Now a days there are many types of ports available to connect display device or computer monitor to your computer. The Computer Monitor is connected to Graphics Card of a Computer using a Port. The Graphics card may be an internal graphics card on the motherboard of a Desktop Computer or an external graphics card can also be used. In case you do need to add another display device to your laptop and your laptop does not have any other available port available, then you can consider connecting an external graphics card using the USB port.
Knowledge of Monitor Ports can be helpful in case you do need to connect another internal / external graphics card. You would need to match port of your graphics card (internal or external) to port of your computer monitor or other display device. You can also use port converters in case you do not have matching graphics card and computer monitor ports. Few of the available ports for computer monitors or display devices are VGA, DVMI, DisplayPort and S-Video. Given below paragraphs will talk briefly about the Monitor / Display device ports.
VGA or DE-15(analog) connecting ports were common to the older CRT monitors having 15 pins in an array of five each. The Asus AX300SE/TD 128MB DDR PCIe card is one such example.
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