RSX-11
E229933
PDP-11 operating system
multi-user operating system
operating system family
real-time operating system
RSX-11 is a family of real-time, multi-user operating systems for PDP-11 minicomputers, widely used in industrial and embedded applications in the 1970s and 1980s.
All labels observed (4)
| Label | Occurrences |
|---|---|
| RSX-11 canonical | 4 |
| RSX-11D | 1 |
| RSX-11M | 1 |
| RSX-11M-PLUS | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2038720 — 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: RSX-11 Context triple: [Digital Equipment Corporation, operatingSystemDeveloped, RSX-11]
-
A.
Multics
Multics (Multiplexed Information and Computing Service) was an influential pioneering time-sharing operating system developed in the 1960s that introduced many concepts later adopted by modern operating systems, including Unix.
-
B.
PDP-11
The PDP-11 is a series of 16-bit minicomputers introduced by Digital Equipment Corporation in the 1970s that became highly influential in computer architecture and operating system development.
-
C.
PDP-7
The PDP-7 was a 1960s DEC minicomputer whose relatively low cost and flexible design made it popular in research labs and notable as the machine on which the first version of Unix was developed.
-
D.
Honeywell 316 minicomputer
The Honeywell 316 minicomputer was a small, 16-bit general-purpose computer from the late 1960s widely used in early networking and control applications.
-
E.
Apollo Computer
Apollo Computer was an American computer company best known for pioneering high-performance Domain workstation systems in the 1980s.
- 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: RSX-11 Target entity description: RSX-11 is a family of real-time, multi-user operating systems for PDP-11 minicomputers, widely used in industrial and embedded applications in the 1970s and 1980s.
-
A.
Multics
Multics (Multiplexed Information and Computing Service) was an influential pioneering time-sharing operating system developed in the 1960s that introduced many concepts later adopted by modern operating systems, including Unix.
-
B.
PDP-11
The PDP-11 is a series of 16-bit minicomputers introduced by Digital Equipment Corporation in the 1970s that became highly influential in computer architecture and operating system development.
-
C.
PDP-7
The PDP-7 was a 1960s DEC minicomputer whose relatively low cost and flexible design made it popular in research labs and notable as the machine on which the first version of Unix was developed.
-
D.
Honeywell 316 minicomputer
The Honeywell 316 minicomputer was a small, 16-bit general-purpose computer from the late 1960s widely used in early networking and control applications.
-
E.
Apollo Computer
Apollo Computer was an American computer company best known for pioneering high-performance Domain workstation systems in the 1980s.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
PDP-11 operating system
ⓘ
multi-user operating system ⓘ operating system family ⓘ real-time operating system ⓘ |
| abbreviationOf | Real-Time System Executive for the PDP-11 ⓘ |
| architecture | 16-bit ⓘ |
| designedFor | PDP-11 ⓘ |
| developer | Digital Equipment Corporation ⓘ |
| feature |
command-line interface
ⓘ
device-independent I/O system ⓘ file system with hierarchical directories ⓘ overlay support for large programs ⓘ preemptive multitasking ⓘ priority-based scheduling ⓘ privileged and non-privileged tasks ⓘ task-based process model ⓘ |
| influenced |
VMS
ⓘ
surface form:
VAX/VMS
other DEC real-time operating systems ⓘ |
| notableFor |
long operational lifetimes in embedded deployments
ⓘ
widespread industrial adoption ⓘ |
| operatingSystemFamilyMember |
IAS
ⓘ
Micro/RSX ⓘ RSX-11 self-linksurface differs ⓘ
surface form:
RSX-11D
RSX-11 self-linksurface differs ⓘ
surface form:
RSX-11M
RSX-11 self-linksurface differs ⓘ
surface form:
RSX-11M-PLUS
|
| supports |
multi-tasking
ⓘ
multi-user time-sharing ⓘ real-time applications ⓘ |
| supportsProgrammingLanguage |
BASIC
ⓘ
C ⓘ Fortran ⓘ MACRO-11 ⓘ Pascal ⓘ |
| supportsUserMode |
real-time control users
ⓘ
timesharing users ⓘ |
| targetHardware |
PDP-11
ⓘ
surface form:
PDP-11/20
PDP-11 ⓘ
surface form:
PDP-11/40
PDP-11 ⓘ
surface form:
PDP-11/45
PDP-11 ⓘ
surface form:
PDP-11/70
other PDP-11 models ⓘ |
| timePeriodOfWidespreadUse |
1970s
ⓘ
1980s ⓘ |
| usedIn |
aerospace systems
ⓘ
embedded systems ⓘ industrial control systems ⓘ laboratory automation ⓘ military systems ⓘ process control ⓘ telecommunications systems ⓘ |
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: RSX-11 Description of subject: RSX-11 is a family of real-time, multi-user operating systems for PDP-11 minicomputers, widely used in industrial and embedded applications in the 1970s and 1980s.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
RSX-11D
this entity surface form:
RSX-11M
this entity surface form:
RSX-11M-PLUS