BSD is the abbreviation of Berkeley Software Distribution, which was originally used to publish a UNIX system (Berkeley Unix) developed by Berkeley University's Computer Systems Research Group (CSRG). The BSD system that later appeared was derived from Berkeley UNIX. Now the main BSD system has the following: 386 / BSD386 / BSD is the initial BSD operating system, which was developed by William F. Jolitz on the basis of 4.3BSD in 1992. It is mainly running on 386PC architecture. Its distribution is mainly done on the network, and anyone can freely download from the web. 386 / BSD has not progressed in a certain stage, and there is no progress: in the case of, two operating systems, NetBSD, and FreeBSD have been introduced. Now, everyone thinks that 386 / BSD is dead. NetBSD released a few months in the 386 / BSD version, a group of keenly portable users set up a group to help maintain and enhance the later systems. They named their version NetBSD. NetBSD focuses on supporting as many platforms as possible and continues to develop according to CSRG style. NetBSD is now able to support nearly 70 platforms including from Algor to VAX. You can go see NetBSD's official website http://www.netbsd.org to learn more. FreeBSD has been established in the NetBSD team, and the FreeBSD team has also been established, focusing on the PC architecture, its purpose is to develop a rock-solid network operating system. It is directly derived from 386BSD and 4.4BSD-LITE. Later, the FreeBSD team found the Walnut Creek CDROM publisher, which was sent to the FreeBSD CD, and Walnut Creek also provided computer and fast Internet access required to develop FreeBSD's scheme. It should be said that the development of FreeBSD is inseparable from Walnut Creek support. FreeBSD has now been quite mature. Its technical performance is also quite well. For more than ten years, it has made it a "solid rock" network operating system, and many big websites and ISP are running freebsd. Free and open features make it an excellent platform for commercial computing and scientific research. Now, FreeBSD has also supported the Alpha and SPARC64 platforms, but there is still a long way to go compared to the PC platform. Since the excellent performance of FreeBSD and the BSD license agreement, many international companies have developed it secondary, so that it can be applied to a proprietary system. Like only second larger router manufacturers next to Cisco, its Junos system is freeBSD-based system, of course, Juniper's router is a dedicated network processing chip. There are nokia, samsung, etc. in firewalls, they are systems using FreeBSD 2.2.x. And Maxtor, AMI and other manufacturers are also using FreeBSD in their storage systems. In addition, IBM's InterJet is also using FreeBSD. Other uncommon manufacturers, using FreeBSD is more than. It can be seen that FreeBSD is the most excellent and wide range of BSD systems. FreeBSD's official website is www.freebsd.org. BSD / OSBSD / OS is also a very excellent operating system. It is the product of BSDI (Berkeley Software Design Inc.), part of BSD UNIX. It is similar to FreeBSD, but more hardware is supported more than FreeBSD, with good service and technical support.
BSDI has been acquired by WinDriver. OpenBSDopenbsd is separated from NetBSD, which is dedicated to NetBSD with FreeBSD, and is a mixed blood of NetBSD and FreeBSD. Their technical tenet is to improve system security and is considered to be the current world's safest operating system, which has no record of nearly four years without remote access vulnerabilities. Their market goal is to make the system easier to use and be more widely used, so they borrow a lot of features that freeBSD releases easily installed. You can find more information at http://www.openbsd.org. Darwin (MacOS X) Apple released his tenth edition of his MacOS earlier in 2001. It deviates from the previous MacOS version: It is built on the MACH micro-core base system with a BSD environment, plus Apple's own AQUA graphical interface. The basic system (DARWIN) is also free. FreeBSD and Darwin are compatible at the user source code level. Moreover, Apple also hires a large Jordan Hubbard, a FreeBSD community, one of the founders of the FreeBSD program. Recently, Apple also established its own Darwin community, hoping to attract more people to join its community. It can be seen that all BSD system branches have a common origin, so they are a little fake. In fact, it is also constantly speaking, and progress together. __________________
