Lecture Notes: Lecture #11 - Process Management

Key Topics Discussed

Four important topics for interviews related to process management:
1. Swapping
2. Context Switching
3. Process States
4. System Diagrams

Definition: Swapping refers to moving processes between main memory and a storage device (secondary memory) to manage the multiple processes in the RAM.
Example: Illustrations were provided on how this functions in a system.

Definition: Context switching involves saving the state of a process or thread and restoring the state of another process or thread. This is crucial for multitasking in operating systems.
Example: Practical examples were provided to demonstrate how the system saves the state (context) and then restores it.
Relation to Daily Life: An analogy was used related to listening to music and dealing with interruptions like phone calls or taking in deliveries.

Definition: The state of a process at any given time, which can include states such as running, ready, and waiting.
PCB (Process Control Blocks): Mentioned as a structure in the OS that contains information about processes.

Visual aids were mentioned which include diagrams showing process queues and the logical structure of processes.
Importance of understanding relationships between jobs, ready queues, and states.
Descriptions of tools like dispatchers and roles they perform were discussed.

Live demonstrations on a terminal showing process creation and state management.
Practical coding snippets and commands to show real-time examples of process handling in a system.

Mention of additional tools and resources available for further study and practical experience.
Encouragement to subscribe to channels for more tutorials and updates.

Degrees of Multiprogramming
Kernel's role in process management
Simplified language explanations to assist understanding complex technical concepts