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 RadioShack Consumer Electronics Glossary: Y

 
Y'
Video: The luma component of the Y'Cb'Cr' or Y'Pb'Pr' color space. Often abbreviated to Y (without the apostrophe).
 
Y-: see Yotto- (Y-).
 
y-: see Yocto- (y-).
 
Yagi Antenna
Communications: An unidirectional antenna with at least three elements: a reflector, a driven element and at least one director. Also called a Yagi-Uda Array, after Hidetsugu Yagi and Shintaro Uda, who collaborated in developing this antenna type.
Yagi Antenna with Three Directors
 
Yagi-Uda Array: see Yagi Antenna.
 
Y/C Video: see S-video.
 
Y'Cb'Cr'
Video: The standard digital color space for consumer video, often abbreviated to YCbCr (without the apostrophe).
 
Y-connector
Cables: A cable splitter, constructed with an input plug or jack on one end and two output plugs or jacks on the other end.
 
yocto- (y-)
Measurement: SI / Metric unit of decimal measurement, equal to 10-24 or 0.000000000000000000000001.
 
yotta- (Y-)
Measurement: SI / Metric unit of decimal measurement, equal to 1024 or 1,000,000,000,000,000,000,000,000.
 
Y'Pb'Pr'
Video: The standard analog color space for consumer video, often abbreviated to YPbPr (without the apostrophe).

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