Das Buch ist eine unkonventionelle, auf intuitives Verstandnis ausgerichtete Einfuhrung in die theoretischen Grundlagen der praktischen Aspekte der Informatik. Dabei geht es nicht ausschliesslich um die Entwicklung von Software. Beim Leser werden keine besonderen Vorkenntnisse vorausgesetzt. Es werden etwa Informationstheorie, Codierungstheorie, Zahlendarstellung und Numerik, Boolesche Algebra, Fuzzy-Logik sowie Quanten-Computer behandelt, wobei gewahrleistet bleibt, dass leicht verstandlich wird, wie auf diesem theoretischen Unterbau die praktische Realisierung eines Computers sowohl in Hardware als auch in Software erfolgen kann. Fur die funfte Auflage wurde das Buch komplett uberarbeitet und auf den neuesten Stand gebracht."

Innovations are adopted when users integrate them in meaningful ways into existing social practices. Histories of major technological innovations show that often the creative initiative of users and user communities becomes the determining factor in the evolution of particular innovations. The evolutionary routes of the telephone, the Internet, the World Wide Web, email, and the Linux operating system all took their developers by surprise. Articulation of these technologies as meaningful products and systems was made possible by innovative users and unintended resources. Iterative and interactive models have replaced the traditional linear model of innovation during the last decade. Yet, heroic innovators and entrepreneurs, unambiguous functionality of products, and a focus on the up-stream aspects of innovation still underlie much discussion on innovation, intellectual property rights, technology policy, and product development. Coherent conceptual, theoretical and practical conclusions from research on knowledge creation, theory of learning, history of technology, and the social basis of innovative change have rarely been made. This book argues that innovation is about creating meaning; that it is inherently social; and is grounded in existing social practices. To understand the social basis of innovation and technology development we have to move beyond the traditional product-centric view on innovations. Integrating concepts from several disciplinary perspectives and detailed analyses of the evolution of Internet-related innovations, including packet-switched computer networks, World Wide Web, and the Linux open source operating system, the book develops foundations for a new theoretical and practical understanding of innovation. For example, it shows that innovative development can occur in two qualitatively different ways, one based on evolving specialization and the other based on recombination of existing socially produced resources. The expanding communication and collaboration networks have increased the importance of the recombinatory mode making mobility of resources, sociotechnical translation mechanisms, and meaning creation in communities of practice increasingly important for innovation research and product development.

With 28 new chapters, the third edition of The Practice of System and Network Administration innovates yet again! Revised with thousands of updates and clarifications based on reader feedback, this new edition also incorporates DevOps strategies even for non-DevOps environments. Whether you use Linux, Unix, or Windows, this new edition describes the essential practices previously handed down only from mentor to protege. This wonderfully lucid, often funny cornucopia of information introduces beginners to advanced frameworks valuable for their entire career, yet is structured to help even experts through difficult projects. Other books tell you what commands to type. This book teaches you the cross-platform strategies that are timeless! DevOps techniques: Apply DevOps principles to enterprise IT infrastructure, even in environments without developers Game-changing strategies: New ways to deliver results faster with less stress Fleet management: A comprehensive guide to managing your fleet of desktops, laptops, servers and mobile devices Service management: How to design, launch, upgrade and migrate services Measurable improvement: Assess your operational effectiveness; a forty-page, pain-free assessment system you can start using today to raise the quality of all services Design guides: Best practices for networks, data centers, email, storage, monitoring, backups and more Management skills: Organization design, communication, negotiation, ethics, hiring and firing, and more Have you ever had any of these problems? Have you been surprised to discover your backup tapes are blank? Ever spent a year launching a new service only to be told the users hate it? Do you have more incoming support requests than you can handle? Do you spend more time fixing problems than building the next awesome thing? Have you suffered from a botched migration of thousands of users to a new service? Does your company rely on a computer that, if it died, can't be rebuilt? Is your network a fragile mess that breaks any time you try to improve it? Is there a periodic "hell month" that happens twice a year? Twelve times a year? Do you find out about problems when your users call you to complain? Does your corporate "Change Review Board" terrify you? Does each division of your company have their own broken way of doing things? Do you fear that automation will replace you, or break more than it fixes? Are you underpaid and overworked? No vague "management speak" or empty platitudes. This comprehensive guide provides real solutions that prevent these problems and more!

