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A keyer where two levels of hole cutting are independently adjustable. The top level, or insert, cuts a hole and fills with the key video. In a luminance key, the second level forms the border of the ...

coating thickness

Entertainment; Video

The thickness of the magnetic coating applied to the base film of a mag tape. Modern tape coatings range in thickness from 170 to 650 microinches. Coating thickness is normally optimized for the ...

binary

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A base-2 numbering system using the digits 0 and 1 (as opposed to 10 digits, 0-9 in the decimal system). In computer systems, the binary digits are represented by two different voltages or currents, ...

coaxial cable

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a) A transmission line with a concentric pair of signal carrying conductors. There is an inner conductor and an outer conductor metallic sheath. The sheath aids in preventing external radiation from ...

binary coded decimal (BCD)

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A 4-bit representation of the 10 decimal digits “0” through “9.” Six of the sixteen possible codes are unused. Two BDC digits are usually packed into one byte.

cobalt doped oxide

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A type of coating used on magnetic recording tape. This is normally a gamma ferric oxide particle which has been doped with cobalt to achieve a higher coercivity. Modern forms of this oxide are ...