3.15 Fake! Teach you to tell all kinds of cloud lies

From the moment the concept of cloud computing was born, cloud computing now claims to have landed safely around the world. The industry has always had a wide range of misconceptions about cloud computing. So, on a special day in the 3.15 consumer Rights Day, the editor decided to face cloud computing from several layers, pointing out the possible errors in the process of understanding cloud computing to help corporate CIOs better choose and apply cloud computing.

First, let's take a look at what cloud computing is, and what features it has.

In this way Wikipedia describes cloud computing, an internet-based computing method in which shared hardware and software resources and information can be supplied to computers and other devices on demand. The whole operation is like a grid.

Cloud computing is another big change since the 1980 mainframe computer to client-server transformation. Users no longer need to know the details of the infrastructure in the cloud, without the expertise or direct control. Cloud computing describes an internet-based new IT service growth, usage, and delivery model that typically involves providing dynamically scalable and often virtualized resources over the Internet.

Cloud Composition Structure

Cloud is actually a metaphor of the internet and the Internet. Because in the past, the cloud was used to represent the telecommunication network, which was later used to express the abstraction of the Internet and the underlying infrastructure. Typical cloud-computing providers often provide a common network business application that can be accessed through software such as browsers or other Web services, while software and data are stored on the server. The key elements of cloud computing include a personalized user experience.

Currently, cloud computing encompasses the following three levels of services: infrastructure as a service (IaaS), platform as a service (PaaS), and Software as a service (SaaS). Cloud computing services typically provide common, online business applications that are accessed via browsers, and software and data can be stored in data centers.

Baidu knows the definition of cloud computing from the narrow and broad two aspects. Narrow cloud computing refers to the delivery and usage patterns of IT infrastructure, which means acquiring the required resources through the network on an as-needed and extensible basis; broad cloud computing refers to the delivery and usage patterns of services, which means that the required services are obtained through the network in an on-demand, extensible manner. This service can be it and software, Internet-related, but also other services. It means that computing power can also be used as a commodity to circulate through the Internet.

There are also industry experts who consider the four features of cloud computing:

(1) Virtualization technology: The use of software to achieve the virtual management of hardware resources, scheduling and application.

(2) Customization Flexibility: Cloud computing era users can be based on preferences to develop services, applications and so on.

(3) Strong scalability: In the cloud computing system, the server can add real-time to the existing server group, improve the "cloud" processing capacity.

(4) Cost-effective: cloud computing for users of the minimum hardware requirements, easy to use, software need not purchase and upgrade only need to customize, server-side can also be used to make a low-cost pc cloud, thereby reducing user hardware input.

Use these four characteristics to assess any cloud, you can identify the authenticity.

(Responsible editor: Duqing first)