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  • Question
  • Parallel format means that:


  • Options
  • A. each digital signal has its own conductor.
  • B. several digital signals are sent on each conductor.
  • C. both binary and hexadecimal can be used.
  • D. no clock is needed.

  • Correct Answer
  • each digital signal has its own conductor. 


  • Digital Concepts problems


    Search Results


    • 1. A multiplexer has ________.

    • Options
    • A. one input and several outputs
    • B. one input and one output
    • C. several inputs and several outputs
    • D. several inputs and one output
    • Discuss
    • 2. The generic array logic (GAL) device is ________.

    • Options
    • A. one-time programmable
    • B. reprogrammable
    • C. a CMOS device
    • D. reprogrammable and a CMOS device
    • Discuss
    • 3. What kind of logic device or circuit is used to store information?

    • Options
    • A. Counter
    • B. Register
    • C. Inverter
    • D. Buffer
    • Discuss
    • 4. Serial format means digital signals are:

    • Options
    • A. sent over many conductors simultaneously.
    • B. sent over one conductor sequentially.
    • C. sent in groups of eight signals.
    • D. sent in binary coded decimal.
    • Discuss
    • 5. The output of an OR gate is LOW when ________.

    • Options
    • A. all inputs are LOW
    • B. any input is LOW
    • C. any input is HIGH
    • D. all inputs are HIGH
    • Discuss
    • 6. Which format requires fewer conductors?

    • Options
    • A. Parallel
    • B. Serial
    • C. Both are the same
    • D. Cannot tell
    • Discuss
    • 7. What is one relative disadvantage of serial transfer?

    • Options
    • A. It requires too many conductors.
    • B. Its interconnect system is complex.
    • C. It is slow.
    • D. It can only be used over very short distances.
    • Discuss
    • 8. The output of a NOT gate is HIGH when ________.

    • Options
    • A. the input is LOW
    • B. the input is HIGH
    • C. the input changes from LOW to HIGH
    • D. voltage is removed from the gate
    • Discuss
    • 9. A pulse has a period of 15 ms. Its frequency is ________.

    • Options
    • A. 6.66 Hz
    • B. 66.66 Hz
    • C. 666.66 Hz
    • D. 15 Hz
    • Discuss
    • 10. Digital representations of numerical values of quantities may BEST be described as having characteristics:

    • Options
    • A. that are difficult to interpret because they are continuously changing.
    • B. that vary constantly over a continuous range of values.
    • C. that vary in constant and direct proportion to the values they represent.
    • D. that vary in discrete steps in proportion to the values they represent.
    • Discuss


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