Electrical Engineering ⇒ Topic : 1s Complement

1’s complement of a binary number is another binary number obtained by toggling all bits in it, i.e., transforming the 0 bit to 1 and the 1 bit to 0.

Examples:

Let numbers be stored using 4 bits

1's complement of 7 (0111) is 8 (1000)
1's complement of 12 (1100) is 3 (0011)

1'S COMPLEMENT

To get l's complement of a binary number, each bit of the binary number is subtracted from 1.The 1's complement of 1011 is 0100. In other words, l's complement of a binary number is formed by flipping the bits, i.e., converting Os to 1 and vice versa.