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Home ‣ Digital Electronics ‣ Digital Arithmetic Operations and Circuits Comments
  • Question

  • Which of the following is the primary advantage of using binary-coded decimal (BCD) instead of straight binary coding?


  • Options
  • A. Fewer bits are required to represent a decimal number with the BCD code.
  • B. BCD codes are easily converted from decimal.
  • C. the relative ease of converting to and from decimal
  • D. BCD codes are easily converted to straight binary codes.

  • Correct Answer
  • the relative ease of converting to and from decimal 

    • Digital Arithmetic Operations and Circuits problems

    Search Results

    • 1. Perform subtraction on each of the following binary numbers by taking the two's-complement of the number being subtracted and then adding it to the first number.
      01001        01100
      00011        00111

    • Options
    • A. 01100    10011
    • B. 00110    00101
    • C. 10110    10101
    • D. 00111    00100
      • Discuss
    • 2. Solving ?11 + (?2) will yield which two's-complement answer?

    • Options
    • A. 1110 1101
    • B. 1111 1001
    • C. 1111 0011
    • D. 1110 1001
      • Discuss
    • 3. Solve this binary problem: 01110010 ? 01001000 =

    • Options
    • A. 00011010
    • B. 00101010
    • C. 01110010
    • D. 00111100
      • Discuss
    • 4. What logic function is the sum output of a half-adder?

    • Options
    • A. AND
    • B. exclusive-OR
    • C. exclusive-NOR
    • D. NAND
      • Discuss
    • 5. The units for the HIGH time for a periodic wave are ________.

    • Options
    • A. seconds
    • B. hertz
    • C. cycles
    • D. %
      • Discuss
    • 6. A half-adder circuit would normally be used each time a carry input is required in an added circuit.

    • Options
    • A. True
    • B. False
      • Discuss
    • 7. Fast-look-ahead carry circuits found in most 4-bit full-adder circuits:

    • Options
    • A. determine sign and magnitude
    • B. reduce propagation delay
    • C. add a 1 to complemented inputs
    • D. increase ripple delay
      • Discuss
    • 8. Solve the following:

    • Options
    • A. 10011110
    • B. 01211110
    • C. 000100000100
    • D. 001000001000
      • Discuss
    • 9. Solve this binary problem: 01000110 ÷ 00001010 =

    • Options
    • A. 0111
    • B. 10011
    • C. 1001
    • D. 0011
      • Discuss
    • 10. One way to make a four-bit adder perform subtraction is by:

    • Options
    • A. inverting the output.
    • B. inverting the carry-in.
    • C. inverting the B inputs.
    • D. grounding the B inputs.
      • Discuss

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