Booting an IBM MP 3000 S/390 System

geneb geneb at
Thu Aug 6 09:10:12 CDT 2015

On Thu, 6 Aug 2015, Jay West wrote:

> Gene wrote...
> -----
> One thing I don't understand - why can't the machine boot on its own?  Why
> would IBM design a computer that required another computer just to boot it?
> ----
> To report higher sales of OS2/Warp? ;)
I'll rate that as "Midly Plausible". :)

> Not the only one though, ISTR the 11/780 used a 11/03 to boot?
I guess I just don't understand WHY.  Wouldn't it be more economical (both 
from a manufacturing and sales standpoint) to design a mini or mainframe 
that could boot with nothing more than a dumb terminal as a system 


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