云计算原理(英文版)
介绍云计算的英语作文
介绍云计算的英语作文Cloud computing is a revolutionary concept that has transformed the way we access and process data. It refers to the delivery of computing services over the internet, which includes servers, storage, databases, networking, software, analytics, and intelligence. This essay will explore the fundamentals of cloud computing, its benefits, and itsvarious deployment models.Fundamentals of Cloud ComputingCloud computing operates on a simple principle: instead of having a physical server or a local storage device, users can access a shared pool of computing resources over the internet. This is similar to how electricity is provided as a utility, where you only pay for what you use. The infrastructure is maintained by a cloud provider, which handles everything from data storage to processing power.Benefits of Cloud Computing1. Cost Efficiency: One of the most significant advantages of cloud computing is cost savings. It eliminates the need for businesses to invest in expensive hardware and software, as they can rent these resources as needed.2. Scalability: Cloud services can be easily scaled up ordown based on the demand. This flexibility allows businessesto handle sudden spikes in traffic without worrying about infrastructure limitations.3. Accessibility: Data and applications are accessible from anywhere with an internet connection, which is particularly beneficial for remote teams and global enterprises.4. Reliability and Redundancy: Cloud providers typicallyoffer high levels of reliability and redundancy, ensuringthat your data is backed up and always available.5. Maintenance and Updates: Cloud providers are responsiblefor maintaining the servers and software, which means that users do not have to worry about updates and patches.Deployment ModelsThere are three primary deployment models for cloud computing:1. Public Cloud: This is the most common model where services are provided over the public internet. Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform are examples of public cloud providers.2. Private Cloud: In this model, the cloud infrastructure is operated solely for a single organization, which can be managed by the organization itself or a third-party service provider.3. Hybrid Cloud: This combines elements of both public and private clouds, allowing for greater flexibility and theability to move workloads between the two environments. ConclusionCloud computing has become an integral part of modern IT infrastructure. It offers a range of benefits that make it an attractive option for businesses of all sizes. As technology continues to evolve, the adoption of cloud computing is expected to grow, further expanding the capabilities and services available to users around the world.。
双语教程云计算原理构架
双语教程云计算原理构架（实用版）目录1.云计算的概念和特点2.云计算的基本原理3.云计算的架构和关键技术4.云计算的应用场景和未来发展正文云计算是一种通过网络提供按需使用、可扩展的计算资源的新型计算模式。
它具有弹性、可扩展性、高可靠性和安全性等特点，可以有效满足用户在数据存储、计算能力、应用部署等方面的需求。
云计算的基本原理是利用大规模数据中心将计算资源（如服务器、存储设备、网络设备等）统一管理和调度，并通过互联网向用户提供按需使用的服务。
这种模式使得用户可以根据实际需求灵活获取和使用计算资源，无需购买和维护自己的硬件设备。
云计算的架构和关键技术主要包括以下几个方面：1.基础设施即服务（IaaS）：提供虚拟化的计算资源、存储资源和网络资源，用户可以根据需要自由配置和部署。
2.平台即服务（PaaS）：提供开发环境和运行环境，支持应用程序的开发、测试和部署，简化了开发流程。
3.软件即服务（SaaS）：提供预先开发好的应用程序，用户可以直接在线使用，无需购买和安装。
4.数据存储和处理：云计算平台提供了海量的数据存储和处理能力，能够满足大规模数据的存储和分析需求。
5.网络和安全：云计算平台提供了高速、稳定的网络连接和安全防护措施，保障用户数据的安全和隐私。
云计算的应用场景非常广泛，包括企业应用、在线教育、电子商务、游戏、金融、医疗等各个领域。
随着云计算技术的不断发展和成熟，其在未来的应用前景将更加广泛和深入。
总的来说，云计算作为一种新型的计算模式，其特点和原理使得用户可以更加灵活、高效地使用计算资源，而其架构和关键技术则保障了这种模式的实现和运行。
云计算技术英语
云计算技术英语Title: Understanding Cloud Computing TechnologiesCloud computing has revolutionized the way businesses and individuals interact with technology. At its core, cloud computing is the delivery of computing resources and data storage over the internet. These resources are provided on-demand and can be scaled up or down as needed. Thisflexibility allows users to pay only for the services they use, rather than investing in expensive hardware and software that may not always be fully utilized.The foundation of cloud computing is built upon a myriadof technologies that work in harmony to provide seamless services. These technologies include virtualization, utility computing, service-oriented architecture, autonomic computing, and network-based computing, among others. Let's delve deeper into each of these key technologies.Virtualization is a cornerstone of cloud computing. It enables the creation of virtual machines (VMs) which are software-based emulations of physical servers. These VMs can run multiple operating systems and applications on a single physical server, maximizing resource utilization and reducing costs. Virtualization also allows for the rapid deployment and decommissioning of environments, providing agility and scalability to cloud services.Utility computing extends the concept of virtualization by treating computing resources like a metered service, similar to how utilities like electricity are billed based on consumption. This model allows cloud providers to offer flexible pricing plans that charge for the exact resources used, without requiring long-term contracts or minimum usage commitments.Service-Oriented Architecture (SOA) is a design