Your Question: Which Operating System Is Not Unix Based?
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Which operating systems are not Unix based?

The most obvious answer is Windows: both the NT line and the older ones are not UNIX based at all. Others I can think of are much less mainstream… The classic Mac OS (before Mac OS X), the AmigaOS incarnations, BeOS. Symbian, Newton OS and the old Palm OS, if you want to look into mobile OSes as well.

Are all operating systems based on Unix?

Aside from Microsoft’s Windows NT-based operating systems, nearly everything else traces its heritage back to Unix. Linux, Mac OS X, Android, iOS, Chrome OS, Orbis OS used on the PlayStation 4, whatever firmware is running on your router — all of these operating systems are often called “Unix-like” operating systems.

Marcus Vance

Marcus Vance

Cybersecurity & Digital Privacy Researcher

Marcus Vance is a cybersecurity auditor and technology writer dedicated to educating the public about online safety, data privacy regulations, enterprise security, and emerging cyber threats.

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