Cloud computing (engl. Cloud  is a cloud; computing  are calculations)  — "cloud computing"  — the concept of "a computing cloud" according to which programs are started and issue results of work in a window of the standard web browser on the local PC, at the same time all applications and their data necessary for work are on a remote server in the Internet. The computers performing cloud computing are called "a computing cloud". At the same time loading between the computers entering "a computing cloud" is distributed automatically. The simplest example of cloud computing are p2p-networks. According to specialists, cloud computing  is the group of the technologies which are heading information technology development in general, having even a greater influence, than in due time electronic business.

[1] Opredeleniyenatsionalny institute of standards and technologies of the USA: according to a NIST "cloud computing" is a model of ensuring universal network access on demand to a shared pool of the configured computing resources which can be provided and implemented quickly with a minimum of administrative efforts or interactions with service provider. Cloud computing also should have five main characteristics: self-service on demand, broadband network access, a pool of resources, a possibility of fast reconfiguration or expansion and the measured service. Three service models - the program, the platform and infrastructure in the form of service and four models of implementation - are listed private, public, hybrid and public (community). The last is defined how "cloud infrastructure for use of consumers by limited community from the organizations having common interests".


Select three service models of cloud computing:

• Infrastructure-as-a-service (IaaS), infrastructure as service when the consumer uses computing resources of the supplier (the server, network infrastructure, the data warehouse);
• Platform-as-a-service (PaaS), platform as service when the supplier provides to the consumer access to use of a software platform;
• Software-as-a-service (SaaS), the software as service when the consumer can use the ready application of the supplier.

Cloud deployment models

Traditional and cloud models

Cloud Models

Besides, there are 4 models of deployment of cloud computing:

• Private cloud is a private cloud (for use on the scale of one organization),
• Community cloud is a public cloud (for use of consumers by a certain community),
• Public cloud is a public cloud (for free use) and also
• Hybrid cloud is a hybrid cloud (a certain combination of different cloud infrastructures).
• Peripheral calculations (Edge computing)

• Cloud computing (world market) (market of Russia)
• Bill of the cloud rights. Five steps in "clouds"
• Market of cloud computing: 10 main events of 2011
• Market of cloud computing: 10 main events of 2012
• Cloud computing: 10 changes which will happen to them by 2020.
• The hidden costs when using cloud solutions
• The place and role of intermediaries in a cloud IT system
• Main trends of IT market and transition to cloud computing by eyes of customers
• Trends of the market and future of cloud computing
• Points of negotiations with cloud provider
• Calculation of ROI of cloud services
• Security risks in a cloud
• Evolution of cloud computing will last till 2015
• The contribution of cloud computing to economy of five most developed European countries will be 177.3 billion euros a year
• Public clouds it is better private
• Anti-virus cloud
• SaaS - Software as service. Directory of solutions and projects!
• SaaS (market of Russia)
• SaaS (world market)
• Infrastructure as a Service, IaaS (world market)
• Infrastructure as a Service, IaaS (market of Russia)
• PaaS - Platform As A Service - the Business platform as service
• PaaS (world market)
• Everything As A Service (EaaS, Everything As A Service)
• Obstacles for implementation of cloud services