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Question 10020 – Digital-Logic-Design
November 23, 2023
Number-Systems
November 23, 2023
Question 10020 – Digital-Logic-Design
November 23, 2023
Number-Systems
November 23, 2023

Digital-Logic-Design

Question 49

The number of full and half-adders required to add 16-bit numbers is

A
8 half-adders, 8 full-adders
B
1 half-adder, 15 full-adders
C
16 half-adders, 0 full-adders
D
4 half-adders, 12 full-adders
Question 49 Explanation: 
For Least Significant Bit we do not need a full adder since initially carry is not present.
But for rest of bits we need full address since carry from previous addition has to be included into the addition operation.
So, in total 1 half adder and 15 full adders are required.
Correct Answer: B
Question 49 Explanation: 
For Least Significant Bit we do not need a full adder since initially carry is not present.
But for rest of bits we need full address since carry from previous addition has to be included into the addition operation.
So, in total 1 half adder and 15 full adders are required.
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