Let??âĒs examine the
connections first so that you know which connectors to look for on the PC and the TV
or projector.
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124 Part II: Intermediate
Understand Which Connection Types Are Preferable
Here are the types of connections, in descending order of quality:
HDMI (High-Definition Multimedia Interface)
DVI (Digital Visual Interface)
VGA (Video Graphics Array)
Component video
S-Video
Composite video
The following subsections explain the different connections and show pictures of
what their ports and connectors look like.
Ideally, you should avoid converting the signal from digital to analog if the TV can handle digital
input. Even if you must convert the signal to analog, try to avoid converting the signal from one
connection type to another, as doing so will always degrade the signal. That said, the results may
be quite acceptable, especially as most TVs are far less sharp than PC monitors.
HDMI
An HDMI cable transmits uncompressed digital audio and video signals, conveying
the audio and video information from your PC to the TV without loss, so it should
be your first choice if both your PC and output device have it. Figure 12-1 shows an
HDMI port and an HDMI connector.
Many new and recent LCD TVs include one or more HDMI ports, as do higherend
projectors. Older TVs are less likely to have HDMI ports.
DVI
DVI is widely used for connecting desktop PCs to LCD monitors and to projectors,
but few laptops have DVI ports (usually only high-end laptops), and even fewer
TVs have them.
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