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Caracal Boot Loader (cboot) is a second stage boot loader which takes over from GRUB (or other multiboot compatible loader) and prepares the system for your higher-half kernel. It now also includes VESA mode setting support.1 weekly downloads
An open source operating system for x86.3 weekly downloads
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
Cerberus is an attempt at creating flexible and extremely customizable Operating System that can be used on many types of computer systems including desktops, servers, and embedded solutions.
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, x86.337 weekly downloads
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]5 weekly downloads
Codename Five is an operating system kernel, written as an experiment in learning assembler, written from scratch for x86. It is not (purposely) based on any previous operating system.
Coremark is hardware performance & analysis platform. Coremark is built-on it's own specific kernel allowing stable performance results and direct access to hardware.
CrazySoft OS - is a OS writed in Assembler language
A kernel development project whose main goal is speed.
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.7 weekly downloads
DRAKE is a true homebrew game console that consists of specially crafted hardware, system software and games.
just a small porject
The Danber project aims to create an operating system where both Windows and Linux programs can be run: it is a Windows NT based kernel, but with UNIX user mode compatibility. Support for both PE and ELF executable formats.
DatalOSs is a small experimental i386 operating system, mostly written in C++ It's intended for educational purposes, we don't expect it to provide much useful functionality.
Pre-Alpha Console distro for high performance Linux computing.
New Linux Based OS primarily for smart devices and PDA's, laptops, and eventually desktops. It offers an alternative to the "embedded" approach. All OS versions and applications will be hosted and then made available to the subscribers of cloud svs
The future of information technology will be based on controlling the flow of natural light. This project is an attempt to establish the code (or software) that will enable this to happen. It involves rewriting an OS from the ground up.
DroidLDR is a MultiBoot loader for every Droid Phone
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 weekly downloads
Embedded Operating System
Free operating system for Atari computers, and more.198 weekly downloads
Epi-Cipher RE: is biogenic referral-ware to cure disease with cybenetics. Its specification relates in the design of a universal translator for supply channels on SETI. It features a biological simulator to reseach a tonic for advanced power systems.