Contemporary desktop operating systems other than Linux include;
Proprietary
- Microsoft Windows 95, 98, Me, XP and Vista
- Apple Mac OS X
- SkyOS
Free
- FreeBSD
- NetBSD
- OpenBSD
- PC-BSD (based on FreeBSD)
- RoFreeSbie (based on FreeBSD)
- FreeDOS (MS-DOS clone, open source)
- Sun Microsystems Solaris (semi-proprietary)
- ReactOS (Windows compatible, open source)
- Haiku (BeOS clone, open-source)
- Syllable (Amiga clone, open-source)
- MenuetOS (64-bit closed-source, 32-bit open-source)
- KolibriOS (open-source, based on MenuetOS)
- ArOS (Amiga imitator, open-source)
- WebOSs such as eyeOS and DesktopTwo