Building and running ancient Linux on Windows
A multi-threaded-style OS for the Spectrum +3
Tiny Kernel is a work in progress Operating System kernel.
Simplest kernel for cooperative multithreading
An little operating system
Real time preemptive embedded multi-thread kernel
Ubuntu-based Linux Gaming OS
A UNIX-like kernel for the i386 architecture
Mulithreading Arduno library
FreeMiNT is a free alternative OS kernel for Atari systems & clones
Run Linux on Windows or other OSes, natively.
64-BIt Operating System with Compiler
Linux kernel port for the ADI's Blackfin and future processors
a UNIX GUI to monitor Core i7 & Core 2 processors
My own operating system.
Buildroot Linux distribution for ADI Blackfin and future processors.
Kestrel is an experimental kernel runs on i386
Embedded Real-Time Operating System (RTOS)
Yet another Kernel - clone the git repo for newest version