Ice,
The sun3x distribution is for the Sun3 Series of Sun workstations.  These
had the motorola 68XXX cpu's in them.  The sparc port is for the Sun4 arch
this includes the Sun4c, Sun4m, Sun4u(yet?), etc.. The Classic is a Sun4m
machine so you would want to use the sparc port.  As far as the
differences between NetBSD and OpenBSD ill leave that one for the
NetBSD diehards to answer.  

          - Robert
On Mon, 5 Oct 1998, Ijsbrand Wijnands wrote:

> Hi,
> 
> I am in the process of installing NETBSD on a sparc classic. I see
> there are 2 distributions, a sun3x and a sparc. Which of the 2 should
> I take?
> 
> Maybe an other stupid questions, but what is the difference between
> OpenBSD and NetBSD?
> 
> Thanks for you help...
> 
> 
> Ice.
>