EDSAC
E904646
EDSAC was one of the earliest stored-program electronic computers, built at the University of Cambridge in the late 1940s and used primarily for scientific and mathematical research.
All labels observed (1)
| Label | Occurrences |
|---|---|
| EDSAC canonical | 8 |
How this entity was disambiguated
This entity first appeared as the object of triple T11100823 — 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: EDSAC Context triple: [Maurice Wilkes, notableWork, EDSAC]
-
A.
EDVAC
EDVAC was one of the earliest electronic stored-program computers, pioneering the use of binary arithmetic and influencing the development of modern computer architecture.
-
B.
Ferranti Mark I computer
The Ferranti Mark I computer was one of the world’s first commercially available general-purpose electronic computers, developed in the early 1950s from the Manchester Mark I design.
-
C.
ORDVAC
ORDVAC was an early stored-program electronic computer built for the U.S. Army that helped pioneer modern computer architecture and numerical computation.
-
D.
UNIVAC I
UNIVAC I was one of the earliest commercial electronic computers, pioneering large-scale data processing for government and business in the early 1950s.
-
E.
IBM 704
The IBM 704 was a pioneering 1950s vacuum-tube mainframe computer notable for its support of floating-point arithmetic and its influential role in early high-level programming languages and computer architecture.
- 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: EDSAC Target entity description: EDSAC was one of the earliest stored-program electronic computers, built at the University of Cambridge in the late 1940s and used primarily for scientific and mathematical research.
-
A.
EDVAC
EDVAC was one of the earliest electronic stored-program computers, pioneering the use of binary arithmetic and influencing the development of modern computer architecture.
-
B.
Ferranti Mark I computer
The Ferranti Mark I computer was one of the world’s first commercially available general-purpose electronic computers, developed in the early 1950s from the Manchester Mark I design.
-
C.
ORDVAC
ORDVAC was an early stored-program electronic computer built for the U.S. Army that helped pioneer modern computer architecture and numerical computation.
-
D.
UNIVAC I
UNIVAC I was one of the earliest commercial electronic computers, pioneering large-scale data processing for government and business in the early 1950s.
-
E.
IBM 704
The IBM 704 was a pioneering 1950s vacuum-tube mainframe computer notable for its support of floating-point arithmetic and its influential role in early high-level programming languages and computer architecture.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
binary digital computer
ⓘ
early stored-program electronic computer ⓘ scientific computer ⓘ |
| architecture | von Neumann architecture ⓘ |
| basedOn | stored-program concept ⓘ |
| category |
British computer
ⓘ
early computer ⓘ university computer system ⓘ |
| clockSpeed | approximately 500 kHz ⓘ |
| completionYear | 1949 ⓘ |
| constructionStartYear | 1947 ⓘ |
| country | United Kingdom ⓘ |
| decommissionYear | 1958 ⓘ |
| developer |
Maurice Wilkes
ⓘ
University of Cambridge Mathematical Laboratory ⓘ |
| era | late 1940s ⓘ |
| firstRunDate | 1949-05-06 ⓘ |
| fullName | Electronic Delay Storage Automatic Calculator ⓘ |
| hadAssembler | yes ⓘ |
| hasReplicaProject | EDSAC reconstruction at The National Museum of Computing ⓘ |
| historicalSignificance |
helped establish practical computing as a research tool
ⓘ
influenced design of later British computers ⓘ |
| inputDevice | paper tape reader ⓘ |
| inspiredBy | EDVAC design ⓘ |
| locatedIn |
Cambridge, England
ⓘ
University of Cambridge ⓘ
linked to:
Cambridge University
|
| memoryType | mercury delay line memory ⓘ |
| museumDisplayLocation | The National Museum of Computing, Bletchley Park ⓘ |
| notableFor |
being among the first practical stored-program computers
ⓘ
early use in ballistics calculations ⓘ early use in computational biology ⓘ early use in numerical analysis ⓘ providing computing service to university researchers ⓘ |
| notableSoftware | one of the first assembly languages ⓘ |
| numberSystem | binary ⓘ |
| operatedBy | University of Cambridge Mathematical Laboratory ⓘ |
| operationalStatus | decommissioned ⓘ |
| outputDevice |
paper tape punch
ⓘ
teleprinter ⓘ |
| primaryUse |
mathematical research
ⓘ
scientific research ⓘ university research computing ⓘ |
| programmingLanguage | machine code ⓘ |
| region | Europe ⓘ |
| storageCapacity | initially 512 words ⓘ |
| successor | EDSAC 2 ⓘ |
| usedBy | researchers at the University of Cambridge ⓘ |
| wordLength | 17-bit word ⓘ |
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: EDSAC Description of subject: EDSAC was one of the earliest stored-program electronic computers, built at the University of Cambridge in the late 1940s and used primarily for scientific and mathematical research.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.