VGA is an abbreviation for Video Graphics Array, a standardized connector designed for computer graphics output. Originating from the 1987 IBM PS/2 and later developed by Philips, the VGA standard has gone on to become more ubiquitous on computers, projectors and other high resolution television sets. In computers, a VGA connector allows for data to be sent and received at a single, two-dimensional bit rate via a pin to the video card or monitor. The VGA standard has enabled the creation of hundreds of millions of computer supported peripherals including, game controllers, printers and scanners. Even wireless internet access and digital home theater systems have harnessed the benefits of the VGA connector.
DVI or “Digital Video Interface” is the industry standard for analog interface monitors. Similar to VGA, DVI is a standardized connector that allows for two-dimensional data transfer to be represented. While the DVI signals are not digital, they are still transmitted over a connection with an analog television and therefore are referred to as analog. The analog interface is often used in conjunction with HDTV to provide high-resolution display.
DVI also uses an analog signal to carry digital signals instead of a digital signal. Some companies have created DVI adapters that allow DVI signals to be converted to digital using software. This adapter may be connected to a computer or video game console. A DVI to VGA bridge is also available to connect the two signals together. The advantage of the DVI to VGA bridge is that it allows DVI signals to be displayed on a VGA monitor.
HDMI is another popular standard for connecting a computer to a television. An HDMI connector has a component connection, which carries both analog signals and digital signals. Digital signals are typically analog signals transmitted over a data cable. Digital signals use the High Definition Audio format, which provides extremely high resolution audio over a data cable. This high resolution audio format is not supported by all current flat screen monitors. Flat panels that use HDMI will often come with built-in speakers, though this option may also be available for additional options.
Another type of connection commonly used for high resolution video is called DVI. A DVI cable is usually not sold with a VGA receiver, but it can be purchased separately. A DVI connection is a very good option if your computer does not have a VGA port. One advantage of DVI is that it provides a much clearer picture than a regular VGA signal, which makes it a popular choice for web cameras and other consumer electronics that need a sharper image. If you are looking for a good quality video signal, however, a VGA is usually a better option.
If you’re using an old analog TV that uses a 100-foot VGA cable to connect, you’ll probably be able to successfully transfer both analog and digital signals using a simple DVD burner program. For high definition viewing, however, you may want to invest in a digital monitor with HDMI or VGA capabilities. With a digital monitor, you can transfer both analog and digital signals with a single connection. Digital monitors generally have several features such as fast response time, fast display rate, and large size. They are generally more expensive, but you will likely find the extra cost well worth it for the clarity and better quality images it delivers.