Multithreading means running multiple tasks at the same time using separate threads.

You can:

• Run a background task (like loading a file)
• Handle user input while a game loop runs
• Process things faster

In C++, this is done with the <thread> library.

• Improves performance
• Keeps apps responsive
• Lets you split heavy work into smaller pieces

#include <iostream>
#include <thread>
using namespace std;

void task() {
    cout << "Task is running in another thread." << endl;
}

int main() {
    thread t(task);   // launch thread
    t.join();         // wait for it to finish
    cout << "Main thread done." << endl;
}