pattern that structures an application as a set of interoperableservices. Each service performs a unique task and can be accessed independently through well-defined interfaces and protocols. In the cloud, SOA enables the creation of modular, scalable, and reusable services that can be quickly assembled into complex applications.Autonomic computing is a self-managing system that can automatically optimize its performance without human intervention. It uses advanced algorithms and feedback mechanisms to monitor and adjust resources in real-time. This technology is essential in the cloud where the demand for resources can fluctuate rapidly, and immediate responses are necessary to maintain optimal performance.Network-based computing focuses on the connectivity between devices and the efficiency of data transmission. Cloud providers invest heavily in high-speed networks to ensure low latency and high bandwidth for their services. The reliability and security of these networks are paramount toensure uninterrupted access to cloud resources and to protect sensitive data from breaches.In addition to these foundational technologies, cloud computing also relies on advanced security measures, such as encryption and multi-factor authentication, to safeguard data and applications. Disaster recovery strategies, includingdata backups and replication across multiple geographic locations, are also critical to ensure business continuity in the event of a failure or disaster.Cloud computing models are typically categorized intothree types: Infrastructure as a Service (IaaS), Platform asa Service (PaaS), and Software as a Service (SaaS). IaaS provides virtualized infrastructure resources such as servers, storage, and networking. PaaS offers a platform fordevelopers to build, test, and deploy applications, while abstracting the underlying infrastructure layers. SaaSdelivers complete software applications to end-users via theinternet, eliminating the need for local installations and maintenance.Choosing the right cloud service provider is crucial for businesses looking to leverage cloud computing. Providerslike Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform (GCP) offer a range of services tailored to different needs and budgets. These platforms are designed to be highly scalable, reliable, and secure, with features such as automated scaling, load balancing, and comprehensive monitoring tools.Furthermore, cloud providers often offer specialized services for specific industries or use cases. For example, AWS offers Amazon S3 for object storage, Amazon EC2 for virtual servers, and Amazon RDS for managed databases. Microsoft Azure provides Azure Active Directory for identity management and Azure Machine Learning for building predictivemodels. GCP offers BigQuery for big data analytics and App Engine for scalable web application hosting.As cloud computing continues to evolve, new trends and innovations emerge. Edge computing, for instance, aims to bring computation closer to data sources by processing data at the edge of the network, reducing latency and bandwidth usage. Serverless computing, another rising trend, allows developers to focus solely on writing code without worrying about the underlying infrastructure, as the cloud provider dynamically manages the execution environment.In conclusion, cloud computing technologies have enabled a paradigm shift in how we approach IT resource management and consumption. By understanding the various technologies and models at play, businesses can make informed decisions about adopting cloud solutions that align with their strategic goals. As the landscape of cloud computing continues to mature, it will undoubtedly present newopportunities and challenges that must be navigated with a keen eye on technological advancements and market dynamics.。
Cloud-computing云计算纯英文介绍PPT课件
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英语作文介绍云计算
英语作文介绍云计算Title: Exploring the World of Cloud Computing。
In today's digital era, cloud computing has emerged as a revolutionary technology, reshaping the way businesses operate and individuals access information. This essay delves into the concept of cloud computing, its significance, benefits, and implications.### What is Cloud Computing?Cloud computing refers to the delivery of computing services—including storage, processing power, and applications—over the internet. Unlike traditional computing, where data and applications are stored on physical hardware, cloud computing enables users to access resources remotely via the internet.### Key Components of Cloud Computing:1. Infrastructure as a Service (IaaS): IaaS provides virtualized computing resources over the internet. Users can rent servers, storage, and networking infrastructure on a pay-as-you-go basis, eliminating the need for physical hardware maintenance.2. Platform as a Service (PaaS): PaaS offers a platform allowing developers to build, deploy, and manage applications without the complexity of infrastructure management. It provides tools and frameworks forapplication development and deployment.3. Software as a Service (SaaS): SaaS delivers software applications over the internet on a subscription basis. Users can access applications hosted in the cloud without the need for installation or maintenance.