Computer Science for IGCSE & O level - Data Representation (Section 4 - No. 9)
Which of the following are true about two's complement?
It is a method for representing signed integers.
It uses the most significant bit as a sign bit.
It simplifies arithmetic operations like addition and subtraction.
It's a highly efficient method to store all numbers.
Explication
Two's complement is used to show the different numbers with signs, and helps simplify the calculations.