The "Operating System" of the console. It handles how the hardware interacts with software, manages the user interface, and provides the necessary drivers for games to run.
Unlike traditional PCs, the Nintendo Switch does not have a user-accessible or user-updatable "BIOS" in the classic sense (e.g., UEFI/BIOS setup screen). Instead, it uses a and a chain of bootloaders stored in eMMC. This report clarifies the Switch’s low-level boot process, its security architecture, and why there is no standard "BIOS configuration" for end users. bios nintendo switch
If you’re setting up a new console or sharing with friends: The "Operating System" of the console
Here is everything you need to know about the software that powers your Switch. manages the user interface