Amdahl Corporation
E785750
Amdahl Corporation was a pioneering American computer company best known for producing IBM-compatible mainframe systems that challenged IBM’s dominance in the 1970s and 1980s.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Amdahl Corporation canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9143119 — 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: Amdahl Corporation Context triple: [Trilogy Systems, associatedWith, Amdahl Corporation]
-
A.
Amdahl
Amdahl is the surname of Gene Amdahl, a pioneering computer architect best known for formulating Amdahl's Law and contributing to the design of IBM mainframe systems.
-
B.
Cray Inc.
Cray Inc. is an American company renowned for designing and building high-performance supercomputers used in scientific research, government, and industry.
-
C.
Evans & Sutherland Computer Corporation
Evans & Sutherland Computer Corporation is a pioneering American company in computer graphics and simulation technology, known for its advanced visual systems and contributions to virtual reality and flight simulation.
-
D.
Zilog
Zilog is an American microprocessor company best known for creating the influential Z80 CPU, widely used in early personal computers and embedded systems.
-
E.
Oberon Microsystems
Oberon Microsystems is a Swiss software company known for its work on the Oberon family of languages and systems, including the development of the Component Pascal programming language.
- 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: Amdahl Corporation Target entity description: Amdahl Corporation was a pioneering American computer company best known for producing IBM-compatible mainframe systems that challenged IBM’s dominance in the 1970s and 1980s.
-
A.
Amdahl
Amdahl is the surname of Gene Amdahl, a pioneering computer architect best known for formulating Amdahl's Law and contributing to the design of IBM mainframe systems.
-
B.
Cray Inc.
Cray Inc. is an American company renowned for designing and building high-performance supercomputers used in scientific research, government, and industry.
-
C.
Evans & Sutherland Computer Corporation
Evans & Sutherland Computer Corporation is a pioneering American company in computer graphics and simulation technology, known for its advanced visual systems and contributions to virtual reality and flight simulation.
-
D.
Zilog
Zilog is an American microprocessor company best known for creating the influential Z80 CPU, widely used in early personal computers and embedded systems.
-
E.
Oberon Microsystems
Oberon Microsystems is a Swiss software company known for its work on the Oberon family of languages and systems, including the development of the Component Pascal programming language.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
computer company
ⓘ
defunct company ⓘ technology company ⓘ |
| acquiredBy |
Fujitsu
ⓘ
linked to:
Fujitsu Limited
|
| businessModel | plug-compatible mainframe vendor ⓘ |
| competitor | IBM ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| countryOfHeadquarters |
United States
ⓘ
linked to:
United States of America
|
| era |
1970s
ⓘ
1980s ⓘ |
| foundedByFormerEmployeeOf | IBM ⓘ |
| founder | Gene Amdahl ⓘ |
| headquartersLocation |
Silicon Valley
ⓘ
Sunnyvale, California ⓘ
linked to:
Sunnyvale, California, United States
|
| historicalRole |
major IBM plug-compatible mainframe vendor
ⓘ
pioneer in IBM-compatible mainframes ⓘ |
| industry |
computer hardware
ⓘ
information technology ⓘ mainframe computers ⓘ |
| keyPerson | Gene Amdahl ⓘ |
| knownFor |
IBM-compatible mainframe computers
ⓘ
challenging IBM mainframe dominance ⓘ |
| majorShareholder |
Fujitsu
ⓘ
linked to:
Fujitsu Limited
|
| market |
data centers
ⓘ
enterprise computing ⓘ |
| namedAfter | Gene Amdahl ⓘ |
| notableContribution |
increasing competition in mainframe market
ⓘ
offering lower-cost alternatives to IBM mainframes ⓘ |
| parentCompany |
Fujitsu
ⓘ
linked to:
Fujitsu Limited
|
| product |
Amdahl 470 series
ⓘ
linked to:
Amdahl
IBM-compatible systems ⓘ plug-compatible mainframes ⓘ |
| regionServed |
Asia
ⓘ
Europe ⓘ North America ⓘ global ⓘ |
| segment |
enterprise hardware
ⓘ
systems integration ⓘ |
| state |
California
ⓘ
linked to:
California, United States
|
| status | defunct ⓘ |
| technologyFocus |
high-performance computing
ⓘ
large-scale mainframe systems ⓘ |
| type | public company ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Amdahl Corporation Description of subject: Amdahl Corporation was a pioneering American computer company best known for producing IBM-compatible mainframe systems that challenged IBM’s dominance in the 1970s and 1980s.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.