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Question 90

Computer Awareness Number representations Easy

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

(A) Binary substructions are not possible
(B) Binary additions are not possible
(C) Multiplication of two numbers cannot be carried out
(D) There are two different representations of zero
✓ Correct Answer: Option D Verified Solution

📘 Step-by-Step Solution & Detailed Explanation:

In 1's complement, zero has two representations: +0 (0000…0) and −0 (1111…1). This complicates comparisons and arithmetic (it needs an end-around carry). 2's complement fixes this.

Answer: (D)

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