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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]
Free BIOS implementations (6 P) Pages in category "BIOS" ... System Management BIOS; System Management Mode; U. UEFI Forum;
I/O System may refer to: DOS BIOS (Basic Input/Output System), a low-level component in DOS operating systems, including PC DOS and DR-DOS I/O System (86-DOS) , the DOS-BIOS specifically in 86-DOS
BIOS—Basic Input Output System; BJT—Bipolar Junction Transistor; bit—binary digit; Blob—Binary large object; Blog—Web Log; BMP—Basic Multilingual Plane; BNC—Baby Neill Constant; BOINC—Berkeley Open Infrastructure for Network Computing; BOM—Byte Order Mark; BOOTP—Bootstrap Protocol; BPDU—Bridge Protocol Data Unit
[3] [nb 1] Under PC DOS, the system attribute is set in order to mark the file as non-movable, a restriction technically not necessary under DR-DOS. [ 7 ] [ 5 ] [ 6 ] [ 8 ] [ 3 ] As IBMBIO.COM is a binary image containing executable code rather than a true COM -style program, the hidden attribute is set to keep the file from being accidentally ...
Phoenix Technologies Ltd. is an American company that designs, develops and supports core system software for personal computers and other computing devices. The company's products – commonly referred to as BIOS (Basic Input/Output System) or firmware – support and enable the compatibility, connectivity, security and management of the various components and technologies used in such devices.
BIOS interrupt calls perform hardware control or I/O functions requested by a program, return system information to the program, or do both. A key element of the purpose of BIOS calls is abstraction - the BIOS calls perform generally defined functions, and the specific details of how those functions are executed on the particular hardware of the system are encapsulated in the BIOS and hidden ...
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.