What Is a VGA Cable Used for?

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A blue VGA cable connected to the back of a computer.
Image Credit: tonaquatic/iStock/Getty Images

Computers use various cables and connectors to work and complete tasks. One of the most important cables to be able to recognize is the VGA cable. A VGA cable is compatible with most computers sold today.

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Function

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A VGA cable is used to connect your computer to your computer monitor. It transfers the picture signal from the computer to the monitor so it can be displayed.

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Features

A VGA cable usually has a screw on either side of the plug to mount it to the matching plug on the back of a computer system. The inside of the plug has pins that fit into the pattern of holes in the back of the computer.

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Identification

VGA cables can be identified by looking at the inside of the plug. Most VGA cables have fourteen pins on the inside, with a fifteenth hole showing. Sometimes other pins are missing on the inside, depending on the system's setup.

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Benefits

VGA is supported by every PC sold today. With a VGA cable hooking your computer to your monitor graphics can display before any video drivers have been installed.

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History

VGA was unveiled in 1987 as a new analog graphics array by IBM. After its introduction other manufacturers built upon it to increase features. It is now the most widely used in video and graphics.

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Cost

To replace a VGA cable it can cost anywhere from five dollars and up. There are a variety of features available including VGA extender cords or gold-plated plugs.

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