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1080i
This is a high definition standard in which the entire picture is made from
1080 lines and is interlaced. First all of the odd number lines are drawn,
then all the even lines are drawn to produce an entire frame.
480i
This is the standard definition. The entire picture is made up of 480 lines and
it is drawn in an interlaced manner. First all of the odd number lines are drawn
and then all the even numbered lines are drawn to produce an entire frame.
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480p
This is a standard definition picture drawn from 480 lines but it is progressive,
meaning it is drawn faster than the 480i but it is still not considered high
definition.
720p
This is a high definition standard in which the entire picture is made from 720
lines. The 'p' stands for progressive which means the entire frame is drawn at
once. (Two frames in 720p are drawn in the same amount of time as one frame is
drawn in 1080i, thus 720p is much faster.)
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VHF
Very High Frequency, channels 2-13
UHF
Ultra High Frequency, channels 14-88
DVI
Digital Video Interface
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HDMI
Home Digital Multimedia Interface
ATSC
Advanced Television Standards Committee
NTSC
National Television Standards Committee
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PIXEL
A pixel is a picture element, which means any tiny spot in a picture.
Image Retention
Image retention refers to what in the past has
been called phosphor burn. This occurs when a fixed imaged remains in one spot
on the screen for an extended period of time and the ghost of that image remains
all the time thereafter.
Analog - Click here, then click on side
bar for Analog vs. Digital to get more detailed
information on Analog.
Digital - Click here, then click on side
bar for Analog vs. Digital to get more detailed
information on Digital.
High Definition - Click here,
then click on What is HD? to
get more detailed information on High Definition.
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