It simply means that the execution of two or more threads at the same time.
The program can be split into multiple parts and these parts execute simultaneously, which in turn increases your program speed, performance and proper use of memory space.
ach of these threads is responsible for performing different tasks at the same time.
Multithreading is useful for speeding up program execution and performance improvement, but it is not applied everywhere.
It can be used only when there is no dependency between threads.
Every program or process has one thread that will be running always, called the main thread.
As the diagram shows child threads are created by the main thread.
Example to create multiple threads
To create a thread, import threading module
Create a Thread class object in order to create a new thread that takes target and args as arguments.
Thread can be started using thread.start() method.
join() method can be used to wait until each thread is completely executed.

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