Cloud Computing Concept of Lv Yun Cloud Computing Hotel Management System

Cloud computing is a new business computing model developed from distributed computing, parallel computing and grid computing. At present, the understanding of cloud computing is constantly developing and changing, and there is still no universally agreed definition of cloud computing. Liu Peng, an expert in grid computing and cloud computing in China, gave the following definition: "Cloud computing distributes computing tasks on a resource pool composed of a large number of computers, so that various application systems can obtain computing power, storage space and various software services as needed". In a narrow sense, cloud computing means that manufacturers build data centers or supercomputers through distributed computing and virtualization technologies, and provide services such as data storage, analysis and scientific computing to technology developers or corporate customers in a free or on-demand manner, such as Amazon data warehouse leasing business. Cloud computing in a broad sense means that manufacturers provide different types of services such as online software services, hardware leasing, data storage, calculation and analysis to different types of customers by establishing network server clusters. Cloud computing in a broad sense includes more vendors and service types, such as online financial software launched by Lv Yun Cloud Computing Hotel Management System, management software vendors such as UFIDA and Kingdee, and Google application suite released by Google. The core idea of cloud computing is to reduce or even eliminate the processing burden of user terminals by continuously providing "cloud" processing power, and finally simplify user terminals into simple input and output devices; And through the "cloud", the scale and quantity of hotels can be expanded infinitely, and the management and marketing functions required by hotel users can be expanded infinitely.

The important feature of cloud computing service is that it can be obtained anytime and anywhere, used on demand and paid for by use.

Generally speaking, the "cloud" of cloud computing is the resources on the server cluster on the Internet, including hardware resources (server, storage, CPU, etc. ) and software resources (such as application software, integrated development environment, etc. The local computer only needs to send a demand message through the Internet, and thousands of computers at the far end will provide you with the resources you need and return the results to the local computer. In this way, the local computer hardly needs to do anything, and all the processing is completed.

Service forms and applications

Cloud computing is still in its infancy, and various vendors are developing different cloud computing services. Cloud computing takes many forms. Simple cloud computing can be seen everywhere in people's daily network applications, such as online Flash pictures provided by Tencent QQ space, Google search service, Google Doc, Google applications and so on. At present, the main service forms of cloud computing are SaaS (software as a service), PaaS (platform as a service) and IaaS (infrastructure as a service).