Plan 9 from Bell Labs
E162097
Plan 9 from Bell Labs is a distributed operating system developed at Bell Labs as a successor to Unix, emphasizing a unified file-oriented approach to all system resources.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Plan 9 from Bell Labs canonical | 7 |
| Plan 9 | 3 |
| Plan 9 namespace model | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1413068 — 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: Plan 9 from Bell Labs Context triple: [Ken Thompson, coCreatorOf, Plan 9 from Bell Labs]
-
A.
GNU Hurd
GNU Hurd is the GNU Project’s microkernel-based operating system server collection intended as a free Unix-like replacement, built to run on top of the Mach microkernel.
-
B.
Algol W
Algol W is a block-structured, high-level programming language designed by Niklaus Wirth as a successor to ALGOL 60, incorporating features that influenced the later development of Pascal and other languages.
-
C.
UCSD p-System
UCSD p-System is a portable operating system and programming environment based on the Pascal language and p-code virtual machine, widely used in the late 1970s and early 1980s across multiple hardware platforms.
-
D.
Squeak programming system
The Squeak programming system is an open-source, multimedia-capable implementation of the Smalltalk language designed for educational use, rapid prototyping, and exploratory programming.
-
E.
The GNU Manifesto
The GNU Manifesto is Richard Stallman’s foundational essay outlining the philosophy, goals, and rationale for the free software movement and the GNU Project.
- 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: Plan 9 from Bell Labs Target entity description: Plan 9 from Bell Labs is a distributed operating system developed at Bell Labs as a successor to Unix, emphasizing a unified file-oriented approach to all system resources.
-
A.
GNU Hurd
GNU Hurd is the GNU Project’s microkernel-based operating system server collection intended as a free Unix-like replacement, built to run on top of the Mach microkernel.
-
B.
Algol W
Algol W is a block-structured, high-level programming language designed by Niklaus Wirth as a successor to ALGOL 60, incorporating features that influenced the later development of Pascal and other languages.
-
C.
UCSD p-System
UCSD p-System is a portable operating system and programming environment based on the Pascal language and p-code virtual machine, widely used in the late 1970s and early 1980s across multiple hardware platforms.
-
D.
Squeak programming system
The Squeak programming system is an open-source, multimedia-capable implementation of the Smalltalk language designed for educational use, rapid prototyping, and exploratory programming.
-
E.
The GNU Manifesto
The GNU Manifesto is Richard Stallman’s foundational essay outlining the philosophy, goals, and rationale for the free software movement and the GNU Project.
- F. None of above. chosen
Statements (52)
| Predicate | Object |
|---|---|
| instanceOf |
distributed operating system
ⓘ
research operating system ⓘ |
| alternativeName |
Plan 9 from Bell Labs
ⓘ
surface form:
Plan 9
|
| architecture | distributed ⓘ |
| basedOn | Unix ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| designedAsSuccessorTo | Unix ⓘ |
| developer |
Bell Telephone Laboratories
ⓘ
surface form:
AT&T Bell Laboratories
Bell Telephone Laboratories ⓘ
surface form:
Bell Labs
Dave Presotto ⓘ Dennis Ritchie ⓘ Ken Thompson ⓘ Phil Winterbottom ⓘ Rob Pike ⓘ |
| inception |
1987
ⓘ
late 1980s ⓘ |
| includesComponent |
acme text editor
ⓘ
plumber interprocess communication service ⓘ rio window system ⓘ sam text editor ⓘ |
| influenced |
Go programming language tooling culture
ⓘ
Inferno operating system ⓘ Linux /proc file system ⓘ namespaces in modern operating systems ⓘ |
| influencedBy | Unix design philosophy ⓘ |
| initialRelease |
1992
ⓘ
early 1990s ⓘ |
| kernelType | microkernel-like ⓘ |
| keyConcept |
/proc process file system
ⓘ
9P network protocol ⓘ everything is a file ⓘ file-oriented interface to all resources ⓘ per-process name spaces ⓘ |
| license |
Lucent Public License
ⓘ
open source license ⓘ |
| namedAfter |
Plan 9 from Outer Space
ⓘ
surface form:
Plan 9 from Outer Space (1959 film)
|
| networkProtocol | 9P ⓘ |
| notableFeature |
lightweight terminals connected to central servers
ⓘ
uniform file system interface for devices ⓘ |
| notableRelease | Fourth Edition ⓘ |
| operatingSystemFamily | Unix-like operating system ⓘ |
| programmingLanguage | C ⓘ |
| sourceModel |
later open source
ⓘ
originally proprietary ⓘ |
| supports |
distributed computing
ⓘ
transparent resource sharing over a network ⓘ |
| targetHardware |
MIPS
ⓘ
PowerPC ⓘ SPARC microprocessor architecture ⓘ
surface form:
SPARC
x86 ⓘ |
| userInterface | rio window system ⓘ |
| website | https://9p.io/plan9/ ⓘ |
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: Plan 9 from Bell Labs Description of subject: Plan 9 from Bell Labs is a distributed operating system developed at Bell Labs as a successor to Unix, emphasizing a unified file-oriented approach to all system resources.
Referenced by (11)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Plan 9
this entity surface form:
Plan 9
this entity surface form:
Plan 9 namespace model