An interface allows a user to interact with a computer. It controls and manages how to enter commands and how information is displayed. GUI and CLI are important types of the user interface. The difference between GUI and CLI is, GUI use icons & graphics while CLI use special keywords to enter commands.
- Command-Line Interface (CLI)
- Graphical User Interface (GUI)
- Menu-Driven Interface (MDI)
What is Command Line Interface?
In a command-line user interface (CLI), the user enters data and instructions by typing keywords or pressing special keys on a keyboard. A CLI is difficult to use as it requires exact spelling and punctuation. It generates an error if there is a slight mistake in the command.
What is the Graphical User Interface?
The graphical user interface is a visual environment that enables the user to communicate with a computer. It uses windows, icons, menus and other graphical objects to enter commands. A menu is a collection of commands. An icon is a small picture that represents a program, instruction, file, etc.
The mouse is the most commonly used input device in a graphical user interface. All windows based software uses a graphical user interface. Some important characteristics of Graphical User Interface are, it is easy to use, easy to learn and looks attractive.
- Graphical Interface: most users like the graphical environment. Visual presentation increases the understanding of users and they easily understand the environment.
- Easy to use: GUI uses buttons, menus, and icons, etc. these are easy to use because the user does not have to remember the commands. For example, the user can close a window by simply clicking on the cross button on the title bar of the window, etc.
- Easy to learn: the user finds it easy to learn GUI as its tools are self-explanatory
- Attractive: the color, size, and fonts of the graphical environment make it more colorful and attractive.
In a menu-driven interface, the user enters data and instructions by using menus. It is easier to use because the user has not to remember the syntax of commands.
Difference Between GUI And CLI In Tabular Form
The major difference between GUI and CLI is that the graphical user interface uses windows, icons, menus, and other graphical objects to enter commands While in a command-line user interface (CLI), the user enters data and instructions by typing keywords or pressing special keys on a keyboard.
GUI and CLI are differentiated on the flowing grounds:
|Command-Line Interface (CLI)|
Graphical User Interface (GUI)
|Ease||It is difficult to use.||It is easier to use.|
|Control||It provides more control of the file system and operating system.||It provides less control of the file system and operating system.|
|Multitasking||Some command-line environments provide multitasking but it is complicated to vision several things on one screen.||GUI enables a user to easily observe and operate various things at once.|
|Speed||Command-line users need to use keyboards to execute a command. A highly developed command-line interface enables a user to perform something faster than an advanced GUI user.||In GUI, the mouse is the most common device to enter commands. It is much slower than working in a command-line environment.|
|Scripting||A command-line interface enables a user to simply script a series of instructions to carry out a task or execute a program.||GUI does not provide the facility to script a sequence of commands.|
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