I am looking for disks (real disks or a disk image) for Micro-DYNAMO,
a simulation package for the Apple //.
The software was sometimes accompanied by a book, Introduction to
System Dynamics modeling with DYNAMO.

(A review of the software can be found on google books:
http://books.google.com/books?id=7i8EAAAAMBAJ&pg=PA84&lpg=PA84&dq=site:books.google.com
(ComputerWorld review)

My interest is historical curiousity, and interest in re-running old
models.  I have newer versions of system dynamics software, but the
syntax is different.  I want to run simulations written in the earlier
days of system dynamics modeling.  I have the Apple Pascal system.

Please let me know if you know of someone who has kept these disks.

Ralph wrote:
> I am looking for disks (real disks or a disk image) for Micro-DYNAMO,
> a simulation package for the Apple //.
> The software was sometimes accompanied by a book, Introduction to
> System Dynamics modeling with DYNAMO.
> 
> (A review of the software can be found on google books:
> http://books.google.com/books?id=7i8EAAAAMBAJ&pg=PA84&lpg=PA84&dq=site:books.google.com
> (ComputerWorld review)
> 
> My interest is historical curiousity, and interest in re-running old
> models.  I have newer versions of system dynamics software, but the
> syntax is different.  I want to run simulations written in the earlier
> days of system dynamics modeling.  I have the Apple Pascal system.
> 
> Please let me know if you know of someone who has kept these disks.

I was looking for this some years back, too.

I hope it turns up--DYNAMO was a pretty useful simulation language.

-michael

NadaNet and AppleCrate II: parallel computing for Apple II computers!
Home page: http://home.comcast.net/~mjmahon

"The wastebasket is our most important design
tool--and it's seriously underused."

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"Michael J. Mahon" <mjmahon@aol.com> writes:

> I hope it turns up--DYNAMO was a pretty useful simulation language.

I'm an IIGS user (I still fire up an emulator every once in a while),
but I never knew there was a Dynamo for the Apple.  (I'm also an HP
alum, Michael.)

You might be interested in two simulators that are similar, but neither
will let you run old Micro-Dynamo simulations.

I'm pretty sure I have run system dynamics simulations written for Paul
Fishwick's SimPack (http://www.cise.ufl.edu/~fishwick/simpack.html) on a
IIGS using ORCA/C.  That is a pretty simplistic simulator (its queueing
and other simulation modules were much more sophisticated), but I'm sure
it would work.  Then again, you could probably write the simulation from
scratch in about the time it takes to find and install SimPack.

More recently, I've used MCSim (http://www.gnu.org/software/mcsim/).
That is described as if it were a physiologically based pharmacokinetic
simulator, but that's really the same thing; see "System Dynamics with
MCSim: A Facilitated Systems Quick Reference" and "System Dynamics for
Cheapskates" at http://facilitatedsystems.com/pubs.html#st.  I don't
think I've ever tried MCSim on an Apple, as I'd need to get the GNU
Scientific Library running first (I tried on Windows and, so far, have
failed, even though I know someone who has made that work, and I did,
too, once upon a time).

Bill
- -- 
Bill Harris                  http://makingsense.facilitatedsystems.com/
Facilitated Systems                              Everett, WA 98208 USA
http://www.facilitatedsystems.com/               phone: +1 425 374-1845
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