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Topic: Berkeley Software Distribution


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BSD
XNU

In the News (Sun 16 Jun 19)

  
  Berkeley Software Distribution - Wikipedia
Berkeley Software Distribution (BSD) is the name of the UNIX dialects distributed already in the 1970s from the University of California, Berkeley.
Berkeley used their software as a research base for a variety of investigations into operating system design throughout the 1970s and 1980s.
Eventually the sum total of the systems that Berkeley students had developed from scratch for their research had replaced essentially every component of the original UNIX kernel, and in the early 1990s the full Berkeley source code was released publicly with a very generous license called the BSD License.
wikipedia.findthelinks.com /bs/BSD.html   (263 words)

  
 Berkeley Software Distribution
Berkeley Software Distribution (BSD) is the name of the UNIX derivative distributed in the 1970s from the University of California, Berkeley.
Eventually, the systems that Berkeley students had developed for their research had replaced almost every component of the AT&T UNIX system, and in the early 1990s the full Berkeley source code was released publicly under the BSD License.
Like AT&T Unix, the BSD kernel is a monolithic kernel, meaning that device drivers in the kernel run in ring 0, the core of the operating system.
guajara.com /wiki/en/wikipedia/b/be/berkeley_software_distribution.html   (446 words)

  
 TriBUG: Overview of BSD
BSD, or Berkeley Software Distribution, began in 1977 from the efforts of the Computer Systems Research Group (CSRG) of the University of California at Berkeley.
Organizationally, BSD, in all its forms past and present, has been and is driven by a set of design goals established by a team of core individuals and with those design goals kept in mind while striving for improvement.
BSD also continues to evolve, most recently with SMP development, the soft-updates implementation in FFS, and Kirk McKusick's development of UFS2, which has now been integrated into at least the current branches of most of the BSDs.
www.tribug.org /bsd.html   (2187 words)

  
 BSD license - Psychology Central   (Site not responding. Last check: 2007-10-22)
The BSD license is an acronym for the Berkeley Software Distribution license agreement, and is one of the most widely used licenses for free software (a subset of open source software).
The owner of the original BSD distribution was the "Regents of the University of California".
This '4-clause' advertising version was removed from the official BSD license text on July 22, 1999 by William Hoskins, the director of the office of technology licensing for Berkeley, in response to a request from Richard Stallman.
psychcentral.com /psypsych/BSD_license   (1452 words)

  
 Salon Free Software Project | BSD Unix: Power to the people, from the code   (Site not responding. Last check: 2007-10-22)
Berkeley Unix worked so well that DARPA* chose it to be the preferred "universal computing environment" linking together Arpanet* research nodes, thus setting in place an essential piece of infrastructure for the later growth of the Internet.
And if those hackers sent their modifications to Berkeley, and they were deemed good enough, they became part of a code base maintained by programmers who wanted nothing more than for their software to be widely used, for as low a cost as possible.
Berkeley Unix has morphed through multiple phase shifts since its inception some 20 years ago, from the Joy-dominated era of the late '70s and early '80s to the more collaborative period that began after Joy's departure to Sun in 1982.
salon.com /tech/fsp/2000/05/16/chapter_2_part_one   (1046 words)

  
 Berkeley Software Distribution - Psychology Central   (Site not responding. Last check: 2007-10-22)
While BSD itself was largely superseded by the System V Release 4.x and OSF/1 systems in the 1990s, in recent years modified open source versions of the codebase have seen increasing use and development.
Net/2 was the basis for two separate ports of BSD to the Intel 80386 architecture: the free 386BSD by William Jolitz and the proprietary BSD/386 (later renamed BSD/OS) by Berkeley Software Design (BSDi).
Today, BSD continues to be used as a testbed for technology by academic organizations, as well as finding uses in a lot of commercial and free products and, increasingly, in embedded devices.
psychcentral.com /psypsych/BSD   (2306 words)

