3.4. Exam Essentials

Be able to compare and contrast the three main categories of display technology.

Although video display units all have roughly the same purpose—to display images created by the computer and rendered by the graphics adapter—CRTs, LCDs, and projectors go about the task in slightly different ways.

Understand key concepts behind LCD technology.

You need to be familiar with active and passive matrix; resolution standards, such as XGA and UXGA; and terms such as contrast ratio and native resolution.

Know the various video connectors and the technologies behind them.

You should be able to recognize the various connectors used when interfacing VDUs with computers, home-entertainment systems, and the like. You should also be conversational ...

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