where devices like keyboard and mouse
are used to interact with the system. It allows the use of icons to interact with devices rather
than using only text. It does not require the user to memorise the commands.

Windows is the most popular GUI operating system.

Advantages of GUI over CUI

Graphical User Interface (GUI) Character User Interface (CUI)

• GUI interface is more user-friendly and • CUI is not as attractive and user-friendly as GUI.
attractive. • It uses commands to interact with the system.
• It uses icons to interact with the system. • The user requires to learn the commands to
• The user does not require to learn the interact with the system.
complicated commands. • It does not off er the user to view multiple
• It off ers the user to view multiple programs at programs at once on one screen.
the same time. • It supports only the use of keyboard.
• It supports the use of both keyboard and • It does not off er immediate feedback of the
mouse to navigate through a system. action that is being performed. Rather one or
• It off ers the user to get the immediate feedback more additional commands are executed to
of the action that is being performed. confi rm the action that is performed.

Disadvantages of GUI over CUI

Graphical User Interface (GUI) Character User Interface (CUI)

• More RAM is required. • Less RAM is required.
• Development of presentable interface is a • CUI development is command-based, so it is
time-consuming process. less time consuming.
• It is more expensive as the user needs to pay • It is less expensive.
the license fee. • It is faster because commands perform the
• It is slower as compared to CUI. task quickly.

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