![]() UEFI is the modern solution and replacement for BIOS. UEFI vs Bios or legacyīoth UEFI and BIOS are low-level software that starts when PC boots before the operating system loads. It checks to see what hardware components are installed in the computer, initialises the components and then hands control over to the operating system. The new specification addresses several limitations of BIOS, including restrictions on hard disk partition size and the amount of time BIOS takes to perform its tasks.īecause UEFI is programmable, original equipment manufacturer (OEM) developers can add applications and drivers, allowing UEFI to function as a lightweight operating system. Like BIOS, UEFI is installed at the time of manufacturing and is the first program that runs when a computer is turned on. UEFI replaces the traditional BIOS with a new and enhanced interface between operating systems and firmware platforms. ![]() With a few exceptions, computer operating systems rely on the computer’s BIOS (Basic Input/output System) to communicate with hardware device firmware during the boot process (Boot Services) and after the system is booted (Runtime Services). UEFI represents a significant shift in the PC market from an outdated technology to a new modern one. ![]() UEFI stands for Unified Extensible Firmware Interface. ![]()
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