z/OS
E41049
z/OS is IBM’s 64-bit mainframe operating system designed for high-volume, secure, and reliable enterprise computing workloads.
All labels observed (8)
| Label | Occurrences |
|---|---|
| z/OS canonical | 30 |
| IBM z/OS | 9 |
| z/OS UNIX System Services | 3 |
| z/OS operating system | 2 |
| C on z/OS | 1 |
| IBM z/OS Security | 1 |
| TSO/E | 1 |
| z/OS operating system environment | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T307552 — 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: z/OS Context triple: [IBM WebSphere, runsOn, z/OS]
-
A.
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.
-
B.
IBM i
IBM i is IBM’s integrated operating system for its Power Systems servers, known for its built-in database, high reliability, and strong support for enterprise applications.
-
C.
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.
-
D.
AIX
AIX is IBM’s proprietary Unix operating system designed for enterprise servers and high-reliability, scalable computing environments.
-
E.
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.
- 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: z/OS Target entity description: z/OS is IBM’s 64-bit mainframe operating system designed for high-volume, secure, and reliable enterprise computing workloads.
-
A.
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.
-
B.
IBM i
IBM i is IBM’s integrated operating system for its Power Systems servers, known for its built-in database, high reliability, and strong support for enterprise applications.
-
C.
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.
-
D.
AIX
AIX is IBM’s proprietary Unix operating system designed for enterprise servers and high-reliability, scalable computing environments.
-
E.
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.
- F. None of above. chosen
Statements (78)
| Predicate | Object |
|---|---|
| instanceOf |
IBM mainframe operating system
ⓘ
operating system ⓘ |
| architecture | 64-bit ⓘ |
| designedFor |
high-volume workloads
ⓘ
reliable workloads ⓘ secure workloads ⓘ |
| developer | IBM ⓘ |
| family | MVS ⓘ |
| feature |
capacity on demand
ⓘ
encryption at rest ⓘ encryption in transit ⓘ fault tolerance ⓘ hardware cryptography integration ⓘ high availability ⓘ scalability ⓘ security ⓘ workload isolation ⓘ |
| includes |
JES2
ⓘ
JES3 ⓘ Resource Measurement Facility ⓘ System Management Facilities ⓘ IBM Tivoli management software ⓘ
surface form:
Workload Manager
z/OS Communications Server ⓘ z/OS Management Facility ⓘ z/OS self-linksurface differs ⓘ
surface form:
z/OS UNIX System Services
|
| introduced | early 2000s ⓘ |
| licenseModel | proprietary ⓘ |
| platform |
IBM System z
ⓘ
surface form:
IBM Z
IBM System z ⓘ
surface form:
System z
IBM System z ⓘ
surface form:
zSeries
|
| predecessor | OS/390 ⓘ |
| replaced | OS/390 ⓘ |
| runsOn |
z/Architecture
ⓘ
surface form:
IBM Z processors
IBM System z ⓘ
surface form:
IBM mainframes
|
| securityComponent | RACF ⓘ |
| supports |
Assembler
ⓘ
C ⓘ C++ ⓘ CICS Transaction Server ⓘ COBOL ⓘ IBM DB2 ⓘ
surface form:
Db2 for z/OS
IMS ⓘ JES2 ⓘ JES3 ⓘ Java ⓘ IBM MQ ⓘ
surface form:
MQ for z/OS
PL/I ⓘ POSIX-compliant UNIX environment ⓘ Sysplex ⓘ
surface form:
Parallel Sysplex
RACF ⓘ RMF ⓘ PL/I ⓘ
surface form:
Rexx
SMF ⓘ Sysplex ⓘ TCP/IP networking ⓘ VTAM networking ⓘ WLM ⓘ batch processing ⓘ high-volume transaction processing ⓘ online transaction processing ⓘ virtualization ⓘ workload management ⓘ z/OS Communications Server ⓘ z/OS Management Facility ⓘ z/OS self-linksurface differs ⓘ
surface form:
z/OS UNIX System Services
z/OSMF web-based management ⓘ |
| supportsStandard |
IPSec
ⓘ
IPv4 ⓘ IPv6 ⓘ POSIX ⓘ TCP/IP ⓘ TLS ⓘ |
| targetUse |
enterprise computing
ⓘ
financial services workloads ⓘ government workloads ⓘ large-scale transaction systems ⓘ mission-critical workloads ⓘ |
| vendor | IBM ⓘ |
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: z/OS Description of subject: z/OS is IBM’s 64-bit mainframe operating system designed for high-volume, secure, and reliable enterprise computing workloads.
Referenced by (48)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
IBM Db2
this entity surface form:
z/OS UNIX System Services
this entity surface form:
z/OS UNIX System Services
this entity surface form:
IBM z/OS
this entity surface form:
TSO/E
this entity surface form:
IBM z/OS
this entity surface form:
z/OS UNIX System Services
this entity surface form:
IBM z/OS Security
this entity surface form:
IBM z/OS
this entity surface form:
z/OS operating system
this entity surface form:
C on z/OS
this entity surface form:
z/OS operating system