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"The first chapter gives an overview of cloud computing at a level accessible to a lay person. To motivate the reasons for a paradigm shift in the way we compute and store information, we introduce the concept of network-centric computing and network-centric content. A brief discussion of peer-to-peer systems, a first step in the shift from local to remote data storage and processing follows. The chapter continues with a discussion of technological advances that have made cloud computing possible and of the economical reasons why this new paradigm is attractive for many users and applications. Then we take a closer look at the cloud computing delivery models, Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS). SaaS gives the users capability to use applications supplied by the service provider but allows no control of the platform or the infrastructure. PaaS gives the capability to deploy consumer-created or acquired applications using programming languages and tools supported by the provider. IaaS allows the user to deploy and run arbitrary software, which can include operating systems and applications. The new paradigm raises ethical questions and has significant vulnerabilities each dissected in separate sections. Finally, the chapter presents the major challenges faced by this new paradigm. The chapter concludes with a overview of the literature and with a historic perspective"--

Cloud computing. --- Cloud theory. --- Computer science. --- Cloud computing --- Engineering & Applied Sciences --- Computer Science --- Information Technology --- General and Others --- Electronic data processing --- Web services --- Distributed processing --- 681.3*E2 --- 681.3*E1 --- 681.3*E1 Data structures: arrays; graphs; lists; tables; trees --- Data structures: arrays; graphs; lists; tables; trees --- 681.3*E2 Data storage representations: composite structures; contiguous representations; hash-table representations; linked representations; primitive data items --- Data storage representations: composite structures; contiguous representations; hash-table representations; linked representations; primitive data items

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Information retrieval --- Library automation --- Information technology --- Libraries --- Information storage and retrieval systems --- Automation --- -681.3*E2 --- 681.3*H33 --- Documentation --- Public institutions --- Librarians --- IT (Information technology) --- Technology --- Telematics --- Information superhighway --- Knowledge management --- Data storage representations: composite structures; contiguous representations; hash-table representations; linked representations; primitive data items --- Information search and retrieval: clustering; query formulation; retrieval models; search process; selection process --- 681.3*H33 Information search and retrieval: clustering; query formulation; retrieval models; search process; selection process --- 681.3*E2 Data storage representations: composite structures; contiguous representations; hash-table representations; linked representations; primitive data items --- 681.3*E2 --- Mechanization of library processes --- Systèmes, Conception de --- System design --- System design. --- Systèmes, Conception de --- Libraries - Automation --- Information, traitement de l' --- Recherche documentaire

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Mathematical logic --- Discrete mathematics --- Proof theory --- Combinatory logic --- Théorie de la preuve --- Logique combinatoire --- #TCPW P3.0 --- 681.3*F22 --- Logic, Symbolic and mathematical --- Logic, Combinatory --- Nonclassical mathematical logic --- Nonnumerical algorithms and problems: complexity of proof procedures; computations on discrete structures; geometrical problems and computations; pattern matching --See also {?681.3*E2-5}; {681.3*G2}; {?681.3*H2-3} --- Combinatory logic. --- Proof theory. --- 681.3*F22 Nonnumerical algorithms and problems: complexity of proof procedures; computations on discrete structures; geometrical problems and computations; pattern matching --See also {?681.3*E2-5}; {681.3*G2}; {?681.3*H2-3} --- Théorie de la preuve --- Logique mathématique --- Logique mathematique --- Theorie de la preuve

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File organization (Computer science) --- Database management --- Fichiers (Informatique) --- Bases de données --- Organisation --- Gestion --- Database management. --- 681.3*E2 --- File management (Computer science) --- File systems (Computer science) --- Organization, File (Computer science) --- Electronic data processing --- Data base management --- Data services (Database management) --- Database management services --- DBMS (Computer science) --- Generalized data management systems --- Services, Database management --- Systems, Database management --- Systems, Generalized database management --- Data storage representations: composite structures; contiguous representations; hash-table representations; linked representations; primitive data items --- File organization (Computer science). --- 681.3*E2 Data storage representations: composite structures; contiguous representations; hash-table representations; linked representations; primitive data items --- Banques de données --- Langages de programmation --- Programmation système (informatique)

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Graph theory --- Algorithms --- Théorie des graphes --- Algorithmes --- Graph algorithms --- 681.3*E1 --- 681.3*F22 --- Computer algorithms --- Data structures: arrays graphs lists tables trees --- Nonnumerical algorithms and problems: complexity of proof procedures computations on discrete structures geometrical problems and computations pattern matching --See also {?681.3*E2-5} {681.3*G2} {?681.3*H2-3} --- 681.3*F22 Nonnumerical algorithms and problems: complexity of proof procedures computations on discrete structures geometrical problems and computations pattern matching --See also {?681.3*E2-5} {681.3*G2} {?681.3*H2-3} --- 681.3*E1 Data structures: arrays graphs lists tables trees --- Théorie des graphes --- 681.3*E1 Data structures: arrays; graphs; lists; tables; trees --- Data structures: arrays; graphs; lists; tables; trees --- 681.3*F22 Nonnumerical algorithms and problems: complexity of proof procedures; computations on discrete structures; geometrical problems and computations; pattern matching --See also {?681.3*E2-5}; {681.3*G2}; {?681.3*H2-3} --- Nonnumerical algorithms and problems: complexity of proof procedures; computations on discrete structures; geometrical problems and computations; pattern matching --See also {?681.3*E2-5}; {681.3*G2}; {?681.3*H2-3} --- Computer science --- Discrete mathematics --- Informatique --- Graphes, Théorie des --- Graphes, Théorie des