What Does Two’s Complement Mean?

The “two’s complement” in IT is an operation on binary numbers, and a way to record these numbers through mathematical manipulation, to define both positive and negative integers in binary. It has been described by experts as a “binary signed number representation” that has to do with signed and unsigned values for eight-bit binary or other binary numbers.

Techopedia Explains Two’s Complement

Part of the use of the two’s complement has to do with the representation of negative and positive numbers in binary. Traditional binary starts with a zero in the left side of the row of numbers, and changes that to a one to represent the number one. With negative numbers, that process is inverted, so that there is a one on the left-hand side for zero, and it switches to zero for -1.