Download or read book The Accuracy of the Clock Synchronization Achieved by TEMPO in Berkeley UNIX 4 3BSD written by Riccardo Gusella and published by . This book was released on 1987 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT:: This paper discusses the upper and lower bounds on the accuracy of the time synchronization achieved by the algorithms implemented in TEMPO, a distributed clock synchronizer running on Berkleley UNIX 4.3BSD systems. We show that the accuracy is a function of the network transmission latency, and depends linearly upon the drift rate of the clocks and the interval between synchronizations. Comparisons with other clock synchronization algorithms reveals that This paper discusses the upper and lower bounds on the accuracy of the time synchronization achieved by the algorithms implemented in TEMPO, a distributed clock synchronizer running on Berkleley UNIX 4.3BSD systems. We show that the accuracy is a function of the network transmission latency, and depends linearly upon the drift rate of the clocks and the interval between synchronizations. Comparisons with other clock synchronization algorithms reveals that TEMPO may achieve better synchronizatio n accuracy at a lower cost.
Download or read book The Berkeley UNIX 4 3BSD Time Synchronization Protocol written by Riccardo Gusella and published by . This book was released on 1985 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Time Synchronization Protocol (TSP) has been designed for specific use by the program timed, a local area network clock synchronizer for the UNIX 4.3BSD operating system. Timed is built on the DARPA UDP protocol and is based on a master slave scheme.
Download or read book Tempo a network time controller for a distributed Berkeley Unix system written by Riccardo Gusella and published by . This book was released on 1983 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: Several experiments show that a total quasi ordering can be based on the unique network timing maintained by the service.
Download or read book Advanced Programming in the UNIX Environment written by W. Richard Stevens and published by Addison-Wesley Professional. This book was released on 2008-01-01 with total page 927 pages. Available in PDF, EPUB and Kindle. Book excerpt: The revision of the definitive guide to Unix system programming is now available in a more portable format.
Download or read book Unix in a Nutshell written by Arnold Robbins and published by O'Reilly Media, Inc.. This book was released on 2006 with total page 920 pages. Available in PDF, EPUB and Kindle. Book excerpt: A guide to the operating system's commands and options covers the shell, package management, text editing, source code management, and GDB debugger.
Download or read book Fundamentals of Mobile and Pervasive Computing written by Frank Adelstein and published by McGraw Hill Professional. This book was released on 2005-01-20 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authoritative, general reference that has been sorely missing in the field of mobile computing This book teaches all the main topics via the hottest applications in a rapidlygrowing field. "Big picture" explanations of ad hoc networks and service discovery Exercises, projects, and solutions to illustrate core concepts Extensive wireless security methodologies
Download or read book Operating Systems written by William Stallings and published by Prentice Hall. This book was released on 2009 with total page 905 pages. Available in PDF, EPUB and Kindle. Book excerpt: For a one-semester undergraduate course in operating systems for computer science, computer engineering, and electrical engineering majors. Winner of the 2009 Textbook Excellence Award from the Text and Academic Authors Association (TAA)! Operating Systems: Internals and Design Principles is a comprehensive and unified introduction to operating systems. By using several innovative tools, Stallings makes it possible to understand critical core concepts that can be fundamentally challenging. The new edition includes the implementation of web based animations to aid visual learners. At key points in the book, students are directed to view an animation and then are provided with assignments to alter the animation input and analyze the results. The concepts are then enhanced and supported by end-of-chapter case studies of UNIX, Linux and Windows Vista. These provide students with a solid understanding of the key mechanisms of modern operating systems and the types of design tradeoffs and decisions involved in OS design. Because they are embedded into the text as end of chapter material, students are able to apply them right at the point of discussion. This approach is equally useful as a basic reference and as an up-to-date survey of the state of the art.
Download or read book Embedded Software Development with ECos written by Anthony J. Massa and published by Prentice Hall Professional. This book was released on 2002 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: How to build low-cost, royalty-free embedded solutions with eCos, covers eCos architecture, installation, configuration, coding, debugging, bootstrapping, porting, and more, includes open source tools on CD-ROM for a complete embedded software development environment with eCos as the core.
