COMPUTER SCIENCE AND ENGINEERING
COMPUTER ORGANIZATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -Implementation of Full Subtractor using Half Subtractors – 2 Half Subtractors and an OR gate is required to implement a Full Subtractor.
Detailed explanation-2: -Explanation: A full subtractor has 3 input bits and two outputs bits BORROW and DIFFERENCE. The full subtractor can be implemented using two half subtractors and an OR gate. 10. The output of a subtractor is given by (if A, B and X are the inputs).
Detailed explanation-3: -The combinational circuit of a full subtractor executes the operation of subtraction on three binary bits generating outputs for the difference D and borrow B-out. Exactly like the binary adder circuit, the full subtractor can also be imagined as two half subtractors connected together as shown below.
Detailed explanation-4: -A full subtractor is a combinational circuit that performs subtraction involving three bits, namely A (minuend), B (subtrahend), and Bin (borrow-in) . It accepts three inputs: A (minuend), B (subtrahend) and a Bin (borrow bit) and it produces two outputs: D (difference) and Bout (borrow out).