Cisco Cisco StadiumVision Director Informazioni sulle licenze

   
  The licenses for most software and other practical works are designed   
to take away your freedom to share and change the works.  By contrast,   
the GNU General Public License is intended to guarantee your freedom to   
share and change all versions of a program--to make sure it remains free   
software for all its users.  We, the Free Software Foundation, use the   
GNU General Public License for most of our software; it applies also to   
any other work released this way by its authors.  You can apply it to   
your programs, too.   
   
  When we speak of free software, we are referring to freedom, not   
price.  Our General Public Licenses are designed to make sure that you   
have the freedom to distribute copies of free software (and charge for   
them if you wish), that you receive source code or can get it if you   
want it, that you can change the software or use pieces of it in new   
free programs, and that you know you can do these things.   
   
  To protect your rights, we need to prevent others from denying you   
these rights or asking you to surrender the rights.  Therefore, you have   
certain responsibilities if you distribute copies of the software, or if   
you modify it: responsibilities to respect the freedom of others.   
   
  For example, if you distribute copies of such a program, whether   
gratis or for a fee, you must pass on to the recipients the same   
freedoms that you received.  You must make sure that they, too, receive   
or can get the source code.  And you must show them these terms so they   
know their rights.   
   
  Developers that use the GNU GPL protect your rights with two steps:   
(1) assert copyright on the software, and (2) offer you this License   
giving you legal permission to copy, distribute and/or modify it.   
   
  For the developers' and authors' protection, the GPL clearly explains   
that there is no warranty for this free software.  For both users' and   
authors' sake, the GPL requires that modified versions be marked as   
changed, so that their problems will not be attributed erroneously to   
authors of previous versions.   
   
  Some devices are designed to deny users access to install or run   
modified versions of the software inside them, although the manufacturer   
can do so.  This is fundamentally incompatible with the aim of   
protecting users' freedom to change the software.  The systematic   
pattern of such abuse occurs in the area of products for individuals to   
use, which is precisely where it is most unacceptable.  Therefore, we   
have designed this version of the GPL to prohibit the practice for those   
products.  If such problems arise substantially in other domains, we   
stand ready to extend this provision to those domains in future versions   
of the GPL, as needed to protect the freedom of users.   
   
  Finally, every program is threatened constantly by software patents.   
States should not allow patents to restrict development and use of   
software on general-purpose computers, but in those that do, we wish to   
avoid the special danger that patents applied to a free program could   
make it effectively proprietary.  To prevent this, the GPL assures that   
patents cannot be used to render the program non-free.   
   
  The precise terms and conditions for copying, distribution and