The Digital Video Interface-DVI in the Context of VGA and HDMI Ports Technology by Rosemary Shears - July 9, 20190 There are plenty of different ways connecting video sources to your monitors and TVs in contemporary times that often people get confused to choose from the available connectors and ports. Eventually, you can find a lot of devices in your daily use for different purposes with various types of video cable connections. It is difficult for the users particularly for the non-technical persons to know the difference between various ports and connectors like DVI, VGA. HDMI etc. Get the best and durable DVI connectors from PrimeCables.ca to connect with your video source for high quality images and videos. In order to start with the understanding of different ports and connectors, the VGA or the Video Graphics Array is the oldest form of connectors which are still found in many computing equipment’s. The VGA was first developed by the IBM in 1987 and since then it was widely used on a variety of devices like video cards, computer monitors, laptops, TVs etc. The VGA has the abilities to support resolutions in 16 colours up to 640 to 480. This is further known as 13h and generally used while booting the computer to safe mode. In between the late 1980s and early 1990s, the VGA was universally used in computer gaming around the world. The technical components of VGA cables are they can carry RGBHV video signals i.e. red, blue and green, vertical sync. as well as horizontal sync. The VGA socket is comprised of 15 pins which are systematically arranged in three rows of five pins each and with blue connector. You can connect the socket by inserting to the device and tighten the screws that are placed one each on both side of the socket. The VGA is seldom used now a days. You can rarely find them in the older version of the hardware. In most cases, the VGA has been replaced by DVI and HDMI. The DVI was developed by Digital Display Working group and introduced in 1990. The DVI transmits the digital video in three different modes. They are (1) DVI-I, (2) DVI-D, and (3) DVI-A. The DVI-I is an integrated mode which integrates the digital as well as analogue in the same connector. The DVI-D supports only the digital signals, and the DVI-A supports only the analogue signal. The HDMI or High Definition Media Input is a video and audio transfer interface. The HDMI was developed by a consortium of manufacturers namely Sony, Toshiba and Sanyo. The HDMI transfers the uncompressed video as well as audio both eight channel compressed and uncompressed to different devices like blue-ray players, DVD players, computer monitors and TVs etc.