It aims to give readers a fundamental overview of the technologies that make up the telecommunications infrastructure.

    From Mary, Queen of Scots, trapped by her own code, to the Navajo Code Talkers who helped the Allies win World War II, to the incredible (and incredibly simple) logisitical breakthrough that made Internet commerce secure, The Code Book tells the story of the most powerful intellectual weapon ever known: secrecy.Throughout the text are clear technical and mathematical explanations, and portraits of the remarkable personalities who wrote and broke the world’s most difficult codes. Accessible, compelling, and remarkably far-reaching, this book will forever alter your view of history and what drives it. It will also make you wonder how private that e-mail you just sent really is.

    A new four-part organizational structure increases the flexibility of the text, and all material is presented in a straightforward manner accompanied by an array of examples and visual diagrams.

    This Self-Paced Training Kit is designed to help maximize your performance on 70-680, the required exam for the Microsoft Certified Technology Specialist (MCTS): Windows 7, Configuration certification.This 2-in-1 kit includes the official Microsoft study guide, plus practice tests on CD to help you assess your skills. It comes packed with the tools and features exam candidates want most—including in-depth, self-paced training based on final exam content; rigorous, objective-by-objective review; exam tips from expert, exam-certified authors; and customizable testing options. It also provides real-world scenarios, case study examples, and troubleshooting labs to give you the skills and expertise you can use on the job.Work at your own pace through the lessons and lab exercises. This official study guide covers installing, upgrading, and migrating to Windows 7; configuring network connectivity, applications, and devices; implementing backup and recovery; configuring User Account Control (UAC), mobility options, and new features such as DirectAccess and BranchCache; and managing system updates.Then assess yourself using the 200 practice questions on CD, featuring multiple customizable testing options to meet your specific needs. Choose timed or untimed testing mode, generate random tests, or focus on discrete objectives. You get detailed explanations for right and wrong answers—including pointers back to the book for further study. You also get an exam discount voucher—making this kit an exceptional value and a great career investment.

    The author assumes a knowledge of basic UNIX commands, design, and permissions. The book takes you through the intricacies of the platform and teaches how to manage your system, offering friendly explanations, background information, troubleshooting suggestions, and copious examples throughout.

    Today's increasingly fast pace of software development--as programmers make small changes to software one day only to undo them the next--has only heightened the problem; consecutive work on code or single-programmer software is a rare sight these days. Without careful attention to version control, concurrent and collaborative work can create more headaches than it solves. This is where Subversion comes into play.Written by members of the Subversion open source development team, Version Control with Subversion introduces the powerful new versioning tool designed to be the successor to the Concurrent Version System or CVS. CVS users will find the "look and feel" Subversion comfortably familiar, but under the surface it's far more flexible, robust, and usable, and more importantly, it improves on CVS's more notable flaws.The book begins with a general introduction to Subversion, the basic concepts behind version control, and a guided tour of Subversion's capabilities and structure. With thorough attention to detail, the authors cover every aspect of installing and configuring Subversion for managing a programming project, documentation, or any other team-based endeavor. Later chapters cover the more complex topics of branching, repository administration, and other advanced features such as properties, externals, and access control. The book ends with reference material and appendices covering a number of useful topics such as a Subversion complete reference and troubleshooting guide.Version Control with Subversion aims to be useful to readers of widely different backgrounds, from those with no previous experience in version control to experienced sysadmins. If you've never used version control, you'll find everything you need to get started in this book. And if you're a seasoned CVS pro, this book will help you make a painless leap into Subversion.

    Each chapter addresses de-facto standards, popular technologies, and design principles applicable to a wide variety of systems. Complete with chapter summaries, end-of-chapter exercises and bibliographies, Distributed Operating Systems concludes with a set of case studies that provide real-world insights into four distributed operating systems.

    It could be you want to work on a cruise ships, you want to or have taken a cruise, maybe you are looking for tips on cruising or maybe you just like fun stories about cruise ships. If you are interested in any of those items I just listed, then this book is for you. Before we begin our journey, I guess I should tell you a little bit about myself and why I have written this book. For my cruise ship experience, I worked about 12 years on cruise ships around the world and 2 years working in shore side offices in Florida. I worked with 4 different cruise lines and worked as a scuba instructor/dive manager, shore excursion manager and then in the shore side offices as an IT geek, and finally a few years as an IT officer (yeah, I know, scuba instructor to computer geek, what can I say, it has been an interesting journey). Stories in this book include ones about: Getting a job on cruise ships Life on board ships On board romance Hurricanes Running aground Adrift at sea Kick backs Falling overboard Living on a tropical island Crazy things the crew and passengers do and much much more........................ I also have photos about my life at sea that can be seen at: www.cruiseshipstories.com Looking at these photos will bring my sea faring stories even more to life.

