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Syllable Desktop is a complete operating system that is easy to use, powerful, lightweight and extraordinarily fast and responsive. It has its own kernel, filesystem, GUI and applications. Syllable Server is a matching small and efficient Linux server.
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An operating system kernel designed with simplicity, readability, and elegance in mind. No longer written from scratch, but built on "the shoulder of giants." Specifics are given in the CREDITS file starting from v0.04
IdyllaOS is simple operating system. System is based on monolithic kernel with drivers of devices loaded as kernel modules. As required for a modern operating system, it supports features like virtual memory, memory protection and multitasking.
Ace is a micro kernel for developers and researchers. The main goal is to create a very light and compact kernel from scratch with modern OS research concepts.
FrakeOS is a new OS developed by Charles Frake.
Currently, it is a simple bootloader written in NASM. I plan to continue researching Assembly and finish the bootloader. I plan to start coding a kernel in C after the bootloader is finished.
a kernel for many architectures. the kernel is a micro-kernel which can be used as an hybrid- or monolithic-kernel. the kernel is written in assembler and C.
A real time OS based on uITRON 4.0 full specification. You can use dynamic objects and easy to use. This is suitable for 16bit-CPU, even. First target is H8/300H (AKIZUKI AE-H8/3069-LAN). About the ITRON specification: http://www.assoc.tron.org
A port of the Linux operating system kernel and assorted GNU userspace to the GameCube and Wii gaming consoles from Nintendo. Please, see http://www.gc-linux.org for additional information.
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.
It is a minimal linux like kernel for x86 architecture. It is mostly the source code from the tutorial "Roll your own toy UNIX-clone OS" written by James Molloy: http://www.jamesmolloy.co.uk/tutorial_html/index.html It is encoded in a bash script.
Real VMX is a VxWorks like operating system kernel released under LGPL. It should support multiple hardware architectures, only i386 support now. Help wanted with ports to other architectures. Development is done on Linux with the GNU gcc compiler.
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.
The Beowulf Distributed Process Space (BProc) is a set of Linux kernel modifications for easy process management and remote process creation in Beowulf style clusters.
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.
Prex is a portable real-time operating system for embedded systems. The small, reliable and low power kernel is written in C language based on micro kernel design. File system, UNIX process and networking features are provided by user mode tasks.
IFEM (Industrial, Fault tolerant, EMbedded) is a modern OS with a hybrid kernel design benefitting from ideas such as Pure Microkernel and Exokernel, aiming industrial application, fault-tolerance, embedded applications and perfect modularity.