List of BSD operating systems - Wikipedia
Since the early 2000s, there are four major BSD operating systems– FreeBSD, NetBSD, OpenBSD and DragonFly BSD, and an increasing number of other OSs forked from these, that add or remove certain features; however, most of them remain largely compatible with their originating OS—and so are not really forks of them.
The FreeBSD Project
FreeBSD is an operating system used to power modern servers, desktops, and embedded platforms. A large community has continually developed it for more than thirty years.
The 7 Best BSD-Based Operating Systems of All Time - MUO
2022年1月4日 · BSD systems won over users with their powerful kernel, functional system software ecosystem, and permissive licensing (best solution for advanced engineering workstations). Each of these operating systems is the best within the current generation of open-source Unix-inspired OSes.
Berkeley Software Distribution - Wikipedia
The Berkeley Software Distribution or Berkeley Standard Distribution [1] (BSD) is a discontinued operating system based on Research Unix, developed and distributed by the Computer Systems Research Group (CSRG) at the University of California, Berkeley.
Comparison of BSD operating systems - Wikipedia
Most of the current BSD operating systems are open source and available for download, free of charge, under the BSD License. They also generally use a monolithic kernel architecture, apart from DragonFly BSD which feature hybrid kernels.
OpenBSD
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.
www.bsd.org
This page is intended to provide a variety of resources for users of the various commercial and freely-available bsd operating systems. It is in the midst of being revamped, and will probably be in such a state for quite a while yet.