🚀 go-pugleaf

In article <53...@fy.sei.cmu.edu>, p...@sei.cmu.edu (Patrick Place) writes:
> In article <93...@spool.cs.wisc.edu>, pfei...@herve.cs.wisc.edu (Phil Pfeiffer) writes:
> > original Algol 60 report.  The idiom is called "Jensen's device."  I was 
> > wondering if anyone knew who Jensen was, and why this came to be known as
> > his device?
> The person you are looking for is J. Jensen of Regnecentralen, Copenhagen.
> 
> Not that I have any personal knowledge, just a few reference books,
> one of which has the above information.

Appendix A of 
   Description of ALGOL 60 by Heinz Rutishauser, Springer-Verlag, 1967 
begins with 6 pages devoted to Jensen's Device.  Indicating that it
was proposed by J. Jensen of Regnecentralen, Copenhagen in 1960.

The other ``classic'' ALGOL 60 book,
  ALGOL 60 Implementation: The Translation and Use of ALGOL 60 Programs on
  a Computer by B. Randell and L. J. Russell, Academic Press, 1964
lists two papers by Jensen:
  Jensen, J., Mondrup, P. and Naur, P. (1961) A Storage Allocation
    Scheme for ALGOL 60.   Comm. A.C.M. 4, 10,  pp 441-445
and
  Jensen, J. and Naur, P. (1961) An Implementation of ALGOL 60 Procedures.
    Nord. Tidskr. Inform.-Behand. 1, 1, pp. 38-47.

Referring to the CACM article above, we find out that Jensen, Mondrup, and
Naur were all at Regnecentralen, Copenhagen at the time.  Also, in referring
to the Nord. Tidskr. Inform.-Behand. paper, in the CACM article it is referred
to as appearing in the Journal B.I.T. which is normally cataloged as BIT
in U.S. computer science collections.  Unfortunately, our collection doesn't
go back that far, so I wasn't able to look at that article.  

Without seeing it, I sort of suspect that a preprint version of the
BIT article is what Rutishauser is referring to, but it could be that
it was word of mouth, some random tech report, or it might even of have
shown up in the Algol-Bulletin whose first 15 issues (Nov 59 - June 62)
were edited by P. Naur.  Would be interesting to know the actual citation
for Jensen's Device, since subsequent authors don't seem to have
clarified exactly how this idea entered the literature.

--- BOB (web...@athos.rutgers.edu ; rutgers!athos.rutgers.edu!webber)