### Understanding Thread States and Scheduling in an Operating System#### Thread State TransitionIn the execution of a program, a new thread (A) is created and begins in the **New** state. As it requires an input from the user, the **scheduler** is called and changes it into the **runnable** state. Finally, it gets a time slice from the processor, but suddenly, a new urgent thread (B) appears which needs to be handled by the CPU. Thus, the thread (A) is **blocked** and moved back to the run queue.### Detailed ExplanationThis explanation covers the life cycle of a thread in a CPU scheduling scenario:1. **New State**: Initially, the thread is created and enters the New state. 2. **Scheduler**: The operating system's scheduler is the component responsible for allocating CPU time to various threads and processes.3. **Runnable State**: The scheduler moves the thread into the Runnable state when it's ready to execute but waiting for CPU time.4. **Execution Phase**: The CPU grants the thread (A) some execution time, also known as a time slice.5. **Blocked State**: If a higher priority or urgent thread (B) appears, thread (A) is preempted and enters the Blocked state, waiting to be rescheduled.Understanding these states and transitions is crucial for comprehending how multitasking and process prioritization work in modern operating systems.

After executing a programme on an ADP system, if it required to access at least one of the…

In execution of a program a new thread (A) is created and begins in the New state. As it requires an input from the user, the schedular is called and changes it into the runnab state. Finally it gets a time slice from the processor but suddenly a new urgent thread (B) appears which needs to be handled by the CPU. Thus, the thread (A) is blocked and moved back to the run queue.

In execution of a program a new thread (A) is created and begins in the New state. As it requires an input from the user, the schedular is called and changes it into the runnab state. Finally it gets a time slice from the processor but suddenly a new urgent thread (B) appears which needs to be handled by the CPU. Thus, the thread (A) is blocked and moved back to the run queue.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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