Open Source C Education Software for BSD

os-tutorial is an open source educational project by cfenollosa that teaches the basics of building an operating system from scratch. The repository provides step-by-step lessons starting with bootloaders and moving through kernel development, interrupts, memory management, and system calls. Each tutorial is accompanied by clear explanations, code examples, and references to deepen understanding. The project uses x86 assembly and C to illustrate concepts, making it accessible to students and hobbyists interested in low-level programming. By compiling and running the examples with tools like QEMU, learners gain hands-on experience with OS fundamentals. With its structured lessons and approachable explanations, the repository has become a widely recommended resource for operating system beginners.

This project provides a step-by-step educational guide on building a simple operating system kernel entirely from scratch, specifically targeting the Raspberry Pi 3. The operating system, referred to as RPi OS, is inspired by the Linux kernel but remains intentionally minimal to focus on clarity and teaching fundamental OS concepts. Each lesson introduces a kernel feature and demonstrates its implementation within RPi OS, followed by a comparison to how the same concept is realized in the Linux kernel. The repository is structured so that every lesson corresponds to a snapshot of the source code at that stage, making it easier for learners to follow the progression of kernel development. The design of the lessons emphasizes gradual learning, allowing readers without prior OS development experience to understand kernel internals. The project is still under active development and encourages community contributions to expand its lessons and improve its content.

Linux/UNIX assembly programming portal.

MPS and µMPS are general-purpose computer system simulators based on MIPS R3000 processor. Both feature a X Window user interface, documentation, and a development kit. They have been successfully ported on several platforms.

GeekOS is an tiny operating system kernel which runs on bare x86 PC hardware

Common Hardware Recovery Solutions by Ukrainian-Russian network

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

This project aims to create small utilities for users to use and ease-up their daily lives. This includes a portable file-spliter, cd tray ejector, hex-dumper, etc

CleanOS is an operating system developed for educational purposes, initially to be an userspace GNU/Linux application running its executables and simulating the operating system task scheduler and IPC mechanisms. Now it supports a true i386 kernel.

"DSO" is a Digital Signal Oscilloscope. My DSO will be connected via the USB to the PC. All software to operate the DSO is developed within this project.

A simple operating system made for educational purposes. It will be a 32 bit multitasking open source operating system. Latest release covers interrupt handling, device drivers and shell service.

EduOS is a GPL'ed, educational Operating System. Unlike most OSes currently in dev (i.e. Linux, Solaris, Unix, MacOSX) EduOS is desigend to be a educational resource for programmers new and interested in OS development. It's not designed for the end-us

GDM-OSI V.G.A. is a project to develop a V oltametric G lass A nalizer. It was started with a consortium between the GDM Labs and the Otto Schott Institut fur Glasschemie. Soon we intend to apply these work and technics in the industries. All the devel

Linux TiTan is yet another Linux Distribution that is divided into 3 parts , the main system including packages compiled by us , a security system and a desktop environment developed using java . Goal : Security , Speed , Portability

It is a minimal linux like kernel for x86 architecture. It is mostly the source code from the tutorial "Roll your own toy UNIX-clone OS" written by James Molloy: http://www.jamesmolloy.co.uk/tutorial_html/index.html It is encoded in a bash script.

MuOS is a Operating System for x86-compatible hardware.

OpenPoplog is a multi-language, incrementally-compiled virtual machine-based development environment with its own extensive teaching and support material, supporting the languages Pop-11, Prolog, Common Lisp and ML on Unix, VMS, Linux and Windows.

This is the worlds first and probably only FLOSS project aimed to create a lowbudget, based on availble technology, cruise missile. No this is not a Joke, its for real. Why? Since no one has tried to do this before and certainly not under the GPL.

Graphical OS Kernel compiled with gcc 4.6.1 and nasm 2.09.08

TizOz OS is an operating system thought to learn how to develop operating systems. Coded in C its main objective is to reamin simple tough having a lot of capabilities.

The is the location for the ongoing unmanned systems projects at UWF.                         Visit the forums at: https://sourceforge.net/apps/phpbb/unmanned/

libNT is a Number Theory Library which is based on a BigInteger Class. It will contain several algorithms for solving Number Theory Problems. Written in the IDE Code::Blocks

Matho is a OS Independant Application and API for mathematical operations, features include curve sketching, calculus, iterative formulae, algebra solver, 2d/3d geometry and mechanical and statistical functionality.