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

  • What is one disadvantage of the ripple-carry adder?


  • Options
  • A. The interconnections are more complex.
  • B. More stages are required to a full adder.
  • C. It is slow due to propagation time.
  • D. All of the above.

  • Correct Answer
  • It is slow due to propagation time. 

    • Digital Arithmetic Operations and Circuits problems

    Search Results

    • 1. The summing outputs of a half- or full-adder are designated by which Greek symbol?

    • Options
    • A. omega
    • B. theta
    • C. lambda
    • D. sigma
      • Discuss
    • 2. How many inputs must a full-adder have?

    • Options
    • A. 2
    • B. 3
    • C. 4
    • D. 5
      • Discuss
    • 3. The binary subtraction 0 ? 0 =

    • Options
    • A. difference = 0
      borrow = 0
    • B. difference = 1
      borrow = 0
    • C. difference = 1
      borrow = 1
    • D. difference = 0
      borrow = 1
      • Discuss
    • 4. Add the following hex numbers: 011016 + 1001016

    • Options
    • A. 1012016
    • B. 1002016
    • C. 1112016
    • D. 0012016
      • Discuss
    • 5. Convert each of the decimal numbers to 8-bit two's-complement form and then perform subtraction by taking the two's-complement and adding.


    • Options
    • A. 0001  0011
    • B. 0000  1110
    • C. 0010  1110
    • D. 1110  0000
      • Discuss
    • 6. When 1100010 is divided by 0101, what is the decimal remainder?

    • Options
    • A. 2
    • B. 3
    • C. 4
    • D. 6
      • Discuss
    • 7. With a 50 kHz clock frequency, six bits can be serially entered into a shift register in ________.

    • Options
    • A. 12 µs
    • B. 120 µs
    • C. 12 ms
    • D. 120 ms
      • Discuss
    • 8. Ring shift and Johnson counters are:

    • Options
    • A. synchronous counters
    • B. aynchronous counters
    • C. true binary counters
    • D. synchronous and true binary counters
      • Discuss
    • 9. How is a strobe signal used when serially loading a shift register?

    • Options
    • A. to turn the register on and off
    • B. to control the number of clocks
    • C. to determine which output Qs are used
    • D. to determine the FFs that will be used
      • Discuss
    • 10. What is a shift register that will accept a parallel input, or a bidirectional serial load and internal shift features, called?

    • Options
    • A. tristate
    • B. end around
    • C. universal
    • D. conversion
      • Discuss

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