Because it does not supports GUI and we can only work on CLI in DOS..
No, MS-DOS only has a command line interface.
Windows has a graphical interface while DOS is a command line interface.
DOS is a command line interface, Windows (starting at Win95) is a graphical user interface.
MS-DOS user interface,
Command prompt/line is used to execute entered commands. Command prompt is mostly commonly used to execute batch files, perform advanced administrative functions, and troubleshoot and solve certain kinds of windows issues.
A CLI (command line interface) is a user interface to a computer's operating system or an application in which the user responds to a visual prompt by typing in a command on a specified line...
DOS is a CLI (Command Line Interface) Operating System..
This generally describes the screen you are looking at in a program, and the icons you may click to accomplish (tasks). They are "graphical," rather than, say, verbal, you are the user, and the page is the interface.
Because executing many functions are much easier in DOS then Windows.
To get to the command line on your computer click on the Start button, click on Run, then type "cmd" in the run box. You will go to a black box called DOS. You will also see the command line prompt C:>, this is where you type in DOS commands. You can use DOS commands to do just about anything you can do in Windows except it's more work, you can copy, move, del files, etc. To get out of DOS just type Exit at the command prompt. You need to find yourself a book on DOS commands to know how to work it.
Dos command line to start Microsoft anti virus?
The letters DOS stand for Disk Operating System. So DOS is an operating system. It is more commonly referred to as a CLI (Command Line Interface) because you have to type commands one at a time. Any version of Windows (from Windows 95 onward), or the Macintosh OS, are operating systems that have a GUI (Graphic User Interface). (Older versions of Windows, such as Windows for Workgroups 3.11, were basically a GUI that ran on top of DOS. You had to start Windows by typing the command WIN at the command line, or add the command to a file called AUTOEXEC.BAT, so that Windows would automatically start when you booted the computer.)