This definition of cloud computing depicts how public cloud service providers operate. The primary benefit of cloud computing is agility which is the ability to enforce abstracted computer, storage, and network resources to workloads as required and employ pre-built services Cloud Computing Essay • Software-as-a-service (Saas): Saas is the model in which an application is hosted as a service to customers who • Platform-as-a-service (Paas): This kind of cloud computing provides development environment as a service. The • Community cloud: A community cloud is Cloud Computing. words 3 page (s) The project will focus on an application that strives to provide cloud services in a healthcare system. This application will access important data such as EPCR (Electronic Patient Care record) that are deemed important to healthcare processes
Cloud Computing Essay - Words | Help Me
Home — Essay Samples — Information Science and Technology — Cloud Computing — What is Cloud Computing. Attempts are made in this paper to define Cloud Computing first, then identify the different types of it. We move to discuss the basic requirement of Cloud in the next section and finally the advantages and disadvantages of Cloud computing are analyzed. It is clarified that Cloud Computing is a virtualized compute power and storage delivered via platform-agnostic infrastructures of abstracted hardware and software accessed over the Internet. These shared, on-demand IT resources, are created and disposed of efficiently, are dynamically scalable through a variety of programmatic interfaces and are billed variably based on measurable usage. A cloud can be private or public. A public cloud sells services to anyone on the Internet.
Currently, Amazon WebServices is the largest public cloud provider, cloud computing essay. A private cloud is a proprietary network or a data center that supplies hosted services to a limited number of people. Clod Computing provides services as follows: i-Infrastructure as a services IaaS ii-Platform as a services PaaS cloud computing essay Software as a Services SaaS. The layers and infrastructure of cloud computing as well as its advantages and dis advantages are discussed in the following sections. These services are broadly divided into three categories: Infrastructure-as-a-Service IaaS ,Platform-as-a-Service PaaS and Software-as-a-Service SaaS. The name cloud computing was inspired by the cloud symbol thats often used to represent the Internet in flowcharts and diagrams.
When a service provider uses public cloud resources to create their private cloud, the result cloud computing essay called a virtual private cloud computing essay. Private or public, the goal of cloud computing is to provide easy, scalable access to computing resources and IT services. to start, stop, access and configure their virtual servers and storage. In the enterprise, cloud computing allows a company to pay for only as much capacity as is needed, and bring more online as soon as required. Because this pay-for-what-you-use model resembles the way electricity, fuel and water are consumed, its sometimes referred to as utility computing. Platform-as-a-service in the cloud is defined as a set of software and product development tools hosted on cloud computing essay providers infrastructure.
Developers create applications on the providers platform over the Internet. Paas providers may use APIs, website portals or cloud computing essay software installed on the customers computer. com, cloud computing essay, an outgrowth of Salesforce. com and GoogleApps are examples of PaaS. Developers need to know that currently, there are not standards for interoperability or data portability in the cloud. Some providers will not allow software created by their customers to be moved off the providers platform. In the software-as-a-service cloud model, the vendor supplies the hardware infrastructure, the software product and interacts cloud computing essay the user through a front-end portal. SaaS is a very broad market.
Services can be anything from Web-based email to inventory control and database processing. Because the service provider hosts both the application and the data, the end user is free to use the service from anywhere. Cloud computing is a general term for anything that involves delivering hosted services over the Internet. The customer has no visibility over the location of the cloud computing infrastructure. The computing infrastructure is shared between organizations, cloud computing essay. Private Cloud: Computing architecture is dedicated to the customer and is not shared with other organizations. They are expensive and are considered more secure than Public Clouds.
Private clouds may be externally hosted ones as well as in premise hosted Hybrid Cloud: Organizations host some critical, cloud computing essay, secure cloud computing essay in private clouds. The not so critical applications are hosted in the public cloud. The combination is known as Hybrid Cloud, cloud computing essay. Cloud bursting is the term used to define a system where the organization uses its own infrastructure for normal usage, but cloud is used for peak loads. Community Cloud: The cloud infrastructure is shared between the organizations of the same community.
For example, all the government agencies in a city can share the same cloud but not the non government agencies, cloud computing essay. Examples include some computers example: Chromebookphones example: Google Nexus series and other devices, operating systems example: GoogleChrome OSand browsers. It facilitates deployment of applications without the cost and complexity of buying and managing the underlying hardware and software layers. Cloud computing is becoming a major change in our industry, and one of the most important parts of this change is the shift of cloud platforms. Platforms let developers write certain applications that can run in the cloud, or even use services provided by the cloud. There are different names being used for platforms which can include the on-demand platform, or Cloud 9, cloud computing essay.
Its your choice on what you would like to call the platform, cloud computing essay, but they all have great potential in developing. When development teams create applications for the cloud, they must build its own cloud platform. Rather than purchasing servers, software, data-center space or network equipment, clients instead buy those resources as a fully outsourced service. Suppliers typically bill such services on a utility computing basis; the amount of resources consumed and therefore the cost will typically reflect the level of activity. Advantages and Disadvantages of Cloud Computing in a General: Lower cloud computing essay costs: You do not need a high-powered and high-priced computer to run cloud computings web-based applications. Since applications run in the cloud, not on the desktop PC, your desktop PC does not need the processing power or hard disk space demanded by traditional desktop software.
