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Assertion (A): In general, asynchronous circuits are considerably faster than synchronous circuits.
Reason (R): In an asynchronous circuit, events can occur after one event is completed and there is no need to wait for a clock pulse.
Reason (R): In an asynchronous circuit, events can occur after one event is completed and there is no need to wait for a clock pulse.
- a)Both A and R are true and R is the correct explanation of A
- b)Both A and R are true but R is not the correct explanation of A
- c)A is true but R is false
- d)A is false but R is true
Correct answer is option 'A'. Can you explain this answer?
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Assertion (A): In general, asynchronous circuits are considerably fast...
Assertion (A): In general, asynchronous circuits are considerably faster than synchronous circuits.
Reason (R): In an asynchronous circuit, events can occur after one event is completed, and there is no need to wait for a clock pulse.
Explanation:
Asynchronous Circuits:
Asynchronous circuits are digital circuits that do not rely on a global clock signal to synchronize the operation of different components. Instead, the individual components communicate with each other using handshaking protocols, where one component signals the completion of its operation to the other component.
Synchronous Circuits:
Synchronous circuits, on the other hand, are digital circuits that rely on a global clock signal to synchronize the operation of all components. The clock signal ensures that all components perform their operations in a synchronized manner.
Comparison:
Now, let's compare the speed of asynchronous and synchronous circuits.
1. Latency:
In synchronous circuits, the clock signal imposes a minimum delay or latency on the circuit's operation. All components have to wait for the clock signal before they can start their operations. This latency can limit the overall speed of the circuit.
In asynchronous circuits, there is no need to wait for a clock signal. As soon as one event is completed, the next event can start. This lack of synchronization overhead can lead to lower latency and faster operation.
2. Pipelining:
In synchronous circuits, pipelining is often used to improve performance. Pipelining breaks down the operations into smaller stages, and each stage can operate in parallel. However, pipelining introduces additional latency due to the synchronization between pipeline stages.
In asynchronous circuits, pipelining can be implemented without the need for explicit synchronization between stages. This can lead to higher throughput and faster operation.
3. Power Consumption:
Synchronous circuits consume power even when they are idle because the clock signal continues to operate. This constant power consumption can be a disadvantage in terms of energy efficiency.
In asynchronous circuits, power consumption is reduced as components only consume power when they are actively performing operations. This can lead to improved energy efficiency.
Conclusion:
In general, asynchronous circuits are considerably faster than synchronous circuits due to lower latency, the ability to implement efficient pipelining, and reduced power consumption. Therefore, Assertion (A) is true.
The reason (R) provided is also valid as it explains the advantage of asynchronous circuits in terms of not having to wait for a clock pulse. Therefore, Reason (R) is the correct explanation of Assertion (A). Hence, the correct answer is option 'A'.
Reason (R): In an asynchronous circuit, events can occur after one event is completed, and there is no need to wait for a clock pulse.
Explanation:
Asynchronous Circuits:
Asynchronous circuits are digital circuits that do not rely on a global clock signal to synchronize the operation of different components. Instead, the individual components communicate with each other using handshaking protocols, where one component signals the completion of its operation to the other component.
Synchronous Circuits:
Synchronous circuits, on the other hand, are digital circuits that rely on a global clock signal to synchronize the operation of all components. The clock signal ensures that all components perform their operations in a synchronized manner.
Comparison:
Now, let's compare the speed of asynchronous and synchronous circuits.
1. Latency:
In synchronous circuits, the clock signal imposes a minimum delay or latency on the circuit's operation. All components have to wait for the clock signal before they can start their operations. This latency can limit the overall speed of the circuit.
In asynchronous circuits, there is no need to wait for a clock signal. As soon as one event is completed, the next event can start. This lack of synchronization overhead can lead to lower latency and faster operation.
2. Pipelining:
In synchronous circuits, pipelining is often used to improve performance. Pipelining breaks down the operations into smaller stages, and each stage can operate in parallel. However, pipelining introduces additional latency due to the synchronization between pipeline stages.
In asynchronous circuits, pipelining can be implemented without the need for explicit synchronization between stages. This can lead to higher throughput and faster operation.
3. Power Consumption:
Synchronous circuits consume power even when they are idle because the clock signal continues to operate. This constant power consumption can be a disadvantage in terms of energy efficiency.
In asynchronous circuits, power consumption is reduced as components only consume power when they are actively performing operations. This can lead to improved energy efficiency.
Conclusion:
In general, asynchronous circuits are considerably faster than synchronous circuits due to lower latency, the ability to implement efficient pipelining, and reduced power consumption. Therefore, Assertion (A) is true.
The reason (R) provided is also valid as it explains the advantage of asynchronous circuits in terms of not having to wait for a clock pulse. Therefore, Reason (R) is the correct explanation of Assertion (A). Hence, the correct answer is option 'A'.
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Community Answer
Assertion (A): In general, asynchronous circuits are considerably fast...
The correct answer is 1. Both A and R are true and R is the correct explanation of A.
Explanation:
- Assertion (A): In general, asynchronous circuits are considerably faster than synchronous circuits.
- This statement is true. Asynchronous circuits do not rely on a clock signal to synchronize operations, which allows them to process events as soon as the necessary inputs are ready, leading to potentially faster operation compared to synchronous circuits.
- Reason (R): In an asynchronous circuit, events can occur after one event is completed, and there is no need to wait for a clock pulse.
- This statement is also true. The absence of a clock pulse in asynchronous circuits allows events to be processed immediately after the previous event is completed, without waiting for a clock cycle, which is why asynchronous circuits can be faster.
Since the reason (R) correctly explains the assertion (A), the correct answer is 1. Both A and R are true and R is the correct explanation of A.
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Assertion (A): In general, asynchronous circuits are considerably faster than synchronous circuits.Reason (R): In an asynchronous circuit, events can occur after one event is completed and there is no need to wait for a clock pulse.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is not the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'A'. Can you explain this answer?
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