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binary-coded decimal

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noun

a number in binary code written in groups of four bits, each group representing one digit of the corresponding decimal numberAbbreviation: BCD

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Scientific definitions for binary-coded decimal

binary coded decimal

Computer Science

A code in which a string of four binary digits represents each decimal number 0 through 9 as a means of preventing calculation errors due to rounding and conversion. For example, since the binary equivalent of 3 is 0011 and the binary equivalent of 6 is 0110, 36 is represented as 0011 0110.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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