Process Management
The module delves into process management as a key aspect of operating systems, highlighting the concepts of processes, their lifecycle, CPU scheduling, and algorithms that optimize system performance. It also introduces threads as lightweight units of execution, analyzing their advantages and the various levels at which they can be implemented.
21 sections
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Sections
Navigate through the learning materials and practice exercises.
What we have learnt
- Understanding the difference between a process and a program is essential for grasping how operating systems manage resources.
- The lifecycle of a process includes states such as New, Ready, Running, Waiting, and Terminated, each playing a crucial role in execution management.
- Process Control Blocks (PCBs) are vital for tracking all necessary state information of a process.
- Scheduling methods like FCFS, SJF, Priority Scheduling, and Round-Robin are key for managing CPU allocation effectively.
- Threads allow for efficient resource sharing and responsive applications, differing in implementation between user and kernel threads.
Key Concepts
- -- Process
- An active instance of a program's execution, with its own allocated resources and a dynamic state.
- -- Process Control Block (PCB)
- A data structure that contains important information about a process, enabling the operating system to manage it effectively.
- -- Scheduling Algorithms
- Methods used by operating systems to allocate CPU time among processes effectively, varying in strategy and efficiency.
- -- Thread
- A lightweight sub-process within a program that can execute concurrently, allowing for efficient resource management and responsiveness.
- -- Context Switching
- The process of saving the state of a currently executing process and loading the state of another process, allowing multitasking.
Additional Learning Materials
Supplementary resources to enhance your learning experience.