Williams tube
E412992
The Williams tube was an early form of computer memory that used a cathode-ray tube to store binary data as electrostatic charges on a phosphor-coated screen.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Williams tube canonical | 2 |
| Williams tube memory | 2 |
| Williams tube electrostatic memory | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4093922 — 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: Williams tube Context triple: [IAS machine, memoryType, Williams tube]
-
A.
Kammersrohr
Kammersrohr is a small municipality in the Swiss canton of Solothurn, known as one of the least populous communes in Switzerland.
-
B.
Fleming valve
The Fleming valve is an early thermionic vacuum tube diode invented by John Ambrose Fleming that enabled the rectification and detection of radio signals, laying groundwork for modern electronics.
-
C.
Geiger–Müller tube
A Geiger–Müller tube is a gas-filled radiation detector used to measure ionizing particles such as alpha, beta, and gamma radiation.
-
D.
Wurlitzer theatre organ
The Wurlitzer theatre organ is a large, pipe-based musical instrument designed in the early 20th century to provide dramatic sound effects and accompaniment for silent films and live performances in movie palaces and theatres.
-
E.
Tubal
Tubal is a biblical people or region often identified with ancient Anatolian tribes and mentioned alongside Gog and Magog in prophetic texts.
- 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: Williams tube Target entity description: The Williams tube was an early form of computer memory that used a cathode-ray tube to store binary data as electrostatic charges on a phosphor-coated screen.
-
A.
Kammersrohr
Kammersrohr is a small municipality in the Swiss canton of Solothurn, known as one of the least populous communes in Switzerland.
-
B.
Fleming valve
The Fleming valve is an early thermionic vacuum tube diode invented by John Ambrose Fleming that enabled the rectification and detection of radio signals, laying groundwork for modern electronics.
-
C.
Geiger–Müller tube
A Geiger–Müller tube is a gas-filled radiation detector used to measure ionizing particles such as alpha, beta, and gamma radiation.
-
D.
Wurlitzer theatre organ
The Wurlitzer theatre organ is a large, pipe-based musical instrument designed in the early 20th century to provide dramatic sound effects and accompaniment for silent films and live performances in movie palaces and theatres.
-
E.
Tubal
Tubal is a biblical people or region often identified with ancient Anatolian tribes and mentioned alongside Gog and Magog in prophetic texts.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
cathode-ray tube memory
ⓘ
computer memory device ⓘ electrostatic memory ⓘ random-access memory ⓘ |
| accessType | random access ⓘ |
| alsoKnownAs | Williams–Kilburn tube ⓘ |
| basedOn | cathode-ray tube ⓘ |
| componentOf | CPU memory subsystem ⓘ |
| countryOfOrigin | United Kingdom ⓘ |
| dataRepresentation |
dots on screen
ⓘ
spots of charge ⓘ |
| developedAt | University of Manchester ⓘ |
| developedBy |
Frederic C. Williams
ⓘ
Tom Kilburn ⓘ |
| era | first-generation computers ⓘ |
| field |
computer engineering
ⓘ
computer memory technology ⓘ |
| firstOperationalUse | 1948 ⓘ |
| followedBy | magnetic core memory ⓘ |
| historicalSignificance | first practical random-access digital storage device ⓘ |
| influenced | design of later memory systems ⓘ |
| inventionPeriod | late 1940s ⓘ |
| limitation |
limited storage capacity
ⓘ
reliability issues ⓘ susceptible to electrical noise ⓘ |
| operatesOn | electrostatic charge distribution ⓘ |
| precededBy | mercury delay line memory ⓘ |
| preservedIn | computer history museums ⓘ |
| primaryFunction | main memory ⓘ |
| readoutMethod | sensing secondary emission current ⓘ |
| requires |
high-voltage power supply
ⓘ
precise beam deflection circuitry ⓘ refresh cycles ⓘ |
| status | obsolete ⓘ |
| storageMechanism | electrostatic charge patterns ⓘ |
| stores | binary data ⓘ |
| storesBitsAs | charged and uncharged spots ⓘ |
| technologyType | vacuum tube technology ⓘ |
| usedFor |
storing numerical data
ⓘ
storing program instructions ⓘ |
| usedIn |
Manchester Baby
ⓘ
Manchester Mark 1 ⓘ early stored-program computers ⓘ |
| uses | phosphor-coated screen ⓘ |
| writeMethod | electron beam positioning ⓘ |
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: Williams tube Description of subject: The Williams tube was an early form of computer memory that used a cathode-ray tube to store binary data as electrostatic charges on a phosphor-coated screen.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Ferranti Mark I
this entity surface form:
Williams tube memory
this entity surface form:
Williams tube memory
this entity surface form:
Williams tube electrostatic memory