- Amateur OS: AMOS - Scott Billingsley's OS: realtime for DSP and amateur radio, one user/application, 16-bit real mode, for i386+, FAT 12/16; no TSRs, library of routines to program into apps, minimal kernel support (minimize interrupts), written in NASM assembly and Sphnix C--.
scottie.20m.com
- DS-OS - Good way to learn OS programming: balanced amount of functionality for learning: not too much to overwhelm beginners, yet some advanced features; done in pure 8086 Assembly via A86 assembler, incompatible with all other OSs. [Open Source]
www.mindspring.com/~dpsicilia
- EduOS - Operating system for the IA-32 (80386+) processors. For education purposes only, includes full source code, under active development. Needs Linux or BeOS to be compiled. [Open Source]
inf4serv.rug.ac.be/~fcorneli/eduos
- KoNK/OS - One author, experimental, multitasking, multithreaded, microkernel OS, being used to learn concepts of OS design. Includes Programmer's Manual.
www.konkers.net/~konkers/konkos
- KOS - Kid Operating System. Modular (run-time dynamic linking), preemptive multitasking, to have SVR4-like VM. Begun 1998 by young programmers, most of them students. Goal: not obtaining OS, but learning OS internals and functioning of x86 processors. Downloads, links, documentation. [Open Source, GPL]
kos.enix.org
- LeeOS - Simple command-line OS written in x86 assembly, designed as a learning tool for college students and amateur programmers. Download available. [Open Source]
24.31.144.26
- NACHOS - Not Another Completely Heuristic Operating System: teaching OS elegantly written in a subset of C++, developed at UC Berkeley for use in the OS and Systems Programming class. Now used at universities worldwide.
www.cs.berkeley.edu/~tea/nachos
- RCOS - Ron Chernich's OS: computer learning tool animates operation of multi-tasking OS; true OS, runs programs; object-oriented, message passing kernel lets parts be replaced easily, C++ coded, portable, runs on DOS, RCOSjava precursor.
cq-pan.cqu.edu.au/david-jones/Projects/rcos
- ShawnOS - Sure as Hell Ain't Windows Ninety five, the corner cutting OS due to the original schedule. Always intended more as a learning experience for author and others than as a practical, useful OS. Everything done as simply as possible. [Open Source, GPL]
www.overwhelmed.org/shawn
- SunriseOS - Tiny operating system written in Assembly, via NASM, by ICT student. Meant for only fun and learning. [Open Source]
www.geocities.com/sunriseos
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