
Unix-like Systems
FreeBSD Inc.
FreeBSD is an advanced BSD UNIX operating system for PC-compatible; computers.
Minix, the book
The classic book on Operating systems design and implementation by Andrew Tanenbaum. This text introduced Minix to the world.
Minix info sheet
Minix is a free Uinix clone that is available with all the source code. Due to its small size, microkernel-based design, and ample documentation, it is well suited to people who want to run a Unix-like system on their personal computer and learn about how such systems work inside. It is quite feasible for a person unfamiliar with operating system intern ...
NetBSD Project
The NetBSD Project is the collective volunteer effort of a large group of people, to produce a freely available and redistributable UNIX-like operating system, NetBSD. NetBSD is based on a variety of free software, including 4.4BSD Lite from the University of California, Berkeley. It runs on a large number of hardware platforms and is highly portable. I ...
OpenBSD
The OpenBSD project involves continuing development of a free multi-platform 4.4BSD-based Unix-like operating system.
The Calypso Project
Research in resource management in metacomputing environments for reliable high-performance computing. Current focus is on fault-tolerant and load-balanced parallel computing on COTS networks of COTS computers running COTS systems software At the core of the experimental platform lies an integrated set of simple techniques developed in previous foundati ...
The Choices Operating System
Choices is written as an object-oriented operating system in an object-oriented programming language C++. As an object-oriented operating system, its architecture is organized into frameworks of objects that are hierarchically classified by function and performance. The operating system is customized by replacing subframeworks and objects. The applicati ...
