In conclusion, the theory of computation is a fundamental area of study in computer science that deals with the study of algorithms, automata, and formal languages. The book "Theory of Computation" by Arvind A. Puntambekar is a popular textbook on the subject that provides a comprehensive introduction to the theory of computation. The book covers topics such as automata, formal languages, and Turing machines, and is designed for undergraduate students of computer science.

To satisfy the search intent of "theory of computation aa puntambekar pdf 126," we must deduce the probable content. Based on the standard pagination of the 2009–2015 editions (the most commonly PDF-scanned versions), Chapter 3 or 4 usually occupies this page range.