Hardware
Computer hardware and how to put a machine together.
Tutorials

Hardwarebeginner
PC Build
A 22-chapter tutorial that walks you through PC Build step by step, starting from the basics.
27 Lessons · 176 min

Hardwarebeginner
Raspberry Pi
25 step-by-step lessons covering everything from Raspberry Pi OS install/setup to GPIO, Python control, Linux tutorial concepts in action (SSH, systemd), a web dashboard, and a Temperature Monitor project.
25 Lessons · 200 min