    

    Setting up and maintaining a Linux server requires understanding not only the hardware, but the ins and outs of the Linux operating system along with its supporting cast of utilities as well as layers of applications software. There's basic documentation online but there's a lot beyond the basics you have to know, and this only comes from people with hands-on, real-world experience. This kind of "know how" is what we sought to capture in Linux Server Hacks.Linux Server Hacks is a collection of 100 industrial-strength hacks, providing tips and tools that solve practical problems for Linux system administrators. Every hack can be read in just a few minutes but will save hours of searching for the right answer. Some of the hacks are subtle, many of them are non-obvious, and all of them demonstrate the power and flexibility of a Linux system. You'll find hacks devoted to tuning the Linux kernel to make your system run more efficiently, as well as using CVS or RCS to track the revision to system files. You'll learn alternative ways to do backups, how to use system monitoring tools to track system performance and a variety of secure networking solutions. Linux Server Hacks also helps you manage large-scale Web installations running Apache, MySQL, and other open source tools that are typically part of a Linux system.O'Reilly's new Hacks Series proudly reclaims the term "hacking" for the good guys. Hackers use their ingenuity to solve interesting problems. Rob Flickenger is an experienced system administrator, having managed the systems for O'Reilly Network for several years. (He's also into community wireless networking and he's written a book on that subject for O'Reilly.) Rob has also collected the best ideas and tools from a number of other highly skilled contributors.Written for users who already understand the basics, Linux Server Hacks is built upon the expertise of people who really know what they're doing.

    A journey of self-realization and renewed assessment of our lives, marked by silly anecdotes, mindless distractions, and everyday truths. This book is a humorous retelling of the author’s personal blunders and mind-boggling human behavior in general, strung together by a series of hilarious open letters. It is a modest pursuit to deliver a little relief, and diversion from the pandemic’s grim realities. It’s also an attempt to reaffirm the need for a good laugh to help deal with the doom and gloom that now surrounds our lives. Each letter picks up a relatable theme of our lockdown life – be it our obsession with baking banana bread, growing out our beards, or finding the fanciest holiday homes in Goa. What comes out, is a light and delightful offering that anyone living in this era shouldn’t miss. “A breezy read that goes well with your evening tea (like Marie Gold) or finds a permanent spot on your nightstand. A perfect picker-upper if you're feeling down, it reminded me of Bill Bryson's 'A Short History of Nearly Everything' and Hugh Prather's 'Notes to Myself'.”- Manish Bhatt, Founder/CCO August Communications“Hits a cord with everyone who has left the rat race of ‘acquiring new skills’. It is honest, straightforward, and downright hilarious. I loved the book. I found it clutter-breaking, relatable and non-preachy.” - Shilpi Agarwal, Blogger @bookgasmicSome important information:o The book is part memoir, part random lists and part mean musings.o It celebrates the ability to find humor in unexpected predicaments and life in general.o It’s a collection of letters addressed to the most unlikely of receivers, filled with pithy observations, irreverent and ruthless humor about the little idiosyncrasies of life in lockdown.o Each of these perfectly bite sized letters are wonderful accompaniments to the massive mood swings that is our reality in the times of corona.o Under no circumstance, this book is to be taken seriously, seriously.Savor this quick pick-me-up with a hot cup, a pinch of salt and a great deal of grins."

    It has become adevelopment platform in it own right. Applications written using Excel are partof many corporations' core suites of business-critical applications. In spite ofthis, Excel is too often thought of as a hobbyist's platform. While there arenumerous titles on Excel and VBA, until now there have been none thatprovide an overall explanation of how to develop professional-quality Excel-basedapplications. All three authors are professional Excel developers who runtheir own companies developing Excel-based apps for clients ranging fromindividuals to the largest multinational corporations. In this book they showhow anyone from power users to professional developers can increase thespeed and usefulness of their Excel-based apps.

     You surely have heard something about the Korean War. Or the Forgotten War as some call it. But do you really know all that happened? Have you heard the personal stories from the people who actually saw or did the fighting? If you haven't, you are in for a treat. While the war was among the shortest in history, it left an invisible mark - a divided Korea. And there's a lot that led to that. It wasn't just about the UN and South Korea fighting against North Korea, China, and the Soviet Union. You will: * Learn what UN soldiers did with Chinese corpses when it got cold. * Understand Japan's role in facilitating the war. * Know the real reason China got into the war despite being very scared of America. * Know why America got stung by underequipped and underskilled Chinese fighters * Learn why Truman was saved from impeachment for firing MacAurthor. * Know why America backed an undemocratic South Korean president There is a lot more you will learn in this book. Just click the download button to start reading.

    The authors' enthusiasm for their subject is compelling as they present abstract concepts in a humorous and easy-to-grasp fashion. Together, these books will open new doors of thought to anyone who wants to find out what computing is really about. The Little Schemer introduces computing as an extension of arithmetic and algebra; things that everyone studies in grade school and high school. It introduces programs as recursive functions and briefly discusses the limits of what computers can do. The authors use the programming language Scheme, and interesting foods to illustrate these abstract ideas. The Seasoned Schemer informs the reader about additional dimensions of computing: functions as values, change of state, and exceptional cases. The Little LISPer has been a popular introduction to LISP for many years. It had appeared in French and Japanese. The Little Schemer and The Seasoned Schemer are worthy successors and will prove equally popular as textbooks for Scheme courses as well as companion texts for any complete introductory course in Computer Science.