The link below should tell you all you need to know.
http://www.datapro.net/techinfo/dvi_info.html
If you want more, a search of Google for "DVI cable" gives you lots of links to choose from.
Hope this helps.
Grif
My monitor (ViewSonic 17in flat screen) and my video card (Radeon X800 Pro) have a connection for a DVI cable. What exactly is this? Is it a better connection than the standard monitor cable? Thanks for any help that anyone can swing my way.

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic