Uefi disk map8/5/2023 The industry perceived EFI as a way to address the memory and processing limitations of BIOS in x86 server architectures. Intel developed the Extensible Firmware Interface (EFI) as an outgrowth of its 64-bit Itanium server architecture in the 1990s, a technology codeveloped with computer maker Hewlett Packard (HP). The emergence of UEFI parallels the increased drive densities used for modern application workloads. In 1981, IBM was the first vendor to incorporate BIOS in PCs, a move that prompted broad industry adoption. UEFI's evolution from EFIÄ«IOS has been in use since the advent of disk OS computers in the mid-1970s. However, for ease of understanding, some information technology users refer to the processes collectively as UEFI BIOS, despite their substantial differences. In general, BIOS is considered a vestige from earlier computing, whereas UEFI is regarded as the wave of the future. UEFI is programmable, enabling original equipment manufacturer developers to add applications and drivers and UEFI to function as a lightweight OS. Taken together, this information defines the required interfaces and structures that must be implemented for firmware and hardware devices to support UEFI. UEFI contains platform-related data tables and boot and runtime service calls used by the OS loader. In addition, UEFI provides enhanced computer security features and supports most existing BIOS systems with backward compatibility. UEFI defines a new method by which OSes and platform firmware communicate, providing a lightweight BIOS alternative that uses only the information needed to launch the OS boot process. has stated its intention to phase out BIOS support in newer personal computers (PCs). Most modern computer systems are equipped to support traditional BIOS, as well as UEFI, although Intel Corp. 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. It checks to see which hardware components are attached, wakes up the components and hands them over to the OS. Like BIOS, UEFI is installed at the time of manufacturing and is the first program that runs when booting a computer. UEFI functions via special firmware installed on a computer's motherboard. The specification is most often pronounced by naming the letters U-E-F-I. UEFI is expected to eventually replace basic input/output system ( BIOS) but is compatible with it. Unified Extensible Firmware Interface (UEFI) is a specification for a software program that connects a computer's firmware to its operating system ( OS). What is Unified Extensible Firmware Interface (UEFI)?
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