RE: Who is Glenn Henry?

["Steve Richter" <srichter@xxxxxxxxxxxxx>]

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx]On Behalf Of Graap, Ken
Sent: Thursday, July 29, 2004 1:29 PM
To: 'Midrange Systems Technical Discussion'
Subject: RE: Who is Glenn Henry?

>So did people like Jim Sloan, John Sears and Wayne O. Evans report to
>Glenn back in the early days of the S/38 ???

have you seen this link Ken?

http://www.woevans.com/CPFDesign.pdf

"...This idea of an abstract machine interface was not without its critics. 
There were several very qualified technical professionals that argued (with 
great passion) that such an abstract machine interface many be academically 
possible but would introduce so much overhead that the program execution would 
be poor. Much effort (and strong emotions) was being devoted to discuss and 
prove or disprove the performance of direct hardware or microcode 
implementations. ..."

"...I remember the day the issue was solved. A meeting of key technical staff 
was held one cold winter day in Rochester, MN. The proponents and opponents of
the abstract machine were gathered in the conference room of Glen Henry the
programming system manager. Glen was an extremely intelligent individual but
like so many truly gifted people, he lacked polished human interaction skills.
When Glen Henry saw the obvious answer he told you so with few words and
without any sugar coating. Glen proclaimed the end of the debate. With great
emotion he explained that the abstract machine interface (later to be known as
MI) was the only choice. Glen explained how this abstract machine would protect
IBM investment from the clone hardware vendors. He concluded with âeither get
with the program or I will be happy to sign the transfer of any individual to
another areaâ. ..."

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All the as400 heavyweights are oddly silent on the subject of giving credit to 
G. Glenn Henry for the success of the as400.   I have never seen an explanation 
of why he would leave IBM to go work for another technology company.  Was he 
pushed out?  

-Steve