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Differences Port VGA, DVI, and HDMI

Kamis, 31 Januari 20130 komentar




When you buy a new computer, one of the most important things you should do is check the ports that are supported by the computer. One is of course the port that you can connect to a monitor or projector at school or in your office.

It is very important for you to pay attention because there are a lot of yag port can be used to connect video. Because, until now there is no specific standard for video port that you can use. Now there are only three types of video ports that usually present in the computer, the VGA port, DVI, and HDMI.

The three types of ports might seem familiar if you are working in the computer world. Well, for those of you who do not know the difference, in this article I will review the differences of paseban when the port.

VGA

VGA stands for Video Graphics Array is the most famous. It is quite natural mengingan VGA has been around since 1987. Though it may seem old fashioned, but VGA is still found in many new computers. It could not be separated from the number of projector or other video connections are still using VGA port sehinnga computer makers have not been able to let go.

The VGA cable is the main component that transmits the signal. Because it uses a high frequency, the VGA can support a variety of resolutions. Unfortunately, the resulting video quality usually depends on the type of cable used. So it's not unusual if you find a difference in image quality if you use a variety of different cables.

VGA connector consists of fifteen pin which is divided into three lines with a distinctive pattern. Although there is no fixed rule about the color of the port, but most manufacturers make port and VGA connector in blue.

DVI

DVI can be called as the successor of VGA. DVI connectors are common in the computer that has a graphics card and a high resolution. But despite increasingly use multiple computers, VGI popularity is still far behind when compared to VGA.

In addition, DVI has a whole range of different connectors that will leave you confused. In addition to the type of DVI-A, DVI connectors All types can work well for different types of videos that do not depend on the type of cable used. Things to distinguish between all these types of DVI connectors are pin its layout.

DVI-D connector has a slah slab on one side, and none of the pins on the top or bottom of the plate. DVI-D is used exclusively to transmit digital video. Meanwhile, DVI-I connector has similarities with DVI-D, it's just that this connector has 4 pins around the dial. The four pin will bring the analog signal so koektor DVI-I can be used to transmit digital and analog signals simultaneously.

DVI-D and DVI-I connectors have two different types, namely single link and dual link. Connector pin single link has set a 'hole' in the middle. While the dual link has a complete set of pin 24 pieces numbered and divided into three lines. Dual link connectors can be used for higher video resolution. To see a more complete diagram, you can visit Wikipedia.

HDMI

If DVI is the successor to VGA, HDMI is the successor to DVI. Perhaps because of its presence on many high-definition television, then the HDMI reasonably quickly known by the public. Besides compatible with various types of new TV, HDMI also has a size small enough when compared to DVI. Therefore, almost all the latest computer and projector must have an HDMI connector.

Just as DVI, HDMI is designed to transmit uncompressed digital signals. However, in addition to transmitting video signals, HDMI can transmit digital audio signals at once. Although there are many types of HDMI connectors, but the most commonly used is Type A connectors are widely used in computer and television today.
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