Download or read book Modern Operating Systems written by Andrew S. Tanenbaum and published by . This book was released on 2001 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The widely anticipated revision of this worldwide best seller incorporates the latest developments in operating systems technologies. Hundreds of pages of new material on a wealth of subjects have been added. This authoritative, example-based reference offers practical, hands-on information in constructing and understanding modern operating systems. Continued in this second edition are the "big picture" concepts, presented in the clear and entertaining style that only Andrew S. Tanenbaum can provide. Tanenbaum's long experience as the designer or co-designer of three operating systems brings a knowledge of the subject and wealth of practical detail that few other books can match. FEATURES\ NEW--New chapters on computer security, multimedia operating systems, and multiple processor systems. NEW--Extensive coverage of Linux, UNIX(R), and Windows 2000(TM) as examples. NEW--Now includes coverage of graphical user interfaces, multiprocessor operating systems, trusted systems, viruses, network terminals, CD-ROM file systems, power management on laptops, RAID, soft timers, stable storage, fair-share scheduling, three-level scheduling, and new paging algorithms. NEW--Most chapters have a new section on current research on the chapter's topic. NEW--Focus on "single-processor" computer systems; a new book for a follow-up course on distributed systems is also available from Prentice Hall. NEW--Over 200 references to books and papers published since the first edition. NEW--The Web site for this book contains PowerPoint slides, simulators, figures in various formats, and other teaching aids.
Download or read book Dns Bind covers Bind 9 written by PAUL. ALBITZ and published by . This book was released on 2015 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Basics of Geomatics written by Mario A. Gomarasca and published by Springer Science & Business Media. This book was released on 2009-09-18 with total page 690 pages. Available in PDF, EPUB and Kindle. Book excerpt: Geomatics is a neologism, the use of which is becoming increasingly widespread, even if it is not still universally accepted. It includes several disciplines and te- niques for the study of the Earth’s surface and its environments, and computer science plays a decisive role. A more meaningful and appropriate expression is G- spatial Information or GeoInformation. Geo-spatial Information embeds topography in its more modern forms (measurements with electronic instrumentation, sophisticated techniques of data analysis and network compensation, global satellite positioning techniques, laser scanning, etc.), analytical and digital photogrammetry, satellite and airborne remote sensing, numerical cartography, geographical information systems, decision support systems, WebGIS, etc. These specialized elds are intimately interrelated in terms of both the basic science and the results pursued: rigid separation does not allow us to discover several common aspects and the fundamental importance assumed in a search for solutions in the complex survey context. The objective pursued by Mario A. Gomarasca, one that is only apparently modest, is to publish an integrated text on the surveying theme, containing simple and comprehensible concepts relevant to experts in Geo-spatial Information and/or speci cally in one of the disciplines that compose it. At the same time, the book is rigorous and synthetic, describing with precision the main instruments and methods connected to the multiple techniques available today.
Download or read book The Fourth Paradigm written by Anthony J. G. Hey and published by . This book was released on 2009 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Foreword. A transformed scientific method. Earth and environment. Health and wellbeing. Scientific infrastructure. Scholarly communication.
Download or read book Multimedia Applications Services and Techniques ECMAST 99 written by Helmut Leopold and published by Springer Science & Business Media. This book was released on 1999-05-19 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 4th European Conference on Multimedia Applications, Services and Techniques, ECMAST'99, held in Madrid, Spain in May 1999. The 37 revised full papers presented were carefully reviewed and selected from a total of 71 submissions. The book is divided in sections on services and applications, multimedia terminals, content creation, physical broadcast infrastructure, multimedia over the Internet, metadata, 3D imaging, multicast protocols, security and protection, and mobility.
