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Wikipedia defines Cloud computing as “the delivery of computing as a service rather than a product, whereby shared resources, software, and information are provided to computers and other devices as a utility (like the electricity grid) over a network (typically the Internet)”. According to our text Information Systems: A Manager’s Guide to Harnessing Technology, cloud computing consisted of $36 billion dollar market back in 2008 equaling 13% of the global software sales. There are two forms of this that we have gone over including SaaS and Utility Computing.
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| http://computer.howstuffworks.com/cloud-computing/cloud-computing.htm |
YouTube carries a video that explains cloud computing and how and why it is faster and lower in cost without utilizing all your IT resources.
Although the theory of cloud computing seems easy enough to understand, the actual outline of it seems to evade even the most tech savvy in the business world. I think the reason behind this is because it can encompass so much and also be limited to the basics of systems at the same time.
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| http://www.infoworld.com/d/cloud-computing/what-cloud-computing-really-means-031 |
In InfoWorld’s article, What cloud computing really means, they state that “Cloud computing comes into focus only when you think about what IT always needs: a way to increase capacity or add capabilities on the fly without investing in new infrastructure, training new personnel, or licensing new software. Cloud computing encompasses any subscription-based or pay-per-use service that, in real time over the Internet, extends IT's existing capabilities.”
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| http://www.technologyreview.com/business/38805/?mod=chfeatured |
Technology Review offers an article called Can an Open Cloud Compete? In this article, they explain that “many companies have flocked to cloud computing. It removes the need for expensive up-front investments in information technology departments, since computer power and storage can simply be leased. However, most cloud services are proprietary, and the technology used to run them is kept secret. Once a company signs up for one cloud service, it can be difficult to move to another provider”.
In a cloud computing system, there's a significant workload shift. Local computers no longer have to do all the heavy lifting when it comes to running applications. The network of computers that make up the cloud handles them instead. Hardware and software demands on the user's side decrease. The only thing the user's computer needs to be able to run is the cloud computing system's interface software, which can be as simple as a Web browser, and the cloud's network takes care of the rest. They also offer a very good video on cloud computing.
www.youtube.com/watch?v=ae_DKNwK_ms
http://www.infoworld.com/d/cloud-computing/what-cloud-computing-really-means-031http://en.wikipedia.org/wiki/Cloud_computing
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