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Digital Computer Electronics
Comments
Question
A _____ TTL device can sink up to 16mA and can source up to 400 MA.
Options
A. Low-power
B. high-power
C. Standard
D. Schottky
E. None of the above
Correct Answer
Standard
Digital Computer Electronics problems
Search Results
1. Digital design often starts by constructing a _____ table.
Options
A. Standard
B. Two-stage
C. Truth
D. Two-dinensional
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: Truth
2. 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
Show Answer
Scratch Pad
Discuss
Correct Answer: 000000
3. The functional difference between SR flip-flop and JK flip-flop is that
Options
A. JK flip-flop is faster than SR flip-flop
B. JK flip-flop has a feed back path
C. JK flip-flop accepts both inputs 1
D. JK flip-flop does not require external clock
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: JK flip-flop accepts both inputs 1
4. The simplified form of the Boolean expression (X + Y + XY)(X + Z) is
Options
A. X + Y + Z
B. XY + YZ
C. X + YZ
D. XZ + Y
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: X + YZ
5. A combinational logic circuit which is used when it is desired to send data from two or more source through a single transmission line is known as
Options
A. encoder
B. decoder
C. multiplexer
D. demultiplexer
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: multiplexer
6. With a NAND latch a low R and a low S produce a _____ condition.
Options
A. race
B. set
C. reset
D. no change
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: race
7. An OR gate can be imagined as
Options
A. switches connected in series
B. switches connected in parallel
C. MOS transistors connected in series
D. All of the above
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: switches connected in parallel
8. A positive AND gate is also a negative
Options
A. NAND gate
B. NOR gate
C. AND gate
D. OR gate
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: OR gate
Explanation:
9. How many inputs signals can a gate have?
Options
A. one
B. more than one
C. two only
D. both (a) and (b)
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: both (a) and (b)
10. Conversion of decimal number 67
10
to it's octal number equivalent is
Options
A. 100
8
B. 103
8
C. 109
8
D. 99
8
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: 103
8
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