DRAM
E201374
DRAM (Dynamic Random-Access Memory) is a type of volatile semiconductor memory widely used as the main system memory in computers and other digital devices due to its high density and relatively low cost.
All labels observed (6)
How this entity was disambiguated
This entity first appeared as the object of triple T1797411 — 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: DRAM Context triple: [Valee, associatedWith, DRAM]
-
A.
DDR
DDR is the commonly used German abbreviation for the former socialist state officially known as the German Democratic Republic (East Germany), which existed from 1949 to 1990.
-
B.
RAM
RAM is the ICAO airline designator used to identify Royal Air Maroc in international aviation operations and communications.
-
C.
DMA
DMA (Direct Memory Access) is a computer feature that allows hardware devices to transfer data directly to and from system memory without continuous CPU involvement, improving performance and efficiency.
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D.
Monolithic Memories
Monolithic Memories was a semiconductor company known for developing programmable read-only memory (PROM) and logic devices after being spun off from Fairchild Semiconductor.
-
E.
Mem
Mem is the thirteenth letter of the Hebrew alphabet, representing the "m" sound and having both standard and final written forms.
- 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: DRAM Target entity description: DRAM (Dynamic Random-Access Memory) is a type of volatile semiconductor memory widely used as the main system memory in computers and other digital devices due to its high density and relatively low cost.
-
A.
DDR
DDR is the commonly used German abbreviation for the former socialist state officially known as the German Democratic Republic (East Germany), which existed from 1949 to 1990.
-
B.
RAM
RAM is the ICAO airline designator used to identify Royal Air Maroc in international aviation operations and communications.
-
C.
DMA
DMA (Direct Memory Access) is a computer feature that allows hardware devices to transfer data directly to and from system memory without continuous CPU involvement, improving performance and efficiency.
-
D.
Monolithic Memories
Monolithic Memories was a semiconductor company known for developing programmable read-only memory (PROM) and logic devices after being spun off from Fairchild Semiconductor.
-
E.
Mem
Mem is the thirteenth letter of the Hebrew alphabet, representing the "m" sound and having both standard and final written forms.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
random-access memory
ⓘ
semiconductor memory ⓘ volatile memory type ⓘ |
| abbreviationFor | Dynamic Random-Access Memory ⓘ |
| accessGranularity | row-based access ⓘ |
| accessType | random access ⓘ |
| advantage |
high capacity for given chip area
ⓘ
relatively low cost per bit ⓘ |
| cellStructure | one transistor and one capacitor per bit ⓘ |
| commonFormFactor |
DIMM
ⓘ
SO-DIMM ⓘ |
| comparedToSRAM |
higher bit density
ⓘ
lower manufacturing cost per bit ⓘ simpler cell structure ⓘ slower access time ⓘ |
| dataBusConnection | connected to system memory bus ⓘ |
| dataRetentionWithoutPower | very short ⓘ |
| disadvantage |
data loss on power-off
ⓘ
higher latency than SRAM ⓘ need for constant refresh ⓘ |
| errorHandlingOption | ECC (Error-Correcting Code) ⓘ |
| fullName |
DRAM
self-linksurface differs
ⓘ
surface form:
Dynamic Random-Access Memory
|
| interfaceStandard | JEDEC standards ⓘ |
| isVolatile | true ⓘ |
| nonVolatile | false ⓘ |
| organization | rows and columns in memory arrays ⓘ |
| powerCharacteristic | requires continuous power to retain data ⓘ |
| primaryUse |
main memory in digital devices
ⓘ
main system memory in computers ⓘ |
| refreshOperation | periodic reading and rewriting of stored data ⓘ |
| refreshReason | capacitor charge leakage ⓘ |
| relativeCost | lower cost per bit than SRAM ⓘ |
| relativeDensity | higher density than SRAM ⓘ |
| requires | memory controller ⓘ |
| requiresRefresh | true ⓘ |
| storesDataAs | charge in capacitors ⓘ |
| technologyType | capacitor-based memory ⓘ |
| timingParameter |
CAS latency
ⓘ
RAS-to-CAS delay ⓘ row precharge time ⓘ |
| typicalLocation | motherboard memory slots ⓘ |
| usedAs | working memory for CPUs ⓘ |
| usedIn |
embedded systems
ⓘ
game consoles ⓘ laptops ⓘ mobile devices ⓘ personal computers ⓘ servers ⓘ |
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: DRAM Description of subject: DRAM (Dynamic Random-Access Memory) is a type of volatile semiconductor memory widely used as the main system memory in computers and other digital devices due to its high density and relatively low cost.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
DDR SDRAM
this entity surface form:
LPDDR2
this entity surface form:
Dynamic Random-Access Memory
this entity surface form:
ST-RAM
this entity surface form:
TT-RAM