smallest os in the world

Kolibri is a small x86 assembler hobby operating system. It forked off MenuetOS in 2004 and has mostly been developed by ex-USSR community since. API and ABI is being enreached with developer-frendly features. User interface is not that good as we used with other os.



Download it from here
http://www.kolibrios.org/releases.html

MenuetOS

This another small operating system in world. MenuetOS is an Operating System in development for the PC written entirely in 32/64 bit assembly language. Menuet64 is released under License and Menuet32 under GPL. Menuet supports 32/64 bit x86 assembly programming for smaller, faster and less resource hungry applications.
To know more click below
http://menuetos.net/