Refers to a standard consisting of analog video signals transmitted on three wires, one for luminance (Y), one for the red component from which is subtracted the total luminance (R-Y), and one for the blue component from which is subtracted the total luminance (B-Y). (The green component is derived by combining the three components described.) The designations Y/Pb/Pr and Y/Cb/Cr are also used to stand for analog component video where more correctly the latter is for digital video. The so called "component video" jack or jacks seen nowadays are for analog component video. See, also, Component Video .
