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Tech
Funda
You can open the Windows
Command Prompt by
GUI operating systems are interactive and user
i + WHAT IS A USER INTERFACE? pressing the Windows
friendly. It replaces the commands that we used in
A User Interface (UI) refers to a part of an operating system that allows a user to interact with Key + R. The Run dialog
the CUI interface with icons, buttons, and menus. A
the computer. It provides a set of commands, menus, and icons that help in interacting with the box appears. Type cmd
computer. An effective interface can make an operating system attractive and user-friendly. user does not need to remember all the commands. and click on the OK button.
Based on the working environment, user interfaces can be divided into two categories: Character GUI allows us to give commands to the computer by
User Interface (CUI) and Graphical User Interface (GUI). Let us discuss these in detail. simply clicking with the mouse. Examples of GUI are
Character User Interface (CUI) Windows XP, Windows Vista, Windows 7, Windows 8,
In CUI operating system, the user sends commands and instructions to the computer in character Windows 8.1, Windows 10, Windows 11, Mac, LINUX
form i.e., by typing commands at the command prompt. The display on the screen does not (Redhat, Ubuntu, BOSS, etc).
contain any graphic or picture, rather it contains only lines and characters. CUI is also called a
command line interface (CLI). A user can write commands on the command prompt to perform Advantages of GUI
a particular task. DOS and Windows command prompt are the two most commonly known There are many advantages of GUI over CUI:
character user interfaces. • It is easy to use, especially for beginners.
• It is more appealing and attractive as compared to CUI.
• It provides the feature to use multiple applications at the same time.
• It is not necessary to remember the commands to operate this interface.
• It provides remote access to a computer.
• It enables easy exchange of information between software through cut and paste or 'drag and
drop' methods.
• It usually provides users with immediate, visual feedback about the effect of each action.
Disadvantages of GUI
Quick Byte There are many disadvantages of GUI:
You can open the Windows Command Prompt by pressing the Windows Key + R. The • It takes large amount of hard disk space than CUI.
Run dialog box appears. Type cmd and click on the OK button. • It uses more processing power.
• It needs more memory (RAM) to run.
Advantages of CUI
There are certain advantages of CUI: i + A COMPARISON BETWEEN CUI AND GUI
• It is easy to understand.
CUI (Character User Interface) GUI (Graphical User Interface)
• It accepts input and displays output in the form of text.
• It allows users to write commands by typing one or two-line text known as command lines. 1. It provides lots of commands to perform It provides icons, buttons, windows, and
different types of operations. menus to give commands.
Disadvantages of CUI
2. A user needs to remember all the A user does not need to remember
It has a few disadvantages also, which are as follows:
commands. commands. He can just click on the icons,
• People find it difficult to remember all the commands. menus etc.
• It is not user-friendly.
3. It uses the keyboard to give commands. It uses a mouse, a stylus, or fingers to give
Graphical User Interface (GUI) commands.
In GUI operating system, the interface is graphical i.e., the user interacts with figures and graphs 4. Examples are DOS, Windows Command Examples are Windows, Mac, etc.
on the screen. It is basically menu or button based. A user can use options of the menu to Prompt, etc.
execute different functions.
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