How Computers See & Hear

Your eyes see light. Your ears hear sound. Computers don’t have eyes or ears. But cameras and microphones can turn light and sound into numbers. And computers are very, very good at numbers.

A photo is a grid of tiny colors

Zoom into any photo far enough and you’ll see little squares called pixels. Each pixel is just three numbers — how much red, how much green, how much blue. A computer “sees” a photo as a giant spreadsheet of red-green-blue numbers.

Sound is a wiggly line

A microphone turns sound waves into a wiggly line. The computer saves that wiggle as thousands of numbers per second. Loud = big numbers. Quiet = small numbers.

So what does the AI do?

It looks at those numbers and hunts for patterns. “The red numbers in the top-left usually mean sky.” “This wiggle shape is usually the letter M.” It’s not magic — it’s pattern hunting at an enormous speed.

Remember

• Cameras and microphones turn the world into numbers.
• The AI looks for patterns in those numbers.