UGC NET CS 2005 Dec-Paper-2
March 31, 2024
Question 4596 – UGC NET CS 2006 June-Paper-2
March 31, 2024
UGC NET CS 2005 Dec-Paper-2
March 31, 2024
Question 4596 – UGC NET CS 2006 June-Paper-2
March 31, 2024

UGC NET CS 2005 Dec-Paper-2

Question 7
A half-adder is also known as :
A
AND Circuit
B
NAND Circuit
C
NOR Circuit
D
EX-OR Circuit
Question 7 Explanation: 
→ The half adder adds two single binary digits A and B. It has two outputs, sum (S) and carry (C). The carry signal represents an overflow into the next digit of a multi-digit addition. The value
of the sum is 2C + S. The simplest half-adder design incorporates an XOR gate for S and an AND gate for C. The Boolean logic for the sum (in this case S) will be A′B + AB′ whereas for the carry (C) will be AB.
Correct Answer: D
Question 7 Explanation: 
→ The half adder adds two single binary digits A and B. It has two outputs, sum (S) and carry (C). The carry signal represents an overflow into the next digit of a multi-digit addition. The value
of the sum is 2C + S. The simplest half-adder design incorporates an XOR gate for S and an AND gate for C. The Boolean logic for the sum (in this case S) will be A′B + AB′ whereas for the carry (C) will be AB.

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