Why does deleted data stay on a HDD once written, waiting to be overwritten, as opposed to being removed when requesting deletion?

Question

Why does deleted data stay on a HDD once written, waiting to be overwritten, as opposed to being removed when requesting deletion?

In: 22

Answer 1

Efficiency. If there’s a paper document that you don’t need, you move it to the trash. You have to do extra work to run it through the shredder.