On Sat, 4 Feb 2017 13:24:41 -0500, Jim Mulder ([email protected]) wrote
about "Re: BSAM vs QSAM" (in
<ofee80157a.02b94811-on002580bd.0064ecec-852580bd.00652...@notes.na.collabserv.com>):

>  I asked Wayne Rhoten.  His recollection is that SAMe GAed as a product 
> around 1978,
> and was integrated in the early 1980s. 

This gels with my experience.

In the early 1980s I was working as a GCOS systems programmer on
Honeywell/GE mainframes, with little contact with IBM boxes. When I
returned to the IBM fold (c. 1984) I found that SAM had been largely
re-architected and was much as we see it today (except it was still
24-bit). The revised SAM was definitely bundled with DFP/XA, but did not
become 31-bit code until MVS/XA SP 2.2.
-- 
Regards,

Dave  [RLU #314465]
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[email protected] (David W Noon)
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