How to distinguish multithreading from asynchronous task execution and what are the main differences between them?

Multithreading is the simultaneous execution of multiple threads, each performing its task in parallel using multiple processor cores. Asynchronous execution is a way of organizing code where tasks are launched and executed without blocking the main thread, but not necessarily in parallel.

Main differences:

• Multithreading implies actual parallel execution of code on different processor cores.
• Asynchronous allows launching tasks that can run in the background or wait for I/O operations without blocking the main thread, but the task itself may be executed sequentially.

For example, in Python, threading can be used to create multiple threads, and asyncio for writing asynchronous code that efficiently manages waiting for operations without creating additional threads.