Computation. To make a specific task to run faster it can be divided into subtasks. Each of which can be executed concurrently. Computation speedup can be achieved by using the computer. Which has multiple processing elements.

Process termination when it finishes its execution by executing. The final statement and request to the operating system delete it by using exit () system call. At this point, the process may return output data to its parent process via the wait system call. All the resources of the process including open files, physical and virtual memory. And I/O operations are deallocated by operating system return back. Termination of the process can be occurring in some additional circumstances. Using a specific system call such as abort a process can cause the termination of another process. Generally, this kind of system call can be invoked by the parent process only that is to be terminated.