Operating System Kernel

TOS is an experimental operating system kernel which is written in our strictly and statically typed assembly language, TALK. Today, computers (PCs, cell-phones, etc.) are widely used in the world and their network become one of the indispensable social infrastructures. Therefore, the... Platforms: *nix

DEX Extensible Operating System is an operating system specifically designed for educational and research use. DEX Extensible Operating System allows for the dynamic reconfiguration and customization of various system services using concepts found in extensible operating systems. It aims to... Platforms: *nix

LoseThos is a 64-bit, multi-cored, ring 0 only, preemptive multi-tasking, open source, public domain, free, x86 PC operating system written from scratch. It is not a unix. Its purpose is for recreational programming. It has no networking. You will dual boot LoseThos or run it in VMWare because it... Platforms: Not Applicable

The Contiki Operating System is mostly known as an operating system for networked embedded systems. A few years ago, however, Contikis primary claim to fame was its Commodore 64 port. With the help of JAC64, a Java-based C64 emulator developed by my colleague and fellow Contiki developer Joakim... Platforms: *nix

Inferno is a compact operating system designed for building distributed and networked systems on a wide variety of devices and platforms. Inferno was originally developed at Bell Labs (the research division of Lucent Technologies). Inferno Operating System is a well-designed, economical... Platforms: *nix

Agnix project is an embedded real-time network operating system kernel. It is a small, educational operating system kernel for i386, supporting 32-bit protected memory mode, paging, hardware switched tasks, memory tests, PCI bus, devices, PCI IRQ routing, RT timers, network protocols. It is... Platforms: *nix

Tampa Network Operating System (TNOS) is an Amateur Radio application providing a BBS, chat, and many other internet servers. It has been in development since 1991 and is used world-wide.The current release (3.0) is ONLY available (at this time) via Platforms: *nix

Real VMX is a VxWorks like operating system kernel released under LGPL. It should support multiple hardware architectures, only i386 support now. Help wanted with ports to other architectures. Development is done on Linux with the GNU gcc compiler. Platforms: *nix

The goal of the Basic Operating System (BOS) project is to write a new modular and fast operating system in NASM and GCC. Platforms: Windows, Mac, Linux

JNode is a Java New Operating system Design Effort. JNode is a simple to use and install Java operating system for personal use on modern devices. Any java application runs on it, fast and safe. See our homepage for additional information. Platforms: Windows, Mac, Linux

Nemesis is a tiny real time operating system kernel based on x86 PCs.Its main purpose is to serve as a simple but realistic example of an real time OS kernel running on real hardware..the purpose of this is that it can be embedded in small devices lik Platforms: Windows, Mac, Linux

POSYS: Programmers Operating SYStem. A small, fast, dynamic, secure OS project. (In development) Language: NASM + CC386. Platforms: Windows, Mac, Linux

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. Platforms: Windows, Mac, Linux

GeekOS is a tiny operating system kernel for x86 PCs. Its main purpose is to serve as a simple but realistic example of an OS kernel running on real hardware. (Actually, most of the development is done on the Bochs emulator.) The goal of GeekOS is to be a tool for learning about operating system... Platforms: *nix

FreeVMS is an OpenVMS-like operating system which can run on several architectures like i386, PPC, Alpha, and many others. FreeVMS consists of a POSIX kernel and a DCL command line interpreter. The only architecture currently supported is i386.. Platforms: *nix

The Prex project is an open source initiative to provide a portable real-time operating system for embedded systems. This project originally started to make a royalty-free OS for mobile phones and PDA in order to spread open source movement to such proprietary OS field. And now, the project... Platforms: *nix

RT-Thread is a real-time operating system. It is designed specifically for small memory footprint platforms. The kernel supports the tranditional RTOS services, such as multiple threads, semaphores, mutexes, event flags, mailboxes, etc. RT-Thread project also provides a C-expression interpreter... Platforms: *nix

Cool Linux CD is a bootable CD with Linux operating system that contains a 2.4 kernel and many free software packages. Whats New in This Release: - Kernel 2.4.20-wolk and 2.4.22 with supermount, squashfs, shfs patches and ALSA 0.9.6 drivers; - Ability to choose a version of linux kernel and... Platforms: *nix

Visopsys is an alternative operating system for PC compatible computers. Under development since late 1997, this system is small, fast, and open source. Visopsys features a simple but attractive interface, real preemptive multitasking, and virtual memory. Though it attempts to be compatible in... Platforms: *nix

MirBSD originated as a patch set against OpenBSD-current, an ultra secure operating system and NetBSD derivate, and has since also incorporated changes from NetBSD, a 4.4BSD-derived ultra portable operating system. It features bugfixes, code removal for the sake of simplicity, and feature... Platforms: *nix