Why computers matter to you: becoming computer fluent -- Looking at computers: understanding the parts -- The history of the PC -- Using the internet : making the most of the Web's resources -- Application software: programs that let you work and play -- Digital entertainment -- Using system software: the operating system, utility programs, and file management -- Evaluating your system: understanding and assessing hardware -- Networking and security: connecting computers and keeping them safe from hackers and viruses -- Protecting your computer and backing up your data -- Mobile computing: keeping your data on hand -- Behind the scenes: inside the system unit -- Behind the scenes: software programming -- Behind the scenes: Databases and information systems -- Behind the scenes: networking and security -- Behind the scenes: the Internet: how it works -- Careers in it.