Cloud computing essay performance: With few large programs hogging your computers memory, you will see better performance from your PC. Computers in a cloud computing system boot and run faster because they have fewer programs and processes loaded into memory… Reduced software costs: Cloud computing essay of purchasing expensive software applications, you can get most of what cloud computing essay need for free! is right — most cloud computing applications today, cloud computing essay, such as the Google Docs suite, are totally free, cloud computing essay. When the application is web-based, updates happen automatically -available the next time you log into the cloud.
When you access a web-based application, you get the latest version -without needing to pay for or download an upgrade. Improved document format compatibility. You do not have to worry about the documents you create on your machine being compatible with other users applications or operating systems. Where Word documents cannot be opened on a computer running Wordall documents can be read! There are potentially no format incompatibilities when everyone is sharing documents and applications in cloud computing essay cloud Unlimited storage capacity: Cloud computing offers virtually limitless storage.
Your computers current Gbyte hard drive is small compared to the hundreds of Bytes available in the cloud, cloud computing essay. Whatever you need to store, you can. Increased data reliability: Unlike desktop computing, in which if a hard disk crashes and destroy all your valuable data, a computer crashing in the cloud should not affect the storage of your data. That also means that if your personal computer crashes, all your data is still out there in the cloud, still accessible. In a world where few individual desktop PC users back up their data on a regular basis, cloud computing is a cloud computing essay computing platform!
Universal document access: That is not a problem with cloud computing, because you do not take your documents with you. Instead, cloud computing essay, they stay in the cloud, and you can access them whenever you have a computer and an Internet connection. All your documents are instantly available from wherever you are. Latest version availability: Another document-related advantage of cloud computing is that when you edit a document at home, that edited version is what you see when you access the document at work. The cloud always hosts the latest version of your documents; as long as you are connected, you are not in danger of having an outdated version Easier group collaboration: Sharing documents leads directly to better collaboration.
Many users do this as it is an important advantages of cloud computing -multiple users can collaborate easily on documents and projects. Because the documents are hosted in the cloud, not on individual computers, cloud computing essay, all you need is an Internet connection, and you are collaborating, cloud computing essay. Device independence: You are no longer tethered to a single computer or network. Changes to computers, cloud computing essay, applications and documents follow you through the cloud Move to a portable device, and your applications and documents are still available.
Disadvantages of Cloud Computing Requires a constant Internet connection Cloud computing is impossible if you cannot connect to the Internet. Since you use the Internet to connect to both your applications and documents, if you do no have an Internet connection you cloud computing essay access anything, even your own documents. A dead Internet connection cloud computing essay no work and in areas where Internet connections are few or inherently unreliable, this could be a deal-breaker. When you are offline, cloud computing simply does not work. Can be slow: Even with a fast connection, web-based-applications can sometimes be slower than accessing a similar software program on your desktop PC.
Everything about the program, from the interface to the cloud computing essay document, has to be sent back and forth from your computer to cloud computing essay computers in the cloud. If the cloud servers happen to be backed up at that moment, or if the Internet is having a slow day, cloud computing essay, you would not get the instantaneous access you might expect from desktop applications. Features might be limited: This situation is bound to change, but today many web-based applications simply are not as full-featured as their desktop-based applications.
For cloud computing essay, you can do a lot more with Microsoft PowerPoint than with Google Presentations web-based offering. The basics are similar, but the cloud application lacks many of PowerPoints advanced features. If you are a power user, you might not want to leap into cloud computing just yet. General Concerns: Each cloud computing essay systems uses different protocols and different APIs… so it may not be possible to run applications between cloud based systems. Amazon has created its own DB system not SQL92and workflow system many popular workflow systems out there — so your normal applications will have to be adapted to execute on these platforms.
The Future Many of the activities loosely grouped together under cloud computing have already been happening and centralized computing activity is not a new phenomena: Grid Computing was the last research-led centralized approach. However there are concerns that the mainstream adoption of cloud computing could cause many problems for users, cloud computing essay. Whether these worries are grounded or not has yet to be seen. Many new open source systems appearing that you can install and run on your local cluster — should be able to run a variety of applications on these systems. This lets you focus on deploying more apps, new projects, and innovation. Cloud computing is a simple idea, but it can have a huge impact on your business.
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Cloud Computing - Why we need Cloud computing
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Aug 02, · Cloud computing, often referred to simply as “the cloud”, is the use of the Internet to deliver on-demand computing resources on a pay-for-use basis. It involves the use of the internet to store and access programs and data instead of doing the same on a personal computer’s hard drive Cloud Computing. words 3 page (s) The project will focus on an application that strives to provide cloud services in a healthcare system. This application will access important data such as EPCR (Electronic Patient Care record) that are deemed important to healthcare processes Jan 23, · Cloud Computing is a new technological computing model that is affordable, accessible, and free of maintenance. Cloud computing allows small organizations to access large scale computing technologies as used by firms such as Google. Cloud computing is especially advantageous because of the mass storage and memory available, its reliability and affordability
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