The theory of computation is the branch of computer science that deals with whether and how efficiently problems can be solved on a computer. The field is divided into two major branches: computability theory and complexity theory, but both branches deal with formal models of computation.
We all had to learn some time. There was a time when you did not know. Now my time has come to learn what it is. Thanks for the link. I don't know why i didn't think of going there myself?