Open Source Desktop Operating Systems Operating System Kernels

ReactOS is an open source effort to develop a quality operating system that is compatible with applications and drivers written for the Microsoft Windows NT family of operating systems (NT4, 2000, XP, 2003).

The AROS Research Operating System is an effort to implement an Open Source and portable operating system that is compatible with AmigaOS(TM). Originally, it was meant as a direct reimplementation, but already has features not existing in AmigaOS.

FreeDOS is an open source DOS-compatible operating system that you can use to play classic DOS games, run legacy business software, or write new DOS programs. Any program that works on MS-DOS should also run on FreeDOS.

GPL source for QNAP Turbo NAS

This project is for the portable computer "Cambridge Z88", produced by Sir Clive Sinclair (of ZX Spectrum fame). We continue to support software development (ROM, 3rd party apps on memory cards and desktop applications). We have moved to https://cambridgez88.jira.com/wiki (development, source code and documentation). However, we continue to publish files for download here.

DOS/32 Advanced DOS Extender is a drop-in replacement for the DOS/4GW DOS Extender and compatibles. Being fast, small and flexible DOS/32A can be used in many environments, from embedded systems to DOS emulators, by both developers and end users alike.

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

First version of OpenVPN opensource software that is compatible with IPv6.

The Saint Jude Project is a Project to develop Kernel-Level IDS mechinisms to protect the integrity of host systems.

While I may have started with Linux 0.11, I've expanded this to include several older relases of the Linux kernel that you can cross compile from Windows, and run on Qemu. I've managed to get the older versions of the software tools running on Windows, so that there is no major invasive source changes, outside of either broken drivers, or massaging the makefiles to find things in the new paths, and calling the appropriate tools where needed. Linux 0.10 is the first oldest version of Linux that is somewhat usable. While it lacks things like TCP/IP, and robust filesystems, it does offer a small kernel size, perfect for playing around with. You can comfortably make changes on Windows, re-compile and test all from a 'normal' desktop.

Schillix is a complete OpenSource operating system based on the source code of OpenSolaris.

nxtOSEK is an RTOS for LEGO Mindstorms NXT. nxtOSEK consists of I/O driver part of LEJOS NXJ, TOPPERS/ATK1 RTOS, and glue code for them. You can write applications for NXT in ANSI-C/C++. Check nxtOSEK site: http://lejos-osek.sourceforge.net

DOS-C Kernel is an MS-DOS compatible kernel and the original FreeDOS kernel.

The Vortex project consists of 2 things. The Vortex OS and VParse. The OS is multitasking and handles a lot of features. VParse is a stand alone Vertex2 parser. Vertex is vortex's scripting language. Pre 0.7 is QBasic and 0.7 is C++.

This is GIMI, the Graphical Interfaced Multitasking Interpreter. One of the few GUIs made in QuickBASIC featuring multitasking. This one has its own script language for making programs, damm fast SVGA modes, lots of programs, and more!

Components supporting real-time, reliability, high-availability, and security services in standard operating environments. Starting with the C5 modular microkernel, a RT-POSIX layer based on FreeBSD 4.1, and the CDE cross-development environment.

This project is an 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.

Longene ( Linux Unified Kernel ) is an open source project sponsored by Insigma Co., Ltd. It aims to implement a kernel module in Linux that provides a system-call and driver layer to allow the Windows applications to run on the Linux OS.

L_Pa is a project / collection of tools aimed at better integration and *performance* of Linux + Wine + jackd + Proaudio applications... L_pa accomplishes this by setting up a proper mix of kernel/software with low-latency/proaudio users _specifically in mind. So far the main components are; Custom version of the (rt-)linux kernel with a delta of patches, for linux proaudio usage. Custom version of Wine with a delta of patches to ensure Wine is ready for proaudio on the linux platform. It's also has various other improvements and bug fixes. You'll want both WineASIO and FSThost; WineASIO - WineASIO provides an ASIO to JACK driver for WINE. https://sourceforge.net/projects/wineasio/ FSThost - FreeST standalone fork; wraps windows VSTs (.dll) into standalone apps / jack clients. + other useful features. https://sourceforge.net/projects/fsthost/ * visit the L_pa wiki pages for more info on usage / other info.

ATOS is a lightweight real-time operating system. It supports pre-emptive scheduling and intertask communication in embedded systems.

This site will be a gift to MenuetOS, a 32 bit assembly coded operating system from Finland, Russia and Hungary.

RMF-DOS is a project to create a compact, 8086-compatible, free clone of MS-DOS.

SchilliX-ON is an attempt to continue the OpenSolaris-ONNV development as OSS project

Mirror of: https://github.com/osdldbt/ This Database Test Suite aims to create database workload test kits used to simulate heavy user loads for OLTP, Decision Support, and e-commerce database transactions. These test kits can also be used to gather performance results for Linux and other