Taking a look inside a laptop hard drive.

The hard drive,

Bottom,

Bottom case removed to reveal main PCB,

PCB separated from mechanical component,

“Hidden” screw on top case,

Top case removed,

Driver head,

Video of how it likely works,

For more epic teardowns, where they actually explain what you are looking at and how it works, checkout awesome YouTube channels like EEVBlog and Mike’s Electric Stuff. They take apart and sometimes repair epic things like flight recorders, defibrillators, X-Ray machines, POS pin pads, photocopiers, and phonebooths.