### Significance of Cloud Computing:1. Scalability: Cloud computing allows businesses to scale resources up or down based on demand, ensuring optimal performance and cost-efficiency.2. Cost-Effectiveness: By eliminating the need for upfront infrastructure investment and reducing maintenance costs, cloud computing offers a cost-effective solution for businesses of all sizes.3. Flexibility: Cloud computing enables remote access to resources, allowing users to work from anywhere with an internet connection. This flexibility promotescollaboration and productivity.4. Innovation: Cloud computing fuels innovation by providing access to advanced technologies such asartificial intelligence, machine learning, and big data analytics, empowering businesses to stay competitive in a rapidly evolving market.### Benefits of Cloud Computing:1. Accessibility: Cloud computing enables ubiquitous access to data and applications, allowing users to access information from any device, anywhere in the world.2. Reliability: Cloud service providers offer robust infrastructure with built-in redundancy and disaster recovery mechanisms, ensuring high availability and reliability of services.3. Security: Cloud providers implement stringent security measures to protect data from unauthorized access, ensuring data confidentiality and integrity.4. Scalability: Cloud computing platforms allow businesses to scale resources dynamically to meet changing demand, ensuring optimal performance and cost-efficiency.### Implications of Cloud Computing:1. Data Privacy: Storing data in the cloud raises concerns about data privacy and compliance with regulatory requirements such as GDPR and HIPAA. Organizations must implement appropriate security measures and data governance policies to protect sensitive information.2. Vendor Lock-in: Dependence on a single cloud provider may lead to vendor lock-in, limiting flexibility and hindering migration to alternative platforms. Adopting a multi-cloud or hybrid cloud strategy can mitigate this risk.3. Internet Dependency: Cloud computing relies on internet connectivity, and disruptions in internet service can impact accessibility and productivity. Organizations should have contingency plans in place to mitigate the impact of internet outages.In conclusion, cloud computing represents a paradigm shift in the way computing resources are delivered and consumed. With its scalability, cost-effectiveness, and flexibility, cloud computing offers unprecedented opportunities for innovation and growth. However, organizations must address challenges related to security, data privacy, and vendor lock-in to fully harness the benefits of cloud computing.。
浅谈云计算(英文版)
A Review Of Cloud ComputingTeam members：许慧平赵曼刘强罗宾2012年3月22日A Review Of Cloud ComputingAbstract:cloud computing is a kind of super calculation mode based on Internet. For the category of cloud computing ,this paper concludes the concept of cloud computing , emerging background, the present main applications, the future development of the prospect and the present's problems.Keywords: cloud computing; data processing; distributed computing; Internet1. Producing of Cloud Computing1.1 what is cloud computingThe producing of Cloud computing has a big background inevitability.First,the development of Communication and Internet is faster than the development of Computer .That situation offers a soil for growing of Cloud computer.Second, Software engineering changed the way of faceing the service such as facing machine,language and middleware into the way of facing service and need.That made SAAS （Software as a Service）to come true.Third, the users beginning to pay close attention to core business more and more.They don't need to become a real “Amateur engineers”.It is what the Cloud computer brought the important changing on the way of using IT facility for users.Cloud computing is a resource delivery and usage model, it means get resource (Hardware, software)via network. The network of providing r esource is called ‘Cloud’. The hardware resource in the ‘Cloud’ seems sc alable infinitely and can be used whenever.1.2 The principle of cloud computing1.2.1 three method of calculation:Parallel processingParallel processing computer system can perform a calculation of two or more processors. Processors can work simultaneously on different aspects of the same program. For the use of parallel processing,it can be said of a program executed on n processors speed may be performed on a single processor speed n times.Distributed processingDistributed processing system will be in different locations or multiple computers with different functions or different data communications network linking under the control of the control system of unified management and coordination to complete the computer system for information processing tasks.Grid computingGrid computing is accompanied by the Internet and the rapid development of the new computing model, specifically for complex scientific calculations. This computing model