> For the complete documentation index, see [llms.txt](https://huataihuang.gitbook.io/cloud-atlas-draft/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://huataihuang.gitbook.io/cloud-atlas-draft/server/bios.md).

# BIOS

[BIOS](https://en.wikipedia.org/wiki/BIOS)即是Basic Input/Output System（基本输入输出系统），是PC主机启动过程中执行的硬件初始化的firmware。