nitsu: Nope. Needs a few months-years for that.
When your computer boots up, go into the setup. See? Even 80286 (and maybe even the AT/XT) have such a menu. That data doesn't get saved to the HD or something, because it says how to address the HD.
On your mainbord you might have noticed a flat battery. This keeps the CMOS alive, a little RAM (ROM is Read Only Memory) that cannot hold much data. If you look into the cases of transparent Gameboy games with save function, you'll notice a similar battery, which powers the save RAM. The CMOS battery is also used to let the internal clock work when the power supply is turned off. I mean, the GC's clock runs on as well. In addition to time and language, the GC CMOS seems to hold a flag whether or not you seem interested in 60Hz mode (i.e. get asked on each boot up).