CMPU-181, Spring 2013
Asmt. 2
Due:  Friday, Feb. 15, 2013 @ 5:00 p.m.


Over the past several classes we have explored the computational model
of the Scheme programming language.  We have discussed the syntax
rules for Scheme, which specify the legal character sequences we can
use to talk to the drScheme computer.  We have also discussed the
semantics rules for Scheme, which specify the data that those
character sequences represent, as well as the computations done by the
all-important EVAL function.

For this assignment, you will write a two-page essay in which you
describe the computational model of a fictitious human computer using
an approach similar to that taken in the Scheme Summary handout.
However, you need not be so technical or precise; instead, you may
take a more casual approach.  In addition, you may focus on whatever
kinds of "computations" you want the human computer to be able to do;
and you may choose any kind of language (spoken, signed, typed, etc.)
for communicating with the human computer.  Your human computer will
also need some sort of language for communicating with you; however,
it may use a completely different mode of communication.  Although you
may take a more casual approach, be sure to clearly distinguish the
syntax and semantics!  Finally, be sure to include some examples that
illustrate the kinds of computations your human computer can do.  In
those examples, be sure to describe the communications between you and
the computer.

The purpose of this assignment is to exercise your understanding of
the concepts of syntax, semantics and a computational model.  Please
feel free to be creative.  Have fun with it.

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  Technicalities.

    As in Asmt. 1, use the EMACS program to create the TEX file and
    the PDFLATEX program to convert the TEX file into a
    publication-quality PDF file.  A sample TEX file, called
    my-asmt-2.tex, is included in the asmt2 directory, along with the
    corresponding my-asmt-2.pdf file.

    Use the ACROREAD program to view your PDF file.  When you are
    finished, you can also print your PDF file using that program.  Be
    sure to print it on the Asprey printer.  Place your print out in
    the box outside my office, OLB 118.

    To submit electronically, use the submit181 command in the
    Terminal window.  For more details, see the instructions for
    submitting asmt 1.

        submit181 asmt2 yourAsmt2DirectoryName