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FreeWPC is a software framework for writing new software for 1990's Bally/Williams pinball machines. The framework allows you to build your own ROM images, define your own game rules, incorporate dot matrix animations, design lamp shows, and so on.9 weekly downloads
Genesix is a kernel for the x86 (386+) architecture. Written mostly in C and assembly, it is targeted to learning kernel architecture and development essentials.
A operating system designed to be compatable with the linux and uinx software, that is capable of running as a modern operating system.1 weekly downloads
AWOS: The Universal Operating System.1 weekly downloads
FreeDOS-64 is 64-bit Disk Operating System under development for the AMD64 platform.
ArchOpen is a project aimed at providing a fast, light and free operating system and applications for portable multimedia devices based on TI DM&DSC chips. It currently supports a lot of Archos multimedia devices (Gmini402,AV400,...).
learn how to write a hobby os kernel, this project is just for practice.
KittyOS is a small operating system based on Linux. The OS is for USB pendrives and old computers. It uses XFce graphical enviroment.
CrazySoft OS - is a OS writed in Assembler language
The D/OS Project aims to create a complete working operating system written in the D programming language.
LinkOS is a network oriented operating system designed to be run on networking infrastructure (routers, switches, etc).
Dynics is an operating system for the 64-bit IBM-compatible PC, focussing on services for dedicated audio and MIDI processing. Dynics turns the PC into a powerfull and stable studio component. This is one step towards the DSC: Dynics Studio Computer.
Your Ass Os is an Operation system kernel. Whole written in C and assembly, need supporters.1 weekly downloads
This is an Mini Operating System for intel protected mode. This OS is written to understand OS concepts such as paging, VM, multitasking, Interrupt handling. This project is mainly done for educational purpose.1 weekly downloads
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.2 weekly downloads
Develop your own Real Time Kernel. BastKernel is designed both for Hard Real Time Applications and Time Sharing. The BastKernel is compiled under Win32 environment. It's easy to install Bastkernel and useful for educational purpose.1 weekly downloads
Mattise is a simple hobby operating system designed to run fast on 32-bit PCs. A newlib port will be released soon for developers to write their own programs for Mattise.1 weekly downloads
A MOST OMNIMISCHEVOUS AND DISCORDIAN OPERATING SYSTEM FOR SOLVING ALL OF YOUR SOLUTIONS WITH ITS SLEEK SEXY DESIGN.
This project aims to develop the next generation operating system. It is still in late planning/early development stage.
Caracal is an IA32 operating system which, once stable, will be used to create tutorials and therefore teach others the basics of writing system software for IA32 processors.1 weekly downloads
Sugatha is a Real Time (multi-tasking) Operating System to be used in embedded devices.1 weekly downloads
An operating system for an educational robot based on a Nios II board from Altera. Implemented in Nios II assember and C/C++.
xbos is designed to be a way to duplicate xbox games. it works by copying the xbox game disk onto the hard drive, and then burns that data back onto a blank DVD, thus creating a duplicate of the original game.
VeritOS Project is a free operating system, intended to be an educational tool in the workings of x86 hardware.
DRAKE is a true homebrew game console that consists of specially crafted hardware, system software and games.1 weekly downloads