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Digital Electronics
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Combinational Logic Circuits
See What Others Are Saying!
Question
The correct output for this XOR truth table is ________.
Options
A.
B.
C.
D.
Correct Answer
More questions
1. When the 74123, a retriggerable monostable multivibrator device, ends its timing cycle it must be started all over again.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: False
2. Boolean algebra was first applied to the analysis of digital circuits by Claude Shannon at Stanford University.
Options
A. True
B. False
Show Answer
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Correct Answer: False
3. A transfer function graph illustrates the most important specifications for the Schmitt trigger devices.
Options
A. True
B. False
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Correct Answer: True
4. Whenever information is transmitted from one device to another, there is a possibility that ________.
Options
A. one device is off
B. errors will occur
C. there is a full moon
D. the data will be received as transmitted
Show Answer
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Correct Answer: errors will occur
5. The CASE control structure is used when an expression has a list of possible values.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: True
6. The 7474 has two distinct types of inputs: synchronous and asynchronous.
Options
A. True
B. False
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Correct Answer: True
7. In VHDL, each instance of a component is given a name followed by a semicolon and the name of the library primitive.
Options
A. True
B. False
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Discuss
Correct Answer: False
8. The octal number system consists of eight digits, 0 through 7.
Options
A. True
B. False
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Correct Answer: True
9. In the keypad encoder, the ring counter is implemented using ________ that responds to the
clk
input.
Options
A. SIGNAL
B. FUNCTION
C. CASE
D. PROCESS
Show Answer
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Correct Answer: PROCESS
10. Which is not a magnetic storage device?
Options
A. Magnetic disk
B. Magnetic tape
C. Magneto-optical disk
D. Optical disk
Show Answer
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Discuss
Correct Answer: Optical disk
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