Self-Study Guide

The most important slides are two. THe first one explains the container concept:

http://people.cs.pitt.edu/~chang/163/c31a/page4.htm

The second one illustrates the client-server example:

http://people.cs.pitt.edu/~chang/163/c31a/AK04.htm

Once you have a firm grasp of the concepts underlying these two slides, then study the rest.