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Which of the following is non pre-emptive OS?

a) DOS b) UNIX c) LINUX d) WINDOWS 2003

Krishnakumar Anbalagan
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    Voting to close because not about programming, possible homework and a simple thing to find out using a few second on the web – Sami Kuhmonen Mar 17 '17 at 06:10

1 Answers1

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DOS is not a pre-emptive operating system, while Unix, Linux and versions of Windows from 1995 onwards are pre-emptive.

Alex Boxall
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