[FUG-BR] [OFF TOPIC - RESPEITOOOOOO!!!] GoogleOS

[Marcelo Costa]

Em Seg, 2005-09-19 Ã s 14:06 -0300, Marcelo Lima escreveu:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> Linux is a free Unix-type operating system originally created by Linus
> Torvalds with the assistance of developers around the world. Developed
> under the GNU General Public License , the source code for Linux is
> freely available to everyone. Click on the link below to find out more
> about the operating system that is causing a revolution in the world of
> computers.
> 
> fonte -> www.linux.org
> 
> - --
> Marcelo Lima
> Administrador de redes / Departamento de Redes e Tecnologia
> Email: lima em catho.com.br
> Fone: 31770700 r313
> Nextel: 55*5*7857
> ICQ: 235332632
> 
> - -----------------------------------------------------------------
> Catho Online: O seu sucesso é o nosso negocio!
> http://www.catho.com.br
> 
> FreeBSD is an operating system, not just a kernel. This statement does not mean quite as much as it used to, however, because the very notion of a kernel is fairly arbitrary. In a UNIX context, it means that users can't access certain libraries and executables after booting has finished. The kernel manages the hardware for applications, even though today many UNIX-type operating systems would give user-level threads a role in managing kernel resources. You can safely assume that anything users cannot access during run time is part of the kernel. This does not mean that users can't influence kernel behavior. Certain utilities can report and tune memory management, for instance, and they are definitely within the purview of the user. These utilities communicate through the system's API, which is not part of the kernel, although it is quite clearly part of the operating system. FreeBSD, of course, includes all these and many other utilities and applications that deal with the characteristics of networking and hardware.

What FreeBSD does and Linux doesn't

FreeBSD is an operating system, not just a kernel. This statement does
not mean quite as much as it used to, however, because the very notion
of a kernel is fairly arbitrary. In a UNIX context, it means that users
can't access certain libraries and executables after booting has
finished. The kernel manages the hardware for applications, even though
today many UNIX-type operating systems would give user-level threads a
role in managing kernel resources. You can safely assume that anything
users cannot access during run time is part of the kernel. This does not
mean that users can't influence kernel behavior. Certain utilities can
report and tune memory management, for instance, and they are definitely
within the purview of the user. These utilities communicate through the
system's API, which is not part of the kernel, although it is quite
clearly part of the operating system. FreeBSD, of course, includes all
these and many other utilities and applications that deal with the
characteristics of networking and hardware.


è o que uma empresinha ali da esquina diz ....

http://www-128.ibm.com/developerworks/library/os-freebsd/index.html?ca=drs

-- 
Marcello Soares da Costa
FreeBSD System Engineer
unixmafia em yahoo.com.br


	

	
		
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