Computer Science for IGCSE & O level - Data Representation (Section 16 - No. 14)

How does two's complement representation handle negative numbers?

By using a leading '1' for positive numbers and a leading '0' for negative numbers.

By inverting all the bits of the positive counterpart.

By inverting all the bits and adding 1 to the result.

By using a separate sign bit.

Two's complement inverts the bits and adds 1 to the binary representation of a positive number to obtain its negative equivalent.