Codex Gamicus
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{{ElementInfobox | type = Terminology }} '''''BIOS''''', or '''Basic Input/Output System''', also sometimes referred to as [[firmware]], is the software that boots when a computing device that employs it first starts. The BIOS can have simple or complex functionality, and it all depends on the device for what functions the BIOS provides. In general, the BIOS handles basic error checking and POST functionality before handing off the boot process either to internal system software, or booting software from a provided medium like a cartridge or hard drive. Some BIOSes can store user-configurable data; to prevent data loss, the data is held in low-power volatile RAM called a [[CMOS]], often powered by a [[CR2320]] battery. Some video games have their save data maintained in the same way directly on the cartridge. {{Emulation}}
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