What’s a process in Elixir?
To learn what a process is in Elixir, you must first know what a function is.
IO.puts/1 is a function that writes something to the screen. The function is called
puts, it is in the
IO module (input I and output O), and it takes one argument:
Read more at https://dev.to/adolfont/whats-a-process-in-elixir-406h