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henever the CPU becomes idle, the operating system must select one of the processes in the ___ to be executed.
- a)execution queue
- b)process queue
- c)waiting queue
- d)ready queue
Correct answer is option 'D'. Can you explain this answer?
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henever the CPU becomes idle, the operating system must select one of ...
As we shall see when we consider the various scheduling algorithms, a ready queue can be implemented as a FIFO queue, a priority queue, a tree, or simply an unordered linked list. Conceptually, however, all the processes in the ready queue are lined up waiting for a chance to run on the CPU. The records in the queues are generally process control blocks (PCBs) of the processes
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henever the CPU becomes idle, the operating system must select one of ...
Ready Queue Selection for Process Execution
The ready queue is a data structure used by the operating system to hold all the processes that are ready to be executed by the CPU. When the CPU becomes idle, the operating system must choose one of the processes in the ready queue to run next.
Importance of Ready Queue
- The ready queue ensures that there is always a process available for execution when the CPU is idle.
- It allows the operating system to efficiently manage the scheduling of multiple processes.
Process Selection from Ready Queue
- The operating system uses scheduling algorithms to select the next process from the ready queue. These algorithms determine the order in which processes are executed based on criteria such as priority, time quantum, and fairness.
- Common scheduling algorithms include First Come First Serve (FCFS), Shortest Job Next (SJN), Round Robin, and Priority Scheduling.
Execution of Selected Process
- Once a process is selected from the ready queue, the operating system allocates the CPU to that process for execution.
- The process will continue to run until it either completes its execution or is interrupted by an event such as I/O operation or a higher priority process becoming available.
In conclusion, the ready queue plays a crucial role in the efficient execution of processes by the operating system. It ensures that there is always a process available for execution when the CPU is idle and allows the operating system to manage the scheduling of processes effectively.
The ready queue is a data structure used by the operating system to hold all the processes that are ready to be executed by the CPU. When the CPU becomes idle, the operating system must choose one of the processes in the ready queue to run next.
Importance of Ready Queue
- The ready queue ensures that there is always a process available for execution when the CPU is idle.
- It allows the operating system to efficiently manage the scheduling of multiple processes.
Process Selection from Ready Queue
- The operating system uses scheduling algorithms to select the next process from the ready queue. These algorithms determine the order in which processes are executed based on criteria such as priority, time quantum, and fairness.
- Common scheduling algorithms include First Come First Serve (FCFS), Shortest Job Next (SJN), Round Robin, and Priority Scheduling.
Execution of Selected Process
- Once a process is selected from the ready queue, the operating system allocates the CPU to that process for execution.
- The process will continue to run until it either completes its execution or is interrupted by an event such as I/O operation or a higher priority process becoming available.
In conclusion, the ready queue plays a crucial role in the efficient execution of processes by the operating system. It ensures that there is always a process available for execution when the CPU is idle and allows the operating system to manage the scheduling of processes effectively.
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henever the CPU becomes idle, the operating system must select one of the processes in the ___ to be executed.a)execution queueb)process queuec)waiting queued)ready queueCorrect answer is option 'D'. Can you explain this answer?
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