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Cloud computing (CC) promotes rapid deployment and convenient, ongoing access to computer servers for web hosting as well as a variety of other purposes. Once users try cloud hosting the following question becomes rhetorical: How flexible is cloud hosting? Cloud servers are widely touted as the newest concept in modern computing.

UK cloud hosting is essentially a cost-efficient method for users to quickly and cheaply get to use information technology (IT) resources. It makes these resources available on a leased or pay-as-you-use basis rather than outright purchase. Users therefore save the initial investment cost as well as the subsequent ongoing operating costs.

All Web-enabled devices can be used for CC. Clients may remotely work on text documents or spreadsheets. They can store and play MP3s or view picture and video files. They can even enjoy video games using CC. All these involve software and data that is stored centrally. Clients access CC in three different ways.

Users access CC at three separate layers, namely, infrastructure, platform and application software. All three levels provide great convenience. Each of these levels is briefly discussed below.

Firstly, on infrastructure, CC allows users to access incremental infrastructure (such as web hosting servers) as and when required. It also allows business users to increase permanent, base load server capacity as their business grows.

There are three layers or levels at which users can access IT resources via the cloud – infrastructure resources (such as web servers), platform, application software. Many users are attracted to the opportunity of accessing incremental infrastructure (web server) capacity via CC. The service allows us to scale-up almost instantly as demand on our servers increases. This service allows users to solve the thorny problem of catering effectively for daily peak loads.

Public CC provides individuals and businesses access to IT resources on an infinitely scalable basis, instantly and at significantly lower cost compared to conventional IT models. These three benefits are significant. CC scalability allows a firm to grow or shrink IT resources as required to match demand. This scalability can be achieved continuously. Both up-front investment cost and ongoing maintenance costs are avoided. With fewer in-house servers to maintain, a firm is able to lower IT headcount since fewer engineers are required.

CC makes IT resources available to users like a utility. Online businesses like ours no longer need to make require large investments in hardware or supply the human expertise and expense to operate it. We no longer need to struggle with the cost of over-investing now to provide IT capacity for risky future growth which may not eventuate. With CC, clients can draw-on IT resources in the same way that consumers draw electricity from the main grid. Using servers for one hour via the cloud costs no more, on a unit basis, than using one server for 100 hours. CC appeals to many users that in the past have operated a conventional client-server computer network. With CC, clients may establish access to their own private cloud, that is, dedicated infrastructure that is operated exclusively for their own exclusive usage. This is a service targeted to businesses.