is the use of the Internet dispersed geographically computer organization into a "virtualsupercomputer", each of which involved in the calculation computer is a "node", the entire calculation is made up of thousands "nodes "consisting of a grid, so this method of calculation is called grid computing.What cloud computing is? Cloud computing is an emerging business computing model.Specifically, Cloud Computing is a kind of distributed processing,parallel processing and grid computing development, or commercial implementation of these computer science concepts The transmission capacity of the high-speed Internet, data processing process from a personal computer or server to a cluster of computers on the Internet., This is a revolutionary move, the analogy, which is like a shift from the old single-generator mode to the mode of the power plant centralized power supply. It means that computing power as a commodity circulation, like gas, water and electricity, like, access to convenient, low-cost. For example it! Our computing model is most locally installed software, and then exchange data with the server through local processing, cloud computing, we do not need local processing, just use the browser.After understanding of what cloud computing, let us understand some of the other cloud computing.Cloud Computing ArchitectureMost of the cloud computing infrastructure is transmitted through the data center a reliable service and the different levels of virtualizationtechnology on the server. People can use these services in any network infrastructure.Cloud serverCloud server is a set of clustered servers on virtual quasi-independent part of the server, cluster, each server has a mirror image of the cloud server.Also cloud computing is similar with VPS server virtualization technology, cloud server is a VPS is a virtual software, the VZ or VM on a single server virtual quasi-independent part of the server, each part can be done to separate the operating system, management methods the same server.1.2.2 The core technology of cloud computing1)Programming model. For large-scale data sets (greater than 1TB)parallel computing. Strict programming model that makes cloud computing programming environment is very simple.2)Huge amounts of data distributed storage technology.Cloudcomputing system consists of a large number of servers, as well asa large number of users, cloud computing system uses the storeddata of distributed storage, redundant storage to ensure data reliability.3)Huge amounts of data management technology.Cloudcomputing on the distribution of vast amounts of data processing,analysis, data management technology necessary to efficiently manage large amounts of data.Virtualization technology. Virtualization technology enables software applications and the underlying hardware isolation, which includes a single resource is divided into multiple virtual resources splitting mode, including the integration of multiple resources into a virtual resource aggregation mode. Abstract the server physical resources into logical resource, allows a single server into several virtual servers or even hundreds of isolated, we are no longer limited by physical boundaries, but the CPU, memory, disk I / O hardware into a dynamic management of the resource pool, to improve resource utilization, simplify systems management, server consolidation, IT business change more resilient.2.1 The application area of Cloud ComputingAs well known,a new technology is invented is to meet the needs of the application.And the technology will also continuously improve and develop with the needs of the application.So is the Cloud Computing.Cloud computing are able to be applied because of its mass of data processing power and efficient computational ability.But Owing to the cloud computing started late,now a lot of application are still instudying stage.Thus,I only plan to introduce some applications which have used as following.2.1.1 Scientific researchThere are three major applications in scientific research,namely earthquake monitoring,marine information monitoring and astronomy calculation information processing.These applications need to combine with sensor technology.Such as temperature transmitter,depth sensor.The sensors are used to collect signal and convert to voltage signal,then send them to Cloud computing servers through Internet to process and store.We can get from the servers when needed at any time.Because the information is of large amount,it need high speed powerful computer to process,now the "Cloud" is used on.This is the major using of Cloud.2.1.2 Network SecurityNetwork security is now a very popular topic.Especially the network virus is growing rapidly.So virus library storage is a major concern.Cloud mass data storage capacity can meet the need.For example,Rising "Cloud Security" plan,its working principle is as follows.The client can be automatically to connect to the server and scanning user's PC,then send the suspicious objects to servers to match and return the result in seconds.The servers will warn the client to deal with the object if the object is virus.Another using is the Spam shielding