First Microsoft OS
Posted Jul 17, 2013 22:59 UTC (Wed) by man_ls
In reply to: The 3.11 merge window closes
Parent article: The 3.11 merge window closes
I also expect that most people here already know this, but Microsoft's first operating systems were Unix variants, not DOS.
I found a detailed article
which does not agree: apparently the first Xenix release was late in 1982, while DOS
was released in August 1981. It is true that Microsoft had been working on Xenix since before they started with DOS, though. So it depends on how you define "first operating systems".
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