Real World Windows 8 Development is a developer's handbook - an essential guide to building complete, end-user ready Windows 8 applications on the XAML and C# programming stack from start to finish. Starting with Windows 8 basics and walking through practical aspects of building your Windows 8 application, you'll find step-by-step instructions and practical advice that will leave you with a modern, elegant app written to the highest of standards. Author Samidip Basu, an early adopter of Windows 8 app development techniques, breaks down the design, development, and polish of a real-world business application, adding handy tips and tricks around controls, user interface design, storage, navigation, contracts, and more. Give your Windows 8 application development efforts a kick-start with Real World Windows 8 Development. *Walks you through building your Windows 8 application in incremental, feature-complete steps. *Provides real-world tricks and sample code towards integrating your Windows 8 application with the rest of the operating system. *Starts with basics and take you all the way towards a complete Windows 8 application, built following the highest of best practice standards.What you'll learn *Discover the pertinent points of the technology stack in Windows 8 from a developer's perspective. *Familiarize yourself with best practices around usage of controls, user experience paradigms, navigation, storage, service integration, contracts, and more. *Incrementally make your Windows 8 application feature-rich and an integrated well-behaved citizen in the operating system. *Learn from crisp, standalone discussion of topics in each chapter Who this book is for Real World Windows 8 Development is by a developer, for developers. The book is for .NET developers wanting to utilize their existing skills in XAML and C# towards building a Windows 8 application. On the fence about how your C# and .NET skills apply in the new WinRT world? Have a dream application idea that you slowly want to build up? This book is for you.

Windows may rule the world of popular computing on PCs around the globe, but DOS still has a place in the hearts and minds of computer users who vaguely remember what a C prompt looks like. Even if DOS (with all its arcane commands and its drab, boring look) isn't your idea of the best way to get things done on a PC, you'll find plenty of fast and friendly help on hand with the third edition of DOS For Dummies.

Here's a plain-speaking reference guide to all the command-line stuff and nonsense that makes DOS work, whether you're a native DOS user or are an occasional dabbler who needs the operating system to run all those cool games under Windows. DOS For Dummies, 3rd Edition, avoids all the technical jargon to cut to the heart of things with clear, easy-to-understand explanations and step-by-step help for managing files, running DOS inside Windows, and installing and running DOS-based software programs. All the basic DOS commands, from APPEND to XCOPY, are demystified to make life in DOS much more bearable. And the book has plenty of helpful tips and tricks for bending DOS to your will, without having to dedicate your life (and all your free time) to mastering this little corner of the PC.

Configure your Azure Active Directory to enable cloud-based services and Remote Server Admin Tools to manage your Windows Server Key Features * Enhance your enterprise administration skills to manage Windows 11 * Get acquainted with configuring Azure Active Directory for enabling cloud-based services and Remote Server Admin Tools for managing Windows Server * Provide enterprise-level security with ease using the built-in data loss prevention of Windows 11 Book Description Windows 11 comes with a plethora of new security, customizability, and accessibility features that can help your organization run more smoothly. But without getting a proper introduction to this new version of Windows, it's easy to miss the most important improvements, along with configuration options that will make migrating to Windows 11 frictionless. Windows 11 for Enterprise Administrators is a guide to Windows 11 from an administrator's point of view. You'll start by focusing on areas such as installation and configuration techniques based on your enterprise requirements, various deployment scenarios and management strategies, as well as setting up and managing admin and other user accounts. You'll also explore the configuration of Remote Server Administration Tools to remotely manage Windows Server and Azure Active Directory. As you progress, you'll learn modern mobile device management for effective BYOD and how to enable enhanced data protection, system hardening, and enterprise-level security with the new Windows 11 in order to prevent data breaches and to impede attacks. By the end of this system administration book, you will know the key technologies and capabilities in Windows 11 and will confidently manage and deploy these features in your organization. What you will learn * Understand the remote access capabilities of Windows 11 * Use third-party tools to deploy Windows 11 * Customize the image and user interface * Implement assigned access rights * Configure remote administration * Manage Windows 11 security * Work with Azure AD and Intune management Who This Book Is For If you're a system administrator tasked with upgrading to for managing Windows 11, then this book is for you. Having deployed and managed previous versions of Windows in the past will help you follow along this book, but you can also use it as a guide if Windows 11 is your first foray into system administration.

