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. Though the article doesn't go into much detail about the OSes, it is a good round up of some of the interesting candidates.

1. AmigaOS 4.1 – Read at Hyperion Entertainment VOF and ACube Systems SRL
2. Haiku
3. ReactOS
4. Syllable Desktop
5. SkyOS
6. MorphOS
7. AROS Research Operating System
8. MenuetOS
9. DexOS
10. Visopsys

Source:→ OSNews