Nucleus is an Operating system Kernel that is totally different from Linux and Windows. It is easy to understand and implement. It will have native support, small architecture and full VGA support (no text mode).
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]
Perix is a 16/32 protected mode kernel, bootable and capable of running without an operating system. It is written in Turbo Pascal 7.0 for DOS, Delphi 7.0, Pascal Pro, Virtual Pascal v2.1, TASM and JWASM. Turbo pascal version can be used as kernel on its own, or as a second stage loader to external programs. I would like to announce, that the first attempt to put the Delphi 64bit to work was successful. As soon as possible I will place at the disposal a very small 64bit kernel version.
A multi-tasking, multi-threaded micro-kernel operating system for the x86 platform.
Real-time, modular, microkernel-based operating system under development for i386. The first goal is to support 32-bit DOS protected mode applications made with DJGPP as well as native applications.
IBOX is a "modular" operating system for the X86 desktop. The main goals of this os are: Portability, Stability, Security, and Customizability.
An open source operating system for x86.
fast single-privilege single-address-space preemptive-multithreading persistent data-centric secure multiuser operating system with safe-language and reconfigurable graphical interface
An operating system written in RTL
The Controlix operating system is written in RTL and is designed to be modular, synchronous, distributed, verifiable and retargetable.
Minirighi is a multi-threading open-source operating system written for didactic purpose. It has been written from scratch and it is compatible with POSIX.
A operating system designed to be compatable with the linux and uinx software, that is capable of running as a modern operating system.
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.
FreeOS/1 is a Free, Open Source, FreeDOS based Free and Open Source Alternative OS, with open source Microsoft Windows compatibility using HXDOSExtender KernelEx,and ReactOS source code. FreeOS/1 will include new technologies and will be easy to use
The aim of this project is to develop a modular operating system for the i386 architecture, where each device driver, file system, etc, will be a module that can be loaded and unloaded at run-time from the system.
A new simple operating system
A basic operating system that can realize some basic functions. It is developing for educational purposes. It is being developed simultaneously with sslib, the Simple Standard Library for developers program no-OS apps, program NuOS commands or program an operating system.
A rethinking of the Operating System Ecosystem.
This is the fifth or sixth generation of this idea, the big difference being that we have written some bootloader code and have started mapping out the kernel layout and structure. We have decided upon a core programming language for the kernel, and the core language for almost everything else. With a focus on isolating the MAJOR kernel features from the system itself, in what until now has remained research only instances, we hope to create a fully functioning exokerne. All code at this time will be available only via a git repository.
yaMOS stands for: yet another "My Operating System". This is a hobby Operating System, let's see to what it develops... At the moment it's only a kernel written in C++ and Assemly.
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.
self-sustaining consult and counsel agency/agent server/client. Root alias is the OS, which runs on Windows/Linux/Talon operates on or independently of all OS through intuitive protocol based parallel wiring diagramming It's really an exciting build. M
AWOS: The Universal Operating System.
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.
Andalus is an x86 based OS kernel
Free and simply RTOS for AVR at assembler. So far, the AVR Studio is used as a development environment. The system supports the preemptive and cooperative multitasking modes, semaphores. Use a small amount of memory for tasks.
Aurora OS is an operating system designed in a microkernel format for all users. The object is to develop a modular, mulitplatform, multitasking Operating System that is simple, effective, and powerful.
AxionOS is (to be) a operating system for the Axion Prototype Computer (APC) which is basically a notebook. Currently the project is in its childhood, but the idea is simple - To create an intuitive, user-friendly operating system for the APC.