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COS is an Open Source Operating System, which is currently in development. It is made from scratch, except it uses GRUB as a boot loader. Comments would be kindly taken, and all criticism is accepted.
A8E is a freeware Atari 800 XL emulator written in C by Sascha Springer and has been developed completely from scratch. It uses the SDL and OpenGL (optional) library for the user interface and the audio and graphics output.
Project-Sparroh is a hobby operating system project. Goal is to write an OS from scratch for the purposes of learning how they work and for fun. An assembler and high level language cross-compiler will also be written first and used to build the OS.
WahoviOS is a 32-bit Protected Mode OS made from scratch in NASM, intended to provide a simple, portable environment for running Allegro library programs in.
Upgrade to the newest releases of Fedora, Scientific Linux, and CentOS without reinstalling from scratch. Most of fedora-upgrader was written using the guidelines from Fedora Project's YUM upgrade Wiki (http://fedoraproject.org/wiki/YumUpgradeFaq).
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.
libEPOS is a C library to control the EPOS motor control from maxon motor ( http://www.maxonmotor.com ) using a GNU/Linux system. This software is NOT from maxon motor, but was written from scratch by Marcus Hauser and others. The tar file is outdate
libposix is a bold attempt to unify the impementation of the core functionality of all Unix systems. libposix is a full, cross platform, implementation of the POSIX 2008 standard written from scratch.
This project represents public knowledge on how to build linux from source booted from a host distribution or live CD. It is a combination of Linux From Scratch, Beyond Linux From Scratch, Hardened Linux From Scratch, and other open-source packages.
Scratch pad is a simple gui tool store and manage text notes, It use tree like index (folder and file) manage data, like many file manager. It store notes in a single database file use sqlite.
A set of tools to build your own customed Linux distribution with more managability than raw LFS(Linux From Scratch). Include source package manager, file system backup and realtime mirror apps, and some assistant data structure writen in Python, etc...
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.
Nx is a simple (yet only x86) multiprocess operating system kernel written in C (and some parts in assembly) from scratch. Our goal is to achieve high performance, speed, flexibility and security by using the simpliest possible design.
ManRiX is an open source microkernel based operating system with POSIX interface. It is written from scratch using C and Assembly. Microkernel contains just few basic components of an Operating System while others are implemented as user process.
LifoBot is a simple robot built from scratch using a Gumstix embedded system. It is controlled via bluetooth and is able to move exploiting two engines. This is a didactic project designed for people wanting to learn something new.
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.
Operating system project from scratch to design and implement all components from boot strapping,hardware interrupts , memory manger ,file system , etc .
chaos is a new operating system - written from scratch by a young group of people. Unlike most other systems, we do not try to reimplement something else, but rather tries to do things in our own (hopefully better) way.
An educational 3D game, developed at CERN for its 50th anniversary exhibition. Basic GRID concepts such as Resource Broker and Replica Manager are visualized. Written from scratch with minimal dependencies (SDL, openGL), runs both on Windows and Linux.
It's a new GNU/Linux distribution, based on Linux From Scratch, with focus on easy complete and non-redundand system administration made with a simple textual command-line interface and in the interoperability with Windows (Further with other OS).