Intermediate
Digital Logic Design
Q71 / 100
What is "Excess-3" code, and how is it related to BCD?
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Incorrect.
The correct answer is A) A self-complementing code obtained by adding 3 to each BCD digit before converting to binary, useful for simplifying certain decimal arithmetic operations like BCD subtraction
A
Correct Answer
A self-complementing code obtained by adding 3 to each BCD digit before converting to binary, useful for simplifying certain decimal arithmetic operations like BCD subtraction
Explanation
Excess-3 is formed by adding 3 (0011) to each BCD digit; being self-complementing (the code for 9's complement of a digit is the bitwise complement of its Excess-3 code) makes it useful for decimal subtraction circuits.
Progress
71/100