The purpose of this exercise is to introduce the value unit, and to examine how it performs on a couple of problems that cause difficulty for perceptrons built from integration devices. The links on the right provide access to the software needed to run the exercise, the files used in the exercise, and a blank answer sheet for responding to the questions in this chapter. To retrieve a ".net" file for use, right-click the link and save the file to a desired location on your computer.