What Is Context Switching?
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Context switching is the process of a computer processor storing and restoring the state (context) of a process or thread so that it can be resumed and executed properly. This is done when a process is interrupted and has to wait for an event or resource, such as I/O or input from the user. Context switching enables multiple processes to share the same CPU and other resources by switching between them quickly. It’s also used by operating systems to manage multitasking.