Question

Save the context

Update the PCB in the running state
Move the PCB to a queue
Select another process
Update the PCB of the new process
Update memory management
Restore the context of the old process
A) Process Termination Steps
B) Context Switching Steps
C) Process Creation Steps
D) Memory Management Steps

Answer 1

The steps listed in the question depict the process of context switching, a procedure in computer operating systems used by the CPU to switch between tasks, allowing multiple processes to share a single CPU.

Step-by-step explanation:

The steps provided in the question are related to the process of context switching in operating systems. Context switching is the procedure that a computer's CPU follows to switch from one task (or process) to another task. This process allows a single CPU to be shared by multiple processes by time-sharing the processing power.

Here are the steps of context switching:

1. Update the PCB (Process Control Block) in the running state to save the context of the current process.
2. Move the PCB to a queue if the process needs to wait for resources or if it is preempted by a higher-priority process.
3. Select another process to run based on a scheduling algorithm.
4. Update the PCB of the new process which will now be in the running state.
5. Update memory management to reflect the memory space of the new process.
6. Restore the context of the process that was previously running or the new process depending on the situation.

During this process, the system will save the state of the old process and load the saved state of the new process, effectively allowing multiple processes to share a single CPU effectively.