What are processes?
In this section, we will review what processes are in the context of Java application programming. If you are already familiar with processes, you might consider skipping this section.
Processes are executional units in the operating system. When you start a program, you start a process. When the machine boots the code, the first thing it does is, execute the boot process. This process then starts other processes that become the child of the boot process. These child processes may start other processes. This way, when the machine runs there are trees of processes running. When the machine does something, it is done in some code executing inside some process. The operating system also runs as several processes that execute simultaneously. Applications are executed as one or more processes. Most of the applications run as a single process but as an example, the Chrome browser starts several processes to do all the rendering and network communication operations that finally...
