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When did IBM release the first version of disk operating system DOS version 1.0? A. 1981 B. 1982 C. 1983 D. 1984 E. None of the above

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Question added by Emad Mohammed said abdalla , ERP & IT Software, operation general manager . , AL DOHA Company
Date Posted: 2014/12/10
Emad Mohammed said abdalla
by Emad Mohammed said abdalla , ERP & IT Software, operation general manager . , AL DOHA Company

Answer: Option A

Explanation:

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