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Current BSD operating system variants support many of the common IEEE, ANSI, ISO, and POSIX standards, while retaining most of the traditional BSD behavior. Like AT&T Unix, the BSD kernel is monolithic, meaning that device drivers in the kernel run in privileged mode, as part of the core of the operating system.
CRUX is a Linux distribution mainly targeted at expert computer users. It uses BSD-style initscripts and utilizes a ports system similar to a BSD-based operating system. Chimera Linux: Chimera Linux is a Linux distribution created by Daniel Kolesa, a semi-active contributor to Void Linux. It uses a userland and core utilities based on FreeBSD.
FreeBSD is a free-software Unix-like operating system descended from the Berkeley Software Distribution (BSD). The first version was released in 1993 developed from 386BSD [3] —the first fully functional and free Unix clone—and has since continuously been the most commonly used BSD-derived operating system.
StarBSD – is a Unix-like, server-oriented operating system based on FreeBSD for Mission-Critical Enterprise Environment. TrueOS (previously PC-BSD) – a FreeBSD based server operating system, previously a desktop operating system. The project was officially discontinued in May 2020. [7]
Unix-like: 4.4 elks: FreeBSD: BSD; GPL, LGPL software usually included Monolithic with modules C 1:1 BSD, Unix-like 11 DragonFly BSD OpenBSD: BSD Monolithic C 1:1 BSD, Unix-like 6.4 MirOS: NetBSD: BSD Monolithic with modules C 1:1 BSD, Unix-like 7.0 OpenBSD DragonFly BSD: BSD Hybrid: C 1:1 BSD, Unix-like No OpenSolaris, illumos: CDDL ...
A selection of significant Unix versions and Unix-like operating systems that descend from BSD includes: FreeBSD, an open source general purpose operating system. Orbis OS, Sony's fork of FreeBSD 9 is the operating system for the PS4. CellOS for the PS3 system is believed to also be a FreeBSD fork, and is known to contain FreeBSD and NetBSD code
NetBSD provides system call-level binary compatibility on the appropriate processor architectures with its previous releases, but also with several other UNIX-derived and UNIX-like operating systems, including Linux, and other 4.3BSD derivatives like SunOS 4. This allows NetBSD users to run many applications that are only distributed in binary ...
After the release of Version 10, the Unix research team at Bell Labs turned its focus to Plan 9 from Bell Labs, a distinct operating system that was first released to the public in 1993. All versions of BSD from its inception up to 4.3BSD-Reno are based on Research Unix, with versions starting with 4.4 BSD and Net/2 instead becoming Unix-like.