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Table Of Contents  CertiGuide to A+ (Core Hardware)
 9  Chapter 1000:  Multimedia
      9  IV  Monitors

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Refresh Rate

The second most critical characteristic of a monitor is the refresh rate that it will support.

You should also note that the refresh rate is a function of the video card and the monitor.

What it comes down to is finding the highest common denominator of the refresh rates supported between your video card and the monitor.

Simply put, the refresh rate of a monitor is the number of times the screen is painted per second.

This value is measured in Hz, or cycles per second.

This means a monitor set to 60 Hz will be repainted 60 times per second.

A rule of thumb is that the higher the refresh rate the less eyestrain the user will experience.

[spacer]60 Hz Refresh Rate

While we are speaking about eyestrain, if you use artificial lighting (florescent tubes), never set your refresh rate to 60 Hz. In the United States, electrical power cycles at 60 Hz. This means the light from the fluorescent tubes is actually flickering 60 times per second. When viewing a monitor that is set to 60 Hz refresh rate under artificial lighting, eyestrain is at it's worst. The most comfortable settings for refresh rate under any lighting conditions are around 80- 85 Hz.


Note: Never set the refresh rate higher than what is supported by the monitor. This can cause irreparable damage to the monitor, so be careful.


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