Comparison of BSD operating systems | Wikipedia audio article
Channel: wikipedia tts
Date: 13/01/2019

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Comparison_of_BSD_operating_systems


00:02:14 1 Aims and philosophies
00:02:24 1.1 DragonFly BSD
00:03:35 1.2 FreeBSD
00:06:35 1.3 NetBSD
00:07:48 1.4 OpenBSD
00:11:44 2 Popularity
00:14:43 3 Names, logos, slogans
00:19:01 4 General information
00:19:10 5 See also
00:19:33 6 Notes and references
00:19:43 6.1 Other sources



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SUMMARY
=======
There are a number of Unix-like operating systems based on or descended from the Berkeley Software Distribution (BSD) series of Unix variant options. The three most notable descendants in current use are FreeBSD, OpenBSD, and NetBSD, which are all derived from 386BSD and 4.4BSD-Lite, by various routes. Both NetBSD and FreeBSD started life in 1993, initially derived from 386BSD, but in 1994 migrating to a 4.4BSD-Lite code base. OpenBSD was forked from NetBSD in 1995. Other notable derivatives include DragonFly BSD, which was forked from FreeBSD 4.8, and Apple Inc.'s iOS and macOS, with its Darwin base including a large amount of code derived from FreeBSD.
Most of the current BSD operating systems are open source and available for download, free of charge, under the BSD License, the most notable exceptions being macOS and iOS. They also generally use a monolithic kernel architecture, apart from macOS, iOS, and DragonFly BSD which feature hybrid kernels. The various open source BSD projects generally develop the kernel and userland programs and libraries together, the source code being managed using a single central source repository.
In the past, BSD was also used as a basis for several proprietary versions of UNIX, such as Sun's SunOS, Sequent's Dynix, NeXT's NeXTSTEP, DEC's Ultrix and OSF/1 AXP (which became the now discontinued Tru64 UNIX). Parts of NeXT's software became the foundation for macOS which, together with iOS, is among the most commercially successful BSD variants in the general market.