IBM Color/Graphics Monitor Adapter

E184288

IBM PC expansion card computer hardware graphics adapter

The IBM Color/Graphics Monitor Adapter (CGA) is an early IBM PC graphics standard and expansion card that provided low-resolution color and text display capabilities for personal computers in the 1980s.

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All labels observed (3)

Label	Occurrences
Enhanced Graphics Adapter	1
IBM CGA	1
IBM Color/Graphics Monitor Adapter canonical	1

How this entity was disambiguated

This entity first appeared as the object of triple T1635776 — 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: IBM Color/Graphics Monitor Adapter
Context triple: [CGA, alsoKnownAs, IBM Color/Graphics Monitor Adapter]

A. IBM PC AT
The IBM PC AT is a second-generation IBM personal computer introduced in 1984 that featured the Intel 80286 processor and set many hardware and expansion standards for business PCs.
B. IBM PC
The IBM PC is the original 1981 personal computer model from IBM that became a de facto industry standard and helped popularize home and business computing worldwide.
C. IBM PC XT
The IBM PC XT is an early 1980s personal computer from IBM that expanded on the original IBM PC with a built-in hard drive and more expansion capabilities, becoming a widely used business desktop system.
D. DeLuxe Color
DeLuxe Color is a color motion picture film process and brand used by Deluxe Laboratories as an alternative to Eastmancolor for producing color prints for movies.
E. Commodore Amiga 500
The Commodore Amiga 500 is a late-1980s home computer known for its advanced graphics and sound capabilities, making it popular for gaming, multimedia, and creative applications.
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: IBM Color/Graphics Monitor Adapter
Target entity description: The IBM Color/Graphics Monitor Adapter (CGA) is an early IBM PC graphics standard and expansion card that provided low-resolution color and text display capabilities for personal computers in the 1980s.

A. IBM PC AT
The IBM PC AT is a second-generation IBM personal computer introduced in 1984 that featured the Intel 80286 processor and set many hardware and expansion standards for business PCs.
B. IBM PC
The IBM PC is the original 1981 personal computer model from IBM that became a de facto industry standard and helped popularize home and business computing worldwide.
C. IBM PC XT
The IBM PC XT is an early 1980s personal computer from IBM that expanded on the original IBM PC with a built-in hard drive and more expansion capabilities, becoming a widely used business desktop system.
D. DeLuxe Color
DeLuxe Color is a color motion picture film process and brand used by Deluxe Laboratories as an alternative to Eastmancolor for producing color prints for movies.
E. Commodore Amiga 500
The Commodore Amiga 500 is a late-1980s home computer known for its advanced graphics and sound capabilities, making it popular for gaming, multimedia, and creative applications.
F. None of above. chosen

Statements (48)

Predicate	Object
instanceOf	IBM PC expansion card ⓘ computer hardware ⓘ graphics adapter ⓘ
alsoKnownAs	CGA ⓘ IBM Color/Graphics Monitor Adapter ⓘ surface form: IBM CGA
busType	8-bit ISA ⓘ
canProduceArtifactColors	yes ⓘ
characterGenerator	ROM-based font ⓘ
colorEncoding	digital RGBI ⓘ
colorModel	4-bit RGBI ⓘ
compatibleWith	BIOS video interrupt 10h ⓘ
compositeOutputConnectorType	RCA jack ⓘ
designedFor	IBM PC ⓘ IBM PC XT ⓘ IBM PC compatible computers ⓘ
designedForCPUFamily	Intel 8088-based systems ⓘ
historicalSignificance	first color graphics standard for IBM PC ⓘ
introducedInYear	1981 ⓘ
introducedWith	IBM PC ⓘ surface form: IBM Personal Computer
manufacturer	IBM ⓘ
marketPosition	low-cost color solution ⓘ
maxColorsIn320x200Mode	4 ⓘ
maxColorsIn640x200Mode	2 ⓘ
paletteSize	16 colors ⓘ
predecessor	MDA ⓘ
primaryUseEra	1980s ⓘ
rgbOutputConnectorType	DE-9 ⓘ
successor	EGA ⓘ VGA ⓘ
supportsColorBurstOnComposite	yes ⓘ
supportsCompositeOutput	yes ⓘ
supportsGraphicsMode	320×200 pixels ⓘ 640×200 pixels ⓘ
supportsMonochromeMonitor	yes ⓘ
supportsMonochromeMonitorType	composite monochrome TV or monitor ⓘ
supportsRGBMonitorOutput	yes ⓘ
supportsTextAttributes	background color ⓘ blink ⓘ foreground color ⓘ
supportsTextMode	40×25 characters ⓘ 80×25 characters ⓘ
supportsTextResolution	320×200 pixels equivalent in 40×25 mode ⓘ 640×200 pixels equivalent in 80×25 mode ⓘ
textCharacterCellSize	8×8 pixels ⓘ
typicalMonitor	IBM 5153 ⓘ surface form: IBM 5153 Color Display
usedIn	early PC games ⓘ home and small business PCs ⓘ
videoMemorySize	16 KB ⓘ

How these facts were elicited

Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

CGA → alsoKnownAs → IBM Color/Graphics Monitor Adapter ⓘ

Monochrome Display Adapter → successor → IBM Color/Graphics Monitor Adapter ⓘ

this entity surface form: Enhanced Graphics Adapter

IBM Color/Graphics Monitor Adapter → alsoKnownAs → IBM Color/Graphics Monitor Adapter ⓘ

this entity surface form: IBM CGA

All labels observed (3)

How this entity was disambiguated Show

Statements (48)

How these facts were elicited Show

Referenced by (3)

How this entity was disambiguated

How these facts were elicited