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Comments
Question
An XOR gate recognizes only words with an _____ number of 1's.
Options
A. even
B. odd
C. different
D. All of the above
E. None of the above
Correct Answer
odd
Digital Computer Electronics problems
Search Results
1. An AND gate has 7 inputs. How many input word are in its truth table?
Options
A. 64
B. 32
C. 16
D. 128
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: 128
2. Conversion of binary number 1100011
2
to hexadecimal is
Options
A. 63
16
B. 57
16
C. 46
16
D. 40
16
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: 63
16
3. The _____ is a sequence of instructions that tells the computer how to process the data.
Options
A. data
B. program
C. controls
D. instruction
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: program
4. Which of the following logic families use bipolar transistors?
Options
A. TTL
B. GaAS
C. NMOS
D. CMOS
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: TTL
5. An AND gate has 7 inputs, what is the only input word that produces a 1 output?
Options
A. 0000000
B. 0001111
C. 1110000
D. 1111111
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: 1111111
6. The XOR gates are ideal for testing parity because even-parity words produce a _____ output and odd-parity words produce a _____ output
Options
A. low, high
B. high, low
C. odd, even
D. even, odd
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: low, high
7. When an inverter is placed between both inputs of an SR flip-flop, the resulting flip-flop is
Options
A. JK flip-flop
B. D flip-flop
C. T flip-flop
D. Master slave JK flip-flop
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: D flip-flop
8. A preliminary guide for comparing the simplicity of logic circuits is to count the number of input _____ leads.
Options
A. wire
B. bus
C. gate
D. All of the above
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: gate
9. The clock signals are used in sequential logic circuits
Options
A. to tell the time of the day
B. to tell how much time has elapsed since the system was turned on
C. to carry serial data signals
D. to synchronize events in various parts of a system
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: to synchronize events in various parts of a system
10. Which of the following electronic component is not found in ordinary ICs?
Options
A. diodes
B. resistors
C. transistors
D. inductors
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: inductors
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