Node uses a thread pool for tasks like reading files async and crypto operations etc, you can read about it here https://nodejs.org/en/docs/guides/dont-block-th

Node uses a thread pool for tasks like reading files async and crypto operations etc, you can read about it here https://nodejs.org/en/docs/guides/dont-block-the-event-loop/ https://nodejs.org/en/docs/guides/dont-block-the-event-loop/