Ralph covered how to run (any) software package, and how to connect to the internet. He also reviewed, in depth, Family Tree Maker, the only genealogy software he seems to be familiar with. If you don't know much about the internet or computers, this book will be helpful.
However, most of us are familiar with both (Hey, we're on Amazon.com, aren't we?), so more than half the book is wasted. There are about ten pages of weblinks which can be had simply by going to a decent search engine, like Yahoo!. Spend your money on another genealogy book.