Electronics and Communication Engineering - Digital Electronics

1.
A buffer is a device that isolates other devices. Typically a buffer has
a high input impedance and a low output impedance
a high input impedance as well as output impedance
a low input impedance and a high output impedance
a low input impedance as well as output impedance
Answer: Option
Explanation:
No answer description is available. Let's discuss.

2.
Which of the following is used as switch?
J-K flip-flop
Master slave J-K flip-flop
T-flip-flop
D-flip-flop
Answer: Option
Explanation:
No answer description is available. Let's discuss.

3.
In a positive edge triggered D flip flop
D input is called direct set
Preset is called direct reset
Present and clear are called direct set and reset respectively
D input overrides other inputs
Answer: Option
Explanation:
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4.
The first contribution to logic was made by
George Boole
Copernicus
Aristotle
Shannon
Answer: Option
Explanation:
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5.
Average latency time of magnetic tape memory is of the order of
1 μ sec
1 msec
1 sec
1 minute
Answer: Option
Explanation:
No answer description is available. Let's discuss.