DVI image external interface
The next one is DVI – Digital Visual Interface. The first DVI was not a multimedia interface, because it did not have audio data transfer. Nowadays, there are some variations that can transfer audio, but it is non-standard. We can assume DVI is rather for image transfer. It is a digital interface, similar in signals to HDMI. The latest variation is DVI-I, where I stands for integrated interface. It can have a digital and analog part for VGA compatibility. In the picture above there is a DVI-D, digital only, where we do not have the pins for analog VGA interface. Analog VGA is sometimes available in your desktop computer, but not in laptops anymore.
Key Takeaway: DVI is digital visual interface with multiple variations and updates, similar in signal to HDMI
VGA image external interface
The oldest video interface still in use is the VGA – Video Graphic Array interface. It becomes less and less popular. This is an analog interface, not a digital one like all the other abovementioned interfaces. Analog interface means that we do not transmit the bits, but we send the voltages values. The analog signals are not stable, they are quite easy to disturb, so the transfer cannot be very high in speed and volume
Key takeaway: VGA’s popularity is declining, and it is not the best solution if you have a high-resolution display or noisy environment.
DP (Display Port) image external interface
The last external interface that we can find in our devices nowadays is a DisplayPort. DisplayPort is similar to HDMI or DVI. It can also transfer image and sound. It is even faster than the HDMI. Usually, the DisplayPort is used for high resolution displays, for new monitors and TVs with 4K or 8K resolution where it is really hard, or nearly impossible, to achieve such resolution using HDMI interface.
Key Takeaway: DisplayPort is super-fast image and sound transmitting interface, used in highest resolution displays.
Please remember to SUBSCRIBE to our YouTube channel and fill out the MEMBERSHIP FORM, to be informed about our Riverdi University materials and live events!