which is also used thecloud mass data storage capacity.2.1.3 MedicineDNA information storage is the best reflecttion of the mass data storage of cloud.1.3 billion people in the world with unique DNA information need to store and analysis.We must have enough room to store the information and access to it at any time.The "Cloud" is used to achieve it.And it's also applied to cases storage which can help to achieve global medical integration.Besides,medical image processing is also a important application.2.1.4 InternetNow the most important applications of network is retrieval service.But the mass of information stored in the servers.In order to get what the user wanted,the Internet suppliers must supply fast and efficient algorithm to screening best matched information.Thus the cloud's efficient computing power is used to do it.For example,Google Cloud computing platform is put forward just to implement efficient retrieval function at first.And E-mail server and online real-time translation are also used on Cloud.2.1.5 The radio and television industry applicationThis application only on ideas stage now and it has not come into use.The idea is big cable companys can establish a Cloud computingplatform together to meet their need to make high definition and high quality audio.At the same time,a litter cable companys also want to make some high quality audio,but they can not afford to the high configured equipments.So the big cable companys can spare some idle resources to the litter ones which needed.In this way,not only can they meet their own need,but also can they make fully use of their resources.Otherwise,now some sensitive information like radio and video need large mount of space to store,so we can store them to the Cloud which has mass data storage capacity.2.2 The four famous Cloud service platformsActually, the Cloud Computing research by academic is much earlier than the proposal of its concept.We ,the Chinese researchers,have had the transparent Computing idea before the emergence of the term which is called "Cloud Computating".Transparent cloud computing embodies the characteristics of cloud computing,that is dynamic resource pools, virtualization, transparent to the user etc.At present,industry to provide cloud computing that not many companies.And more influential platforms have Google Cloud computing platform, IBM Blue Cloud platform,Amazon Elastic Compute Cloud(EC2) platform and Microsoft Azure computing platform.2.2.1 Amazon EC2 platformAmazon is a E-commerce company which is the earliest to supply Cloud computing service.Every day a huge amount of business transactions require a huge amount of data centers to improve the availability of services, which may cause the waste of idle computing resources and network resources.In order to improve the efficiency, Amazon set up the EC2 platform.Customers can be provided by EC2 web server interface to create the virtual machine to run their applications so as to realize the deployment of the scalability, the user on-demand instant pay.In this way,for ISP not only can they meet their own need,but also solve the problem of wastage of resources and make resources the most efficiently used.To the customers,Both saved the high cost of high performance hardware configuration, also can call charges minimum cost but it can get the best service to the forehead.2.2.2 Search engineWith Google's cloud computing platforms for representative.Search engine is a system to provide users with retrieval service,which refers to certain strategy, using specific computer program search of information on the Internet, in information for organization and processing, and will show to users after processing the information .In Web1.0 era, information on the Internet without so much now, users need to guide to browse information.And now, with the Internet information explosive growth, there is a large amount of information required to store and forthe user to browse, users need from the vast amount of information they want to extract useful information, must depend on the search engine to find, so the cloud computing is put on the agenda.In order to be able to retrieve the mass information in the user need useful information, there must be quick optimization retrieval algorithm to solve the communication between the server and writing problems, and complete the rapid and effective information retrieval functions.The client can provide the key word to search for "clouds" of the computer, the computer through mutual cooperation assigned tasks to complete the information to the retrieval, and then returned to the user of the client, it will be faster and more effective than PC directly to the server request data retrieval.2.2.3 Microsoft Azure cloud computing platformWindows Azure is a cloud service operating system, providing developers with the need to use the calculation and storage resources.Azure cloud platform contains four levels.The bottom is Microsoft global basis service system, the cloud infrastructure services layer takes Windows Azure operating system as core, Windows Azure above is a application service platform, for the user to