1. HDD
- Watch a video of what a spinning HDD looks like. https://www.youtube.com/watch?v=ojGvHDjHPb4
- Watch a nice deep dive but still at a high level of the science and engineering at play. https://www.youtube.com/watch?v=wteUW2sL7bc
- Watch a really thourough deep dive on HDD. It’s similar to the last but has more detail on multiple areas. whereas the previous one was better with intuition
2. Databases
- Good higher level overview of how the Physical connects with Database connepts https://www.youtube.com/watch?v=DbxddGtHl70
- More detailed view of the units and organization that these hard drives use. It follows an Oriely book and its images https://www.youtube.com/watch?v=haz2h7_xFDk