Discover all the security risks and exploits that can threaten iOS-based mobile devices

iOS is Apple's mobile operating system for the iPhone and iPad. With the introduction of iOS5, many security issues have come to light. This book explains and discusses them all. The award-winning author team, experts in Mac and iOS security, examines the vulnerabilities and the internals of iOS to show how attacks can be mitigated. The book explains how the operating system works, its overall security architecture, and the security risks associated with it, as well as exploits, rootkits, and other payloads developed for it. Covers iOS security architecture, vulnerability hunting, exploit writing, and how iOS jailbreaks workExplores iOS enterprise and encryption, code signing and memory protection, sandboxing, iPhone fuzzing, exploitation, ROP payloads, and baseband attacksAlso examines kernel debugging and exploitation Companion website includes source code and tools to facilitate your efforts

"iOS Hacker's Handbook" arms you with the tools needed to identify, understand, and foil iOS attacks.

Dieses Buch bietet einen leichten Einstieg in UNIX und UNIX-Derivate wie Linux, Solaris, HP-UX oder AIX. Aus der Vielfalt der Kommandos und den fast unendlichen Variationsm glichkeiten ist das Wesentliche f r den Anwender herausgefiltert. Dabei sind die Entwicklungen unter UNIX und darauf aufbauender Software ber cksichtigt. An Beispielen aus der Praxis wird gezeigt, wie einfach man mit den Werkzeugen, die UNIX bietet, eine eigene Arbeitsumgebung schaffen kann, die funktionell ist und in der man sich wohlf hlt. Besonders beliebt ist die herausnehmbare Kurzreferenz mit h ufig benutzten Kommandos, sie erleichtert die praktische Arbeit sehr.

Build, operate, and orchestrate scalable microservices applications in the cloud This book combines a comprehensive guide to success with Microsoft Azure Service Fabric and a practical catalog of design patterns and best practices for microservices design, implementation, and operation. Haishi Bai brings together all the information you'll need to deliver scalable and reliable distributed microservices applications on Service Fabric. He thoroughly covers the crucial DevOps aspects of utilizing Service Fabric, reviews its interactions with key cloud-based services, and introduces essential service integration mechanisms such as messaging systems and reactive systems. Leading Microsoft Azure expert Haishi Bai shows how to: Set up your Service Fabric development environment Program and deploy Service Fabric applications to a local or a cloud-based cluster Compare and use stateful services, stateless services, and the actor model Design Service Fabric applications to maximize availability, reliability, and scalability Improve management efficiency via scripting Configure network security and other advanced cluster settings Collect diagnostic data, and use Azure Operational Management Suite to interpret it Integrate microservices components developed in parallel Use containers to mobilize applications for failover, replication, scaling, and load balancing Streamline containerization with Docker in Linux and Windows environments Orchestrate containers to schedule workloads and maintain services at desired states Implement proven design patterns for common cloud application workloads Balance throughput, latency, scalability, and cost

