History Question

[Sean]

There are two different major types of Unix. One is BSD and its variants
and the other is SCO. There is a trademark on the name UNIX and it has
been owned by a few people. The key thing to remember is that is costs
$$$$ to be a unix certified. There is something called POSIX compliance
which basically is supposed to unite the various unix's out there. 

Linux is supposedly a BSD derative has nothing to do with the kernels as
much as how it handles daemons, spooling, etc.Anyone that made the jump 
between Sun's move from BSD (sunos 5) to SCO (solaris 6-8) based unix
could probably tell you a bit more about the differences between the two
variants of Unix. 

BSD in fact used borrowed code from the unix sources up until the 4.4
release. Linux has "borrowed" a lot of daemons, and programs like LPD from
BSD, which makes it more BSD-like in the behavior and the layout of the
system. It also has borrowed stuff from SCO systems too but not as much...
The fact that its not one or the other makes it a Mutt. 

There are other kind of Unix's just about every major computer
manufacturer has one. IBM, HP, DEC, Apple, SGI, etc. But typically they
are either SCO, or BSD variants. IBM's AIX might be the exception where
they tried to be both BSD and SCO. 





 On Thu, 3 Aug 2000, Edward Glowacki wrote:

> On Thu, 3 Aug 2000, Tim Schmidt wrote:
> > Yes, This is what I've read countless times...  that Linux was built from 
> > the ground up (of course, starting from the home-brew kernel of Linus) and 
> > at most borrowed some misc code from Minix for a couple of months while 
> > Linus hacked out his own.  That's why I was wondering where this supposed 
> > "core of Linux came from BSD" stance came from...
> 
> Hmm, maybe the author pulled it out of his %@@?
> 
> -- 
> Edward Glowacki			glowack2@msu.edu
> Network Services		
> Michigan State University	
> 
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