Developers keep making operating systems to call their own. Maybe out of pure vanity we take pride of their programs or set of inter-related programs as an operating system. The following list is in alphabetical order.

E/OS LX is a desktop for MS-DOS, compatible with Linux and Win32 applications. It runs on an i386 with 8 MB of RAM. There is a Lite version that only needs 4 MB of RAM.

Menuet is written in Assembly and fits in a floppy. It needs mouse, i386, 32 MB of RAM and 1 MB Display Vesa 2.0+ LFB. I have not been able to make this OS run yet.

NewOS is an operating system that is under development written in C, C++ and assembly. This operating system can fit on a floppy.

ReactOS is a project to create an operating system compatible with the Windows NT kernel, DOS, OS/2 and Java subsystems. According to the developing group, this system is 93.8% complete, current version 0.3.0 RC1

SEAL is a 32-bit graphical user interface for DOS. It runs on an i486 processor with 8 MB of RAM, DOS 3.0 or higher and at least 1.6 MB of hard disk space.

YouOS is an on-line operating system developed by MIT Labs. The main idea of this system is to run applications without the dependency of hardware, fully accessible using Internet Explorer 6.0 and Firefox 1.0.7 (Windows) and Firefox 1.5 (Windows or Mac) and to concentrate all development on a single language, JavaSript. The system is currently running on Linux with its own file system, YouFS, where users can save files. I have been playing with this system since 07/25/2006 and this general idea although not new might be the future of desktop operating systems.