PDP-5
E710904
The PDP-5 was an early 18-bit minicomputer introduced by Digital Equipment Corporation in the 1960s, notable as a predecessor to the influential PDP-8 and for helping establish the minicomputer market.
All labels observed (1)
| Label | Occurrences |
|---|---|
| PDP-5 canonical | 6 |
How this entity was disambiguated
This entity first appeared as the object of triple T7894611 — 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: PDP-5 Context triple: [PDP-7, relatedTo, PDP-5]
-
A.
PDP-4
The PDP-4 was an early 1960s 18-bit minicomputer from Digital Equipment Corporation that helped establish the PDP line in scientific and engineering computing.
-
B.
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.
-
C.
PDP-8
The PDP-8 is a pioneering 12-bit minicomputer introduced in the 1960s that became widely known for its low cost, compact size, and major role in popularizing minicomputers in industry and education.
-
D.
PDP-9
The PDP-9 was a 1960s 18-bit minicomputer from Digital Equipment Corporation that introduced advanced features and improved performance over its predecessors in the PDP series.
-
E.
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.
- 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: PDP-5 Target entity description: The PDP-5 was an early 18-bit minicomputer introduced by Digital Equipment Corporation in the 1960s, notable as a predecessor to the influential PDP-8 and for helping establish the minicomputer market.
-
A.
PDP-4
The PDP-4 was an early 1960s 18-bit minicomputer from Digital Equipment Corporation that helped establish the PDP line in scientific and engineering computing.
-
B.
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.
-
C.
PDP-8
The PDP-8 is a pioneering 12-bit minicomputer introduced in the 1960s that became widely known for its low cost, compact size, and major role in popularizing minicomputers in industry and education.
-
D.
PDP-9
The PDP-9 was a 1960s 18-bit minicomputer from Digital Equipment Corporation that introduced advanced features and improved performance over its predecessors in the PDP series.
-
E.
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.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf | minicomputer ⓘ |
| architectureType | 18-bit architecture ⓘ |
| brand |
DEC PDP
ⓘ
linked to:
PDP series minicomputers
|
| category | DEC 18-bit computers ⓘ |
| commercialStatus | commercially sold computer ⓘ |
| computerType | general-purpose computer ⓘ |
| countryOfOrigin |
United States
ⓘ
linked to:
United States of America
|
| cpuWordSize | 18 bits ⓘ |
| dataPathWidth | 18 bits ⓘ |
| designedBy | Digital Equipment Corporation engineers ⓘ |
| family | Programmed Data Processor ⓘ |
| historicalSignificance |
early commercial minicomputer
ⓘ
transition from large mainframes to smaller computers ⓘ |
| influenced | PDP-8 design ⓘ |
| instructionSetWidth | 18-bit instructions ⓘ |
| introducedBy | Digital Equipment Corporation ⓘ |
| introducedInYear | 1963 ⓘ |
| manufacturer | Digital Equipment Corporation ⓘ |
| marketSegment | minicomputer market ⓘ |
| memoryAddressWidth | 18 bits ⓘ |
| notableFor |
being a predecessor to the PDP-8
ⓘ
helping establish the minicomputer market ⓘ |
| partOfSeries | PDP series ⓘ |
| predecessorOf | PDP-8 ⓘ |
| successor | PDP-8 ⓘ |
| technologyEra | 1960s computers ⓘ |
| usage |
industrial control
ⓘ
laboratory control ⓘ scientific computing ⓘ |
| wordLength | 18-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: PDP-5 Description of subject: The PDP-5 was an early 18-bit minicomputer introduced by Digital Equipment Corporation in the 1960s, notable as a predecessor to the influential PDP-8 and for helping establish the minicomputer market.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.