provide a series of services, the top is Microsoft for the user to provide services.As most Windows users now is, which allows the user to sustain their usage, faster application will run on migration to the Azure platform.2.2.4 IBM Blue Cloud platformIBM's Blue computing platforms will expand the technology used on the Internet to enterprise platform, so the data center using similar on the Internet computing environment.It consists of a data center, IBM Tivoli monitoring software, DB2 database, IBM Tivoli deploy management software, and IBM Web Sphere application server virtualization software and open source and some open source information processing software.Blue software platform characteristics are mainly embodied in the virtual machine and mass data processing software for Apache Hadoop use on.Through the way of the virtual machine , cloud computing platform has some advantages as the follows.First,process transfer method more flexible.Second,reduce the cluster electric power, achieve the purpose of saving energy.Third,to get the load balance has nothing to do with application performance.Fourth,the deployment of more flexible.Now,with the development of Cloud computing technology,more and more applications will be put forward and put into use.Our life will open cloud era.3. Development of cloud computing3.1 Technology prospectsIn the user's standpoint, cloud computing system will put all kinds of data including user data to a remote cloud storage platform through the network, reducing the burden of management for data users; At the same time, cloud computing systems will also deal with data service program through the remote large-scale computing clouds processing platform, and can afford large amounts of data processing work. It can be said that cloud computing is a complex of data sharing calculation mode and Shared services calculation mode, and will be the next generation of computing model . From the platform technology architecture we can see, cloud computing has three characteristics, that system based on the scale of the cheap server cluster , through the infrastructure and the upper applications to maximize the efficiency of the collaborative construction to use hardware resources , and tolerating mistakes of multiple nodes through the software method . Because the cloud computing have these three basic characteristics above, it reached two aspects of target of a distributed system,i.e. scalability and reliability.In the future, there are two main development directions: one is the establishment of integrated mass bottom infrastructure, making the application to expand to a very large size; the other is by establishing new cloud computing applications, to provide more rich user experience online. The first development trend has been reflected by the existingresearch of the cloud computing . And as for the construction of the cloud computing applications, a lot of new social service networks, such as facebook, etc, had reflected the development trend, and the research is beginning to focus on how to combine multiple businesses.3.2 Commercial prospectsCloud computing is not only the core of the calculation, is also a kind of service, a commercial applications. Large scale, virtualization, high reliability, high expansibility and compatibility , many agencies are doing research on it . Cloud computing is an operation mode, in this mode, IT application data and IT resources data are provided through the network to all kinds of users widespread through the network . Cloud computing is the business model of charging by using, simplified service interface.Cloud computing will have a significant impact to individuals, small or medium-sized enterprises, IT industry and other aspects . For individuals, cloud computing will change the habit of computer using, from desktop as the core to more Web as the core, the computer degenerated into a simple terminal. Cloud computing services will realize from the computer to cell phones, car, home appliance migration, puting all the computer networking to home appliances. For small and medium-sized enterprises, business information and management platform will be deployed to cloud computing platforms, the cost of theinvestment will be greatly reduced .Thus,products and market competition become brutal. In the IT industry, to the server manufacturers, cloud computing and data center make the demand for server systems expand , market prospect is promising. To the terminal equipment manufacturers, networked computing clouds interruptting equipment, especially small mobile equipment diversifiing and individuation development provides an important opportunity. For the software industry, with technology, data and service networked, Google and other network service companies need to change the commerce mode of software using.Microsoft dominating the desktop system will no longer be the situation, service in the software industry faces new challenges. In addition, cloud computing, attributes to safety of international public information service network, making enormous influence on national security system .According to the latest data, cloud