Kas saaksite selgitada, kuidas toimub konteksti muutmise protsess süsteemis?

Context switching is the process by which the operating system saves the state of the currently running thread or process and loads the state of another to switch to its execution.

Main steps of context switching:

1. Save the context of the current process/thread: CPU registers, stack pointer, instruction counter, and other data.
2. Update the operating system scheduler about the task switch.
3. Load the context of the next process/thread from the saved state.
4. Resume execution of the new process from where it was suspended.

This allows the operating system to switch efficiently between tasks, creating the illusion of parallelism on a single processor.

Example: if you have two programs running, the operating system periodically saves the state of one and switches to the other, so both can operate "simultaneously".