An operating system based on the best Windows NT design principles
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).
Real-time frameworks/RTOS based on active objects & state machines
Real-time frameworks/RTOS for building responsive and modular real-time embedded software as systems of active objects (concurrent state machines). The QP family consists of QP/C, QP/C++, and QP-nano frameworks, which are all strictly quality controlled, superbly documented, and commercially licensable. The behavior of active objects (a.k.a. actors) is specified in QP by means of hierarchical state machines (UML statecharts). The frameworks support manual coding of UML state machines in C or C++ as well as automatic code generation by means of the free QM modeling tool. All QP frameworks can run on bare-metal MCUs, completely replacing a traditional RTOS. Ports and ready-to-use examples are provided for major embedded CPUs, such as ARM Cortex-M, ARM7/9, MSP430, as well as Arduino and mbed. QP/C and QP/C++ can also work with a traditional RTOS/OS, such as ThreadX, FreeRTOS, embOS, and uC/OS-II as well as Linux (POSIX), Windows.
The USB/IP Project aims to develop a general USB device sharing system over IP network. To share USB devices between computers with their full functionality, USB/IP encapsulates USB I/O requests into IP packets and transmits them between computers.
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.
A Simple 'IDE'A for Linux Kernel Developers
LinK+ IDE is a simple IDE for Linux Kernel Developers and Lovers. It is based on Eclipse IDE customized for Linux kernel programming. It reduces the development time and executes code in an elegant fashion. This IDE supports Linux kernel configuration, compilation & emulation, system call development and device driver development. LinK+ IDE includes various templates in the category of character, block and network device driver subsystems for device driver development. It includes various bus infrastructure templates and also provides Linux device driver code completion, code assistance & code navigation for developers. Download - LinK+ IDE for 32 & 64-bit architecture : https://sourceforge.net/projects/linkplustest/files/installers/ LinK+ Update Site (compatible with Eclipse IDE v3.6.x ): http://sourceforge.net/projects/linkplustest/files/repository/ User Manual: http://sourceforge.net/projects/linkplustest/files/documentation/LinK%2B_UserManual_Rev4.pdf
Free operating system for Atari computers, and more.
EmuTOS is a TOS compatible operating system for Atari ST series computers, and more. It is made from Digital Research's GPLed original sources and is a free and open source alternative to Atari proprietary ROMs.
Tool kit for building highly secure special-purpose operating systems
The Genode OS Framework is a tool kit for building highly secure special-purpose operating systems. It scales from embedded systems with as little as 4 MB of memory to highly dynamic general-purpose workloads. Genode is based on a recursive system structure. Each program runs in a dedicated sandbox and gets granted only those access rights and resources that are needed for its specific purpose. Programs can create and manage sub-sandboxes out of their own resources, thereby forming hierarchies where policies can be applied at each level. The framework provides mechanisms to let programs communicate with each other and trade their resources, but only in strictly-defined manners. Thanks to this rigid regime, the attack surface of security-critical functions can be reduced by orders of magnitude compared to contemporary operating systems.
Generic SCSI target subsystem for Linux SCST allows creation of sophisticated storage devices. It includes generic SCSI target core with SCSI target drivers and backend handlers. There are target drivers for iSCSI, Fibre Channel, SRP, SAS, FCoE, etc.
UEFI GTP fdisk is a disk partitionning tool running under UEFI/BIOS
UEFI GPT fdisk is a port to UEFI of the famous GPT fdisk partitioning tool, see http://sourceforge.net/projects/gptfdisk/ . Now since this program runs directly under UEFI shell you don't need to *boot* the system to convert/edit partition tables.
Haiku is an open-source operating system currently in development designed from the ground up for desktop computing.
Nucleus is an Operating system Kernel that is totally different from Linux and Windows. It is easy to understand and implement. It will have native support, small architecture and full VGA support (no text mode).
Simple AVR OS
An Embedded System simple Operating System Framework that allows rapid development of applications build for AVR family but can be ported to other architectures easily enough. System is Round-Robin Co-operative multitasking. Supports: UART, SysTick Timer, ADC, SPI, EEPROM, PWM. Also supports: Xilinx FPGA configuration, FPGA SSI interface, smart card reader etc. Tested partially (different modules in each case) on ATMega163/16/32/323/8. Additionally tools for converting FPGA bitstreams to C table are provided.
Collection of all opensource software used on TomTom's GO devices
The classic RPL programming language reimplemented and reimagined.
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.
Custom firmware and IDE for the VEX Cortex Microcontroller
This project has been moved to http://pros.cs.purdue.edu/ PROS is a lightweight and fast alternative operating system for the VEX Cortex Microcontroller. It features multitasking, low-level control, and Wiring compatible functions to harness the full power of the Cortex. With a real-time kernel based on FreeRTOS and a development environment built on Eclipse CDT, PROS uses proven software to increase the reliability and usability of the VEX development system across all three major computing platforms. PROS is currently under active development to make it usable for VEX high school and middle school teams. PROS is intended for advanced VEX users seeking to move beyond competing environments. Eclipse and FreeRTOS have their own licensing agreements. Please see http://www.eclipse.org/legal/epl-v10.html and http://www.freertos.org/a00114.html for details.
Infortus is a hobby OS. It's written in C and Assembly.
Android, DOS, FirefoxOS, Linux, MacOS and Windows all in one..
Sensa is not an operating system, is a work environment compatible with Android © 4.4.4, Firefox OS ©, Linux Ubuntu 12.12 ©, MacOS Classic 7 ©, MS -DOS © operating systems, and Microsoft Windows 8.1 ©; whose distribution is free, and with source code available under GNU GPL 2.0 license .
The OpenSSI project is a comprehensive clustering solution offering a full, highly available SSI environment for Linux. Goals for OpenSSI Clusters include availability, scalability and manageability, built from standard servers.
COBE is a operating system, wich is right in developing. Stay tuned.
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.
A new simple operating system
A basic operating system that can realize some basic functions. It is developing for educational purposes. It is being developed simultaneously with sslib, the Simple Standard Library for developers program no-OS apps, program NuOS commands or program an operating system.
Open Source NetWare Kernel (MANOS) written by the Timpanogas Research Group in Orem Utah and released under the GNU Public License in 2000 and 2001. Written by Jeff Merkey and Darren Major, original authors of the SMP Novell NetWare kernel.
ViRT-K is a virtual Real-Time Kernel for the Cell Broadband Engine running under Linux
Real-time, modular, microkernel-based operating system under development for i386. The first goal is to support 32-bit DOS protected mode applications made with DJGPP as well as native applications.
An open source operating system for x86.