zh-hans:zh-hans:可扩展固件接口在软件层次中的位置

统一可延伸韧体接口（Unified Extensible Firmware Interface, UEFI）是一种个人电脑系统规格，用来定义操作系统与系统固件之间的软件界面，作为BIOS的替代方案。可扩展固件接口负责加电自检（POST）、连系操作系统以及提供连接操作系统与硬件的接口。

UEFI的前身是Intel在1998年开始开发的Intel Boot Initiative，后来被重命名为可延伸韧体接口（Extensible Firmware Interface, EFI）。Intel在2005年将其交由统一可扩展固件接口论坛（Unified EFI Forum）来推广与发展，为了凸显这一点，EFI也更名为UEFI（Unified EFI）。UEFI论坛的创始者是11家知名电脑公司，包括Intel、IBM等硬件厂商，软件厂商Microsoft，及BIOS厂商AMI、Insyde及Phoenix。

The Unified Extensible Firmware Interface (UEFI, pronounced as an initialism U-E-F-I or like "unify" without the n) is a specification that defines a software interface between an operating system and platform firmware. UEFI replaces the Basic Input/Output System (BIOS) firmware interface originally present in all IBM PC-compatible personal computers, with most UEFI firmware implementations providing legacy support for BIOS services. UEFI can support remote diagnostics and repair of computers, even with no operating system installed.