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ChibiOS/RT is a free and efficient RTOS designed for deeply embedded applications. It offers a comprehensive set of kernel primitives and supports many architectures: ARM7, Cortex-M0, Cortex-M3, Cortex-M4, PowerPC e200z, STM8, AVR, MSP430, ColdFire, H8S, x86.660 weekly downloads
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.52 weekly downloads
Embedded Operating System5 weekly downloads
An open source operating system for x86.3 weekly downloads
Pre-Alpha Console distro for high performance Linux computing.4 weekly downloads
Jazmyn is a 32-bit, Protected mode, Multitasking OS which runs on i386 CPU`s. Its completely written in C++ & a bit of 8086 assembly. Jazmyn has 4 major parts of an OS : Process management,Memory management, Device management & File system driver.2 weekly downloads
Overnet Millennium Server for Unix Linux1 weekly downloads
A Debug style tool for OS Free systems1 weekly downloads
The project aim to create a microkernel-based operating system from scratch.1 weekly downloads
Fortress OS is an open source modern multitasking operating system. Intel IA-32 386 compatibility. Fortress is clean implemented from scratch. Fortress is still in early stage ( current state at the end of plan 2 ) and needs huge work.1 weekly downloads
A toy operating system built in C++ and x86 assembly.1 weekly downloads
This project is a effort to develop open source software for all old platforms, like MSX, Commodore, AMIGA, Atari, ..... and collect technical information about old platforms, keeping the "old skool" flame alive.1 weekly downloads
Mattise is a simple hobby operating system designed to run fast on 32-bit PCs. A newlib port will be released soon for developers to write their own programs for Mattise.1 weekly downloads
Simple 32/64bit mode OS. Paging, handling exceptions IRQ INT, Basic: PIC/APIC, PCI, kbd, ps/2 mouse, ata. Thanks to wiki.osdev.org and (in alphabetical order): Kicer86, milyges, Nevar, webczat, Wojtulas. (IRC freenode #osdev.pl)1 weekly downloads
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.1 weekly downloads
A little operating system created in order to discover the basis of the modern operating system in practice.
Cellocity Linux is Based on Fedora Core 6 Source Code. With only basic core elements needed to operate Compatipal and a completley Graphic Interface as well as Text. Version 2.0 will include more applications 32,64 bit and 80 Core Intel CPU
The Experimental Kernel Project++ is a microkernel implemented in C++, IA-32 and PowerPC assembly.
FOS - open source 32-bit microkernel operating system.
The Isis OS Project Is a Controlled Project to Develop An Advanced Modern Operating System!
Plex OS is an open source IA32 operating system
Our project focuses the development of an operating system with a most simple implementation and structure. The goal is to provide a good starting point for beginners along with accompanying documents.
Story OS is a small microkernel system with object-oriented service interface.
A port of the Linux operating system kernel and assorted userspace to the Nintendo Wii.
Customize Kernel 64-Bit Operating System