Although you have probably used DVI and VGA cables before, you probably didn’t know what they were. In there simplest form the difference between them is that one of them uses older analogue technology and the other more modern digital signals.

VGA is the oldest technology and has grown since it’s inception in the late 90’s. It was a way to pass information from computers to there displays, even though the technology is relatively old there is still many uses for it today in one form or another for the various things that need to display images on screen. Digital cameras and mobile phones use this technology even today.

VGA is based on analogue technology and requires changing to a digital signal at either end. Obviously this slows things down and little. With the increase in the needs of users we needed a faster more accurate way to transfer this data.

Enter DVI offering the ability to transfer a complete digital signal allowing more accurate transfer without the loss in performance or quality that a VGA cable can cause. This is still used regularly today, as it is a good performer and proven technology.

Since it was first introduced DVI has changed a little and different versions have been released to help out with certain problems and offer variety of solutions. One such variety is DVI-D which is digital only and DVI-I which is both analogue and digital.