You need a DVI-D to VGA converter cable if you want to use a digital video source with an analog monitor. This adapter converts digital video on your computer to analog. When you decide to buy one of these items, do some shopping, because prices vary a great deal. In addition, some retail outlets have significant discount sale prices from time to time.
The DVI-D to VGA converter allows you to access the high-definition digital video signal from your computer and watch it on other types of monitors. For example, you can watch the video on a cathode ray tube monitor, or CRT. These large monitors once came with every desktop personal computer, but have been increasingly phased out with new technology.
You can even watch the video from your computer on an analog television with this converter. Newer televisions use digital technology, but many people still have analog televisions that are fully functional with cable or satellite systems or digital antenna converters. Watching a video on your TV that is sourced from your computer is an advantage when your analog television is significantly larger than your computer screen, or when you want to watch a video with several people while sitting in your living room.
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