Open Source Server Operating Systems Operating System Kernels

Contiki is an open source, highly portable, networked, multi-tasking operating system for memory-constrained systems. Contiki current source code: https://github.com/contiki-os/contiki Contiki historical source code: https://github.com/adamdunkels/contiki-1.x

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.

Cooperative Linux is the first method for optimally running Linux on Windows and other operating systems natively. It is a port of the Linux kernel and support code that allows it to run cooperatively without emulation along with another operating system.

A Linux operating system, designed and developed to be beautiful, simple, fast, and stable on many computer hardware.

7-max increases the performance of some applications up to 10-20%. Windows uses small (4 KB) RAM pages by default. 7-max allows to use large (2 MB) RAM pages.

UUMATE is a respin of Ubuntu Mate (https://ubuntu-mate.org/) The main goal of this project is simple: Just have an updated Ubuntu Mate 64bit ready to install, with full multimedia support, compiz, many extra applications and some cosmetic changes. Many PPAs/Repos already available. Event sounds (minimize, maximize, close, etc...) enabled by default you can enable/disable compiz using "mate-tweak"! No need to download hundred megabytes after installation! Note: To burn the ISO to a USB stick, use "dd" command. In MS Windows use Rufus. This ISO is helpful for people trying to install linux for the first time or coming from windows environment. It has plenty of software pre installed (some are trial/shareware) with full internet and multimedia support. Very useful as live media as well. It has audio/video codecs, flashplayer, java, googletalk, telegram, twitter, etc... Changelog: http://sourceforge.net/p/uumate/blog

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.

This project reimplements from scratch the RPL language made popular by HP programmable calculators, in portable C/C++. The main goal is to release a complete computing environment for various targets. There's currently 4 active targets: the HP 50g, HP39gs and HP40gs calculators and a PC simulator (see the downloads section!). Other ports are planned for the future.

Open Source SW/HW Project for Embedded Ethernet Applications. Works with AVR ATmega256/128/103, AVR32, SAM7X, SAM7S(E), SAM9, AT91X40, GameBoy Advance, Cortex M3 / M4 (STM32, NXP LPC, LM3S), Freescale Coldfire, RTL8019AS, LAN91C111, CS8900 and DM9000E chips. Offers a tiny TCP/IP stack including HTTP, FTP and DHCP.

Public Domain Operating System (currently x86 and 80386 and S/370 and S/390). Note that latest source code is here in git, but latest executables and packaged source are at http://pdos.org

Native Oberon Operating System

Haiku is an open-source operating system currently in development designed from the ground up for desktop computing.

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]

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 jody@c02ware.com.

ButterflyOS is a very simple operation system for the Atmel AVR Butterfly board. It's based on the AvrX multitasking scheduler, created by Larry Barello. A byte-code program for ButterflyOS, can be sent and managed through the serial interface.

Real Time Minix is an operating system designed for experimenting and learning Real Time OS concepts. This OS is the modified version of Minix3.1.3 and Minix4RT. Also interested learners can become developers.

SO1 es un proyecto para crear un sistema operativo sencillo con el que poder explicar rapidamente los conceptos implicados en el desarrollo de estos sistemas. SO1 permite que los estudiantes consoliden sus conocimientos prácticos de sistemas operativos ampliando el sistema que se ofrece de partida.

Here you can find both an Oberon V4 system for Linux (x86) and a collection of Oberon V4 sources for various other platforms. Oberon V4 was implemented at ETH Zurich for several platforms. Binaries can be found on their server[1] and on the one of the University of Linz[2] where Mössenböck's group did further development after he left ETH and the Group at ETH concentrated on System 3. More Information can be found in the wiki https://sourceforge.net/p/oberon/wiki/Home/ of this Project and on Wikipedia https://en.wikipedia.org/wiki/Oberon_(operating_system). In 2013 they were moved here for easy access and, in case of interest, collaboration on further development. The Oberon mailing list[3] is an established channel for its discussion and followed also by the administrators of this SF project. [1] ftp://ftp.ethoberon.ethz.ch/Oberon/OberonV4/ [2] ftp://oberon.ssw.uni-linz.ac.at/pub/Oberon/ [3] https://lists.inf.ethz.ch/mailman/listinfo/oberon

Graphical OS Kernel compiled with gcc 4.6.1 and nasm 2.09.08

TempleOS is a 64-bit kernel with compiler, graphics library and tools. It is not a Unix. It was made from scratch.

AVR32-FreeRTOS project is dedicated to the port of the FreeRTOS real-time kernel to the Atmel AVR32 32-bit AT32AP700x processor familly . For uc3 version port of the FreeRTOS, please check www.freertos.org !

Adamant Space (AS) utilizes many new Technologies to realize high GameSpeed (3D-Graphic, InterActions) with highly resoluted Space/Time in a huge geodic World (Globe) and GamePlay comprises complex Interactions between GameObjects and real Players. Many GameGenres are intended to cover resp covered Aspects inside GameWorld allow to cover a Lot of different known Game-Genres like RPG RolePlayGame, RTS RealTimeStrategy, MUD MultiUserDungeon, ESG EconomySimulationGame etc. It's not about Covering GameGenres but about Covering (most basic) Features of Reality like Needs/Consume/Production/Trade as Base for Economy. Defined MileStones on RoadMap are: GEO: physical Model of Enviroment, BIO: Flora&Fauna with LifeCycle (wo Darwin), PSY: Life do AI to get their Food&Water&etc., ARCH for Constructions and Building. If that MileStone got archieved adding Features means adding GameFun and next Add is: ECO -- a real Economy of real economizing Individuals which represent real Markets.

Why do it the tradidtional way when you can do it a new way? Why use an existing wheel when you can reinvent it yourself? Why do it the easy way when a hard was exists? Why? Because we are professional geeks!