A VGA or DVI port provides video only display.
A video input is a port that receives a video signal from a device. You can use the port to receive a signal from a cable box, DVD Player, or a streaming device.
That would be dependent on your device. It will show any video signal ported to the HDMI port.
Outputs the Audio and Video signal.
This cannot be done. The LPT port is a digital parallel printer port used mostly to interface with printers. The LPT port has a very low data transfer speed and is considered by many to be obsolete. The S-video is an analog port and sends a signal similar to a composite video signal. The two are apples & oranges, and there is no known hardware which can make that conversion. Nor will there likely ever be.
Provide digital video. It is equivalent to HDMI but without sound.
There is no truth in the statement. HDMI is an interface that carries digital audio and video signals. The image quality is dependent entirely on the quality and resolution of the signal that is delivered to the HDMI port by the video source. The HDMI connectors and cable carry that signal to the receiver but the cable does not change it in any way at all. DVI is compatible with HDMI other than the fact that there is no audio carried with the video signal. The video signal is identical to that carried by an HDMI cable and so this alone proves that statement to be false.
you can not do it without an additional set of chips for changing the characteristics of the signal
No. VGA port is not either serial or parallel port. It is a different interface. If you need a serial output, you need a VGA to serial converter.
S-video is better than the composite video when output to a television
A VGA port is a video connector that supports older monitors and graphic output devices. It differs from a DVI connector in that it is not a digital signal. Your typical VGA port is blue in color on your video card and the cable connector are also the same shade of blue.
An S-Video Port
what is another name for a video port?