CHAPTER 1
Seeing the Big Picture in Coding
Your world is full of technology! From smartphones and laptops to streaming video and electric cars, tech is in every part of your life. Physical materials like metal, plastic, and glass can’t be turned into technology tools without instructions for “what to do” and “how to do it.” Tech uses computers, large or small, that contain instructions called code to do their jobs. Writing that code is called coding.

AI_Solution / Pixabay
What Is Coding?
Coding, also called computer programming, is creating instructions for a computing device to do something. Through coding, you can instruct computers to take in information and do something with that information. Sometimes, you also write code that will communicate information back to the people using the computing device. And sometimes, you write code that lets computers talk to each other.
Why Learn to Code?
You may wonder why you should learn to code. Maybe you love playing video games and you’d like to create your own cool games. Maybe you’ve heard how artificial intelligence (AI) is improving health by finding the genes that make people sick. Or maybe you’re inspired by entrepreneurs who coded navigation for self-driving cars — and you’d like to do that type of work, too! As humans depend more and more on code to run the tech in our lives, the people who know how to code have the skills ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access