Abstract: "In this document we describe the architecture and the implementation of the Spring virtual memory system. The architecture separates the tasks of maintaining memory mappings and protections from the task of paging memory in and out of backing store. A per-node virtual memory manager is responsible for maintaining the mappings on the local machine while external pagers are resposible for managing backing store. A novel aspect of the architecture is the separation of the memory abstraction from the interface that provides the paging operations. The design supports flexible memory sharing, sparse address spaces, and copy- on-write mechanisms. Support for distributed shared memory and extensible stackable file systems are natural consequences of the design. The architecture is implemented and has been in use for over two years as part of an experimental operating system."

Introduce the reader to the most important details of the memory system. This book targets both computer scientists and computer engineers in industry and in academia. Roughly speaking, computer scientists are the users of the memory system and computer engineers are the designers of the memory system. Both can benefit tremendously from a basic understanding of how the memory system really works.

The 2004 IFIP International Conference on Intelligence in Communication S- tems(INTELLCOMM2004),heldinBangkok,Thailand,23–26November2004, was the successor and an expansion of SMARTNET, a series of annual conf- ences on intelligence in networks held during 1995–2003 under the auspices of IFIP TC6’s Working Group 6. 7. The Internet and Web provide more connection facilities, hence the man-man, man-machine and machine-machine interactions will increase and communication will have an important role in modern s- tems. Inordertoobtaine?ectiveande?cientcommunication,artistic,socialand technical issues have to be tackled in a holistic and integrated manner. However, communicationtechniques,conceptsandsolutionswhichhavebeendevelopedso far treat these issues separately, so that there arises a need for communication researchers and practitioners in di?erent ?elds (engineering, science and arts) to meet, share their experience and explore all possibilities of developing in- grated and advanced solutions which incorporate ideas from such disciplines as communication arts, art design, linguistics, Web technologies, computer system architecture and protocols, computer science and arti?cial intelligence. INTELLCOMM 2004 was jointly sponsored by IFIP WG 6. 7: Smart N- works and WG 6. 4: Internet Applications Engineering and aimed to provide an international forum which brings academia, researchers, practitioners and s- vice providers together. The discussion areas covered the latest research topics andadvancedtechnologicalsolutionsintheareaofintelligenceincommunication systems, ranging from architectures for adaptable networks/services and Sem- ticWeb/Webservicestechnologiestointelligentserviceapplicationinterfaceand intelligent human interaction. INTELLCOMM 2004 received 112 paper submissions from 28 countries. From these, 24 were accepted, and are included in this proceedings. There were also 3 papers accepted for poster presentation, published separately.

"UNIX Operating System: The Development Tutorial via UNIX Kernel Services" introduces the hierarchical structure, principles, applications, kernel, shells, development, and management of the UNIX operation systems multi-dimensionally and systematically. It clarifies the natural bond between physical UNIX implementation and general operating system and software engineering theories, and presents self-explanatory illustrations for readers to visualize and understand the obscure relationships and intangible processes in UNIX operating system. This book is intended for engineers and researchers in the field of applicable computing and engineering modeling. Yukun Liu is an Associate Professor at the Department of Computer Science and Technology, Hebei University of Science and Technology, China; Professor Yong Yue is Director of the Institute for Research of Applicable Computing and Head of the Department of Computer Science and Technology, University of Bedfordshire, UK; Professor Liwei Guo is Dean of the College of Information Science and Engineering, Hebei University of Science and Technology, China.

Is your memory hierarchy stopping your microprocessor from performing at the high level it should be? Memory Systems: Cache, DRAM, Disk shows you how to resolve this problem. The book tells you everything you need to know about the logical design and operation, physical design and operation, performance characteristics and resulting design trade-offs, and the energy consumption of modern memory hierarchies. You learn how to to tackle the challenging optimization problems that result from the side-effects that can appear at any point in the entire hierarchy.As a result you will be able to design and emulate the entire memory hierarchy. - Understand all levels of the system hierarchy -Xcache, DRAM, and disk. - Evaluate the system-level effects of all design choices. - Model performance and energy consumption for each component in the memory hierarchy.

This book constitutes the refereed proceedings of the 6th International Workshop on Distributed Computing, IWDC 2004, held in Kolkata, India in December 2004. The 27 revised full papers and 27 revised short papers presented together with 3 invited contributions and abstracts of 11 reviewed workshop papers were carefully reviewed and selected from 157 submissions. The papers are organized in topical sections on distributed algorithms, high-performance computing, distributed systems, wireless networks, information security, network protocols, reliability and testing, network topology and routing, mobile computing, ad-hoc networks, and sensor networks.