CGA

E35356

IBM graphics adapter computer graphics standard display standard

CGA (Color Graphics Adapter) is IBM's early color display standard for the original IBM PC, capable of low-resolution graphics and basic color text output.

Aliases (1)

Color Graphics Adapter ×1

Statements (48)

Predicate	Object
instanceOf	IBM graphics adapter → computer graphics standard → display standard →
alsoKnownAs	IBM Color/Graphics Monitor Adapter →
busType	IBM PC expansion bus →
category	IBM PC display adapter →
characterCellSize	8×8 pixels →
colorDepth	4-bit →
compatibleWith	CGA monitors →
compositeOutputStandard	NTSC →
connectorType	DE-9 RGBI →
designedFor	IBM PC →
developer	IBM →
era	early 1980s PC graphics →
fullName	Color Graphics Adapter →
graphicsModeColorsAt320x200	4 →
graphicsModeColorsAt640x200	2 →
graphicsModeResolution	320×200 → 640×200 →
influenced	PC graphics standards →
introducedInYear	1981 →
introducedWith	IBM Personal Computer →
limitations	limited color combinations → low resolution →
marketedAs	low-cost color graphics option →
maxColorsOnScreen	16 →
memorySize	16 KB →
outputType	digital RGBI →
paletteSize	16 colors →
predecessor	MDA →
signalType	digital video signal →
status	obsolete →
successor	EGA → VGA →
supportsBlinkAttribute	true →
supportsColor	true →
supportsCompositeVideo	true →
supportsInterlacedCompositeArtifacts	true →
supportsTextAttributes	background color → blink → foreground color →
targetPlatform	IBM PC Model 5150 →
textModeColors	16 →
textModeResolution	40×25 characters → 80×25 characters →
usedFor	PC games → business software →
usedIn	early IBM PC compatibles →

Referenced by (5)

Subject (surface form when different)	Predicate
IBM PC → IBM PC AT → IBM PC XT →	graphicsAdapter
CGA ("Color Graphics Adapter") →	fullName
MDA →	successor