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Home ‣ Digital Electronics ‣ Number Systems and Codes See What Others Are Saying!
  • Question

  • How many bits are in an ASCII character?


  • Options
  • A. 16
  • B. 8
  • C. 7
  • D. 4

  • Correct Answer
  • 7 

    • More questions

    • 1. Implementing the expression using NAND logic, we get:


    • Options
    • A. (A)
    • B. (B)
    • C. (C)
    • D. (D)
      • Discuss
    • 2. One characteristic of a ring counter is that the modulus is equal to the number of flip-flops in the register and, consequently, there are never any unused or invalid states.

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. Fan-out is specified in terms of ________.

    • Options
    • A. voltage
    • B. current
    • C. wattage
    • D. unit loads
      • Discuss
    • 4. A decimal number is converted to BCD by replacing each decimal digit with the appropriate 3-bit binary code.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. The following waveform pattern is for a(n) ________.


    • Options
    • A. 2-input AND gate
    • B. 2-input OR gate
    • C. Exclusive-OR gate
    • D. None of the above
      • Discuss
    • 6. Implementing the expression using NAND logic, we get:


    • Options
    • A. (A)
    • B. (B)
    • C. (C)
    • D. (D)
      • Discuss
    • 7. Referring to the GAL diagram, which is the correct logic function?


    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 8. From the truth table below, determine the standard SOP expression.


    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 9. What is the significance of the inverted triangles on the outputs of the device in the given figure?


    • Options
    • A. They represent inverters and mean that the outputs are active-LOW.
    • B. They represent buffers and mean that the outputs can drive 40 TTL loads, instead of the normal 10.
    • C. It means that the outputs will be active only if a change has occurred at that memory location since the last read/write cycle.
    • D. The outputs are tristated.
      • Discuss
    • 10. The Boolean SOP expression obtained from the truth table below is ________.


    • Options
    • A.
    • B.
    • C.
    • D. None of these
      • Discuss

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