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Home ‣ Digital Electronics ‣ Number Systems and Codes Comments
  • Question

  • The ________ code represents alphanumeric characters as seven-bit binary numbers.


  • Options
  • A. ASCII
  • B. octal
  • C. alphanumeric
  • D. Boy Scout

  • Correct Answer
  • ASCII 

    • Number Systems and Codes problems

    Search Results

    • 1. The MSB of 11001 is ________.

    • Options
    • A. 1
    • B. 1100
    • C. C
    • D. 1916
      • Discuss
    • 2. Resistors?usually 300 Ω apiece?inserted between a decoder and a 7-segment display are ________.

    • Options
    • A. pull-up resistors to keep logic HIGH when the input is open
    • B. sense resistors to enable a test of logic levels
    • C. current limiting resistors for the 7-segment display
    • D. surge resistors to prevent damage from power-line variations
      • Discuss
    • 3. Adding a zero to the leftmost bit of an ASCII code is called ________.

    • Options
    • A. extra zero
    • B. zero padding
      • Discuss
    • 4. A complete alphanumeric code would include 26 lowercase letters, 26 uppercase letters, 10 numeric digits, 7 punctuation marks, and anywhere from ________ to ________ other characters.

    • Options
    • A. 5, 10
    • B. 10, 15
    • C. 10, 20
    • D. 20, 40
      • Discuss
    • 5. Hexadecimal AA is ________ in decimal.

    • Options
    • A. 16510
    • B. 17010
    • C. 18610
    • D. 17616
      • Discuss
    • 6. The Ex-NOR is sometimes called the equality gate.

    • Options
    • A. True
    • B. False
      • Discuss
    • 7. The odd/even parity system would require a sixth bit to be added to a 4-bit system.

    • Options
    • A. True
    • B. False
      • Discuss
    • 8. In an exclusive-OR, both inputs cannot be HIGH to provide a HIGH output.

    • Options
    • A. True
    • B. False
      • Discuss
    • 9. Using the CPLD design environment, we can simulate any combinations of inputs and observe the resulting output to check for proper circuit operation.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. In a parity generator circuit, an error is signaled on an error indicator.

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

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