System M
E79686
System M is the analog television broadcasting system used in NTSC countries, characterized by 525 lines per frame and a 60 Hz field rate.
All labels observed (1)
| Label | Occurrences |
|---|---|
| System M canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T634400 — 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: System M Context triple: [NTSC color television standard, lineStandard, System M]
-
A.
System1
System1 is a digital marketing and customer acquisition company specializing in data-driven advertising and online performance-based media.
-
B.
OS/360
OS/360 is IBM's landmark mainframe operating system introduced in the 1960s for the System/360 family, known for pioneering modern concepts in batch processing, multiprogramming, and system software design.
-
C.
SINTRAN
SINTRAN is a real-time, multitasking operating system developed by Norsk Data for its NORD series of minicomputers.
-
D.
IBM System/360
IBM System/360 is a landmark family of mainframe computers introduced in the 1960s that standardized computer architecture and revolutionized business and scientific computing.
-
E.
VMS
VMS is a regional public transport association in the Chemnitz area of Germany that coordinates and manages integrated fares and services across multiple transit operators.
- 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: System M Target entity description: System M is the analog television broadcasting system used in NTSC countries, characterized by 525 lines per frame and a 60 Hz field rate.
-
A.
System1
System1 is a digital marketing and customer acquisition company specializing in data-driven advertising and online performance-based media.
-
B.
OS/360
OS/360 is IBM's landmark mainframe operating system introduced in the 1960s for the System/360 family, known for pioneering modern concepts in batch processing, multiprogramming, and system software design.
-
C.
SINTRAN
SINTRAN is a real-time, multitasking operating system developed by Norsk Data for its NORD series of minicomputers.
-
D.
IBM System/360
IBM System/360 is a landmark family of mainframe computers introduced in the 1960s that standardized computer architecture and revolutionized business and scientific computing.
-
E.
VMS
VMS is a regional public transport association in the Chemnitz area of Germany that coordinates and manages integrated fares and services across multiple transit operators.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf | analog television broadcasting system ⓘ |
| alsoKnownAs |
NTSC System M
ⓘ
linked to:
NTSC color television standard
|
| audioCarrierOffset | 4.5 MHz above video carrier ⓘ |
| audioModulationType | frequency modulation (FM) ⓘ |
| category | television transmission standard ⓘ |
| channelBandwidth | 6 MHz ⓘ |
| colorSubcarrierFrequency | approximately 3.579545 MHz (with NTSC color) ⓘ |
| colorSystemCompatibleWith |
NTSC color encoding
ⓘ
linked to:
NTSC color television standard
|
| fieldFrequency | 59.94 Hz in color NTSC implementations ⓘ |
| fieldRate | 60 Hz ⓘ |
| fieldsPerFrame | 2 ⓘ |
| fieldsPerSecond | 60 ⓘ |
| frameRate | 30 frames per second (approximately) ⓘ |
| interlaced | true ⓘ |
| introducedInDecade | 1940s ⓘ |
| linesPerFrame | 525 ⓘ |
| lineStandard | 525-line system ⓘ |
| region | ITU Region 2 (primarily) ⓘ |
| scanStandard | 525-line interlaced ⓘ |
| scanType | interlaced scan ⓘ |
| standardizedBy |
National Television System Committee
ⓘ
linked to:
NTSC color television standard
|
| supersededBy |
digital television standards such as ATSC
ⓘ
digital television standards such as DVB-T ⓘ digital television standards such as ISDB-T ⓘ |
| usedFor |
analog cable television distribution
ⓘ
analog terrestrial television broadcasting ⓘ |
| usedIn |
Argentina
ⓘ
Bolivia ⓘ Brazil ⓘ Canada ⓘ Caribbean countries using NTSC ⓘ Central American countries using NTSC ⓘ Chile ⓘ Colombia ⓘ Ecuador ⓘ Japan ⓘ Mexico ⓘ NTSC countries ⓘ
linked to:
United States and Canada
Paraguay ⓘ Peru ⓘ Philippines ⓘ South Korea ⓘ Taiwan ⓘ
linked to:
Formosa
United States ⓘ
linked to:
United States of America
Uruguay ⓘ Venezuela ⓘ |
| videoBandwidth | about 4.2 MHz ⓘ |
| videoModulationType | amplitude modulation (AM) with vestigial sideband ⓘ |
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: System M Description of subject: System M is the analog television broadcasting system used in NTSC countries, characterized by 525 lines per frame and a 60 Hz field rate.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.