  
 [No title]
The distribution fee for this license and delivery of one physical copy of 4.2 is seven hundred fifty dollars ($750.00).
AT&T may obtain additional copies of 4.2 BSD and 4.3 BSD and new releases of 4 BSD which the University may choose to make available under the terms of this Agreement by paying an additional distribution fee determined by the University.
Distribution fees do not include local, state or federal taxes, and AT&T hereby agrees to pay all such taxes as may be imposed upon AT&T or the University with respect to the distribution, possession, use, or sublicensing of 4 BSD pursuant to this Agreement.
cm.bell-labs.com /cm/cs/who/dmr/bsdi/BSD_ATT_License.txt   (1033 words)

  
 BSD - Berkeley Software Distribution
BSD is usually preceded by the version number of the distribution, e.g., 4.3 BSD is version 4.3 of the Berkeley UNIX distribution.
The BSD portion of Darwin is based on 4.4BSD Lite 2 and FreeBSD, a flavor of 4.4BSD.
Free BSD is distributed in both executable and source code form.
www.auditmypc.com /acronym/BSD.asp   (640 words)

  
 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.
**BSD is a registered trademark of UUnet Technologies, Inc.
www.bsd.org   (259 words)

  
 BSD Dates Back to Late '70s / Users encouraged to tinker with it, do improvements
In contrast, the Berkeley license gives developers who build enhanced products on an open-source base a choice: They can release the code behind their innovations to the community, but they also can keep such modifications to themselves, in the form of closed, proprietary products.
The whole BSD movement faced a life-threatening legal challenge in the early 1990s, when AT&T sued BSDI and then the University of California, demanding that both stop distributing their operating systems on the grounds that they violated AT&T copyrights on Unix.
The BSD developers were required to make only minor changes, including replacing three files out of a total of roughly 18,000 in their releases.
www.sfgate.com /cgi-bin/article.cgi?file=/chronicle/archive/2000/05/29/BU96113.DTL&type=business   (672 words)

  
 Open Sources: Voices from the Open Source Revolution
For the Macsyma group at Berkeley, the lack of virtual memory meant that the process address space was limited by the size of the physical memory, initially 1 megabyte on the new VAX.
That was because the BSD systems were never released by Berkeley in a binary-only format; the distributions always contained the complete source to every part of the system.
While this reintegration caused a short-term delay in the development of the various BSD systems, it was a blessing in disguise since it forced all the divergent groups to resynchronize with the three years of development that had occurred at the CSRG since the release of Networking Release 2.
www.oreilly.com /catalog/opensources/book/kirkmck.html   (7058 words)

  
 Software Magazine: Unix pioneer ends BSD research; UCal Berkeley blames lawsuit by USL - Berkeley Software Design; Unix ...
Berkeley's involvement with the operating system began in January 1974, when engineers developed an implementation of Version 4 Unix from AT&T's Bell Labs for the 16-bit PDP-11/45 minicomputer from Digital Equipment Corp., Maynard, Mass.
In the summer of 1976, Berkeley graduate student Bill Joy analyzed the internal workings of the Unix kernel and developed the first "Berkeley Software Distribution" (BSD) implementation in 1977.
When Berkeley installed a 32-bit DEC VAX-11/780 system in early 1978 and Bell Labs furnished the university with a copy of their 32/V port of Unix to the VAX, Joy ported the second version of BSD software to the VAX.
www.findarticles.com /p/articles/mi_m0SMG/is_n14_v12/ai_12737915   (1539 words)

  
 ALA | 2101 Bretthauer
There is usually a separate discussion list for users of the software, who often are not very technically oriented and who do not normally contribute to the source code but who can report problems and ask for help, both from other users and any developers or maintainers who monitor that list.
Traditionally, software is made available either by its author releasing it into the public domain or by closing the source code and using copyright and licensing terms to protect it so it cannot be modified.
BSD was shared with research universities around the world, provided they first purchased a source license from ATandT and with that obtained the full source code for both Bell Labs UNIX and BSD.
www.ala.org /ala/lita/litapublications/ital/2101bretthauer.htm   (6497 words)

