The book "Parallel Computing" deals with the topics of current interest in high performance computing, viz. pipeline and parallel processing architectures, and the whole book is based on treatment of these ideas. The present revised edition is updated with the addition of topics like processor performance and technology developments in chapter 1 and advanced pipeline processing on today's high performance processors in chapter 2. A new chapter on neurocomputing and two new sections on Branch prediction and scoreboard are the other major changes done to make the book more viable.