IBM System/390
E193760
IBM System/390 is IBM’s family of 1990s mainframe computers that introduced 31-bit ESA/390 architecture and advanced enterprise computing features, forming the basis for later System z systems.
All labels observed (14)
| Label | Occurrences |
|---|---|
| IBM System/390 canonical | 17 |
| IBM S/390 | 3 |
| System/390 | 3 |
| IBM 360/370/390 family | 1 |
| IBM ESA/390 | 1 |
| IBM S/390 mainframe | 1 |
| IBM System/390 family | 1 |
| IBM System/390 line | 1 |
| IBM System/390 mainframes | 1 |
| S/390 | 1 |
| S/390 G-series models | 1 |
| S/390 H-series models | 1 |
| S/390 Parallel Enterprise Server | 1 |
| s390 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1718027 — 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: IBM System/390 Context triple: [IBM System z, predecessor, IBM System/390]
-
A.
IBM System z
IBM System z is IBM’s family of mainframe computers known for high reliability, scalability, and support for enterprise workloads, including running Linux at large scale.
-
B.
IBM System/370
IBM System/370 is a family of IBM mainframe computers introduced in the 1970s that extended and modernized the System/360 architecture while maintaining backward compatibility.
-
C.
IBM System/360
IBM System/360 is a landmark family of mainframe computers introduced in the 1960s that standardized computer architecture and revolutionized business and scientific computing.
-
D.
OS/360
OS/360 is IBM's landmark mainframe operating system introduced in the 1960s for the System/360 family, known for pioneering modern concepts in batch processing, multiprogramming, and system software design.
-
E.
IBM 700/7000 series
The IBM 700/7000 series was a family of early large-scale mainframe computers from the 1950s and early 1960s that played a key role in scientific, engineering, and business computing before the advent of more standardized systems.
- 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: IBM System/390 Target entity description: IBM System/390 is IBM’s family of 1990s mainframe computers that introduced 31-bit ESA/390 architecture and advanced enterprise computing features, forming the basis for later System z systems.
-
A.
IBM System z
IBM System z is IBM’s family of mainframe computers known for high reliability, scalability, and support for enterprise workloads, including running Linux at large scale.
-
B.
IBM System/370
IBM System/370 is a family of IBM mainframe computers introduced in the 1970s that extended and modernized the System/360 architecture while maintaining backward compatibility.
-
C.
IBM System/360
IBM System/360 is a landmark family of mainframe computers introduced in the 1960s that standardized computer architecture and revolutionized business and scientific computing.
-
D.
OS/360
OS/360 is IBM's landmark mainframe operating system introduced in the 1960s for the System/360 family, known for pioneering modern concepts in batch processing, multiprogramming, and system software design.
-
E.
IBM 700/7000 series
The IBM 700/7000 series was a family of early large-scale mainframe computers from the 1950s and early 1960s that played a key role in scientific, engineering, and business computing before the advent of more standardized systems.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
IBM computer system
ⓘ
mainframe computer family ⓘ |
| architecture | ESA/390 ⓘ |
| basedOnArchitecture | IBM 370 architecture lineage ⓘ |
| brand |
IBM S/390
ⓘ
linked to:
IBM System/390
|
| compatibility | backward compatible with System/370 software ⓘ |
| countryOfOrigin |
United States
ⓘ
linked to:
United States of America
|
| decadeOfProminence | 1990s ⓘ |
| developer | IBM ⓘ |
| feature |
advanced I/O subsystem
ⓘ
channel architecture ⓘ enterprise reliability ⓘ hardware security features ⓘ high availability ⓘ scalability ⓘ |
| followedBy |
IBM System z
ⓘ
IBM zSeries ⓘ
linked to:
IBM System z
|
| formsBasisFor |
IBM System z architecture
ⓘ
linked to:
z/Architecture
|
| instructionSetArchitecture | IBM ESA/390 ISA ⓘ |
| introduced | 1990 ⓘ |
| manufacturer | IBM ⓘ |
| market |
business-critical computing
ⓘ
enterprise computing ⓘ |
| notableFor |
enterprise-class RAS (reliability, availability, serviceability)
ⓘ
transition platform to 64-bit z/Architecture ⓘ |
| operatingSystemSupport |
Linux on S/390
ⓘ
MVS ⓘ OS/390 ⓘ VM/ESA ⓘ
linked to:
z/VM
VSE/ESA ⓘ |
| precededBy | IBM System/370 ⓘ |
| productLineIncludes |
S/390 G-series models
ⓘ
linked to:
IBM System/390
S/390 H-series models ⓘ
linked to:
IBM System/390
S/390 Parallel Enterprise Server ⓘ
linked to:
IBM System/390
|
| supports |
24-bit addressing mode
ⓘ
31-bit addressing mode ⓘ batch processing ⓘ hardware-assisted virtualization ⓘ large-scale database workloads ⓘ logical partitioning ⓘ online transaction processing (OLTP) ⓘ transaction processing ⓘ virtualization ⓘ |
| targetIndustry |
financial services
ⓘ
government computing ⓘ large enterprises ⓘ |
| wordSize | 31-bit ⓘ |
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: IBM System/390 Description of subject: IBM System/390 is IBM’s family of 1990s mainframe computers that introduced 31-bit ESA/390 architecture and advanced enterprise computing features, forming the basis for later System z systems.
Referenced by (34)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: IBM System/390
linked to: IBM System/390
linked to: IBM System/390
linked to: IBM System/390
linked to: IBM System/390
linked to: IBM System/390
linked to: IBM System/390
linked to: IBM System/390
linked to: IBM System/390
linked to: IBM System/390
linked to: IBM System/390
linked to: IBM System/390
linked to: IBM System/390
linked to: IBM System/390
linked to: IBM System/390