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VISUALDISPLAYUNITDefinition:Avisualdisplayunitisapieceofelectricalequipmentwhichdisplaysimages generatedbydevicessuchascomputers,withoutproducingapermanentrecord.The monitorcomprisesthedisplaydevice,circuitry,andanenclosure.

AmrithKrishna,

S4,CSEA,FISAT

WorkingofabasicMonitor

Afocusedbeamofelectronsfromelectrongunstrikethefluorescentscreen Shadesofimageisformedsectionbysectioncausingimagetobeformed.

ThepositionofbeamcorrespondstoXandYcoordinatepositionandIntensitybyZaxis Control.

Thesmallestaddressiblespotonscreenispixel

TypesofMonitors

CRTCathodeRayTube LCDTFT Plasma FDUFlexibleDisplayUnits TouchScreenMonitors

HowcanYoumeasureMonitor?

AspectRatio

ScreenSize

Colours

HowcanYoumeasureMonitor?

Width:Height 4:3normal 16:9DVDFormat

AspectRatio

HowcanYoumeasureMonitor?

Measuredininches Measuredfromonecornertotheother diagonallyoppositetoit

ScreenSize

HowcanYoumeasureMonitor?

HowcanYoumeasureMonitor?

AbilityofmonitortodisplayColourrange. Alsodependsonvideocard

Colours

HowcanYoumeasureMonitor?Monochrome

Colours

HowcanYoumeasureMonitor?ColorGraphicsAdapter(CGA)

Colours

16colours

HowcanYoumeasureMonitor?EnhancedGraphicAdapter

Colours

16colours

ThankYou


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