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Last modified: Tuesday, August 06, 2002 

Abbreviation of cathode-ray tube, the technology used in most televisions and computer display screens. A CRT works by moving an electron beam back and forth across the back of the screen. Each time the beam makes a pass across the screen, it lights up phosphor dots on the inside of the glass tube, thereby illuminating the active portions of the screen. By drawing many such lines from the top to the bottom of the screen, it creates an entire screenful of images.

Also see The Science of Color in the Did You Know . . . ? section of Webopedia.

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For pages about CRT . Also check out the following links!

Related Links

Anatomy and Operation of a CRT Monitor 
Outlines the anatomy and operation of a CRT monitor, including the various shadow mask designs and associated safety standards. Includes graphics, diagrams and an integrated glossary. This page is from "The PC Technology Guide."

How Monitors Work 
Everything from the electron gun to the differences between a shadow mask and an aperture grill. It's basically everything that you've always wanted to know about monitors but were terrified to ask.

Comparison of LCD to typical CRT monitors
A comparison between flat LCD and traditional CRT monitors, including display sizes, physical size, display charactersitics, and energy features.

CRT Characteristics
Describes analog and Digital CRTs, dot pitch, shadow mask and aperture grill, image quality factors, and magnetization and degaussing. This page is from "The PC Guide."

PC Guide's monitor reference
Comprehensive guide to the operation of the monitor. Covers construction and operation, resolution, color, refresh, size and size matching, CRT characteristics, and power and safety issues.

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