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Home ‣ Digital Electronics ‣ Digital Concepts See What Others Are Saying!
  • Question

  • In ________ the quantities are not represented by continuously variable indicators.


  • Options
  • A. analog representation
  • B. digital representation
  • C. signal representation
  • D. computer representation

  • Correct Answer
  • digital representation 

    • More questions

    • 1. In ECL, the HIGH and LOW levels are determined by which transistor in a differential amplifier is conducting more.

    • Options
    • A. True
    • B. False
      • Discuss
    • 2. A 555 operating as a monostable multivibrator has a C1 = 0.01 µF. Determine R1 for a pulse width of 2 ms.

    • Options
    • A. 200 kΩ
    • B. 182 kΩ
    • C. 91 kΩ
    • D. 182 Ω
      • Discuss
    • 3. A microcontroller differs from a microprocessor in that it has several ________ ports and ________ built into its architecture, making it better suited for ________ applications.

    • Options
    • A. communication, PROMs, control
    • B. parallel, logic gates, processing
    • C. input/output, memory, control
    • D. data, memory, decoding
      • Discuss
    • 4. The product-of-sums (POS) is basically the ORing of ANDed terms.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. Four positive edge-triggered D flip-flops are used to store a 4-bit binary number as shown below. Determine if the circuit is functioning properly, and if not, what might be wrong.


    • Options
    • A. The circuit is functioning properly.
    • B. Q2 is incorrect; the flip-flop is probably bad.
    • C. The input to flip-flop 3 (D2) is probably wrong; check the source of D2.
    • D. A bad connection probably exists between FF-3 and FF-4, causing FF-3 not to reset.
      • Discuss
    • 6. The signal used to identify edge-triggered flip-flops is ________.

    • Options
    • A. a bubble on the clock input
    • B. an inverted "L" on the output
    • C. the letter "E" on the enable input
    • D. a triangle on the clock input
      • Discuss
    • 7. The figure given below is an example of the implementation of AND-OR-INVERT logic.


    • Options
    • A. True
    • B. False
      • Discuss
    • 8. The circuit given below implements the equation, .


    • Options
    • A. True
    • B. False
      • Discuss
    • 9. A coprocessor is a microprocessor designed with a limited instruction set optimized to perform arithmetic operations very quickly.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. 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

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