512DevOS is a GPLed operating system that runs on 16 and 32 bit x86 compatible computers. The kernel and shell fit in 512 bytes and occupy only the first sector of a floppy disk.
A new advanced customizable graphic menu multi boot and OS loader based on XOSL project with gujin project features, this project integrate too a mini OS to provide certain customizable specialized maintenance tasks before boot partition/load OS target.
Agnix is an educational, network operating system kernel. It is ideal starting point to learn about operating systems. The main goal of the project is to provide a network kernel fully compatible with the Linux Kernel in the system call layer
A operating system designed to be compatable with the linux and uinx software, that is capable of running as a modern operating system.
This is an OS kernel for arm920t platform.
This is a kernel driver for the BCM5974 multitouch device, currently present in the Macbook Air and Macbook Pro Penryn mactel machines.
BOS – B.lu operating System, is an operating system dedicated to small microcontrollers and CPUs without MMU. Actually is dedicated to Texas Instruments MSP430 microcontrollers (it can be ported to other CPUs without great changes)
BLibrestez Robotics Software Library Project
http://sourceforge.net/feeds/p/PROJECT-BLIBRESTEZ55ROBOTICS/issueupdates/basic BLIBRESTEZ55ROBOTICSPROJECT/downloads/basic http://sourceforge.net/feeds/p/PROJECT Copyright©2011-2020 BLibrestez55Ro
BNL OS is a free, modern operating system based on the design of Windows XP/2003.This is not a Linux based system, and shares none of the unix architecture. Please remember, this is in the development stage, and is not reccommended for everyday use.
Barbux, the bearded people OS
Blueport is an italian Open Source 32-bit operating system ... This project has temporarly moved to Gna.org: <a href="http://gna.org/projects/blueport">Blueport project</a>
The BohOS Operating System is an OS based on μMPS machine (http://mps.sourceforge.net/), divided into six layers. Each layer provides an abstraction layer to the i+1 layer.
COS - Component-based Operating System
CapROS is an experimental capability-based operating system, based on EROS, KeyKOS, and Gnosis. Ports exist for the Intel IA-32 and ARM9 architectures.
CleanOS is an operating system developed for educational purposes, initially to be an userspace GNU/Linux application running its executables and simulating the operating system task scheduler and IPC mechanisms. Now it supports a true i386 kernel.
Clicker is a project for a Multitasking Open-source operating system written from scratch. based on a modular micro kernel. We want to explore new way of designing and using OSes :) [newz: PCI, NE2K and VBE]
The CodeTime platform covers every aspect of parallel software from authoring, through distribution, to run-time. Its goals are: high programmer productivity; write once, run high performance anywhere; and wide acceptance.
Crocos is a small opensource UNIX-like kernel, designed with simplicity in mind, for educational purposes. It is developed in several steps to allow people to understand how a tiny operating system can be built from scratch.
The D/OS Project aims to create a complete working operating system written in the D programming language.
With this project I intend to write a really, really simple OS, just for fun and learning. I think I will never have a really usable version, as I said, that's no my objective.
This are the GPL-kernel Sources of Motorola's E680, E680i and A780. Projects main goal is to share this sources to every interested one. Second goal is to share kernel modules, based on this sources. Dont hesitate to contact me if you build modules.
ELKS is a subset of the Linux kernel that runs on IBM compatible PCs from 8086 up. It is intended to get use out of obsolete old hardware, for use in embedded systems, and as an educational tool. ELKS has been moved to Github to protest SourceForge's installer adware hijacking. This does not directly affect ELKS, but it does affect many major open source projects such as Gimp and FileZilla by attempting to trick the user into installing adware in order to download these programs. I refuse to leave ELKS here with such policies in effect. If you have questions about this, please email firstname.lastname@example.org.
Free operating system for Atari computers, and more.
EmuTOS is a TOS compatible operating system for Atari ST series computers, and more. It is made from Digital Research's GPLed original sources and is a free and open source alternative to Atari proprietary ROMs.
An operating system based upon the MOSA kernel.
An operating system based upon the MOSA kernel. Currently still in the design process.
The Fecundity Project has the purpose of creating a streamlined AMD64 based Operating System. We will hopefully create a stable and secure operating environment, and to investigate orthogonal persistence.