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Helpdesks
19,00 € *
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Egal, ob für einen multinationalen Großkonzern oder eine kleine 2-Mann Firma, fast immer benötigen Sie professionelle Hilfe bei der Betreuung Ihrer Computeraktivitäten und Computerbenutzer, wenn dies nicht zu Ihrem eigentlichen Kerngeschäft gehört. Dieser Leitfaden dient als Entscheidungshilfe. Es werden alle wesentlichen Faktoren vorgestellt um Ihnen die Wahl zwischen selbst betreuten Computern und der Vergabe dieser Aufgabe an einen EDV-Anbieter zu erleichtern. Ebenso werden mögliche Probleme aufgezeigt und Verfahren zur Etablierung und Steuerung eines Helpdesks erläutert.

Anbieter: buecher.de
Stand: 14.08.2018
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One-Time-Pad-Verschlüsselung
24,95 € *
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Die One-Time-Pad-Verschlüsselung einschließlich einer Prüfsumme erlaubt es praktisch alle Tex te sicher zu verschlüsseln, auch mit dem Smartphone. Den verschlüsselten Text können wir kopieren (Copy and Paste) und per E-Mail austauschen oder zum Beispiel in sozialen Medien wie Facebook posten, Die Texte sind so sicher vor der NSA auch vor gezielten Verände rungen, also auch Sabotage. Diese One-Time-Pad-Verschlüsselung können wir mit Javascript selbst programmieren. Javascript erlaubt es mit den in ein Formular im Web eingetragenen Da ten beliebige Berechnungen durchzuführen, denn Javascript ist eine richtige Programmiersprache, die es erlaubt fast be liebige Rechenoperationen auszuführen, also auch eine einfa che aber sichere One-Time-Pad-Verschüsselung mit einer RC4-Variante. Ein solches Skript kann die verschlüsselten binären Daten auch im Textformat, zum Beispiel hexadezimal codiert, darstellen und beim Entschlüsseln dieses hexadezimale Textformat wieder in binäres Format zurückführen und entschlüsseln also den ursprünglichen Text wieder herstellen. Die Erstellung eines solchen Skripts wird ausführlich in allen Einzelheiten erklärt. Es gibt heute eine Vielzahl sogar oft kostenloser Möglichkeiten beliebige Daten und somit auch eingescannte Papierdokumen te im Internet zu speichern. Diese Dokumente werden sicher mit dem One-Time-Pad verschlüsselt, mit der eigenen Software, in der Programmiersprache C oder der Skriptsprache Python auf jedem PC oder Notebook. Doch dieses Ziel kann erreicht werden, durch relativ einfache im Buch dar gestellte Verfahren der Verschlüsselung und Prüfsummenbil dung. Keine Lösung ist hingegen aber Software, die von Firmen wie der Telekom selbst angeboten werden, denn diese enthalten nach aller Erfahrung Hintertüren für die Geheimdienste. Dies ist nicht nur theoretisch mit dem bekannten One-Time-Pad möglich, sondern auch praktisch umgesetzt werden, mit der eigenen Software.

Anbieter: buecher.de
Stand: 14.08.2018
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Foundation Mathematics for Computer Science
36,99 € *
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John Vince describes a range of mathematical topics to provide a foundation for an undergraduate course in computer science, starting with a review of number systems and their relevance to digital computers, and finishing with differential and integral calculus. Readers will find that the author´s visual approach will greatly improve their understanding as to why certain mathematical structures exist, together with how they are used in real-world applications. Each chapter includes full-colour illustrations to clarify the mathematical descriptions, and in some cases, equations are also coloured to reveal vital algebraic patterns. The numerous worked examples will consolidate comprehension of abstract mathematical concepts. Foundation Mathematics for Computer Science covers number systems, algebra, logic, trigonometry, coordinate systems, determinants, vectors, matrices, geometric matrix transforms, differential and integral calculus, and reveals the names of the mathematicians behind such inventions. During this journey, John Vince touches upon more esoteric topics such as quaternions, octonions, Grassmann algebra, Barycentric coordinates, transfinite sets and prime numbers. Whether you intend to pursue a career in programming, scientific visualisation, systems design, or real-time computing, you should find the author´s literary style refreshingly lucid and engaging, and prepare you for more advanced texts.

Anbieter: buecher.de
Stand: 14.08.2018
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Clean C++
26,99 € *
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Write maintainable, extensible, and durable software with modern C++. This book is a must for every developer, software architect, or team leader who is interested in good C++ code, and thus also wants to save development costs. If you want to teach yourself about writing clean C++, Clean C++ is exactly what you need. It is written to help C++ developers of all skill levels and shows by example how to write understandable, flexible, maintainable, and efficient C++ code. Even if you are a seasoned C++ developer, there are nuggets and data points in this book that you will find useful in your work. If you don´t take care with your code, you can produce a large, messy, and unmaintainable beast in any programming language. However, C++ projects in particular are prone to be messy and tend to slip into bad habits. Lots of C++ code that is written today looks as if it was written in the 1980s. It seems that C++ developers have been forg otten by those who preach Software Craftsmanship and Clean Code principles. The Web is full of bad, but apparently very fast and highly optimized C++ code examples, with cruel syntax that completely ignores elementary principles of good design and well-written code. This book will explain how to avoid this scenario and how to get the most out of your C++ code. You´ll find your coding becomes more efficient and, importantly, more fun. What You´ll Learn Gain sound principles and rules for clean coding in C++ Carry out test driven development (TDD) Discover C++ design patterns and idioms Apply these design patterns Who This Book Is For Any C++ developer and software engineer with an interest in producing better code.

