Question

difference between 1'ss complement and 2's complement

Answer 1

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)

2’s complement of a binary number is 1 added to the 1’s complement of the binary number.

Examples:

Let numbers be stored using 4 bits

2's complement of 7 (0111) is 9 (1001)

2's complement of 12 (1100) is 4 (0100)