ROM BIOS

E191794

ROM BIOS is the built-in firmware in early IBM PCs that initializes hardware and provides low-level services for loading and running operating systems.

All labels observed (9)

How this entity was disambiguated

Statements (48)

Predicate Object
instanceOf IBM PC component ⓘ
firmware ⓘ
system BIOS ⓘ
abbreviationOf Basic Input/Output System stored in ROM ⓘ
accessMethod BIOS function calls ⓘ
software interrupts ⓘ
acronymOf Basic Input/Output System ⓘ
linked to: ROM BIOS
architecture 16-bit x86 ⓘ
associatedWith IBM PC BIOS interface standard ⓘ
bootProcessStage first code executed after CPU reset vector ⓘ
loading boot sector into memory ⓘ
selecting boot device ⓘ
transferring control to boot sector code ⓘ
compatibilityRequirement IBM PC compatible hardware ⓘ
linked to: IBM PC compatible
configurationStorage CMOS RAM (via CMOS setup) ⓘ
developedFor IBM PC compatible computers ⓘ
IBM Personal Computer ⓘ
linked to: IBM PC
era early IBM PC era of the 1980s ⓘ
evolvedInto UEFI firmware ⓘ
flash BIOS ⓘ
executesOn x86 CPU ⓘ
linked to: x86
fullName Read-Only Memory Basic Input/Output System ⓘ
linked to: ROM BIOS
introducedBy IBM ⓘ
introducedWith IBM Personal Computer Model 5150 ⓘ
linked to: IBM PC
performs Power-On Self Test ⓘ
primaryFunction hardware initialization at startup ⓘ
loading the operating system from bootable media ⓘ
providing low-level system services to software ⓘ
providesInterface INT 10h video services ⓘ
INT 13h disk services ⓘ
INT 16h keyboard services ⓘ
INT 19h bootstrap loader ⓘ
software interrupt services ⓘ
replacedBy modern system BIOS implementations ⓘ
responsibleFor detecting installed memory ⓘ
initializing disk controllers ⓘ
initializing keyboard controller ⓘ
initializing video hardware ⓘ
providing basic hardware abstraction ⓘ
setting up interrupt vector table ⓘ
runsInMode real mode ⓘ
storedIn read-only memory ⓘ
storedOn ROM chips on the system motherboard ⓘ
usedBy MS-DOS ⓘ
PC DOS ⓘ
linked to: MS-DOS

boot loaders ⓘ
early IBM PC operating systems ⓘ
userConfigurableVia BIOS setup program ⓘ

How these facts were elicited

Referenced by (9)

Full triples — surface form annotated when it differs from this entity's canonical label.

IBM PC XT → osLoader → ROM BIOS ⓘ
IBM PC AT → bios → IBM AT BIOS ⓘ
linked to: ROM BIOS
ROM BIOS → fullName → Read-Only Memory Basic Input/Output System ⓘ
linked to: ROM BIOS
ROM BIOS → acronymOf → Basic Input/Output System ⓘ
linked to: ROM BIOS
IBM PC XT BIOS → successorTo → IBM PC 5150 BIOS ⓘ
linked to: ROM BIOS
Windows Boot Manager → supportsFirmwareInterface → BIOS ⓘ
linked to: ROM BIOS
UEFI → predecessor → EFI ⓘ
linked to: ROM BIOS
Phoenix Technologies → product → Phoenix BIOS ⓘ
linked to: ROM BIOS
CP/M-Plus → hasComponent → BIOS (Basic Input/Output System) ⓘ
linked to: ROM BIOS