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The original EFI specification remains owned by Intel, which exclusively provides licenses for EFI-based products, but the UEFI specification is owned by the UEFI Forum. [8] [15] Version 2.0 of the UEFI specification was released on 31 January 2006. It added cryptography and security. Version 2.1 of the UEFI specification was released on 7 ...
An option ROM for the PC platform (i.e. the IBM PC and derived successor computer systems) is a piece of firmware that resides in ROM on an expansion card (or stored along with the main system BIOS), which gets executed to initialize the device and (optionally) add support for the device to the BIOS.
GRUB 2, elilo and systemd-boot serve as conventional, full-fledged standalone UEFI boot managers (a.k.a. bootloader managers) for Linux. Once loaded by a UEFI firmware, they can access and boot kernel images from all devices, partitions and file systems they support, without being limited to the EFI system partition.
In computing, BIOS (/ ˈ b aɪ ɒ s,-oʊ s /, BY-oss, -ohss; Basic Input/Output System, also known as the System BIOS, ROM BIOS, BIOS ROM or PC BIOS) is a type of firmware used to provide runtime services for operating systems and programs and to perform hardware initialization during the booting process (power-on startup). [1]
Offline news readers using NNTP are similar, but the messages are organized into news groups. Most e-mail protocols, like the common POP 3 and IMAP 4 used for internet mail, need be on-line only during message transfer; the same applies to the NNTP protocol used by Usenet (Network news).
As of version 1.3, the PI specification contains five volumes: Volume 1: Pre-EFI Initialization Core Interface; Volume 2: Driver Execution Environment Core Interface; Volume 3: Shared Architectural Elements; Volume 4: System Management Mode Core Interface; Volume 5: Standards
Typical POST screen (AMI BIOS) Typical UEFI-compliant BIOS POST screen (Phoenix Technologies BIOS) Summary screen after POST and before booting an operating system (AMI BIOS) A power-on self-test ( POST ) is a process performed by firmware or software routines immediately after a computer or other digital electronic device is powered on.
In computing, the System Management BIOS (SMBIOS) specification defines data structures (and access methods) that can be used to read management information produced by the BIOS of a computer. [1] This eliminates the need for the operating system to probe hardware directly to discover what devices are present in the computer.