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Questions and Answers
What does a half adder do?
What does a half adder do?
- Adds two binary digits and produces a sum and a carry. (correct)
- Compares two binary numbers for equality.
- Subtracts two binary digits and produces a difference.
- Generates a signal based on De Morgan's law.
Which statement is accurate regarding a full subtractor?
Which statement is accurate regarding a full subtractor?
- It performs addition of binary values.
- It requires two inputs and produces a sum and borrow.
- It operates only on decimal numbers.
- It requires three inputs and produces a sum and borrow. (correct)
Which of the following represents De Morgan's law correctly?
Which of the following represents De Morgan's law correctly?
- ¬(A ∧ B) = ¬A ∨ ¬B (correct)
- A ∧ B = ¬(¬A ∨ ¬B)
- A ∨ B = ¬A ∧ ¬B
- ¬(A ∨ B) = ¬A ∧ ¬B (correct)
What is the primary function of a full adder?
What is the primary function of a full adder?
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What is the main characteristic of a half subtractor?
What is the main characteristic of a half subtractor?
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Study Notes
Half Adder
- Adds two single-bit binary numbers.
- Outputs a sum bit and a carry bit.
Full Subtractor
- Subtracts two single-bit binary numbers, along with a borrow input.
- Outputs a difference bit and a borrow bit.
De Morgan's Law
- States the negation of a conjunction is the disjunction of the negations.
- Also, the negation of a disjunction is the conjunction of the negations.
Full Adder
- Adds three single-bit binary numbers.
- Outputs a sum bit and a carry bit.
Half Subtractor
- Subtracts two single-bit binary numbers and produces a difference bit and a borrow bit.
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