[SIGCIS-Members] help please -- two questions.

Dave Walden dave.walden.family at gmail.com
Tue Feb 16 08:46:10 PST 2016

Question 1:  Does anyone have an idea of how to reach A. J. Critchlow (or
if he is still alive)?  He was with IBM San Jose when his paper Generalized
Multiprocessing and Multiprogramming Systems was published in the
proceedings of the AFIPS 1963 Fall Joint Computer Conference.

This was in a conference session that also included a paper by Melvin
Conway entitled A Multiprocessor System Design.

Both papers mention the computer operating system function of Fork (in the
sense of fork-and-join).  In particular, the Conway paper describes the
capability in a way somewhat like the later implementation for the SDS940
time-sharing system.  The Conway paper also notes three operating systems
he had heard had something like the fork capability.

Question 2:  Does anyone know of any *earlier* references in the literature
to the work Fork used in this sense, or early operating system which had
this capability.

I am asking these questions on behalf of Linus Nyman who wrote his
dissertation on forking in a difference sense -- branches of work in the
software development process.  [Understanding Code Forking in Open Source
Software – an examination of code forking, its effect on open source
software, and how it is viewed and practiced by developers”:
https://helda.helsinki.fi/handle/10138/153135 ]

Linus has already asked the second question of various computer historians
and early operating system developers.  So he doesn't need pointers to
people of whom he might ask that question.  However, perhaps this much
larger SIGCIS group of people might include individuals who might have a
clue about about Critchlow or themselves have insight to
pre-Critchlow-and-Conway references to forking in the literature.

Thanks, Dave
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