This post is about the desktop operating systems that fly under the radar of most people. We are definitely not talking about Windows, Mac OS X or Linux, or even BSD or Solaris. There are much less mainstream options out there for the OS-curious.

These alternative operating systems are usually developed either by enthusiasts or small companies (or both), and there are more of them than you might expect. There are even more than we have included in this article, though we think this is a good selection of the more interesting ones and we have focused specifically on desktop operating systems.
As you will see, many of them are very different from what you may be used to. We will discuss the potential of this in the conclusion of this article.

Enough introduction, let’s get started! Here is a look at 10 alternative operating systems, starting with a familiar old name…

AmigaOS 4.1

This month (September 2008) AmigaOS 4.1 was released. Although AmigaOS is a veteran in the field (many have fond memories of the original Amiga computer), its current version is a fully modern OS.

AmigaOS only runs on specific PowerPC-based hardware platforms. The company ACube is currently marketing and distributing AmigaOS and is going to bundle the OS with their motherboards.

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