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The combination of two half adders is a _______.
- a)full adder
- b)Schmitt trigger
- c)Comparator
- d)half adder
Correct answer is option 'A'. Can you explain this answer?
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The combination of two half adders is a _______.a)full adderb)Schmitt ...
Answer:
- Introduction: The combination of two half adders is a full adder.
- Half Adder: A half adder is a combinational circuit that performs the addition of two 1-bit binary numbers and produces the sum and carry as outputs. It consists of two inputs, A and B, and two outputs, Sum and Carry.
- Functionality of a Half Adder:
- The Sum output is the XOR (^) of the two inputs A and B.
- The Carry output is the AND (&) of the two inputs A and B.
- Full Adder: A full adder is a combinational circuit that adds three 1-bit binary numbers and produces a sum and carry as outputs. It consists of three inputs, A, B, and Carry-in, and two outputs, Sum and Carry-out.
- Functionality of a Full Adder:
- The Sum output is the XOR (^) of the three inputs A, B, and Carry-in.
- The Carry-out output is the OR (|) of the three inputs A, B, and Carry-in, combined with the AND (&) of any two of them.
- Combination of Two Half Adders:
- To create a full adder, we need to combine two half adders.
- The inputs A and B are given to the first half adder, which produces a partial sum (Sum1) and a partial carry (Carry1).
- The partial sum (Sum1) is then given as an input, along with the Carry-in, to the second half adder.
- The second half adder produces the final sum (Sum) and the final carry (Carry-out).
- Working of the Combination:
- The first half adder adds the inputs A and B, producing a partial sum (Sum1) and a partial carry (Carry1).
- The second half adder adds the partial sum (Sum1) and the Carry-in, producing the final sum (Sum) and the final carry (Carry-out).
- Conclusion: Therefore, the combination of two half adders is a full adder because it performs the addition of three 1-bit binary numbers and produces a sum and carry as outputs.
- Introduction: The combination of two half adders is a full adder.
- Half Adder: A half adder is a combinational circuit that performs the addition of two 1-bit binary numbers and produces the sum and carry as outputs. It consists of two inputs, A and B, and two outputs, Sum and Carry.
- Functionality of a Half Adder:
- The Sum output is the XOR (^) of the two inputs A and B.
- The Carry output is the AND (&) of the two inputs A and B.
- Full Adder: A full adder is a combinational circuit that adds three 1-bit binary numbers and produces a sum and carry as outputs. It consists of three inputs, A, B, and Carry-in, and two outputs, Sum and Carry-out.
- Functionality of a Full Adder:
- The Sum output is the XOR (^) of the three inputs A, B, and Carry-in.
- The Carry-out output is the OR (|) of the three inputs A, B, and Carry-in, combined with the AND (&) of any two of them.
- Combination of Two Half Adders:
- To create a full adder, we need to combine two half adders.
- The inputs A and B are given to the first half adder, which produces a partial sum (Sum1) and a partial carry (Carry1).
- The partial sum (Sum1) is then given as an input, along with the Carry-in, to the second half adder.
- The second half adder produces the final sum (Sum) and the final carry (Carry-out).
- Working of the Combination:
- The first half adder adds the inputs A and B, producing a partial sum (Sum1) and a partial carry (Carry1).
- The second half adder adds the partial sum (Sum1) and the Carry-in, producing the final sum (Sum) and the final carry (Carry-out).
- Conclusion: Therefore, the combination of two half adders is a full adder because it performs the addition of three 1-bit binary numbers and produces a sum and carry as outputs.
Community Answer
The combination of two half adders is a _______.a)full adderb)Schmitt ...
A full adder circuit has three binary digit inputs (two input bits and one carry input bit) and two binary digit outputs, Sum bit and carry output bit.
A Full adder can be realized using two half adders as shown:
A full adder can be implemented using 2 XOR, 2 AND, 1 OR as shown in the figure:
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The combination of two half adders is a _______.a)full adderb)Schmitt triggerc)Comparatord)half adderCorrect answer is option 'A'. Can you explain this answer?
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