Video Ports

Standard cathode ray tube (CRT) monitors and many projectors connect to your PC using a 15-pin D-sub miniature connector arranged in three rows of five pins each. The corresponding video port on the PC, accommodates only that connector. No other port on your PC looks like this one. Many flat-panel liquid crystal display (LCD) monitors and some projectors use a specially keyed, 24-pin Digital Visual Interface (DVI) connector

that plugs into a DVI port on the back of your video adapter card, DVI comes in several varieties, such as analog, DVI-A, and digital, DVI-D

Note: Thin-film transistor the most common LCD monitors use a technology called thin

Many techs erroneously refer to all LCD monitors as TFTs.