DOS का उपयोग क्या हैं ? – McqOptions

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1.	DOS का उपयोग क्या हैं ?
A.	नपुटतथाआउटपुटकार्यों को नियंत्रित करना
B.	यूजर तथा कम्प्यूटर के बीच संबंध स्थापित करना
C.	केवल 1 सही है
D.	दोनों ही सही हैं
Answer» E.

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