parallelism is a part of concurrency that is represented by a set of processes or threads communicating with each other in a client-server fashion.
a process that spawns another process is called parent because relationship between them is loose aka undefined.
for example, a shell that starts a program (the main purpose of the shell) is a parent process to that program and the program is a child process.
child typically inherits a bunch of system related things from the parent, like evironment variables, current/working directory, console/terminal window.. etc etc. some of those are tuneable, but usually stay predictable defaults.
when parent process quits, children keep on running orphaned.
master-slave relationship appears only upon communication between parent and child.
in the process to process communication, aka in the exchange, a parent is one that writes first, so it represents a client. a child therefore reads and answers, so it represents a server.
a slave (server) must obey to any command (request written), otherwise master should forcibly terminate it.
the very minimal set of commands is a termination command. when master process quits, all slaves must terminate.
how do you like my initial design of \SM\Process?
is it pervert friendly?