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Digital Computer Electronics
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Question
An OR gate has 6 inputs. What is the only input word that produces a 0 output?
Options
A. 000000
B. 000111
C. 111000
D. 111111
E. None of the above
Correct Answer
000000
More questions
1. What would you ask to determine if the display is working?
Options
A. Is there a video cursor or action on the screen?
B. Did the computer beep or chime?
C. Is there high voltage static on the screen
D. Is the brightness or contrast turned up or down?
E. All of the above
Show Answer
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Correct Answer: All of the above
2. _____ use standardized symbols to represent an algorithm.
Options
A. Flowcharts
B. Flow diagrams
C. IPO charts
D. Pseudocharts
E. Pseudocode
Show Answer
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Correct Answer: Flowcharts
3. Data structuring is refined through a process called
Options
A. structuring process
B. hierarchical structure
C. normalization
D. Relation structure
E. None of the above
Show Answer
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Correct Answer: normalization
4. If a sine wave has a frequency of 500 Hz, the period in seconds of the sine wave is:
Options
A. 5000
B. 0.003
C. 0.02
D. 0.002.
E. None of the above
Show Answer
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Correct Answer: 0.002.
5. What resistance in ohms should be displayed when testing a speaker in a computer?
Options
A. Q Ohms
B. 16 Ohms
C. -200 Ohms
D. Unlimited Ohms
E. None of the above
Show Answer
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Discuss
Correct Answer: 16 Ohms
6. Which of the following commands is used to display the filenames in multiple columns?
Options
A. ls
B. ls -1
C. ls -x
D. lc
E. None of the above
Show Answer
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Discuss
Correct Answer: ls -x
7. The systems conversion technique of totally removing the existing system and immediately implementing the new system is called a
Options
A. pilot conversion
B. crash conversion
C. phased conversion
D. parallel run
E. None of the above
Show Answer
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Correct Answer: crash conversion
8. The cray X-MP, IBM 3090 and connection machine can he characterized as
Options
A. SISD
B. SIMD
C. MISD
D. MIMD
E. None of the above
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Correct Answer: SIMD
9. A multiple-form file management system
Options
A. lets you define different forms for different operations
B. lets you create a look-up form with an associated read-only password to prevent access by unauthorized users
C. both (a) and (b)
D. allow you to entry data in all the forms
E. None of the above
Show Answer
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Correct Answer: both (a) and (b)
10. A bus is a group of _____ carrying digital signals.
Options
A. wires
B. gates
C. transistors
D. registers
E. None of the above
Show Answer
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Discuss
Correct Answer: wires
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