n this post, we will discuss how to kill an application that is running on a specific port number using the command prompt. This is a useful technique to know if you are trying to free up a port that is already in use, or if you want to stop an application that is causing problems on your system.
Process Control Block(PCB)
To identify the processes in the operating system each process is assigned a process identification number(PID). As Operating System supports multiprogramming, it needs to keep track of all processes. Process Control Block is used to track the process execution status.