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Choose the correct option for the following two statements: A: 1’s complement circuit is more complex than that of 2’s complement method. B: The extra carry is considered in 1’s complement whereas it is disregarded in 2’s complement method.

Choose the correct option for the following two statements: A: 1’s complement circuit is more complex than that of 2’s complement method. B: The extra carry is considered in 1’s complement whereas it is disregarded in 2’s complement method. Correct Answer B is true, A is false

1’s complement circuit:

Complement each bit. For a 3 digit binary number be b2 b1 b0

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2’s complement circuit:

1. Complement each bit

2. Add 1

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So statement A is wrong since 2’s complement circuit is more complex than the complemented circuit.

Explanation Regarding statement B:

The given statement is from the Arithmetic of 1’s complement and 2’s complement criteria.

In case of subtraction of number by

1) 1’s complement method → carry is ended around (considered)

2) 2’s complement method → carry is discarded.

So option 3 is correct.

A is false but B is true.

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