Download or read book Understanding MySQL Internals written by Sasha Pachev and published by "O'Reilly Media, Inc.". This book was released on 2007-04-10 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although MySQL's source code is open in the sense of being publicly available, it's essentially closed to you if you don't understand it. In this book, Sasha Pachev -- a former member of the MySQL Development Team -- provides a comprehensive tour of MySQL 5 that shows you how to figure out the inner workings of this powerful database. You'll go right to heart of the database to learn how data structures and convenience functions operate, how to add new storage engines and configuration options, and much more. The core of Understanding MySQL Internals begins with an Architecture Overview that provides a brief introduction of how the different components of MySQL work together. You then learn the steps for setting up a working compilable copy of the code that you can change and test at your pleasure. Other sections of the book cover: Core server classes, structures, and API The communication protocol between the client and the server Configuration variables, the controls of the server; includes a tutorial on how to add your own Thread-based request handling -- understanding threads and how they are used in MySQL An overview of MySQL storage engines The storage engine interface for integrating third-party storage engines The table lock manager The parser and optimizer for improving MySQL's performance Integrating a transactional storage engine into MySQL The internals of replication Understanding MySQL Internals provides unprecedented opportunities for developers, DBAs, database application programmers, IT departments, software vendors, and computer science students to learn about the inner workings of this enterprise-proven database. With this book, you will soon reach a new level of comprehension regarding database development that will enable you to accomplish your goals. It's your guide to discovering and improving a great database.
Download or read book Linux in a Nutshell written by Ellen Siever and published by "O'Reilly Media, Inc.". This book was released on 2005 with total page 946 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the last few years, Linux has grown both as an operating system and a tool for personal and business use. Simultaneously becoming more user friendly and more powerful as a back-end system, Linux has achieved new plateaus: the newer filesystems have solidified, new commands and tools have appeared and become standard, and the desktop--including new desktop environments--have proved to be viable, stable, and readily accessible to even those who don't consider themselves computer gurus. Whether you're using Linux for personal software projects, for a small office or home office (often termed the SOHO environment), to provide services to a small group of colleagues, or to administer a site responsible for millions of email and web connections each day, you need quick access to information on a wide range of tools. This book covers all aspects of administering and making effective use of Linux systems. Among its topics are booting, package management, and revision control. But foremost in Linux in a Nutshell are the utilities and commands that make Linux one of the most powerful and flexible systems available. Now in its fifth edition, Linux in a Nutshell brings users up-to-date with the current state of Linux. Considered by many to be the most complete and authoritative command reference for Linux available, the book covers all substantial user, programming, administration, and networking commands for the most common Linux distributions. Comprehensive but concise, the fifth edition has been updated to cover new features of major Linux distributions. Configuration information for the rapidly growing commercial network services and community update services is one of the subjects covered for the first time. But that's just the beginning. The book covers editors, shells, and LILO and GRUB boot options. There's also coverage of Apache, Samba, Postfix, sendmail, CVS, Subversion, Emacs, vi, sed, gawk, and much more. Everything that system administrators, developers, and power users need to know about Linux is referenced here, and they will turn to this book again and again.
Download or read book TCP IP Network Administration written by Craig Hunt and published by "O'Reilly Media, Inc.". This book was released on 2002 with total page 746 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Covers Linux, Solaris, BSD, and System V TCP/IP implementations"--Back cover.
Download or read book Python for Unix and Linux System Administration written by Noah Gift and published by "O'Reilly Media, Inc.". This book was released on 2008-08-22 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Python is an ideal language for solving problems, especially in Linux and Unix networks. With this pragmatic book, administrators can review various tasks that often occur in the management of these systems, and learn how Python can provide a more efficient and less painful way to handle them. Each chapter in Python for Unix and Linux System Administration presents a particular administrative issue, such as concurrency or data backup, and presents Python solutions through hands-on examples. Once you finish this book, you'll be able to develop your own set of command-line utilities with Python to tackle a wide range of problems. Discover how this language can help you: Read text files and extract information Run tasks concurrently using the threading and forking options Get information from one process to another using network facilities Create clickable GUIs to handle large and complex utilities Monitor large clusters of machines by interacting with SNMP programmatically Master the IPython Interactive Python shell to replace or augment Bash, Korn, or Z-Shell Integrate Cloud Computing into your infrastructure, and learn to write a Google App Engine Application Solve unique data backup challenges with customized scripts Interact with MySQL, SQLite, Oracle, Postgres, Django ORM, and SQLAlchemy With this book, you'll learn how to package and deploy your Python applications and libraries, and write code that runs equally well on multiple Unix platforms. You'll also learn about several Python-related technologies that will make your life much easier.
