DragonFly is an operating system and environment originally based on FreeBSD. DragonFly branched from FreeBSD in 2003 in order to develop a radically different approach to concurrency, SMP, and most other kernel subsystems.

The OpenBSD project produces a FREE, multi-platform 4.4BSD-based UNIX-like operating system. Our efforts emphasize portability, standardization, correctness, proactive security and integrated cryptography.

Il Polygen è un programma che genera frasi casuali secondo una definizione grammaticale, ovvero seguendo un corpus programmabile di regole sintattiche e lessicali.

FreeDOS aims to be a complete, free, 100% MS-DOS compatible operating system.

Caml is a general-purpose programming language, designed with program safety and reliability in mind. It is very expressive, yet easy to learn and use. Caml supports functional, imperative, and object-oriented programming styles.

Haiku is an open-source operating system currently in development designed from the ground up for desktop computing. Inspired by the BeOS, Haiku aims to provide users of all levels with a personal computing experience that is simple yet powerful, and (...)

Contiki is an open source, highly portable, multi-tasking operating system for memory-constrained networked embedded systems.

The Internet's premier source of information regarding the Commodore Amiga computer. Get technical support, talk to fellow Amiga enthusiasts, get the latest news and rumors.

MINIX 3 is a new open-source operating system designed to be highly reliable, flexible, and secure.

Plan 9 from Bell Labs is a research system developed at Bell Labs starting in the late 1980s.