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A three digit decimal number requires ________ for representation in the conventional BCD format.(a) 3 bits(b) 6 bits(c) 12 bits(d) 24 bitsThis question was addressed to me during an interview for a job.This intriguing question originated from Binary Coded Decimal(BCD) in division Number System and Codes of Digital Circuits

Answer»

Correct answer is (c) 12 bits

For EXPLANATION: The number of bits needed to REPRESENT a given decimal number is always greater than the number of bits REQUIRED for a straight binary encoding of the same. Hence, a THREE digit decimal number REQUIRES 12 bits for representation in BCD format.



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