Multiple choice

A logic circuit which is used to change a BCD number into an equivalent decimal number is

  1. decoder

  2. encoder

  3. multiplexer

  4. code converter

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A Correct answer
Explanation

A BCD decoder takes a 4-bit BCD input and activates one of 10 outputs corresponding to decimal digits 0-9. It converts the binary coded decimal into its decimal equivalent by decoding which digit is represented.