Thoroughly updated with new content, as well as new problems and worked examples, this text offers readers both the theory and practical guidance needed to evaluate the performance and reliability of computer, communications, and manufacturing. Starting with basic probability theory, the text sets the foundation for a more complicated topic of queuing network and Markov chains, using applications and examples to illustrate important points. Designed to engage readers and build practical performance analysis skills, the text has a wealth of problems that mirror actual industry challenges. New features of the Second Edition include: * Chapter examining simulation methods and applications * Analyze the performance of applications for wireless, Internet systems, J2EE, and Kanban * Latest material non-Markovian and fluid stochastic Petri nets, as well as solution techniques for Markov regenerative process * Updated discussion of the new performance and popular tool of analysis, including ns-2 and OPNET * New and current real-world examples, including DiffServ routers in the Internet and mobile cellular network With the rapidly growing complexity of computer and communication systems, the need for this text, who is an expert blend of theory and practice, is extraordinary.