Perpendicular recording

Perpendicular recording is a way of writing and storing information on a computer hard drive. Imagine you have a really long piece of paper and you want to write words on it, like your name or a story. One way to write them would be to write them all in one long line, from left to right. But sometimes, you might run out of space and not be able to write everything you want to. This is kind of like how old computer hard drives used to work.

But with perpendicular recording, we write the words up and down instead of left to right. This means we can fit a lot more words on the paper without running out of space. It's like stacking blocks on top of each other instead of trying to fit them all in one line.

When we do perpendicular recording, we use tiny magnets to represent the information we want to store. We can arrange the magnets so that they are all standing up straight, like little soldiers. This way, we can fit more of them on the hard drive and store more information.

Overall, perpendicular recording is a way to store more information on a computer hard drive by arranging tiny magnets up and down instead of side to side. It's kind of like stacking blocks instead of trying to fit everything on one line.