computing will be in 2013 up to 10% of the overall IT consumption, yearly gains as high as $42.2 billion. In four years, the market will have a great value, cloud computing applications will run everywhere. It brings the upheaval of the history, the PC era has already crossed over to the cloud computing era.3.3 Problems cloud computing faced withThe benefits of cloud computing so attractive, but at the same time, it has high risk. 1. safety: use cloud computing means that data is transferred to the machines beyond user's sovereignty, that is to the cloud computing service provider , then people worring about the safety of these data also makes sense. How to ensure that the user information and privacy or business data don't leak out or be stolen is what users most concern about. 2. data isolation: due to the characteristics of cloud computing, users don't know which server the data stored in . And information protection laws and regulations are different in different countries, how to ensure that data isolation; 3. user data long-term existense: the IT world competition is intense, services the company is likely to be eliminated, annexation at any time, how to ensure that the user data long-term viability; 4. reliability and contrllability: the interruption of amazon s3 service in 2008, GoogleApps service , Gmail service let us seen the awkwardness of computing clouds for two earliest advocates because of network fault .Especially the loss caused by large enterprise is immeasurable, how to guarantee the reliability of the cloud computing , how to improve the controllability; 5. hackers using: the characteristic of providing extremely low cost effectiveness can also be made use of hackers to gain super calculating power with little cost.Once these "cloud" is used to decipher all kinds of password to all kinds of attacks, damage and other activities, it will do great harm tosociety.Despite that cloud computing is the trend of the future technology, but factors above may be huge obstacles for the development and popularization of cloud computing , so it is important and urgent to solve these problems in the development of cloud computing .References:[1] Chunye Gong ,Jie Liu,,Qiang Zhang,Haitao Chen and Zhenghu The Characteristics of Cloud Computue Depatment of Computer Sciences ,National University of Defense Technology,Changsha,China [2] 维基百科. Cloud computing [EB /OL ]. [2009 - 03 - 10 ]. http: / /en. wikipedia. org/wiki/Cloud_computing.[3] 中国云计算网.什么是云计算? [ EB /OL ]. (2008 - 05 - 14 )[2009 - 02 - 27 ]. http:/ /www. /Article /ShowArticle. asp?Article ID = 1.[4] V AQUERO L M, RODERO2MER INO L, CACERES J, et al. Abreak in the clouds: Towards a cloud definition [ J ]. ACM SIG2[5] 秦小康解析开源云计算的未来COMMUNICATION WORLD 2009(42)[6] 陈全，邓倩妮.云计算及其关键技术.2009.9[7] COMM Computer Communication Review, 2009, 39 (1) : 50 - 55.[7]Zhang YX, Zhou YZ. 4VP+: A novel meta OS approach for streaming programs in ubiquitous computing. In: Proc. of IEEE the21st Int’l Conf. on Advanced Information Networking and Applications (AINA 2007). Los Alamitos: IEEE Computer Society, 2007. 394−403.[8] Zhang YX, Zhou YZ. Transparent Computing: A new paradigm for pervasive computing. In: Ma JH, Jin H, Yang LT, Tsai JJP, eds. Proc. of the 3rd Int’l Conf. on Ubiquitous Intelligence and Computing (UIC 2006). Berlin, Heidelberg: Springer-Verlag, 2006. 1−11.[9] 陈康，郑纬民.云计算：系统事例与研究现状.2008,10.9[10] 李永楠，李德忠.浅谈云计算优势、应用及发展.2011(3)[11] Microsoft.Windows Azure./windows azure/[12] 王振中，宋宜纯.云计算及其应用.2010(12)[13] IBM.Cloud Computing,/ibm/cloud/。
Cloud_computing云计算纯英文ppt介绍
Cloud
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Definition of Cloud Computing Background of Cloud Computing
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Virtualization Technology
Cloud computing cut physical resources through virtualization technology,and make it possible for the on-demand allocation and automatic growth of resources.
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Cloud Computing Platform Administration Technology
Cloud computing platform technology enables a large number of servers to work together to facilitate the conduct of the business deployment and the opening of quickly detecting and recovering from system failures, through automation, intelligent means to achieve reliable operation of large-scale systems.
什么是云计算？ 中英互译
Simply put, cloud computing is the delivery of computing services— including servers, storage, databases, networking, software, analytics, and intelligence—over the Internet (“thecloud”) to offer faster innovation, flex- ible resources, and economies of scale. You typically pay only for cloud ser- vices you use, helping lower your operating costs, run your infrastructure more efficiently and scale1 as your business needs change.简单来说，云计算就是通过因特网(“云”) 提供计算服务——包括服务器、存储功能、数据库、联网、软件、分析功能和智能功能——以加快创新、使资源配置更灵活，实现规模经济。
通常你只需为自己所使用的云服务付费，这有助于降低运营成本，更高效地运行基础设施，并根据业务需求的变化作出调整。
Top benefits of cloud computing云计算的好处Cloud computing is a big shift from the traditional way businesses think about IT resources. Here are seven common reasons organisations are turning to cloud computing services:云计算不同于企业对 IT 资源的传统认知，它是一项重大变革。