Shulou(Shulou.com)06/03 Report--

Cloud computing is a computing style in which resources can be obtained through Internet. Typically, these resources are scalable and highly visual resources that are provided as services. Cloud computing is divided into three categories, namely, SaaS (Software as a Service), PaaS (platform as a Service) and IaaS (Infrastructure as a Service). According to the deployment location, clouds are divided into two types: private cloud and public cloud. As the name implies, the public cloud allows everyone to access its content through Internet, while the private cloud only allows corporate or approved users to use it. However, the internal computing model and infrastructure that allow managed services are very similar in both private and public clouds.

What is public cloud?

The public cloud is a service provided through Internet. Typically, users of the public cloud will pay monthly for the use of each bandwidth. Users do not need to purchase any storage hardware because it provides on-demand scalability. It is the company's responsibility to provide services to manage infrastructure and resource sets. Because users of the public cloud do not need to purchase software or hardware in advance, the initial cost is extremely low. The amount of data in the public cloud may vary, from backups of only a single laptop to applications in the gigabyte range. In public clouds, costs increase as data storage time increases, so they are more suitable for dynamic data.

What is a private cloud?

The private cloud is deployed inside the firewall and its management is handled by the enterprise providing the service. Typically, the customer provides the hardware needed to operate the private cloud. Storage is not usually shared by anyone other than the enterprise, and the storage is controlled by the company. Similarly, users fully manage the architecture of the cloud. As a result, enterprises can expand the cloud by adding more servers to improve performance and capacity. Private cloud is highly scalable because of its self-management characteristics. Private clouds typically start with a few megabytes and then expand by adding new nodes as required by the enterprise. In a private cloud, storage duration usually does not affect costs. Therefore, they are ideal for archiving data for long periods of time.

What's the difference between a private cloud and a public cloud?

Although both public and private clouds use similar internal computing models to host services, they have several key differences. The main difference is that private clouds are always deployed inside firewalls, while public clouds can be used through Internet. Therefore, if you have users all over the world, the public cloud is more appropriate, because the private cloud is usually only accessible through the LAN. Compared with the private cloud, the enterprise has more control over the data isolation, security and privacy level in the private cloud. The cost of a public cloud can be lower than that of a private cloud because users are not required to purchase resource equipment in advance.

If an enterprise needs to implement management software in the process of informatization, it can be built using a white code-free development platform, which supports the combination of hybrid cloud, public cloud and private cloud services, security and self-control. it also supports private cloud deployment to make data more secure and reliable, and the code-free development platform also allows enterprise business personnel to use a visual interface. The management system can be built by dragging components directly, without programming foundation, and a set of management systems such as ERP, CRM, OA can be made in a short time to help enterprises promote the information process.

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