How we can change binary number to two's complement ?

Answer 1

To change a binary number to its two's complement representation, you can use the following steps:

1. Start with the given binary number.
2. If it is a positive number (sign bit is 0), then the two's complement representation is the same as the given number.
3. If it is a negative number (sign bit is 1), flip all the bits (0 to 1 and 1 to 0) of the given number.
4. Add 1 to the flipped number to obtain the two's complement representation.

For example, let's say we want to change the binary number 10110 to its two's complement representation:

1. Start with the given binary number: 10110
2. As the sign bit is 1, we flip all the bits: 01001
3. Add 1 to the flipped number: 01010
4. The two's complement representation of 10110 is 01010.