The concept of Cloud Computing (Cloud Computing) is defined by the National Institute of Standards and Technology in the US (NIST - National Institute of Standards & Technology) as follows: "Cloud Computing is a model of service that allows users to access resources Shared computing (networks, servers, storage, applications, services) through networking, with ease, anytime, anywhere, on demand. Resources computing can be set or canceled leave quickly by the user without the intervention of the service provider ". Features of Cloud Computing Services Cloud Computing Services true must have five characteristics: access computing resources over a network connection tape Wide Users configure on-demand services (on-demand self service) resources are shared by many users optimal use of resources is measurable (almost) real-time resources may increase / decrease quickly without the support of service providers Benefits of Cloud Computing Solutions / Services Cloud Computing will benefit customers wishing: To minimize investment risk in system technique. It needs Computing resources "volatility" fast there require high service availability (> 99.9%) There is high demand for bandwidth and quality of the network connection (Internet domestic and international) There needs monitoring system / service 24x7
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