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Digital Concepts
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Question
Serial format means digital signals are:
Options
A. sent over many conductors simultaneously.
B. sent over one conductor sequentially.
C. sent in groups of eight signals.
D. sent in binary coded decimal.
Correct Answer
sent over one conductor sequentially.
Digital Concepts problems
Search Results
1. The output of an OR gate is LOW when ________.
Options
A. all inputs are LOW
B. any input is LOW
C. any input is HIGH
D. all inputs are HIGH
Show Answer
Scratch Pad
Discuss
Correct Answer: all inputs are LOW
2. In a certain digital waveform, the period is four times the pulse width. The duty cycle is ________.
Options
A. 0%
B. 25%
C. 50%
D. 100%
Show Answer
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Correct Answer: 25%
3. Convert the fractional binary number 10010.0100 to decimal.
Options
A. 24.50
B. 18.25
C. 18.40
D. 16.25
Show Answer
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Discuss
Correct Answer: 18.25
4. How many binary bits are necessary to represent 748 different numbers?
Options
A. 9
B. 7
C. 10
D. 8
Show Answer
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Discuss
Correct Answer: 10
5. Give the decimal value of binary 10010.
Options
A. 6
10
B. 9
10
C. 18
10
D. 20
10
Show Answer
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Discuss
Correct Answer: 18
10
6. What kind of logic device or circuit is used to store information?
Options
A. Counter
B. Register
C. Inverter
D. Buffer
Show Answer
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Discuss
Correct Answer: Register
7. The generic array logic (GAL) device is ________.
Options
A. one-time programmable
B. reprogrammable
C. a CMOS device
D. reprogrammable and a CMOS device
Show Answer
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Correct Answer: reprogrammable
8. A multiplexer has ________.
Options
A. one input and several outputs
B. one input and one output
C. several inputs and several outputs
D. several inputs and one output
Show Answer
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Correct Answer: several inputs and one output
9. Parallel format means that:
Options
A. each digital signal has its own conductor.
B. several digital signals are sent on each conductor.
C. both binary and hexadecimal can be used.
D. no clock is needed.
Show Answer
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Discuss
Correct Answer: each digital signal has its own conductor.
10. Which format requires fewer conductors?
Options
A. Parallel
B. Serial
C. Both are the same
D. Cannot tell
Show Answer
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Discuss
Correct Answer: Serial
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