Contents:Ch1- Why computers matter to you: becoming computer literate-- Technology in Focus ( The history of the PC)-- Ch2- Looking at computers: understanding the parts-- Ch3- using the internet: making the most of the web`s resources-- Technology in Focus ( Information technology ethics)-- Ch4- application software: programs that let you work and play-- Ch5- Using system software: the operating system, utulity programs, and file management-- Technology in Focus (Computing Alternatives)-- Ch6- Understanding and assessing hardware: evaluating your system-- Ch7: Networking and security: connecting computers and keeping them safe from hackers and viruses--Technology in Focus (Protecting your computer and backing up your data-- Ch8: Mobile computing: keeping your data on hand-- Technology in Focus (Digital entertainment)-- Ch9: Behind the scenes: a closer look at system hardware--Technology in Focus (Careers in IT)-- Ch10- Behind the scenes: building applications-- Ch11- Behind the scenes: databases and information systems-- Ch12- Behind the scenes: networking and security-- Ch13- Behind the scenes: the internet: how it works.