On 12/19/2015 07:48 PM, Shmuel Metz (Seymour J.) wrote:
> In <[email protected]>, on 12/18/2015
>    at 08:31 PM, Clark Morris <[email protected]> said:
>
>> Are there any current IBM references to DOS/VSE?
> DOS/VSE is the old free base, and has been dead for decades. There are
> probably lots of references to the current descendent, and perhaps
> even to VSE/ESA.
No (about the "free", not about the "dead for decades"), DOS/VS was the
last really free base (last version Release 34?).   Perhaps technically
DOS/VSE was "free", as there didn't appear to be a monthly licensing
charge for DOS/VSE itself (Computerworld, April 30, 1979, p4), but in
the practical sense a production DOS/VSE system was definitely not free
as there were monthly support charges for DOS/VSE and separate monthly
licensing plus support charges for must-have VSE add-on components like
VSE/Power and others.  DOS/VSE came out with the IBM 4331 & 4341
processors in 1979 and supported running in both S/370 mode or the
ECPS:VSE mode supported by the 4300 processor family.
>
>> Does anyone run VSE on the bare metal?
> ITYM on the bare LPAR; I'm not aware of any z processors that supports
> running anything but PR/SM on the bare metal. DOS/VSE requires S/370
> mode, which is no longer available, but z/VSE should run just fine on
> a bare LPAR.
>  

-- 
Joel C. Ewing,    Bentonville, AR       [email protected] 

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