Pascal-An Introduction to
the Art and Science of Programming
The Dr. Pascal System
This book can be used with any systems that is running a version
of standard Pascal. If, however, you are still choosing a system,
we have some suggestions and software that may help you with your
planning. One very nice system for an introductory course is the
Dr. Pascal system produced by the Visible Software Co. The Dr.
Pascal systems provides an editor, debugger, and a standard
Pascal compiler together in one integrated environment. The Dr.
Pascal system was designed specifically to be used in
introductory courses. The debugger displays variable values and
procedure calls in a layout that is nice for any programmer, but
that is particularly clear to beginning programmers. Dr. Pascal
has a number of other nice little additions that are important
for a beginning student, such as the ability to restart a program
that has failed due to incorrect input. Versions of Dr. Pascal
are available for PC, Macintosh, and VMS systems.
Discounted and Free Pascal Interpreters
A free copy of the complete Dr. Pascal system in either a Mac or
PC compatible version is available to qualified instructors upon
adoption of this text, while supplies last. A coupon that allows
students to buy the complete Dr. Pascal system at a discounted
price is include at the end of this book.
A less elaborate Pascal interpreter (produced by the same
company that produces Dr. Pascal) is available free via anonymous
ftp from the publishers of this book. This interpreter can be
distributed free to students so that each student who owns a
home computer can have her or his own Pascal interpreter. There
are versions of this command line interpreter for both PC and
Macintosh systems. Instructions for obtaining the interpreter
via anonymous ftp are included in the section of this preface
entitled Supplements and FTP.