What's the difference between analog D-sub, vga and DVI?

I am planning on buying a monitor and it say it supports Analog D-sub and DVI but I think I hold a VGA connector and my monitor is a Compaq MV540 if that helps...



Please back I am confused!


Answer:

Analog D-sub is the same as VGA.



It is really a HD 9 pin D-shell connector. VGA really is a clear chip standard, but they have become synonymous.





DVI is a much newer standard and comes surrounded by three flavors:



DVI-A is analog. This has exactly one and the same signals as a VGA connector but in a DVI connector shell. Signal power is a bit better. You can get adapters that will remap the signals from a DVI-A connector to a VGA connector.



DVI-D is digital. This will contribute a better image for flat panel as the video signal stays digital from the GPU through to the panel. VGA it gets converted from digital to analog, pushed up the (lossy) cable, sample and converted back to digital.



DVI-I is analog and digital. Usually see on the back of video cards. Since the analog signals and the digital signals use different pins you can fully populate the connector and support any.





Your Compaq MV540 is an analog CRT monitor, so it should have a VGA connector.

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