Cloud computing: basic description
Cloud computing can be well understood as an advanced feature of the Internet that allows users to easily take advantage of a “cloud of on-demand computing resources, such as servers, storage and even data centers” , based on usage billing. The cloud service has three main features: it is available on demand (usually on an hour or minute basis), allowing users to take advantage of the services offered and some of them if needed, and is fully managed by a 30-year Service Provider. A PC connected to the Internet is all you need to access the cloud from anywhere, anytime.
Types of infrastructure in the cloud
The cloud can be generic or special or a combination of both (called hybrid cloud). The public cloud is accessible to everyone on the Internet, while the private cloud infrastructure is limited to one company. Public or private cloud computing aims to provide users with easy access to computer services and computing resources. The hybrid cloud is made up of several zippers (public or private) acting as individual entities and offering the benefits of several publishing models.
There are three types of cloud services: Saas (software as a service), PaaS (platform as a service), and IaaS (infrastructure as a service). SaaS runs on remote computers owned by third parties and connects to your computer via the Internet and a web browser. PaaS creates a virtual environment that contains everything you need to support a complete lifecycle to develop and deploy applications in the cloud, without the complexity and cost of buying and upgrading cloud-based applications. software, hardware and main hosts. For IaaS, customers have IT resources such as storage, servers, data centers, and pension-based network services.
The main benefits of cloud computing.
Cloud computing increases the efficiency of shared resources. Resources are not only shared by multiple users, but are also reallocated as needed. This cloud feature is very useful for allocating computing resources to users in different time zones. When a company goes to the cloud, it means switching from traditional Capex (purchase and progressive use of the custom hardware package) to Opex (the cloud for usage sharing payment). The main benefits of cloud services are the reduction of technology infrastructure costs, the simplification of processes, the improvement of access, the reduction of capital costs, the improvement of flexibility, the globalization of work, etc.
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