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Popcorn is a new 32-bit operating system kernel for x86-based computers. It currently features super-fast speed (no bloatware) and small size.1 weekly downloads
LukOS is operating system written in C++1 weekly downloads
The Dynamo Kernel Project intends to create a functional yet modular, powerful yet scalable microkernel for home, business and industry.1 weekly downloads
Wspólny projekt społeczności OSDev.pl
OnyxOS is a 32 bit protected mode operating written primarily in C with a small amount of ASM. It aims to be a small OS useful for learning low-level OS development and provides a base for other hobby OSes to grow from. It features a shell called Slosh.
Multiple RX threads is a kernel module designed for improving networking performance for NAPI on multi-core system.1 weekly downloads
Unix-like operating system for the TI-89 and TI-92+ graphing calculators.3 weekly downloads
MightyOS is a serious attempt at making a fast and lightweight Operating System written in C++.
OSNOS (Open Source Network Operating System) is an operating system desigend to meet the needs of small to medium networks. It will support server based applications, and will handle routing of packets through the network, and support multi-user logins.1 weekly downloads
crowOS aims not to be a big, wide-spread OS, but only a sort of hobbie-OS of mine, mainly for fun and to learn more about what is going on "under the hood". For now, it will be based on the x86-architecture, written mainly in C but also some Assembly.
Aurora OS is an operating system designed in a microkernel format for all users. The object is to develop a modular, mulitplatform, multitasking Operating System that is simple, effective, and powerful.
The CodeTime platform covers every aspect of parallel software from authoring, through distribution, to run-time. Its goals are: high programmer productivity; write once, run high performance anywhere; and wide acceptance.
This is simply a kernel written in C and assembly targeted to rebuild the majority of software, libraries and tools to create a stand alone software solution.1 weekly downloads
NotOS is multitasking, multithreading simple operating system based on monolithic kernel. NotOS haves paging-based memory management and software-based task switching. It works on Intel Pentium processor and others, based on Pentium.
Compilation of kernel linux with many improvements and new functionalities.126 weekly downloads
TomOS is a simple 16 bit operating system for x86. It is based on MikeOS version 2.0.0. It is entirely written in the assembly language. TomOS is an educational project.3 weekly downloads
An ASCII MMORPG / World Simulation / Genetic Programming Project1 weekly downloads
Knuth NNIX operating system kernel
This project is an SO with a bootloader, a kernel, and posiblely modules1 weekly downloads
StrikeRange Appliance platform.
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.10 weekly downloads
I'd wanted to plan 3 OSes. Hobby is most flexible. So THAT. with linux, WinME+ and darwin methods. 1st efforts- newer, usb, sata+, 64bit-multicore cpus. . At most, 64-bit, 32-bit compat graphical safe-mode command-line... Primarily. a KERNEL
uOS is a Micro Operating System designed for developers.
Occam aims to be an extensible, distributed, object-oriented, and secure operating system. It is currently in the planning stages.
Its a tiny open source Operating System created mainly aid in study of Operating Systems. It's floppy based, uses FAT-12 filesystem with complete shell and basic commands. It created in C and assembly (gcc + nasm).1 weekly downloads