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Tech
Funda
You can open the Windows
Command Prompt by
i + WHAT IS A USER INTERFACE? pressing the Windows
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 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. and click on the OK button.
Based on the working environment, user interfaces can be divided into two categories: Character
User Interface (CUI) and Graphical User Interface (GUI). Let us discuss these in detail.
Character User Interface (CUI)
In CUI operating system, the user sends commands and instructions to the computer in character
form i.e., by typing commands at the command prompt. The display on the screen does not
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
a particular task. DOS and Windows command prompt are the two most commonly known
character user interfaces.
Quick Byte
You can open the Windows Command Prompt by pressing the Windows Key + R. The
Run dialog box appears. Type cmd and click on the OK button.
Advantages of CUI
There are certain advantages of CUI:
• It is easy to understand.
• 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.
Disadvantages of CUI
It has a few disadvantages also, which are as follows:
• People find it difficult to remember all the commands.
• It is not user-friendly.
Graphical User Interface (GUI)
In GUI operating system, the interface is graphical i.e., the user interacts with figures and graphs
on the screen. It is basically menu or button based. A user can use options of the menu to
execute different functions.
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iPlus (Ver. 2.0)-VIII

