How Does Unicode, in friendly terms: ASCII, UTF-8, code points, character encodings Work?

Unicode is like a big, friendly dictionary that helps computers understand all the letters, symbols, and characters from around the world, not just English ones.

Imagine you're playing with building blocks. ASCII is like having only red blocks: it can make simple letters (like A to Z) and basic symbols, but not much more. It’s great for simple messages, like “Hello!”

But if you want to say “你好” (which means “Hello” in Chinese), you need more kinds of blocks. That’s where Unicode comes in, it's like having a rainbow of blocks: red, blue, green, and many more colors, so you can build all kinds of words from any language.

Now, how do computers know which block is which? That's where code points come in. A code point is like a special number assigned to each character, just like your school ID helps the teacher know who you are.

UTF-8 is a clever way to turn these numbers into something the computer can read and send across the internet, like a secret code that works for all languages. It’s like having a universal translator so everyone can understand each other!