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Various I/O protocols can be used, SPI being the most common. Unified Extensible Firmware Interface (UEFI, / ˈjuːɪfaɪ / or as an acronym) [c] is a specification that defines an architecture for the platform firmware used for booting a computer's hardware and its interface for interaction with the operating system.
A boot disk is a removable digital data storage medium from which a computer can load and run (boot) an operating system or utility program. [1] The computer must have a built-in program which will load and execute a program from a boot disk meeting certain standards. While almost all modern computers can boot from a hard drive containing the ...
Booting. A flow diagram of a computer booting. In computing, booting is the process of starting a computer as initiated via hardware such as a button on the computer or by a software command. After it is switched on, a computer's central processing unit (CPU) has no software in its main memory, so some process must load software into memory ...
EFI system partition. The EFI (Extensible Firmware Interface) system partition or ESP is a partition on a data storage device (usually a hard disk drive or solid-state drive) that is used by computers that have the Unified Extensible Firmware Interface (UEFI). When a computer is booted, UEFI firmware loads files stored on the ESP to start ...
A master boot record (MBR) is a type of boot sector in the first block of partitioned computer mass storage devices like fixed disks or removable drives intended for use with IBM PC-compatible systems and beyond. The concept of MBRs was publicly introduced in 1983 with PC DOS 2.0. The MBR holds the information on how the disc's sectors (aka ...
A boot image is a type of disk image that when on a boot device allows the associated computer to boot. [1] A boot image usually includes an operating system, utilities, diagnostics, boot and data recovery information and applications used organization-wide. A specialized image for a particular department or type of user may be called a ...
When interrupt 19h is called, the BIOS attempts to locate boot loader software on a "boot device", such as a hard disk, a floppy disk, CD, or DVD. It loads and executes the first boot software it finds, giving it control of the PC. [28] The BIOS uses the boot devices set in Nonvolatile BIOS memory , or, in the earliest PCs, DIP switches.
The system partition and the boot partition (also known as the system volume and the boot volume) are computing terms for disk partitions of a hard disk drive or solid-state drive that must exist and be properly configured for a computer to operate. There are two different definitions for these terms: the common definition and the Microsoft ...