Unix Operating System Basics

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...

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...

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

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

CUPS provides a portable printing layer for Unix(r)-based operating systems. Common UNIX Printing System has been developed to promote a standard printing solution for all Unix vendors and users. CUPS provides the System V and Berkeley command line interfaces, and uses the Internet Printing...


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

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

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

UNIX billing system, for network servers, voip, etc.


Platforms: Mac, BSD, Linux

FreeBSD is an advanced BSD UNIX operating system for PC-compatible computers. FreeBSD offers advanced networking, performance, security and compatibility features today which are still missing in other operating systems, even some of the best commercial ones. FreeBSD makes an ideal Internet or...


Platforms: FreeBSD

This project aims to port ExTeX, a high quality typesetting system developed for UNIX operating system to Macintosh OS X using Fink, a package management system.


Platforms: Mac, BSD

PyKota is a complete GPLed Print Quota and Accounting Software Solution for the Common UNIX Printing System (aka CUPS) on GNU/Linux and Unix-like operating systems, which offers a great flexibility with regard to the page accounting methods it supports. Older releases of PyKota Print Quota...


Platforms: *nix

PC-BSD distribution has as its goals to be an easy-to-install-and-use desktop operating system, based on FreeBSD. To accomplish this, it currently has a graphical installation, which will enable even UNIX novices to easily install and get it running. It will also come with KDE pre-built, so...


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

Babel Enterprise is an audit tool, focused on evaluating Operating System base security. Babel Enterprise evaluate the security level, or hardening, from a wide range of Operating Systems. Babel Enterprise run several audit probes and checks to give a photograph of the current system security...


Platforms: *nix

RTEMS (Real-Time Executive for Multiprocessor Systems) is a commercial grade real-time operating system designed for deeply embedded systems. The project is a free (as in beer and speech) open-source solution that supports multi-processor systems. RTEMS is designed to support applications with...


Platforms: *nix

MINIX 3 is a new open-source operating system designed to be highly reliable and secure. This project is based somewhat on previous versions of MINIX, but is fundamentally different in many key ways. MINIX 1 and 2 were intended as teaching tools; MINIX 3 adds the new goal of being usable as a...


Platforms: *nix

Buenos is a small SMP operating system skeleton which can be used as a base for operating systems project courses. Buenos runs in a machine simulator called YAMS, which is also available here. Buenos project is intended to be used as OS project base code which students can improve. Extensive...


Platforms: *nix