Tag: digital electronics and logic gates

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

In standard BCD (Binary Coded Decimal) or common character encoding representations, 'A' is often represented as 1010 in specific 4-bit contexts or extended codes.