This introduction to the Internet and commercial online services for the beginner and intermediate user explains the jargon behind the technology and gives a broad picture of how the different parts of the Internet combine and interrelate. It contains step-by-step advice on choosing and setting up a modem, and on installing and configuring the software necessary for accessing the on-line features described in the book. It also includes appendices that contain elements such as a selection of Web sites, useful troubleshooting tips and advices on how to handle the many different file formats found on the Internet.