EISA

E184290

computer bus standard expansion bus

EISA (Extended Industry Standard Architecture) is a 32-bit computer bus standard developed in the late 1980s to provide improved performance and backward compatibility over the earlier ISA bus in personal computers and servers.

Try in SPARQL Jump to: Surface forms Disambiguation Statements Elicitation Referenced by

All labels observed (4)

Label	Occurrences
EISA canonical	3
EISA consortium	2
Extended Industry Standard Architecture	2
ISA expansion bus standard	1

How this entity was disambiguated

This entity first appeared as the object of triple T1635804 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: EISA
Context triple: [ISA, replacedBy, EISA]

A. EIDE
EIDE (Enhanced Integrated Drive Electronics) is an improved version of the IDE interface standard used to connect storage devices like hard drives and optical drives to a computer’s motherboard.
B. EAC
The EAC (East African Community) is a regional intergovernmental organization that promotes economic integration and cooperation among several East African countries.
C. EAC
EAC is a major warm ocean current flowing southward along the east coast of Australia, influencing the region’s climate and marine ecosystems.
D. ECASA
ECASA is a Cuban state-owned company responsible for managing and operating the country’s civil airports and air terminals.
E. Power ISA
Power ISA is IBM's modern 64-bit RISC instruction set architecture used in high-performance servers, embedded systems, and supercomputers, evolving from the earlier PowerPC architecture.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: EISA
Target entity description: EISA (Extended Industry Standard Architecture) is a 32-bit computer bus standard developed in the late 1980s to provide improved performance and backward compatibility over the earlier ISA bus in personal computers and servers.

A. EIDE
EIDE (Enhanced Integrated Drive Electronics) is an improved version of the IDE interface standard used to connect storage devices like hard drives and optical drives to a computer’s motherboard.
B. EAC
EAC is a major warm ocean current flowing southward along the east coast of Australia, influencing the region’s climate and marine ecosystems.
C. EAC
The EAC (East African Community) is a regional intergovernmental organization that promotes economic integration and cooperation among several East African countries.
D. ECASA
ECASA is a Cuban state-owned company responsible for managing and operating the country’s civil airports and air terminals.
E. Power ISA
Power ISA is IBM's modern 64-bit RISC instruction set architecture used in high-performance servers, embedded systems, and supercomputers, evolving from the earlier PowerPC architecture.
F. None of above. chosen

Statements (47)

Predicate	Object
instanceOf	computer bus standard ⓘ expansion bus ⓘ
abbreviation	EISA self-link ⓘ
addressBusWidth	32 bits ⓘ
backwardCompatibleWith	ISA ⓘ
bitWidth	32-bit ⓘ
busWidthComparedToISA	wider than ISA ⓘ
category	computer hardware interface ⓘ expansion card bus ⓘ
compatibleWith	ISA expansion cards ⓘ
competedWith	MCA ⓘ PCI Express ⓘ surface form: PCI VESA Local Bus ⓘ
configurationMethod	EISA configuration utility ⓘ
dataPathWidth	32 bits ⓘ
designedFor	multiuser systems ⓘ personal computers ⓘ servers ⓘ
developedInDecade	1980s ⓘ
developedInPeriod	late 1980s ⓘ
electricalCompatibility	ISA signaling levels ⓘ
fullName	EISA self-linksurface differs ⓘ surface form: Extended Industry Standard Architecture
introducedBy	EISA self-linksurface differs ⓘ surface form: EISA consortium
marketPosition	high-end alternative to ISA ⓘ
mechanicalDesign	two-level slot to accept ISA and EISA cards ⓘ
performanceComparedToISA	higher throughput than ISA ⓘ
powerSupplyPins	more than ISA ⓘ
predecessor	ISA ⓘ
primaryUseEra	early 1990s ⓘ
purpose	to provide backward compatibility with ISA ⓘ to provide improved performance over ISA ⓘ
slotType	edge connector ⓘ
standardizedBy	EISA self-linksurface differs ⓘ surface form: EISA consortium
status	obsolete ⓘ
succeededBy	Peripheral Component Interconnect ⓘ surface form: PCI
supports	32-bit data transfers ⓘ 32-bit expansion cards ⓘ DMA ⓘ bus mastering ⓘ interrupt sharing ⓘ memory addressing beyond 16 MB ⓘ software-based configuration ⓘ
typicalClockSpeed	8.33 MHz ⓘ
usedIn	IBM PC compatible ⓘ surface form: IBM PC compatible computers file servers ⓘ high-end 386 systems ⓘ high-end 486 systems ⓘ

How these facts were elicited

Referenced by (8)

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

ISA → replacedBy → EISA ⓘ

IBM PC compatible → usesBusArchitecture → EISA ⓘ

IBM PC AT → influenced → EISA ⓘ

this entity surface form: ISA expansion bus standard

Industry Standard Architecture → succeededBy → EISA ⓘ

this entity surface form: Extended Industry Standard Architecture

EISA → fullName → EISA self-linksurface differs ⓘ

this entity surface form: Extended Industry Standard Architecture

EISA → abbreviation → EISA self-link ⓘ

EISA → introducedBy → EISA self-linksurface differs ⓘ

this entity surface form: EISA consortium

EISA → standardizedBy → EISA self-linksurface differs ⓘ