An operating system based on the best Windows NT design principles
A tapas/topaz/sapphire kernel optimized for smoothness and low-memory
Building and running ancient Linux on Windows
16 bit real mod minecraft clone running in bios
amforth is an extendible interpreter on microcontrollers
AO RTOS is small real time OS based on Active Object concurrency model
Software development for 4Mb portable, using Z80 CPU and AA batteries
Alternative operating system for x86 computers
A microkernel-based multiserver operating system written from scratch.
OS-9/6809 compatible operating system for Tandy CoCo and Dragon
Indipendent distro uses inary package system. Sulin is roolling donkey
Simplest kernel for cooperative multithreading
OS bootable from Linux,Windows and others partitions as auxiliary OS
An little operating system
Message passing microkernel-based Operating System for ZX Spectrum +3e
UNIX/LINUX and legal homebrew software on the xbox360 gaming console
RTOS for Secure, Safe and Real-Time Systems
Real time preemptive embedded multi-thread kernel
Real-Time Embedded Operating System
A Debug style tool for OS Free systems