Using the same flip flops
Answer: A
In a synchronous counter clock pulses are applied to all flip-flops simultaneously. Hence minimum time delay and high frequency.
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A + A . B =
Answer: C
A.B= 1 or 0, A + A.B = 0 if A is zero and A + A.B = 1 if A = 1. Hence A + A.B = A.
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A three state switch has three outputs. These are
Answer: D
Third state is floating.
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When microprocessor processes both positive and negative numbers, the representation used is
Answer: B
2's complement representation requires simple electronic circuitry.
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An OR gate has 4 inputs. One input is high and the other three are low. The output
Answer: B
In OR any input high means high output.
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Out of S, R, J, K, Preset, Clear inputs to flip flops, the synchronous inputs are
Answer: A
Preset and clear inputs are not applied in any fixed sequence.
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The device 'one shot' has
Answer: B
One shot means one stable state.
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As the number of flip flops are increased, the total propagation delay of
Answer: A
In ripple counter the clock pulses are applied to one flip- flop only.
Hence as the number of flip-flops increases the delay increases.
In synchronous counter clock pulses to all flip-flops are applied simultaneously.
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A memory system of size 16 k bytes is to be designed using memory chips which have 12 address lines and 4 data lines each. The number of such chips required to design the memory system is
Answer: C
No Explanation.
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If number of information bits is 4, the parity bits in Hamming code are located at bit positions __________ from the LSB.
Answer: B
The number of parity bits is 3. These bits are located at 20, 21, 22, i.e., 1, 2, 4th bits starting from LSB.
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