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BCD
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''Binary coded decimal'' is a binary representation of decimal numbers where each [[Word#Nibble|nibble]] (4 bits) in a [[Word|word]] represents a separate decimal digit.
For example, in BCD, the value 128 is would be represented in a 3216-bit value as:
Decimal: 0 1 2 8
(Note that, in basic binary integer representation, which is the same binary number represents the decimal value 296).