🚀 go-pugleaf

I (very) recently wrote:

GB> So, BSD must be a standard that can be layered on top of different  
GB> operating systems (e.g. NT, SunOS, and Mach).

EE> This is where I think your terminology is off;
EE>   SunOS _IS_ the Kernel/OS.
EE>   BSD _IS_ a Kernel -&- OS.
EE>   (NT is _NOT_ an OS ;-).  
EE>   NeXTOS is a Mach (a micro/mini-kernel) which runs a(some) process(es) that
EE>   looks like BSD

Some quick back-pedaling is in order here:

I have been informed that I'm also a bit off.  Apparently NeXTOS is built
atop a particular revision of Mach (2.[23]) and is not really a micro-kernel
OS.

At least in this regard, it is very similar to SunOS.  (Thank goodness it's
not similar in some other aspects ;-)

I took my (limited) knowledge about what Mach claims to be and the fact that
NeXTOS is built upon Mach - the unfortunate discrepancy in Mach's history
caused the problem.

Now, I didn't claim to be an OS/kernel guru, so I can get away with this
mistake, right? ;-)

Eric
--
Eric Engstrom, Honeywell Systems & Research Center, Mpls, MN, USA
engstrom@src.honeywell.com  -or-  NeXTMail: eric%basilisk@src.honeywell.com
     < I eat from the four food groups: Barley, Hops, Yeast, Water. >