the bottom of the analog-video barrel. However, the National Television System Committee

the bottom of the analogue-video barrel. However, the National Television System Committee
(NTSC) the signal received by over-the-air antennas or by cable-TV feeds is composite video,
making it a very common video signal. Unfortunately, once the four signals are combined
into one, the display equipment has no way of faithfully splitting them back out, leading to
less than optimal quality but great cost efficiency.
A single yellow RCA jack, the composite video jack is rather common on computers and
home and industrial video components. While still fairly decent in video quality, composite
video is more susceptible to undesirable video phenomena and artefacts, such as aliasing,
cross colouration, and dot crawl. If you have a three-connector cable on your home video
equipment, such as a DVD player connected to a TV, odds are the tips will be yellow, red,
and white. The red and white leads are for left and right stereo audio; the yellow lead is
your composite video.
DisplayPort
DisplayPort is a royalty-free digital display interface from the Video Electronics Standards
Association (VESA) that uses less power than other digital interfaces and VGA. A simple
adapter allows HDMI and DVI voltages to be lowered to those required by DisplayPort
because it is functionally similar to HDMI and DVI. DisplayPort cables can extend 3 meters
unless an active cable powers the run, in which case the cable can extend to 33 meters.
The DisplayPort connector latches itself to the receptacle with two tiny hooks in the same
way that micro-B USB connectors do. Figure 3.41 shows an illustration of the DisplayPort
20-pin interface. Note the keying of the connector in the bottom left of the diagram.