TI-99/4A
E533732
The TI-99/4A is a home computer released by Texas Instruments in the early 1980s, notable for being one of the first 16-bit consumer machines and competing with systems like the Atari 8-bit and Commodore 64.
All labels observed (5)
| Label | Occurrences |
|---|---|
| TI-99/4A canonical | 4 |
| TI-99 series | 1 |
| TI-99/4 | 1 |
| TI-99/4A home computer | 1 |
| TI-99/4A home computer (TMS9918A VDP) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5601692 — 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: TI-99/4A Context triple: [Atari 8-bit family, contemporaryWith, TI-99/4A]
-
A.
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.
-
B.
Ricoh 2A03
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.
-
C.
Acorn Electron
The Acorn Electron is a compact 8-bit home computer released in the 1980s as a cost-reduced, consumer-oriented version of Acorn's BBC Micro.
-
D.
Amstrad CPC
The Amstrad CPC is an 8-bit home computer line from the 1980s, popular in Europe for gaming and productivity software.
-
E.
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.
- 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: TI-99/4A Target entity description: The TI-99/4A is a home computer released by Texas Instruments in the early 1980s, notable for being one of the first 16-bit consumer machines and competing with systems like the Atari 8-bit and Commodore 64.
-
A.
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.
-
B.
Ricoh 2A03
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.
-
C.
Acorn Electron
The Acorn Electron is a compact 8-bit home computer released in the 1980s as a cost-reduced, consumer-oriented version of Acorn's BBC Micro.
-
D.
Amstrad CPC
The Amstrad CPC is an 8-bit home computer line from the 1980s, popular in Europe for gaming and productivity software.
-
E.
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.
- F. None of above. chosen
Statements (52)
| Predicate | Object |
|---|---|
| instanceOf | home computer ⓘ |
| basicInterpreter | TI BASIC in ROM ⓘ |
| colorPaletteSize | 16 colors ⓘ |
| competitor |
Apple II series
ⓘ
linked to:
Apple II
Atari 8-bit family ⓘ Commodore 64 ⓘ |
| cpu | TMS9900 ⓘ |
| cpuArchitecture | 16-bit ⓘ |
| developer | Texas Instruments ⓘ |
| discontinuationDate | 1983 ⓘ |
| enhancedBasic | Extended BASIC ⓘ |
| expansionOptions |
32 KB memory expansion
ⓘ
RS-232 interface ⓘ disk controller ⓘ speech synthesizer ⓘ |
| expansionSystem | Peripheral Expansion Box ⓘ |
| family |
TI-99 series
ⓘ
linked to:
TI-99/4A
|
| graphicsChip |
TMS9918A
ⓘ
linked to:
Texas Instruments TMS9918-derived VDP
|
| inputDevice |
joysticks
ⓘ
keyboard ⓘ |
| introductoryPriceUSD | 525 ⓘ |
| joystickPortCount | 2 ⓘ |
| keyboardType | full-travel keyboard ⓘ |
| manufacturer | Texas Instruments ⓘ |
| market | home computer market ⓘ |
| marketingChannel | aggressively discounted in US retail chains ⓘ |
| maxResolution | 256×192 pixels ⓘ |
| notableFeature |
cartridge-based software distribution
ⓘ
one of the first 16-bit consumer home computers ⓘ speech synthesis add-on ⓘ |
| os |
TI BASIC environment
ⓘ
linked to:
TI-BASIC
cartridge-based software ⓘ |
| powerSupply | external power supply brick ⓘ |
| predecessor |
TI-99/4
ⓘ
linked to:
TI-99/4A
|
| primaryColorVariant |
beige
ⓘ
silver and black ⓘ |
| primaryLanguage |
TI BASIC
ⓘ
linked to:
TI-BASIC
|
| ram | 16 KB main RAM ⓘ |
| region |
Australia
ⓘ
Europe ⓘ North America ⓘ |
| releaseDate | 1981 ⓘ |
| rom | 26 KB ROM ⓘ |
| soundChannels |
1 noise channel
ⓘ
3 tone channels ⓘ |
| soundChip |
SN76489A
ⓘ
linked to:
Texas Instruments SN76489
|
| storage |
cartridge slot
ⓘ
cassette interface (via cable) ⓘ floppy disk drive (via Peripheral Expansion Box) ⓘ |
| videoOutput |
RF modulator
ⓘ
composite video (via expansion) ⓘ |
| vram | 16 KB video RAM ⓘ |
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: TI-99/4A Description of subject: The TI-99/4A is a home computer released by Texas Instruments in the early 1980s, notable for being one of the first 16-bit consumer machines and competing with systems like the Atari 8-bit and Commodore 64.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: TI-99/4A
linked to: TI-99/4A
linked to: TI-99/4A