Includes index.

Content: Using technology to change the world -- Looking at computers; understanding the parts -- using the internet; making the most of the web's resources -- The history of the personal computer -- Application software; programs that let you work and play -- Systems Software; The operating systems, utility programs and file management -- Information technology ethics -- Understanding and assessing hardware; evaluating your systems -- Networking; connecting computing devices -- Under the hood -- Digital devices and media managing a digital lifestyle -- Securing your systems; protecting the digital data and devices -- Careers in IT -- Behind the scenes; database and information systems -- Behind the scenes; networking and security in the business world -- Behind the scenes; how the internet works.