In which cases is the process concept used in system architecture?

The concept of processes in system architecture is used to organize task execution in isolated units — processes. This allows:

• Sharing resources and ensuring security.
• Running multiple tasks in parallel.
• Improving system stability: a failure of one process does not lead to the entire system crashing.

In Python, for example, processes are used to bypass the limitations of multithreading (GIL) when true parallelism is needed.

An example of creating a process in Python:

from multiprocessing import Process

def worker():
    print("Working in a separate process")

if __name__ == '__main__':
    p = Process(target=worker)
    p.start()
    p.join()

Here, the worker function runs in a separate process, allowing tasks to be executed in parallel.