Cloud Computing

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Presentation Transcript

Cloud Computing : 

Cloud Computing -Raghavi Reddy

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. Introduction

Slide 3: 

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.

What Is Cloud Computing? : 

Key to the definition of cloud computing is the “cloud” itself. Here , the cloud is a large group of interconnected computers. These computers can be personal computers or network servers; they can be public or private. This cloud of computers extends beyond a single company or enterprise. The applications and data served by the cloud are available to broad group of users, cross-enterprise and cross-platform. Access is via the Internet. Any authorized user can access these docs and apps from any computer over any Internet connection. What Is Cloud Computing?

Slide 7: 

key properties of cloud computing: Cloud Computing Is User Centric : Once as a user are connected to the cloud, whatever is stored there—documents, messages, images, applications, whatever—becomes authorized to the user access them. In addition, not only is the data, but one can also share it with others. In effect, any device that accesses your data in the cloud also becomes yours.

Slide 8: 

Cloud Computing Is Task-Centric: Instead of focusing on the application and what it can do, the focus is on what one need done and how the application can do it for us. Traditional applications—word processing, spreadsheets, email, and so on—are becoming less important than the documents they create. Cloud Computing Is Powerful: Connecting hundreds or thousands of computers together in a cloud creates a wealth of computing power impossible with a single desktop PC.

Slide 9: 

Cloud Computing Is Accessible: Because data is stored in the cloud, users can instantly retrieve more information from multiple repositories. We are not limited to a single source of data, as we do with a desktop PC. Cloud Computing Is Intelligent: With all the various data stored on the computers in a cloud, data mining and analysis are necessary to access that information in an intelligent manner.

Slide 10: 

Cloud Computing Is Programmable: Many of the tasks necessary with cloud computing must be automated. For example, to protect the integrity of the data, information stored on a single computer in the cloud must be replicated on other computers in the cloud. If that one computer goes offline, the cloud’s programming automatically redistributes that computer’s data to a new computer in the cloud.

Slide 11: 

How Cloud Computing Works? Sun Microsystems’s slogan is “The network is the computer,” and that’s as good as any to describe how cloud computing works. In essence, a network of computers functions as a single computer to serve data and applications to users over the Internet. The network exists in the “cloud” of IP addresses that we know as the Internet, offers massive computing power and storage capability, and enables wide scale group collaboration.

Slide 12: 

Understanding Cloud Architecture: Individual users connect to the cloud from their own personal computers or portable devices, over the Internet. To these individual users, the cloud is seen as a single application, device, or document. The hardware in the cloud (and the operating system that manages the hardware connections) is invisible.

Slide 14: 

It all starts with the front-end interface seen by individual users. This is how users select a task or service (either starting an application or opening a document). The user’s request then gets passed to the system management, which finds the correct resources and then calls the system’s appropriate provisioning services. These services carve out the necessary resources in the cloud, launch the appropriate web application, and either creates or opens the requested document. After the web application is launched, the system’s monitoring and metering functions track the usage of the cloud so that resources are apportioned and attributed to the proper user(s).

Slide 16: 

Understanding Cloud Storage: One of the primary uses of cloud computing is for data storage. With cloud storage, data is stored on multiple third-party servers, rather than on the dedicated servers used in traditional networked data storage. When storing data, the user sees a virtual server—that is, it appears as if the data is stored in a particular place with a specific name. But that place doesn’t exist in reality. It’s just a pseudonym used to reference virtual space carved out of the cloud. In reality, the user’s data could be stored on any one or more of the computers used to create the cloud.

Slide 17: 

Understanding Cloud Services: Any web-based application or service offered via cloud computing is called a cloud service. Cloud services can include anything from calendar and contact applications to word processing and presentations. With a cloud service, the application itself is hosted in the cloud. An individual user runs the application over the Internet, typically within a web browser. The browser accesses the cloud service and an instance of the application is opened within the browser window. Once launched, the web-based application operates and behaves like a standard desktop application.

Slide 18: 

Benefits From Cloud Computing: Collaborators: The ability to share and edit documents in real time between multiple users is one of the primary benefits of web-based applications; it makes collaborating easy and even fun. Road Warriors: you can access a single version of your document from any location. Cost- Consious users: Another group of users who should gravitate to cloud computing are those who are cost conscious. With cloud computing you can save money on both your hardware and software.

Conclusion : 

Thus cloud computing provide a super-computing power .This cloud of computers extends beyond a single company or enterprise. The applications and data served by the cloud are available to broad group of users, cross-enterprise and cross-platform. Conclusion

Thank you : 

Thank you