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Digital Concepts
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Question
In the decimal numbering system, what is the MSD?
Options
A. The middle digit of a stream of numbers
B. The digit to the right of the decimal point
C. The last digit on the right
D. The digit with the most weight
Correct Answer
The digit with the most weight
Digital Concepts problems
Search Results
1. What is an analog-to-digital converter?
Options
A. It makes digital signals.
B. It takes analog signals and puts them in digital format.
C. It allows the use of digital signals in everyday life.
D. It stores information on a CD.
Show Answer
Scratch Pad
Discuss
Correct Answer: It takes analog signals and puts them in digital format.
2. In positive logic, ________.
Options
A. a HIGH = 1, a LOW = 0
B. a LOW = 1, a HIGH = 0
C. only HIGHs are present
D. only LOWs are present
Show Answer
Scratch Pad
Discuss
Correct Answer: a HIGH = 1, a LOW = 0
3. Which format can send several bits of information faster?
Options
A. Parallel
B. Serial
C. Both are the same
D. Cannot tell
Show Answer
Scratch Pad
Discuss
Correct Answer: Parallel
4. Digital representations of numerical values of quantities may BEST be described as having characteristics:
Options
A. that are difficult to interpret because they are continuously changing.
B. that vary constantly over a continuous range of values.
C. that vary in constant and direct proportion to the values they represent.
D. that vary in discrete steps in proportion to the values they represent.
Show Answer
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Discuss
Correct Answer: that vary in discrete steps in proportion to the values they represent.
5. A pulse has a period of 15 ms. Its frequency is ________.
Options
A. 6.66 Hz
B. 66.66 Hz
C. 666.66 Hz
D. 15 Hz
Show Answer
Scratch Pad
Discuss
Correct Answer: 66.66 Hz
6. The output of an AND gate is LOW ________.
Options
A. all the time
B. when any input is LOW
C. when any input is HIGH
D. when all inputs are HIGH
Show Answer
Scratch Pad
Discuss
Correct Answer: when any input is LOW
7. Which of the following is a semiconductor memory?
Options
A. RAM
B. MAR
C. CD-ROM
D. CD
Show Answer
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Discuss
Correct Answer: RAM
8. A periodic digital waveform has a pulse width (t
w
) of 6 ms and a period (T) of 18 ms. The duty cycle is ________.
Options
A. 3.3%
B. 33.3%
C. 6%
D. 18%
Show Answer
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Discuss
Correct Answer: 33.3%
9. Convert the fractional binary number 0001.0010 to decimal.
Options
A. 1.40
B. 1.125
C. 1.20
D. 1.80
Show Answer
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Discuss
Correct Answer: 1.125
10. PLCC packages have leads on ________.
Options
A. one side
B. two sides
C. three sides
D. four sides
Show Answer
Scratch Pad
Discuss
Correct Answer: four sides
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