CS121 Digital Logic Design: Adder Circuit

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Questions and Answers

What is the required number of bits for the sum when adding two 2-bit binary numbers?

  • 4-bit
  • 5-bit
  • 2-bit
  • 3-bit (correct)

How many total inputs does the adder circuit mentioned in the lecture have?

  • 4 (correct)
  • 5
  • 2
  • 3

How many outputs are designed for the adder circuit?

  • 1
  • 3 (correct)
  • 4
  • 2

What is the primary lecture topic given by Prof. Ahmed ElShafee?

<p>Digital Logic Design (D)</p>
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What semester and year is the course CS121 - Digital Logic Design offered?

<p>Spring 2024 (D)</p>
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Who is the professor teaching the CS121 - Digital Logic Design course?

<p>Prof. Ahmed ElShafee (A)</p>
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What is the main example provided in the lecture?

<p>Adder Circuit (C)</p>
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What is the course code for Digital Logic Design taught by Prof. Ahmed ElShafee?

<p>CS121 (B)</p>
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What is the course code for Digital Logic Design?

<p>CS121 (C)</p>
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Who is the professor for the Digital Logic Design course?

<p>Prof. Ahmed ElShafee (C)</p>
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In which semester is the Digital Logic Design course offered?

<p>Spring 2024 (D)</p>
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What is the example function provided in the text?

<p>f = Σm(1,3,5,7,9) + Σ d(6,12,13) (D)</p>
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Which of the following indices are included as a don’t care condition in the function?

<p>6, 12, 13 (A)</p>
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Which method is suggested to simplify the example function?

<p>Build a truth table (B)</p>
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Who is the professor for the CS121 - Digital Logic Design course in Spring 2024?

<p>Prof. Ahmed ElShafee (A)</p>
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For which condition should the output (Z) be 1 in the divisible by 3 circuit?

<p>The decimal number represented by inputs is exactly divisible by 3 (D)</p>
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Which of the following is an example of valid 8-4-2-1 BCD digits where Z=1?

<p>ABCD = 0011 (A)</p>
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What are the BCD values for which Z=1 in the provided circuit design?

<p>0000, 0011, 0110, 1001 (A)</p>
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What does BCD stand for?

<p>Binary Coded Decimal (A)</p>
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What is the decimal equivalent of the BCD input ABCD=0110?

<p>6 (D)</p>
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What is the expression for f given in the text?

<p>f = Σm(1,3,5,7,9) + Σd(6,12,13) (D)</p>
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Which combination of d, C, b, a yields an undefined output, X, for F?

<p>1, 1, 0, 0 (B)</p>
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What is the value of F for the input combination 1, 1, 0, 1?

<p>X (C)</p>
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Which minterm is not included in the expression for f?

<p>m(12) (B)</p>
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How many minterms are included in the expression for f?

<p>5 (A)</p>
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For the input combination 1, 0, 1, 0, what is the value of F?

<p>0 (B)</p>
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What set of inputs gives a defined logical value of 1 for the output F?

<p>0, 0, 1, 1 (A)</p>
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What input combination results in an output of 'd' for F?

<p>0, 1, 0, 1 (D)</p>
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