Analog vs Digital Signals
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Questions and Answers

What are the two voltage levels used to represent states in digital systems?

  • True and false
  • On and off
  • High and low (correct)
  • Positive and negative

    • What is the name given to the two-state number system used in digital systems?

  • Binary (correct)
  • Decimal
  • Octal
  • Hexadecimal

    • What is the name given to a single binary digit?

  • Word
  • Nibble
  • Byte
  • Bit (correct)

    • In addition to voltage levels, what other methods can be used to represent binary states?

    <p>Current levels and pits/lands on CDs or DVDs (D)</p> Signup and view all the answers

    What is the purpose of a timing diagram in digital systems?

    <p>To show the timing of signals (D)</p> Signup and view all the answers

    What is the advantage of parallel data transfer compared to serial data transfer?

    <p>Faster data transfer rate (D)</p> Signup and view all the answers

    Which of the following characteristics of a pulse is defined as the time it takes for the signal to transition from one state to another?

    <p>Rise time (C)</p> Signup and view all the answers

    What is the term used to describe the ratio of the pulse duration to the total cycle time in a digital waveform?

    <p>Duty cycle (A)</p> Signup and view all the answers

    What is the name given to the highest voltage level in a digital waveform?

    <p>Amplitude (A)</p> Signup and view all the answers

    Which of the following represents a group of bits used to represent numbers, symbols, or characters in digital systems?

    <p>Code (B)</p> Signup and view all the answers

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