Conventions Used in This Book

Throughout the book, special typography indicates code and commands. Commands and code are shown in a monospaced font:

 This is how code looks. 

In the event that an example includes both input and output, the monospaced font is still used, but input is presented in bold type to distinguish the two. Here's an example:

 $  ftp ftp.handsonhistory.com  Name (home:jake):  jake  Password:  ******  

The following boxes are used to call your attention to points that are particularly important.

Note 

A Note box provides extra information to which you need to pay special attention.

Tip 

A Tip box shows a special way of performing a particular task.

Caution 

A Caution box alerts you to take special care when executing a procedure, or damage to your computer hardware or software could result.

Cross-Reference 

A Cross-Reference box refers you to further information on a subject that you can find outside the current chapter.