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Which of the following systems are entirely controlled by the timer?
- a)voltage triggered
- b)time triggered
- c)aperiodic task scheduler
- d)periodic task scheduler
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Which of the following systems are entirely controlled by the timer?a)...
Explanation: The systems which are entirely controlled by a timer are known as entirely time-triggered systems. A temporal control structure is associated with the entirely time-triggered system which is encoded in a TDL, task descriptor list.
Most Upvoted Answer
Which of the following systems are entirely controlled by the timer?a)...
Understanding Time-Triggered Systems
Time-triggered systems are a class of real-time systems where operations are scheduled based on a predefined timeline, primarily controlled by a timer.
Key Characteristics of Time-Triggered Systems:
- Deterministic Execution:
- Tasks are executed at specific time intervals, ensuring predictability in behavior.
- Timer Control:
- The timer initiates task executions, making the system entirely dependent on time.
- Periodic Tasks:
- Tasks are performed at regular intervals, such as every 100 milliseconds, which is typical in time-triggered systems.
Comparison with Other Systems:
- Voltage Triggered:
- These systems react to changes in voltage rather than relying on time intervals.
- Aperiodic Task Scheduler:
- Aperiodic tasks are triggered by external events rather than a timer, leading to unpredictable execution times.
- Periodic Task Scheduler:
- While it schedules tasks at regular intervals, it may not be entirely timer-controlled because the execution can still be influenced by other factors (e.g., system load).
Conclusion
Thus, option 'B', the time-triggered system, is entirely controlled by the timer, ensuring that tasks are executed based solely on time rather than other external factors. This makes it the correct answer for the question regarding systems controlled by timers.
Time-triggered systems are a class of real-time systems where operations are scheduled based on a predefined timeline, primarily controlled by a timer.
Key Characteristics of Time-Triggered Systems:
- Deterministic Execution:
- Tasks are executed at specific time intervals, ensuring predictability in behavior.
- Timer Control:
- The timer initiates task executions, making the system entirely dependent on time.
- Periodic Tasks:
- Tasks are performed at regular intervals, such as every 100 milliseconds, which is typical in time-triggered systems.
Comparison with Other Systems:
- Voltage Triggered:
- These systems react to changes in voltage rather than relying on time intervals.
- Aperiodic Task Scheduler:
- Aperiodic tasks are triggered by external events rather than a timer, leading to unpredictable execution times.
- Periodic Task Scheduler:
- While it schedules tasks at regular intervals, it may not be entirely timer-controlled because the execution can still be influenced by other factors (e.g., system load).
Conclusion
Thus, option 'B', the time-triggered system, is entirely controlled by the timer, ensuring that tasks are executed based solely on time rather than other external factors. This makes it the correct answer for the question regarding systems controlled by timers.
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Which of the following systems are entirely controlled by the timer?a)voltage triggeredb)time triggeredc)aperiodic task schedulerd)periodic task schedulerCorrect answer is option 'B'. Can you explain this answer?
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