

Eh, the BIOS is ultimately just some code on a ROM chip, it working the way it does was a design decision by IBM, it wasn’t because of the CPU they used. There’s nothing technical standing in the way of making a PC-like ecosystem based on ARM chips.
The reason phones don’t have this is because they’re (almost) always fully integrated systems where you don’t ever swap out any of its parts for different ones, so there’s no incentive to create a flexible system, both on the hardware and software side, that can deal with different hardware on-line over just baking in all the hardware-specific stuff off-line.


“Mikan” on its own typically refers to citrus unshiu, but it’s also the name of a larger family of citruses that includes oranges (in fact, oranges are on the chart: of the four surrounding the big one in the middle, it’s the one on the lower left). It’s like how when you say “onion”, you probably mean the bulbous vegetable with the papery skin, but “onions” also includes green onions, welsh onions, leeks etc.