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Home ‣ Digital Electronics ‣ Ex-OR and Ex-NOR Gates See What Others Are Saying!
  • Question

  • Parity systems are defined as either________ or ________ and will add an extra ________ to the digital information being transmitted.


  • Options
  • A. positive, negative, byte
  • B. odd, even, bit
  • C. upper, lower, digit
  • D. on, off, decimal

  • Correct Answer
  • odd, even, bit 

    • More questions

    • 1. A coprocessor is a microprocessor designed with a limited instruction set optimized to perform arithmetic operations very quickly.

    • Options
    • A. True
    • B. False
      • Discuss
    • 2. With four J-K flip-flops wired as an asynchronous counter, the first output change of divider #4 indicates a count of how many input clock pulses?

    • Options
    • A. 16
    • B. 8
    • C. 4
    • D. 2
      • Discuss
    • 3. Which of the following procedures could be used to check the parallel loading feature of a counter?

    • Options
    • A. Preset the LOAD inputs, set the CLR to its active level, and check to see that the Q outputs match the values preset into the LOAD inputs.
    • B. Apply LOWs to the parallel DATA inputs, pulse the CLK input, and check for LOWs on all the Q outputs.
    • C. Apply HIGHs to all the DATA inputs, pulse the CLK and CLR inputs, and check to be sure that the Q outputs are all LOW.
    • D. Apply HIGHs to all the Q terminals, pulse the CLK, and check to see if the DATA terminals now match the Q outputs.
      • Discuss
    • 4. A one-shot is a special type of multivibrator that must be triggered to produce each output pulse.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. For a three-input OR gate, with the input waveforms as shown below, which output waveform is correct?


    • Options
    • A. a
    • B. b
    • C. c
    • D. d
      • Discuss
    • 6. When data input I1 of a 74148 octal-to-binary encoder is active, the data output is:

      A0 = 0
      A1 = 0
      A2 = 1


    • Options
    • A. True
    • B. False
      • Discuss
    • 7. Parallel in/parallel out registers have parallel input and output busses.

    • Options
    • A. True
    • B. False
      • Discuss
    • 8. For the inputs shown in the given figure, the output is ________.


    • Options
    • A. 1
    • B. 0 
      • Discuss
    • 9. Simple gate circuits, combinational logic, and transparent S-R flip-flops are synchronous.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. Solve the network in the figure given below for X.


    • Options
    • A. A + BC + D
    • B. ((A + B)C) + D
    • C. D(A + B + C)
    • D. (AC + BC)D
      • Discuss

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