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Discussion
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Digital Electronics
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Number Systems and Codes
See What Others Are Saying!
Question
Convert 1731
8
to decimal.
Options
A. 216.4
B. 985
C. 3D9
D. 1123
Correct Answer
985
More questions
1. The content of a simple programmable logic device (PLD) consists of:
Options
A. fuse-link arrays
B. thousands of basic logic gates
C. advanced sequential logic functions
D. thousands of basic logic gates and advanced sequential logic functions
Show Answer
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Discuss
Correct Answer: thousands of basic logic gates and advanced sequential logic functions
2. A counter has a specified sequence of states, but a shift register does not.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: True
3. ROMs are used to store data on a permanent basis.
Options
A. True
B. False
Show Answer
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Correct Answer: True
4. A microprocessor with the necessary support circuits will include at least two memory ICs: ROM or EPROM, and a RAM.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: True
5. What is the acquisition time of the AD1154 sample-and-hold IC?
Options
A. 1.5 µs
B. 2.5 µs
C. 3.5 µs
D. 4.5 µs
Show Answer
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Correct Answer: 3.5 µs
6. Which of the figures shown below represents the exclusive-NOR gate?
Options
A. a
B. b
C. c
D. d
Show Answer
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Correct Answer: b
7. The device that places its input data onto one of several outputs is a ________.
Options
A. demultiplexer
B. multiplexer
C. comparator
D. counter
Show Answer
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Discuss
Correct Answer: demultiplexer
8. Digital computers use an easier method to subtract binary numbers, called one's complement.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: False
9. With interrupt-driven I/O, if two or more devices request service at the same time, ________.
Options
A. the device closest to the CPU gets priority
B. the device that is fastest gets priority
C. the device assigned the highest priority is serviced first
D. the system is likely to crash
Show Answer
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Correct Answer: the device assigned the highest priority is serviced first
10. Asynchronous counters are often called ________ counters.
Options
A. toggle
B. ripple
C. binary
D. flip-flop
Show Answer
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Discuss
Correct Answer: ripple
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