Podcast
Questions and Answers
What is the result of process creation in OS?
What is the result of process creation in OS?
What is the primary purpose of process state management in OS?
What is the primary purpose of process state management in OS?
Which process operation is responsible for managing the allocation of CPU time to different processes?
Which process operation is responsible for managing the allocation of CPU time to different processes?
In a round-robin scheduling algorithm, what is the primary mechanism used to allocate CPU time to processes?
In a round-robin scheduling algorithm, what is the primary mechanism used to allocate CPU time to processes?
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What is the purpose of a FIFO queue in process scheduling?
What is the purpose of a FIFO queue in process scheduling?
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What is the primary goal of process synchronization in OS?
What is the primary goal of process synchronization in OS?
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Which process operation is responsible for managing the communication between different processes?
Which process operation is responsible for managing the communication between different processes?
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What is the primary mechanism used to manage the context switching between different processes?
What is the primary mechanism used to manage the context switching between different processes?
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Which process operation is responsible for managing the allocation of system resources to different processes?
Which process operation is responsible for managing the allocation of system resources to different processes?
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What is the primary purpose of process termination in OS?
What is the primary purpose of process termination in OS?
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Study Notes
Process Management
- When all processes in main memory are in the Blocked state, the OS can suspend one process by putting it in the "Suspend state" and transferring it to the disk.
- The OS has two choices for selecting a process to bring into main memory: admitting a newly created process or bringing in a previously suspended process.
- Bringing a previously suspended process into main memory can provide it with service and reduce the total load on the system.
Process States
- A process can be in one of the following states: New, Ready, Running, Blocked, Suspended, or Terminated.
- A Suspended process is in secondary memory and is either Blocked or Ready.
- A Blocked process is waiting for an event, while a Ready process is available for execution as soon as it is loaded into main memory.
Swapping
- Swapping refers to moving part or all of a process from main memory to secondary memory (disk).
- The freed-up space in main memory can then be used to bring another process into main memory.
- Swapping is used to make room for a new process in main memory.
Process Operations
- Process operations refer to the OS key steps to manage the lifecycle of processes.
- The primary process operations in OS include:
- Process Creation
- Process Termination
- Process Execution
- Process Synchronization
- Process Scheduling
- Process State Management
- Context Switching
- Process Priority Management
- Inter-Process Communication (IPC)
- Process Accounting and Monitoring
Process Creation
- Process creation involves bringing a program from secondary memory to main memory and adding it to the ready queue.
- The OS builds the data structures used to manage the process and allocates the address space to be used by the process.
- Reasons for process creation include:
- New Batch Job
- Interactive Log On
- System Initiation
- Spawned Process
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Description
Learn about the process scheduling models and states in operating systems, including the suspended state and its relationship with the ready and blocked states. Understand how the OS manages processes and resources. Test your knowledge of process scheduling and management!
