Cloud Computing
Cloud computing is the latest of computing paradigms. It promises to change the way people use computing resources. Using Internet as the backbone, cloud computing asserts that it is possible to provide computing as a “utility” to end users “as and when needed” basis. Cloud computing has a potential to serve users of all kinds: individual users, institutions, industry at large. This report cover issues such nature and scope of cloud computing, its applications, business rationale etc. Cloud computing is a business model that harnesses the web as the ultimate business platform. Cloud computing is impregnated with immense potential for array of practical applications. The model is expected make computing needs available via web on retail basis and is called cloud computing. Cloud computing intends to make the Internet the ultimate home of all computing resources- storage, computations, applications and allow end user to available them in quantities of her choice, location of their preferences, for duration of their liking. In other world web become the provision store for all your computing needs.
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Cloud Computing
- 2. INTRODUCTION • With traditional desktop computing, we run copies of software programs on our own computer.The documents we create are stored on our own pc. • Although documents can be accessed from other computers on the network, they can’t be accessed by computers outside the network.This is PC-centric. • With cloud computing, the software programs one use aren’t run from one’s personal computer, but are rather stored on servers accessed via the Internet. • If a computer crashes, the software is still available for others to use. Same goes for the documents one create; they’re stored on a collection of servers accessed via the Internet. • Anyone with permission can not only access the documents, but can also edit and collaborate on those documents in real time. • Unlike traditional computing, this cloud computing model isn’t PC-centric, it’s document- centric.
- 3. WHAT IS CLOUD COMPUTING? • Cloud computing is a type of computing that relies on sharing computing resources rather than having local servers or personal devices to handle applications. • In cloud computing, the word cloud (also phrased as "the cloud") is used as a metaphor for "the Internet," so the phrase cloud computing means "a type of Internet-based computing," where different services such as servers, storage and applications are delivered to an organization's computers and devices through the Internet. • Cloud computing is comparable to grid computing, a type of computing where unused processing cycles of all computers in a network are harnesses to solve problems too intensive for any stand-alone machine.
- 4. WHY CLOUD COMPUTING? • User centric • Task Centric • Powerful • Self Healing • Multi-tenancy & Intelligence • Programmable • Flexible
- 6. CLOUD SERVICE MODELS 1. SOFTWARE AS A SERVICE (SaaS): Applications hosted by a provider on a cloud infrastructure are accessed from thin or thick clients over the network or a program interface (for example, web services). Examples are Google Docs, IBM SmartCloud Docs, IBM SmartCloud Meetings, Saleforce.com’s CRM application and so on. 2. PLATFORM AS A SERVICE (PaaS): Providers deliver not only infrastructure but also middleware (databases, messaging engines and so on) and solution stacks for application build, development and deploy. IBM SmartCloud Application Services and GoogleApp Engine are two examples of PaaS. 3. INFRASTRUCTURE AS A SERVICE (IaaS): It is the delivery of computing infrastructure as a service. IBM SmartCloud Enterprise+, SoftLayercloud and Amazon EC2 are some examples of IaaS.
- 7. CLOUD PROVIDERS •AmazonWeb Services •Google Compute Engine •CloudBees •Rackspace •CloudSigma
- 8. CLOUD STORAGE Cloud storage means "the storage of data online in the cloud," wherein a company's data is stored in and accessible from multiple distributed and connected resources that comprise a cloud. TYPES OF CLOUD STORAGE 1. PersonalCloud Storage 2. Public Cloud Storage 3. Private Cloud Storage 4. Hybrid Cloud Storage
- 9. ADVANTAGES • Lower computer costs • Improved performance • Reduced software costs • Instant software updates • Improved document format compatibility • Unlimited storage capacity • Increased data reliability • Universal document access • Latest version availability • Easier group collaboration • Device independence
- 10. DISADVANTAGES • Requires a constant Internet connection • Does not work well with low-speed connections • Features might be limited • Can be slow • Stored data might not be secure • Stored data can be lost
- 11. CONCLUSION Like everything else, cloud computing too has its pros and cons. While the technology can prove to be a great asset to your company, it could also cause harm if not understood and used properly. Cloud Computing is a vast topic and the above report does not give a high level introduction to it. It is certainly not possible in the limited space of a report to do justice to these technologies. Cloud Computing is a technology which took the software and business world by storm.The much deserved hype over it will continue for years to come.