MDA

E35355

IBM PC display adapter computer display standard video display adapter

MDA (Monochrome Display Adapter) is IBM's original text-only video display standard for early IBM PCs, providing high-resolution monochrome output without graphics capabilities.

Statements (49)

Predicate	Object
instanceOf	IBM PC display adapter → computer display standard → video display adapter →
attributeSupport	blink → intensity → reverse video → underline →
busInterface	ISA →
busWidth	8-bit →
characterCellResolution	9×14 pixels →
characterSetStorage	ROM on adapter card →
colorSupport	single-color →
compatibleWith	IBM PC 5150 → IBM PC XT 5160 → early IBM PC compatibles →
connectorType	DE-9 →
defaultTextBackgroundColor	black →
defaultTextForegroundColor	amber → green →
designedFor	business applications → data entry → text processing →
developer	IBM →
displayType	monochrome →
doesNotSupport	bitmap graphics → color graphics →
effectivePixelResolution	720×350 pixels →
fullName	Monochrome Display Adapter →
graphicsCapability	text-only →
horizontalScanFrequency	18.432 kHz →
introducedFor	IBM Personal Computer →
introductionYear	1981 →
manufacturer	IBM →
marketPosition	business-oriented display adapter →
maxTextResolution	80×25 characters →
pairedMonitor	IBM 5151 →
pairedMonitorType	monochrome CRT monitor →
predecessor	IBM 3270-style terminal displays →
primaryUseEra	early 1980s →
signalType	TTL digital video →
successor	CGA → EGA → VGA →
supportsGraphicsMode	no →
supportsTextMode	yes →
textColumns	80 →
textRows	25 →
verticalRefreshRate	50 Hz →
videoMemorySize	4 KB →

Referenced by (2)

Subject (surface form when different)	Predicate
IBM PC → IBM PC XT →	graphicsAdapter