Tag: digital electronics and logic gates

Questions Related to digital electronics and logic gates

Which one of the following gives the $2's$ complement of decimal number $13$?

physics electronic devices boolean algebra digital electronics and logic gates logic gates

  1. $0010$

  2. $0011$

  3. $1100$

  4. $1101$

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Correct Option: B
Explanation:

The binary representation of $13$ is $1101$. The $1's$ complement of $13$ is $0010$. The $2's$ complement of $13$ is $0010 + 1 = 0011$.

The BCD code for the character A is

physics electronic devices boolean algebra digital electronics and logic gates logic gates

  1. $1000$

  2. $1010$

  3. $1011$

  4. $1100$

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Correct Option: B