  
 BSD India - What is BSD
It is the name of distributions of source code from the University of California, Berkeley, which were originally extensions to AT&T's Research UNIX operating system.
The BSD operating systems are not clones, but open source derivatives of AT&T's Research UNIX operating system, which is also the ancestor of the modern UNIX System V. This may surprise you.
Initial BSD releases consisted mainly of user programs, but that changed dramatically when the CSRG landed a contract with the Defense Advanced Projects Research Agency (DARPA) to upgrade the communications protocols on their network, ARPANET.
www.bsd-india.org /bsd.html   (1587 words)

  
 The 4.4BSD Copyright
All of the documentation and software included in the 4.4BSD and 4.4BSD-Lite Releases is copyrighted by The Regents of the University of California.
The views and conclusions contained in the software and documentation are those of the authors and should not be interpreted as representing official policies, either expressed or implied, of the Regents of the University of California.
As you know, certain of the Berkeley Software Distribution ("BSD") source code files require that further distributions of products containing all or portions of the software, acknowledge within their advertising materials that such products contain software developed by UC Berkeley and its contributors.
www.freebsd.org /copyright/license.html   (472 words)

  
 Opera Press Release: The Daemon of the Opera
Opera Software is proud to announce the first golden release of its new port to the UNIX variant FreeBSD.
Berkeley Software Distribution operating system technologies were originally developed from 1979 to 1992 by the Computer Systems Research Group (CSRG) at the University of California at Berkeley.
BSD operating system technologies are used by leading mission-critical network computing environments and are embedded in Internet appliance platforms that require advanced Internet functionality, reliability and security.
www.opera.com /pressreleases/en/2002/10/31/b   (553 words)

  
 Information Security Magazine   (Site not responding. Last check: 2007-10-22)
The other BSD projects are endeavors where an individual or small group of project leaders coordinate activities and evaluate proposed changes and improvements to the BSD code.
It's far simpler to secure a distribution with a well-defined set of utilities and servers than it is to secure many distributions that contain many different programs, as must be done with Linux.
University of California at Berkeley researchers, including Unix co-creator Bill Thompson and Sun Microsystems co-founder Bill Joy, made improvements to the ATandT code, which led to the 1979 release of the first BSD distribution.
infosecuritymag.techtarget.com /articles/may01/features_os_security.shtml   (1609 words)

  
 BSD License Problem - GNU Project - Free Software Foundation (FSF)
We recommend copyleft, because it protects freedom for all users, but non-copylefted software can still be free software, and useful to the free software community.
There are many variants of simple non-copyleft free software licenses, including the X10 license, the X11 license, the FreeBSD license, and the two BSD (Berkeley Software Distribution) licenses.
You see, when people refer to all non-copyleft free software licenses as ``BSD-style licenses'', some new free software developer who wants to use a non-copyleft free software license might take for granted that the place to get it is from BSD.
www.gnu.org /philosophy/bsd.html   (904 words)

  
 Open Source Initiative OSI - The BSD License:Licensing
Note: The advertising clause in the license appearing on BSD Unix files was officially rescinded by the Director of the Office of Technology Licensing of the University of California on July 22 1999.
Note the new BSD license is thus equivalent to the
In the original BSD license, both occurrences of the phrase "COPYRIGHT HOLDERS AND CONTRIBUTORS" in the disclaimer read "REGENTS AND CONTRIBUTORS".
www.opensource.org /licenses/bsd-license.php   (331 words)

  
 Salon 21st | You've got sendmail
Certainly, Allman had no idea that his program might one day be singled out as a prime example of the "open-source" strategy of software development, nor did he imagine that he would be lauded as one of the pioneers of the free software movement.
But Allman's creation, and later distribution, of sendmail did fit in naturally with the glorious hacking tradition of the computer science department at Berkeley -- where mucking around with the innards of the Unix operating system was long considered, if not a God-given right, then at the very least a cherished responsibility.
And that Berkeley tradition is a key wellspring for what has since become known as the free software or open-source movement -- which is stirring up today's computing world with a new vision of how great software can be developed, distributed and supported.
archive.salon.com /21st/feature/1998/12/cov_11feature.html   (758 words)

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