VGA is the standard format used by a computer to display its video output on a monitor. Most graphics cards use VGA analog output, and some higher-end televisions, and most projectors, have VGA input capability.
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DVI is a newer technology used primarily for displaying a computer's video output on an LCD monitor. Almost all modern graphics cards have a DVI output. All LCD monitors should have DVI inputs, and some HDTV's do as well.
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Component video plugs and receptacles resemble composite plugs and receptacles, but carry a different, higher-quality format. HDTV's and plasma monitors should have component inputs. High end graphics cards usually provide component video outputs via the attachment of a "dongle," or conversion cable, that can be connected to the video card.
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HDMI plugs and receptacles resemble a larger version of a mini-USB connector. High-end HDTV's and plasma monitors often have HDMI inputs. High end graphics cards usually provide HDMI inputs via the attachment of a "dongle," or conversion cable, that can be connected to the video card.
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