Question

What do you understand by DOS? why is it known as CUI. write answer in easy language​

Answer 1

A disk operating system (abbreviated DOS) is a computer operating system that resides on and can use a disk storage device, such as a floppy disk, hard disk drive, or optical disc. Short for character user interface or command-line user interface, CUI is a way for users to interact with computer programs.

Explanation:

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Answer 2

Answer:

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