*.sgml:
- Use trademark entities - Add trademark attributions. - Always use correct case for trademarks. - Don't join trademarks with other words, e.g. using hyphens. trademark.ent: - Add entities for more trademarks / companies. - Sort the Sun trademark attribution entity.
This commit is contained in:
Simon L. B. Nielsen
parent
ada8f32521
commit
2993ccd69a
Notes:
svn2git
2020-12-08 03:00:23 +00:00
svn path=/head/; revision=18123
7 changed files with 158 additions and 82 deletions
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@ -6,6 +6,8 @@
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%man;
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<!ENTITY % freebsd PUBLIC "-//FreeBSD//ENTITIES DocBook Miscellaneous FreeBSD Entities//EN">
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%freebsd;
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<!ENTITY % trademarks PUBLIC "-//FreeBSD//ENTITIES DocBook Trademark Entities//EN">
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%trademarks;
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]>
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<article>
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@ -21,6 +23,16 @@
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</affiliation>
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</author>
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<legalnotice id="trademarks" role="trademarks">
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&tm-attrib.freebsd;
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&tm-attrib.apple;
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&tm-attrib.linux;
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&tm-attrib.opengroup;
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&tm-attrib.sun;
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&tm-attrib.xfree86;
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&tm-attrib.general;
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</legalnotice>
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<abstract>
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<para>In the open source world, the word <quote>Linux</quote> is almost
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synonymous with <quote>Operating System</quote>, but it is not the only
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@ -28,7 +40,7 @@
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to the <ulink
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url="http://www.leb.net/hzo/ioscount/data/r.9904.txt">Internet
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Operating System Counter</ulink>, as of April 1999 31.3% of the
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world's network connected machines run Linux. 14.6% run BSD UNIX.
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world's network connected machines run Linux. 14.6% run BSD &unix;.
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Some of the world's largest web operations, such as <ulink
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url="http://www.yahoo.com/">Yahoo!</ulink>, run BSD. The world's
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busiest FTP server, <ulink
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@ -86,7 +98,7 @@
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<para>The X Window system used in most versions of BSD is maintained
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by a separate project, the
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<ulink url="http://www.XFree86.org/">XFree86 project</ulink>.
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<ulink url="http://www.XFree86.org/">&xfree86; project</ulink>.
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This is the same code as Linux uses. BSD does not normally
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specify a <quote>graphical desktop</quote> such as GNOME or KDE,
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though these are available.</para>
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@ -99,16 +111,16 @@
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</sect1>
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<sect1>
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<title>What, a real UNIX?</title>
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<title>What, a real &unix;?</title>
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<para>The BSD operating systems are not clones, but open source
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derivatives of AT&T's Research UNIX operating system, which is also
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the ancestor of the modern UNIX System V. This may surprise you. How
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derivatives of AT&T's Research &unix; operating system, which is also
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the ancestor of the modern &unix; System V. This may surprise you. How
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could that happen when AT&T has never released its code as open
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source?</para>
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<para>It is true that AT&T UNIX is not open source, and in a copyright
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sense BSD is very definitely <emphasis>not</emphasis> UNIX, but on the
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<para>It is true that AT&T &unix; is not open source, and in a copyright
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sense BSD is very definitely <emphasis>not</emphasis> &unix;, but on the
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other hand, AT&T has imported sources from other projects,
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noticeably the Computer Sciences Research Group of the University of
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California in Berkeley, CA. Starting in 1976, the CSRG started
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@ -125,10 +137,10 @@
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1982.</para>
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<para>In the course of the 1980s, a number of new workstation companies
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sprang up. Many preferred to license UNIX rather than developing
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sprang up. Many preferred to license &unix; rather than developing
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operating systems for themselves. In particular, Sun Microsystems
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licensed UNIX and implemented a version of 4.2BSD, which they called
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SunOS. When AT&T themselves were allowed to sell UNIX commercially,
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licensed &unix; and implemented a version of 4.2BSD, which they called
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&sunos;. When AT&T themselves were allowed to sell &unix; commercially,
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they started with a somewhat bare-bones implementation called System
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III, to be quickly followed by System V. The System V code base did not
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include networking, so all implementations included additional software
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@ -138,7 +150,7 @@
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<emphasis>Berkeley Extensions</emphasis>.</para>
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<para>The BSD tapes contained AT&T source code and thus required a
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UNIX source license. By 1990, the CSRG's funding was running out, and
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&unix; source license. By 1990, the CSRG's funding was running out, and
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it faced closure. Some members of the group decided to release the BSD
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code, which was Open Source, without the AT&T proprietary code.
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This finally happened with the <emphasis>Networking Tape 2</emphasis>,
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@ -201,10 +213,10 @@
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that the court case had been <quote>recently settled</quote>.</para>
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<para>One detail that the lawsuit did clarify is the naming: in the
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1980s, BSD was known as <quote>BSD UNIX</quote>. With the
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1980s, BSD was known as <quote>BSD &unix;</quote>. With the
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elimination of the last vestige of AT&T code from BSD, it
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also lost the right to the name UNIX. Thus you will see
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references in book titles to <quote>the 4.3BSD UNIX operating
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also lost the right to the name &unix;. Thus you will see
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references in book titles to <quote>the 4.3BSD &unix; operating
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system</quote> and <quote>the 4.4BSD operating
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system</quote>.</para>
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</listitem>
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@ -225,7 +237,7 @@
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<para>So what is really the difference between, say, Debian Linux and
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FreeBSD? For the average user, the difference is surprisingly small:
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Both are UNIX-like operating systems. Both are developed by
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Both are &unix; like operating systems. Both are developed by
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non-commercial projects (this does not apply to many other Linux
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distributions, of course). In the following section, we will look at BSD
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and compare it to Linux. The description applies most closely to
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@ -425,8 +437,8 @@
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</listitem>
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</itemizedlist>
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<para>There are also two additional BSD operating systems which are not
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open source, BSD/OS and Apple's Mac OS X:</para>
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<para>There are also two additional BSD &unix; operating systems which are not
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open source, BSD/OS and Apple's &macos; X:</para>
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<itemizedlist>
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<listitem>
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@ -436,16 +448,16 @@
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</listitem>
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<listitem>
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<para><ulink url="http://www.apple.com/macosx/server/">Mac OS
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<para><ulink url="http://www.apple.com/macosx/server/">&macos;
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X</ulink> is the latest version of the operating system for
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<ulink url="http://www.apple.com/">Apple Computer Inc.'s</ulink>
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Macintosh line. The BSD Unix core of this operating
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&macintosh; line. The BSD core of this operating
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system, <ulink
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url="http://developer.apple.com/darwin/">Darwin</ulink>,
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is available as a fully functional open source operating
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system for x86 and PPC computers. The Aqua/Quartz
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graphics system and many other proprietary aspects of
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Mac OS X remain closed-source, however. Several Darwin
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&macos; X remain closed-source, however. Several Darwin
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developers are also FreeBSD committers, and
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vice-versa.</para>
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</listitem>
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