SIMD-accelerated libjpeg-compatible JPEG codec library
AO RTOS is small real time OS based on Active Object concurrency model
Open Watcom C/C++ compilers and tools Fork
A multi-threading framework using a prime sieve to do work
A cute and educational x86 OS
Scanning Probe Microscopy Controller and Data Visualization Software
NES/Famicom emulator based on FCE Ultra.
its an gaming os
OS-9/6809 compatible operating system for Tandy CoCo and Dragon
an MS-DOS compatible OS, written in Pascal and i8086 assembly
A multi-threaded-style OS for the Spectrum +3
An open source filesystem library
OS bootable from Linux,Windows and others partitions as auxiliary OS
A CPU miner for Litecoin, Bitcoin, and other cryptocurrencies
Ubuntu-based Linux Gaming OS
A UNIX-like kernel for the i386 architecture
Mulithreading Arduno library
Written in pure ASM and Exode with cloud computing in mind.