How switches become numbers, and numbers become text, pictures on a screen and sound in the air.
You will be able to explain why computers count in twos, and convert any You will be able to read hexadecimal on sight, and say where you meet it...
You will be able to say what light is, and why your eye sees a slice of it. You will be able to explain why three colours can fake millions....
You will be able to say what sound physically is, with numbers. You will be able to draw a speaker and name every part in it....