Binary Adders and Subtractors Quiz
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Questions and Answers

What is the main role of binary adders and subtractors in digital systems?

  • To perform arithmetic operations (correct)
  • To process floating-point calculations
  • To manage data storage
  • To enhance graphical outputs

    • Binary adders and subtractors can perform addition and subtraction without the need for additional hardware using two's complement method.

    True

    What happens to the performance of binary adders and subtractors as the size of the numbers increases?

    Carry propagation delay increases.

    In a full adder, when K=0, the operation is performed on __________ numbers in addition.

    <p>four-bit</p> Signup and view all the answers

    Match the following components with their function in a binary adder-subtractor:

    <p>C0 = Initial carry input S0 = Least significant bit of the sum/difference C3 = Total carry output A1, A2, A3 = Inputs to the second, third, and fourth full adders</p> Signup and view all the answers

    What determines whether a Binary Adder-Subtractor performs addition or subtraction?

    <p>The value of the control signal K</p> Signup and view all the answers

    A half adder can handle more than two input bits.

    <p>False</p> Signup and view all the answers

    What is the purpose of a Binary Subtractor?

    <p>To perform the subtraction of two binary numbers.</p> Signup and view all the answers

    The output of the full adder when K=1 is obtained by adding A and the ______, represented as A + (B0').

    <p>complement of B0</p> Signup and view all the answers

    Match the following components with their functions in a Binary Adder-Subtractor.

    <p>Half Adder = Adds two one-bit numbers Full Adder = Adds multiple bits with carry propagation Control signal K = Determines operation (addition or subtraction) Two's Complement = Used for binary subtraction</p> Signup and view all the answers

    What is the initial operation performed by a Binary Subtractor before adding to the original number?

    <p>Negates to get its two's complement</p> Signup and view all the answers

    A Binary Adder can only sum two binary numbers of one bit each.

    <p>False</p> Signup and view all the answers

    How many full adders are required for a 4-bit binary operation?

    <p>4</p> Signup and view all the answers

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