I joined IBM after college, summer of '68, spent six months in various classes 
before joining the OS/360 System Design Department as a junior programmer. Bill 
Collier was one of the instructors, an amazing/brilliant motivated and 
motivating teacher. Coincidentally, I very recently saw a reference to an IBM 
colleague's obituary Bill wrote, that led me to some posts from Bill, which led 
me to Bill.

Here's the Web page I found, it's stories from Stretch/Harvest, a couple of notable S/360 
predecessors: http://users.bestweb.net/~collier/sh/stories.html -- with the obit I 
mentioned first. When I knew him, Ken Plambeck was a towering/imposing senior programmer 
who "owned" OS control blocks -- that is, he allocated fields in them to 
deserving projects and programmers.

Some of what Bill said to me:

My time at IBM was spent pursuing the
 problems of parallelism. The difference between single threaded code vs
 multithreaded code is like the difference between hiking on a trail and
 bushwacking. I got a book out of it, Reasoning About Parallel
 Architectures, and, after leaving, my own company, Multiprocessor
 Diagnostics (www.mpdiag.com).

Mike Myers said:

The behavior was documented in a technical report called "OS/360
Coding Notes" by a brilliant IBMer named Bill Collier.

--

Gabriel Goldberg, Computers and Publishing, Inc.          (703) 204-0433
3401 Silver Maple Place, Falls Church, VA 22042        [email protected]
LinkedIn: http://www.linkedin.com/in/gabegold

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