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The Digital Visual Interface or DVI interface was first released in 1999. It was designed to replace the VGA connector which I will cover later in the video. The DVI connector comes in many different connector types.
The DVI connectors can be divided into three different types. DVI is old technology so for the exam you will not be required to know too much about it. It is useful to be aware there are different types of connectors for troubleshooting purposes.
Shown here is a single link cable. If I compare this with a dual link cable that I purchased, you will notice that the same connector is used on both. If I were to take a guess, I would say that the manufacturer finds it cheaper to manufacturer the one type of plug rather than different plugs. This may make it cheaper to make but means you can’t tell if the cable is single or dual link by looking at the plug. Some single link cables will have a single link plug while others will have the dual link plug.
The DVI specification supports a lot of different resolutions and timings. What resolutions are supported will be determined by your video card and your monitor. The maximum resolution supported by DVI single-mode is 2560 by 1600 at 30 hertz or 1920 by 1200 at 60 hertz.