How do OS installers works if there isn’t any OS that could manage applications in an empty computer?
In: Technology
There actually is something *kind of* like a very rudimentary OS built into an empty PC, called the BIOS. It’s stored on a permanent storage chip on the motherboard. The BIOS is the very first program the CPU starts executing once it’s powered up, and it only has a few jobs. Its main job is to scan the computer for internal hard drives or other storage media, and then look at the “boot sector” (a short block near the beginning) of those drives, to see if there’s any OS code there to run. If there is, then it loads and runs that code, and that’s how Windows or Linux or whatever starts running.
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