USB Port
A VGA or DVI port provides video only display.
S-Video is an analog port, not digital, so "serial" and "parallel" terms do not apply to it.
Provide digital video. It is equivalent to HDMI but without sound.
A HDMI cable will send audio and video down one cable.
A HDMI cable will send audio and video down one cable.
The DV port on a video camera is a high speed digital interface, that competes with the USB standard. Depending on the brand, the DV port can also be known as a Firewire, i.LINK, or IEEE 1394 port. The DV port found on most video cameras are tiny, and almost completely rectangular with a inward notch.
This is the port IEEE 1394 is also known as Fire Wire
S-video is better than the composite video when output to a television
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.
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.
Digital Video Disc or Digital Versatile Disc