Correct answer: Task manager
A task manager is a system monitor program used to provide information about the processes and programs running on a computer, as well as the general status of the computer. Some implementations can also be used to terminate processes and programs, as well as change the processes priority.
If a program is non-responsive and you feel like stopping it already without waiting for the system to stop it automatically as it always does, all you have to do is click: ctrl + alt + delete ---> click task manager ---> in the processes tab, click the title of the program ---> click end task.