A high-level overview of networking, data science and computer security. Designed for readers who don't care for academic formalities, it's a fast and easy guide. It teaches the foundations programmers and knowledge workers need to maximize their effectiveness. It explains how the Internet works from the ground up, how to analyse and derive knowledge from data, and how computers are able to predict the future with machine learning.

Contents

1. Connections
2. Communication
3. Security
4. Analysis
5. Learning
6. Conclusion
7. Bonus: Patterns

Computer science has a lot in common with physics. Both are about how the world works at a rather fundamental level. The difference is that while in physics you’re supposed to figure out how the world is made up, in computer science you create the world. In mathematics, as in programming, anything goes as long as it’s self-consistent. You can have a set of equations in which three plus three equals two. You can do anything you want.

—Linus Torvalds

Explaining where his love for computers stems from.