Anbieter: buecher.de
Stand: 14.08.2018
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Tools and Techniques for Cloud based IOT Systems
38,99 € *
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This book covers some of the tools and techniques used for building IOT applications using Cloud computing Tools. This book gives an insight into the overview of some open source tools that are used for building IoT systems. It gives an overview of Smart City applications and IOT protocols. The book is used for comprehensive study of IOT under Cloud environment. This is a useful guide for Undergraduate course in CS/IT.

Anbieter: buecher.de
Stand: 14.08.2018
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Controle de Apresentações de Slides Utilizando ...
28,99 € *
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Ainda hoje, as técnicas existentes para a manipulação de slides se apresentam restritas. Em geral, ocorre a interrupção frequente da apresentação para que o apresentador se desloque ao computador para o controle dos slides. Este livro apresenta a construção de um sistema de baixo custo que possibilita o controle de apresentações de slides em projetores multimídia por meio da visão computacional e processamento digital de imagens. O aplicativo constitui basicamente de duas etapas: uma de calibração em que a região da área de projeção que o usuário pode interagir é detectada e outra que diz respeito à apresentação. O controle ocorre a partir de um sistema de rastreamento que gera ações na apresentação a partir da posição da mão do apresentador. Uma webcam é utilizada como um sensor para a captura, em tempo real, de imagens da apresentação. Estas imagens passam por algoritmos e técnicas de visão computacional e processamento digital de imagens para que seja possível detectar alterações na cena. Quando alterações são detectadas, comandos são executados sobre os slides.

Anbieter: buecher.de
Stand: 14.08.2018
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Practical Binary Analysis
30,99 € *
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Stop manually analyzing binary! Practical Binary Analysis is the first book of its kind to present advanced binary analysis topics, such as binary instrumentation, dynamic taint analysis, and symbolic execution, in an accessible way. After an introduction on the basics of binary formats, disassembly, and code injection, you´ll dive into more complex subjects, and by the end of the book, you´ll be able to build your own binary analysis tools on Linux. Practical Binary Analysis will help interested people become well-rounded binary analysts, who are capable of developing and exploring new ideas on their own.

Anbieter: buecher.de
Stand: 14.08.2018
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Introduction to Programming with Fortran
79,99 € *
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This fourth Edition presents new examples on submodules, derived type i/o, object oriented programming, abstract interfaces and procedure pointers, C interop, sorting and searching, statistics and converting to more modern versions of Fortran. Key Features Highlights the core language features of modern Fortran including data typing, array processing, control structures, functions, subroutines, modules and submodules, user defined types, pointers, operator overloading, generic programming, parallel programming, abstract interfaces, procedure pointers Pinpoints common problems that occur when programming Illustrates the use of several compilers Introduction to Programming with Fortran has been written for the complete beginner with little or no programming background as well as existing Fortran programmers and those with programming experience in other languages

Anbieter: buecher.de
Stand: 14.08.2018
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Visio 2013/2016
25,00 € *
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Dieses Buch bietet Einsteigern Anleitungen zu den Grundfunktionen von Microsoft Visio 2013 und 2016 Standard und Professional anhand konkreter und leicht nachvollziehbarer Beispiele. Aber auch fortgeschrittene Anwender finden viele Informationen, Tipps und Techniken der Version 2013 und 2016 in klar gegliederten Kapiteln. Der Anhang enthält eine praktische Schablonen-Übersicht. Die Beispieldateien können von der Internetseite des Autors heruntergeladen werden. Dieses Buch bietet Einsteigern Anleitungen zu den Grundfunktionen von Microsoft Visio 2013 und 2016 Standard und Professional anhand konkreter und leicht nachvollziehbarer Beispiele. Aber auch fortgeschrittene Anwender finden viele Informationen, Tipps und Techniken der Version 2013 und 2016 in klar gegliederten Kapiteln. Der Anhang enthält eine praktische Schablonen-Übersicht. Die Beispieldateien können von der Internetseite des Autors heruntergeladen werden.

Anbieter: buecher.de
Stand: 14.08.2018
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Simulating Urban Traffic Scenarios
111,99 € *
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This contributed volume contains the conference proceedings of the Simulation of Urban Mobility (SUMO) conference 2015, Berlin. The included papers cover a wide range of topics in traffic planning and simulation, including intermodal simulation, intermodal transport, vehicular communication, modeling urban mobility, open data as well as autonomous driving. The target audience primarily comprises researchers and experts in the field of mobility research, but the book may also be beneficial for graduate students.

Anbieter: buecher.de
Stand: 14.08.2018
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