निम्नलिखित में से कौन सा CUI ऑपरेटिंग सिस्टम है?
Which of the following is a CUI operating system?
A
DOS
B
Windows 10
C
Windows 7
D
Windows XP
Explanation
The correct answer is:
(A) DOS
DOS (Disk Operating System) is a CUI (Character User Interface) operating system. It relies on text-based commands, and users interact with it through a command-line interface rather than graphical windows.
The other options (Windows 10, Windows 7, and Windows XP) are GUI (Graphical User Interface) operating systems, which use graphical elements like icons, windows, and buttons for user interaction.
Correct Answer: A) DOS
