Would you like to know more about the information technology in your home and in your pocket? Have you always been curious about how the internet works? Would you like to be better equipped to deal with problems that may arise with your computing devices? If so, this book is for you. It provides a ground-up introduction to the information technology used by millions of people every day, providing the reader with a clear understanding of: - the anatomy of a computer - how computers "boot up" and run programs - how networks allow computers to communicate with each other - how the internet works - the worldwide web - how emails reach their destination - portable computing devices such as smartphones and tablets - security issues, and how to protect yourself on the internet - what makes computers run slowly, and what you can do to prevent it. Important concepts are described in an easily readable way, leaving the reader with an excellent understanding of the most important concepts behind the information technology that they use every day.