When performing BCD addition, what is the maximum value that can be…
2024
When performing BCD addition, what is the maximum value that can be represented in a single BCD digit?
- A.
2
- B.
10
- C.
15
- D.
More than one of the above
- E.
None of the above
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Correct answer: E
BCD stands for Binary Coded Decimal A single BCD (Binary Coded Decimal) digit represents a single decimal digit (0 through 9) using a 4-bit binary code.
Therefore, the maximum decimal value that a single BCD digit can represent is 9 (which is written as 1001 in binary).
Since 9 is not listed in options , so "none of the above" is the correct choice.
When performing BCD addition, if the result of a single digit exceeds 9, or if a carry is generated, you must add 6 (binary 0110) to skip the six invalid states and correct the result back into BCD format.