A BSD-based OS project that aims to provide an experience with MacOS
Scalable, optimized, secure RTOS for multiple hardware architectures
Real-Time Event Frameworks based on active objects & state machines
A cute and educational x86 OS
OS bootable from Linux,Windows and others partitions as auxiliary OS
PRTOS is a simple, compact preemptive RTOS for embedded systems
Mulithreading Arduno library
An indie, hobby operating system
Small real time operating system for AVR and ARM microcontrollers
Embedded Real-Time Operating System (RTOS)
A new OS
Hard Real-Time OS compliant to the Osek/Vdx standard.
Mayax is a 32-bit hobby OS with windows style GUI.
An operating system based upon the MOSA kernel.