Ricoh 2A03
E491810
The Ricoh 2A03 is an 8-bit microprocessor derived from the MOS Technology 6502 that powered the Nintendo Entertainment System and integrated both CPU and audio functions.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Ricoh 2A03 canonical | 5 |
| CPU Ricoh 2A03 | 1 |
| Ricoh 2A07 | 1 |
| Ricoh 2A0x | 1 |
| Ricoh 2C33 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5079727 — 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: Ricoh 2A03 Context triple: [Nintendo Entertainment System, cpu, Ricoh 2A03]
-
A.
Sharp X68000
The Sharp X68000 is a Japanese home computer and gaming system from the late 1980s and early 1990s, renowned for its advanced graphics and sound capabilities that made it a premier platform for high-quality arcade game ports.
-
B.
Sega Master System
The Sega Master System is an 8-bit home video game console developed by Sega and released in the mid-1980s as its primary competitor to Nintendo’s NES.
-
C.
Commodore 64
The Commodore 64 is an iconic 8-bit home computer from the 1980s, renowned for its widespread popularity, distinctive sound and graphics capabilities, and extensive library of games and software.
-
D.
Atari 7800
The Atari 7800 is a third-generation home video game console released by Atari in the mid-1980s as the successor to the Atari 5200, featuring improved graphics and backward compatibility with most Atari 2600 games.
-
E.
Atari 8-bit family
The Atari 8-bit family is a series of home computers released by Atari in the late 1970s and 1980s, known for their advanced graphics and sound capabilities for the time and a rich library of games and productivity software.
- 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: Ricoh 2A03 Target entity description: The Ricoh 2A03 is an 8-bit microprocessor derived from the MOS Technology 6502 that powered the Nintendo Entertainment System and integrated both CPU and audio functions.
-
A.
Sharp X68000
The Sharp X68000 is a Japanese home computer and gaming system from the late 1980s and early 1990s, renowned for its advanced graphics and sound capabilities that made it a premier platform for high-quality arcade game ports.
-
B.
Sega Master System
The Sega Master System is an 8-bit home video game console developed by Sega and released in the mid-1980s as its primary competitor to Nintendo’s NES.
-
C.
Commodore 64
The Commodore 64 is an iconic 8-bit home computer from the 1980s, renowned for its widespread popularity, distinctive sound and graphics capabilities, and extensive library of games and software.
-
D.
Atari 7800
The Atari 7800 is a third-generation home video game console released by Atari in the mid-1980s as the successor to the Atari 5200, featuring improved graphics and backward compatibility with most Atari 2600 games.
-
E.
Atari 8-bit family
The Atari 8-bit family is a series of home computers released by Atari in the late 1970s and 1980s, known for their advanced graphics and sound capabilities for the time and a rich library of games and productivity software.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
8-bit microprocessor
ⓘ
audio processing unit ⓘ microprocessor ⓘ |
| addressBusWidth | 16-bit ⓘ |
| architecture | 6502-compatible ⓘ |
| audioChannelCount | 5 ⓘ |
| audioChannelType |
DPCM channel
ⓘ
noise channel ⓘ pulse wave channel ⓘ triangle wave channel ⓘ |
| audioOutput | mono analog audio signal ⓘ |
| clockSource | NTSC master clock divided down ⓘ |
| compatibleWith |
Ricoh 2A07
ⓘ
linked to:
Ricoh 2A03
|
| dataWidth | 8-bit ⓘ |
| derivedFrom | MOS Technology 6502 ⓘ |
| designedFor | Nintendo Entertainment System game cartridges ⓘ |
| endianess | little-endian ⓘ |
| era | 1980s ⓘ |
| family |
Ricoh 2A0x
ⓘ
linked to:
Ricoh 2A03
|
| hasComponent |
DMA controller for sprite transfer
ⓘ
audio processing unit ⓘ interrupt controller ⓘ |
| hasRegister |
accumulator
ⓘ
index register X ⓘ index register Y ⓘ program counter ⓘ stack pointer ⓘ status register ⓘ |
| instructionSet | 6502-based instruction set ⓘ |
| integratesFunction |
CPU
ⓘ
audio processing ⓘ |
| manufacturer | Ricoh ⓘ |
| market | video game hardware ⓘ |
| memoryAccess | mapped through NES memory map ⓘ |
| notableFor |
being the central processor of the NES
ⓘ
integration of CPU and APU on a single chip ⓘ |
| omitsFeature | binary-coded decimal (BCD) mode ⓘ |
| poweringSystem | NES main CPU and sound ⓘ |
| primaryUse | home video game console ⓘ |
| regionVariant |
NTSC
ⓘ
linked to:
NTSC color television standard
|
| similarTo | MOS Technology 6502 ⓘ |
| supportsFeature |
delta modulation (DPCM) sample playback
ⓘ
hardware envelopes for pulse channels ⓘ length counters for audio channels ⓘ sweep unit for pulse channels ⓘ |
| targetPlatform |
Nintendo Famicom
ⓘ
linked to:
Nintendo Entertainment System
|
| usedIn |
Famicom
ⓘ
linked to:
Nintendo Entertainment System
Nintendo Entertainment System ⓘ |
| usedWith | Ricoh 2C02 PPU ⓘ |
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: Ricoh 2A03 Description of subject: The Ricoh 2A03 is an 8-bit microprocessor derived from the MOS Technology 6502 that powered the Nintendo Entertainment System and integrated both CPU and audio functions.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Ricoh 2A03
linked to: Ricoh 2A03
linked to: Ricoh 2A03
linked to: Ricoh 2A03