Question

What is a potential problem of 1's complement representation of numbers?

• A. Binary subtractions are not possible
• B. There are two different representations of zero
• C. Multiplication of two numbers cannot be carried out
• D. Binary additions are not possible

Hint:

In 1's complement representation, there are two different representations for zero: +0 and -0. This causes ambiguity in operations like addition and subtraction.

Answer 1

The Correct Option is B

In 1's complement representation, there are two representations for zero: one positive zero and one negative zero. This dual representation of zero creates ambiguity in computations, as both representations could lead to different results. This is the primary issue in 1's complement arithmetic.
Thus, the correct answer is \( \boxed{\text{There are two different representations of zero}} \).