This does not apply for PCs.
This file is somewhat specific. It allows to define parameters of starting of all the system. It is strongly used for certain configurations.
These files are located in the system at this address:
/boot/config.txt
/boot/recalbox-user-config.txt
It is STRONGLY NOT RECOMMENDED to add data to the
config.txtfile (unless otherwise stated) or you will lose everything the next time you upgrade. If you need to add a configuration, edit therecalbox-user-config.txtfile so that you will have everything back when you update.
nano /boot/config.txt
nano /boot/recalbox-user-config.txt