Here's what I'd give to 10y/o me.
- Explain partitions and filesystems (I already knew CPU, HDD, RAM etc)
- Explain the boot startup process
- and how limited the motherboard's mechanisms and the pre-OS environment is
- Hand over:
- 1 working computer with an empty internal HDD (no OS pre-installed)
- 1 USB drive with Debian ISO
- 1 USB drive with Arch ISO
- 1 other internet connected device with a pre-installed web browser
Don't do this to others.