(j3.2006) Question about DIM

Dick Hendrickson dick.hendrickson
Tue Jan 12 18:03:26 EST 2016

I'm pretty sure I started in the spring/summer of 1962.  Used a Control
Data 160 desktop computer (actually, it was the whole desk.)  It had 4096
words of 12 bit memory and a 6.4 Microsecond cycle time.  I started in
assembly language, but within the year CDC came out with a Fortran
compiler.  A three pass compiler (it fit on 3 rolls of paper tape) and it
used paper tape to pass intermediate results from pass to pass.  It was
small, but people did real physics on it

Dick Hendrickson

On Tue, Jan 12, 2016 at 3:42 PM, Van Snyder <Van.Snyder at jpl.nasa.gov> wrote:

> On Tue, 2016-01-12 at 14:35 +0000, Bill Long wrote:
> >
> > > I wrote my first Fortran program for a DEC PDP-8s in the summer of
> > 1967.  I
> >
> > Mine was an IBM 1130 in the summer of 1968. (NSF Summer Science
> > program for high school students. I wonder of they still have that.)
> Mine was in the fall of 1963 on the IBM 1620.  While JPL was expanding
> for the Ranger and Surveyor projects, there was a time when several
> temporary house-trailer offices were outside the fence.  My brother was
> working in one of them, developing schedules for projects to use the
> Deep Space Net.  One of his colleagues would sign up for time at 11:00
> PM, and then call me and say "I'm not going to use it."  I'd park my
> motorcycle under the trailer and use the 1620 for an hour or so.  That
> lasted for about six weeks.  Then I started stealing 1620 time at Cal
> State LA.  Admittedly, that was FORTRAN II.  I didn't start using
> FORTRAN IV until late 1964 or early 1965, on the 7094 at Caltech.
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