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About the Book
"How Does Computer Science Work?" is a comprehensive guide that answers 28 essential questions every software engineer should know, providing insights into the core technologies that shape our digital world.
This book bridges the gap between curiosity and understanding, tackling topics like how browsers work, how cryptography secures data, and how machine learning learns. It dives deep into modern innovations such as AI, Web3, and quantum computing, all while maintaining an approachable and engaging tone.
Each chapter is designed to be self-contained, allowing you to explore topics in any order that piques your interest. Whether you’re a seasoned developer seeking to deepen your knowledge or a curious learner eager to unravel the “how” behind technology, this book is your ultimate resource.
By the end of this journey, you’ll have a profound understanding of how the technologies you rely on daily truly work—and a newfound appreciation for the elegance and complexity of computer science.
What You’ll Learn
- Foundational Concepts: Master the building blocks of computer science, from algorithms and data structures to operating systems and networking protocols.
- Essential Technologies: Dive deep into how key technologies work, including HTTP, cryptography, databases, and cloud computing.
- Programming Insights: Explore the world of programming languages, compilers, and software development methodologies.
- Cutting-Edge Fields: Gain an understanding of emerging areas like artificial intelligence, machine learning, quantum computing, and blockchain.
- Practical Applications: Discover how computer science is applied in real-world scenarios like search engines, cybersecurity, big data analytics, and the Internet of Things.
Who This Book Is For
This book unlocks the essentials of computer science for a wide range of readers:
- Future Software Engineers: Build a rock-solid foundation for a successful career in software development.
- Computer Science Students: Gain practical insights and real-world context for your studies.
- Self-Taught Programmers: Deepen your understanding and fill in knowledge gaps.
- Experienced Developers: Refresh your knowledge and explore cutting-edge technologies.
- Tech-Curious Minds: Discover how the digital world works, from algorithms to AI.
If you want to understand the "why" behind the "how" of software, this book is for you.
About the Author
Hello! I’m Héla Ben Khalfallah, a senior software engineering with a focus on modern web solutions.
I’m a passionate software engineer crafting elegant and high-performing web experiences. I have a special love for React, Node.js, and Python, and thrive in full-stack development, seamlessly working across the frontend, backend, and related configurations. My transversal skillset enables me to adapt to diverse challenges, ensuring robust and well-rounded solutions.
I enjoy exploring software architecture and design (architecture styles, design patterns, clean code), FrontendOps (code generators, CLI tools, configurations), and advanced software concepts (optimal algorithms, data structures, Big O). My focus is on optimizing performance, streamlining workflows, and building websites that are not only visually stunning but also SAGES (Semantic, Accessible, Green, Easy, and Secure).
Beyond coding, I’m passionate about simplifying software engineering by breaking down complex problems into elegant solutions and clearly communicating technical concepts. I channel this enthusiasm through my blog, where I share insights, and through storytelling at conferences, meetups, and events.
Driven by a constant desire to learn and innovate, I’m always pushing the boundaries of my skills and embracing opportunities to explore new technologies.