part igetting started with python reading your -mail writing about your vacation finding the greatest gift in the world are all examples of communication that occurs between computer and you that the computer further communicates with other machines or people to address requests that you make simply extends the basic idea that communication is necessary to produce any result in most casesthe communication takes place in manner that is nearly invisible to you unless you really think about it for examplewhen you visit chat room onlineyou might think that you're communicating with another person howeveryou're communicating with your computeryour computer is communicating with the other person' computer through the chat room (whatever it consists of)and the other person' computer is communicating with that person figure - gives you an idea of what is actually taking place figure - commu nication with your computer may be invisible unless you really think about it notice the cloud in the center of figure - the cloud could contain anythingbut you know that it at least contains other computers running other applications these computers make it possible for your friend and you to chat nowthink about how easy the whole process seems when you're using the chat application even though all these things are going on in the backgroundit seems as if you're simply chatting with your friend and the process itself is invisible