Addison Wesley eBooks Page 64

Software experts agree: the most difficult aspect of building software is not coding; it is the decisions the designer makes in the early stages. Those decisions live with the system for the rest of its lifetime. Good designs beget good software. Bad designs beget trouble. Designers are faced with a tough question: how do they know whether their designs are good or bad? Design patterns can provide valid judgment criteria for software designers. While a great deal of effort has been devoted to discovering new design patterns, very little effort has been spent on developing a process for "gluing" or "composing" design patterns to better develop software applications. This book specifically addresses this need, and explains the Patte...

"We have always recommended these books to our customers and even our own engineers for developing a better understanding of technologies and specifications. We find the latest PCI Express book from MindShare to have the same content and high quality as all the others." --Nader Saleh, CEO/President, Catalyst Enterprises, Inc. PCI Express is the third-generation Peripheral Component Inter-connect technology for a wide range of systems and peripheral devices. Incorporating recent advances in high-speed, point-to-point interconnects, PCI Express provides significantly higher performance, reliability, and enhanced capabilities--at a lower cost--than the previous PCI and PCI-X standards. Therefore, anyone working on next-generation PC systems, B...

Optical Network Control is the first expert guide and single-source reference for controlling and managing optical networks. This book fills the gap between optical network engineering and routing/signaling-helping both optical and IP professionals build networks that are more robust, flexible, manageable, and profitable. Coverage includes: *Designing networks to deliver a range of on-demand services from mission-critical, time-sensitive protected services to low-cost unprotected services *Network control and operations in WDM/DWDM and SONET/SDH environments *Control principles and features for evolving mesh-based optical networks and existing ring networks-with practical examples *Emerging, proposed, and future optical routing/signaling protocols an...

Modern software systems rely on the concepts of concurrency, modularity and distribution, both within the design of the operating system and those systems that it supports. Underlying this book is the premise that distributed systems are now commonplace and a reader is more likely to be using one than a centralized time-sharing system. This modern approach therefore avoids the focus on centralized systems, instead placing the operating system within its context and providing an overview of system components and their relationships.The book is divided into four parts:System Design, covering the basic operating system functions and describing the abstraction and implementation of a system as a community of (possibly distributed) concurrent processes. D...