This
paper appears in the Journal of Computing in Small Colleges, Volume 12, Number 4,
Pages 58-74, March 1997. Copyright ©1997 by the Consortium for
Computing in Small Colleges. Permission to copy without fee all or
part of this material is granted provided that the copies are not made
or distributed for direct commercial advantage, the CCSC copyright notice
and the title of the publication and its date appear, and notice
is given that copying is by permission of the Consortium for Computing
in Small Colleges. To copy otherwise, or to republish, requires a fee
and/or specific permission. The paper was presented at the CCSC South-Central Conference,
April 11, 1997, San Antonio, Texas.
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