With Pro iOS Web Design and Development, you'll design websites and develop web applications for iPhone and iPad using web standards deployed with Apple's Safari browser. Utilizing the very latest web and mobile technologies and releases, this book shows every web professional how to use HTML5 to do the heavy lifting, CSS3 to create the look and feel, and JavaScript to add program logic to their mobile sites and Web applications. In addition, you'll learn how to address the specific features made available through Apple's iOS, especially with regard to designing Web-based touch-screen interfaces. Pro iOS Web Design and Development will help you deliver rich mobile user experiences without compromise by optimizing your sites for WebKit and Safari, the de facto standard for the iPhone, iPad, and iPod touch. What you'll learn * Design an optimal website for the iPhone, iPad, and iPod touch. * Use web standards to develop professional sites on Apple's key platforms and see why this is important for Web developers and designers. * Take advantage of Apple's multi-touch screen technology in your Web apps, maximizing user experience and accessibility.* Carry out usability testing for mobile websites and Web apps. * Define an agile project flow optimized for mobile development. * Use a cognitive approach to UI design using the laws of perception, color psychology theory, and the concepts behind positive and negative space. Who this book is for Web designers who are interested in mobile Web design and/or mobile Web development; desktop developers who are interested in mobile Web application development; or any Web professional who wants to learn how to design and develop for the iPhone, iPad, and iPod touch. Table of Contents * Think Touch Mobile * Design Touch Mobile * Develop Touch Mobile * User Interface Design for Mobile Touch Devices * iPhone UI Design: Think Simple * iPad UI Design: Think Inverted * Web Standards for WebKit - Maximizing MobileSafari * Creating WebApps - Mobile Application Development * Working in Apple's Native Mobile Environments * Optimizing WebApps * Testing iPhone and iPad WebApps * Maximizing the Market for WebApps * Looking Beyond the Mobile Web to Ubiquitous Computing

Fully updated for Xcode 4.2, Pro Core Data for iOS explains how to use the Core Data framework for iOS SDK 5 using Xcode 4.2. The book explains both how and why to use Core Data, from simple to advanced techniques. Covering common and advanced persistence patterns, this book prepares any iOS developer to store and retrieve data accurately and efficiently. This book starts by giving you a solid grounding in Core Data, providing a foundation for the rest of the book. With this knowledge, you'll have all you need to master Core Data and power your data-driven applications. You'll see how to work with SQLite and how to create an efficient data model to represent your data. Once you've established your data model, you'll learn how to work with data objects and refine result sets to get the most out of the stored data. The advanced portions of the book begin by showing you how to tune your apps' performance and memory usage, to give you a truly professional edge. You'll see how to version and migrate your data as well, to ensure your data stays organized and efficient. Finally, the book covers managing table views with NSFetchedResultsController.What you'll learn * Core Data techniques with Xcode * How to organize data appropriately * How to persist data efficiently * How to effectively use Apple tools * How to build Core Data applications * How to use Core Data in advanced settings * How to version and migrate data as your applications evolve * How to tune and optimize persistence Who this book is for All iPhone, iPad, and iPod touch developers whose applications manage any amount of data. Table of Contents * Getting Started * Understanding Core Data * Storing Data: SQLite and Other Options * Creating a Data Model * Working with Data Objects * Refining Result Sets * Tuning Performance and Memory Usage * Versioning and Migrating Data * Managing Table Views Using NSFetchedResultsController * Using Core Data in Advanced Applications

Leitthema des vorliegenden Tagungsbandes ist die Eignung von LINUX fur Echtzeit-Aufgaben. Dieser Frage wird zunachst in einem Grundsatz-Beitrag nachgegangen, gefolgt von anspruchsvollen Erfahrungsberichten. Erganzt werden sie durch Untersuchungen zur Zusammenarbeit mit digitalen Signalprozessoren. Vervollstandigt wird der LINUX-Schwerpunkt durch traditionelle Themen aus der Echtzeitprogrammierung. Echtzeit-Betriebssysteme und Anwendungsberichte runden den Band ab.

Turn your iPhone or iPad into the hub of a distributed sensor network with the help of an Arduino microcontroller. With this concise guide, you'll learn how to connect an external sensor to an iOS device and have them talk to each other through Arduino. You'll also build an iOS application that will parse the sensor values it receives and plot the resulting measurements, all in real-time.

iOS processes data from its own onboard sensors, and now you can extend its reach with this simple, low-cost project. If you're an Objective-C programmer who likes to experiment, this book explains the basics of Arduino and other hardware components you need--and lets you have fun in the process.Learn how to connect the Arduino platform to any iOS deviceBuild a simple application to control your Arduino directly from an iPadGather measurements from an ultrasonic range finder and display them on your iPhoneConnect an iPhone, iPad, or iPod Touch to an XBee radio networkExplore other methods for connecting external sensors to iOS, including Ethernet and the MIDI protocol