Binary: The Language Your Computer Actually Speaks

Everything in software engineering eventually collapses into something extremely simple: 0 and 1 Not strings. Not objects. Not JSON. Not even machine instructions in the way we imagine them. Just electrical states. If you truly want to understand how computers work, you need to understand binary and how it eventually becomes text through something like ASCII. Let’s break it down from the absolute beginning. What Is Binary? Binary is a base-2 number system . While humans use base-10 (0–9), computers use: 0 1 Why? Because hardware operates on physical states: Off / On Low voltage / High voltage False / True Transistors, the building blocks of CPUs can only represent two stable states. That maps perfectly to binary digits. That’s why computers don’t "prefer" binary. They are physically built around it. What Is a Bit? A bit (binary digit) is the smallest unit of information. It can only be: 0 or 1 Alone, a bit isn’t very useful. But when you combine them, something powerful happens. What I