What are ascii characters?

ASCII characters are like a special language that computers use to understand letters and symbols.

Imagine you have a big book of secret codes, each code stands for a letter or symbol, like "A" or "5". That's what ASCII is: a list of numbers that represent the things we write. When a computer sees the number 65, it knows that means the letter A, just like when you see a picture of an apple in your lunchbox and know it’s time for snack.

Think of ASCII as a translator between humans and computers. You type "Hello!" on your keyboard, but the computer doesn’t understand letters, it only understands numbers. So it turns each letter into a number from 0 to 127. The letter H, for example, becomes 72.

ASCII is used everywhere: in text messages, video games, and even your favorite apps! Without ASCII, computers wouldn’t know how to show letters on the screen, it would just be a bunch of numbers. But with ASCII, you can write stories, play games, or send funny emojis (though those are a bit more advanced!).