Computer virtualization has become ubiquitous in the modern IT landscape. One of the more interesting evolutionary offspring of virtualization is Cloud Computing. Today’s Information Technology managers have a wide variety of software and services to choose from. Knowing when to choose the cloud or an in-house solution isn’t always clear. This paper seeks to determine where cloud computing is superior and when it should be avoided.
What do Cloud Providers Offer?
There is a lot of buzz about “the Cloud” and what it can and cannot do for IT departments. A wide range of products and services are lumped into the phrase “Cloud computing.” While the strict definition of a cloud speaks mainly to a collection of easily deployed virtual servers, it also encompasses vendors of outsourced exchange servers, preconfigured CRM applications, web-enabled word processing applications, and online backup services (Gohring, 2013).
The most commonly used type of cloud technology is Software as a Service (SaaS). Software as a Service vendors provide a commonly used tool such as CRM, backup, e-mail, or web services in a hosted datacenter. SaaS vendors leverage the reliability, efficiency, and scalability of virtualization in a high availability environment to provide a common software package at a low cost or for free. Google’s Gmail service is an example of a cloud based SaaS e-mail solution that is provided at no cost. Using free services does come at the cost of privacy and guaranteed reliability. IT managers should never assume company data is private when using free software services.
Another common cloud technology offering is Infrastructure as a Service (IaaS). IaaS vendors, such as Amazon’s EC2 service, provide virtual servers with which s...
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...ween IT priorities and cost is the goal of IT managers. Cloud services have radically changed the IT landscape in the last few years and the modern IT manager cannot be effective without understanding cloud technologies.
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As its core essences cloud computing is nothing but a specialized form of grid computing and distributing computing’s which various in terms of infrastructure , deployment, service and Geographic’s dispersion (Veeramachanenin, Sepetember 2015) the cloud enhance scalability, collaboration, availability , ability to adapt to fluctuation according to demand accelerate development work and provide optional for cost reduction and through efficient and optimized computing. (BH kawljeet, June 2015) cloud computing (CC) recently become as a new paradigm for the delivery and hosting of services our the internet. There are mainly three service delivery model Software as Service (SaaS) required software, operating system and network is provided or we can say in SaaS the customer can access the hosted software instead of installing it in local computer and the user can access these software through local computer internet browser (e.g web enabled E-mail ) the user only pay and the cloud service provider is responsible for management or control of mobile cloud infrastructure some of the company which provide such service are Google, Microsoft , Salesforce ,Facebook, etc…..Infrastructure as Service(IaaS)the cloud provider only provide some hardware resources such as network and virtualization is
Virtualization is a technology that creates an abstract version of a complete operating environment including a processor, memory, storage, network links, and a display entirely in software. Because the resulting runtime environment is completely software based, the software produces what’s called a virtual computer or a virtual machine (M.O., 2012). To simplify, virtualization is the process of running multiple virtual machines on a single physical machine. The virtual machines share the resources of one physical computer, and each virtual machine is its own environment.
Riebe, R. Randal. "Get On My Cloud." Systems Contracter News Sept. 2012: 90. ABI/INFORM Complete. Web. 1 May 2014. .
Wise man say, if you cannot change a man, change the environment around him. Sometimes we cannot change a person to suit our environment that we want but changing the environment around him will possibly lead him to change himself in accordance to the environment. Virtual Environment is simply a program to simulate an environment as if it is real to the user. In the environment of ASD, it not easy to change an autistic child, however we can simulate the environment to accommodate their way of living and make it easier for them to cope with the real life. For example, a virtual café is created for an autistic child. In the scenario, they need to learn how to make an order for a drink that they like, how to pay to the
Iansiti, M., & Herman, K. (2011). CA Technologies: Bringing the Cloud to Earth. Case Study, 24.
One of the most crucial reasons one enterprise choses cloud computing is costing. Some research claimed that the cloud computing is cost-effective because it is charged on pay-as-you-go basis (Brumec and Vrcek, 2013). That means a user will pay the amount which are equal to the user’s usage. Vanmechelen et al. (2013) believes such a model will provide flexibility that ensures the user to avoid investing to excess. However, this statement fails to explain some phenomenon in reality. Set MemSQL, which is a San Francisco outfit, as an instance. When MemSQL first started up, it was based on cloud computing Amazon.com, just like what most tech enterprises in Silicon Valley did. But it gave up using Amazon cloud only two years after its foundation and returned most of its operation back to traditional computers. Eric Frenkiel, the CEO of MemSQL, announced the reason why it off the cloud was the bills from Amazon was getting bigger and bigger. “I’m not a big believer in the public cloud. It’s just not effective in the long run”, he said (Metz, 2013). The Frenkiel’s word is only able to present his own opinion. Based on what MemSQL has experienced, ...
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