How does your CPU control a HDD, does the HDD have its own tiny processor to tell the arm where to move?

Question

How does your CPU control a HDD, does the HDD have its own tiny processor to tell the arm where to move?

In: Technology

Answer 1

These days (well for some time really) yep.

Imagine it like this. You work in an office and you need a particular file that’s stored in the archive room. So you tell your co-worker I need this file in the 3rd drawer down of the 4th file cabinet from the left, and they come back with the paper. In the same way, the CPU tells the HDD what location it needs data from and the HDD takes care of actually retrieving it.