Cloud computing is widely popular in today’s emerging computing world, on the basis of its prime functionality to provide disruptive hosted services over the Internet. Cloud Computing meets the specific needs of the individuals and enterprises by providing them tailor-made solutions. The user can easily access any amount of information to the specific core areas of his demands at any given time. Also, the hosted sites under cloud computing are more professionally made available to their end-users, as this type of computing essentially harps on end-user demands. In other words, cloud computing recognizes what its end-users want and strives to provide just that. For this, all the end-user requires is a personal computer with an internet access.

Types of Cloud Computing

Cloud computing can be provided either through a public cloud or a private cloud. If a public cloud resource is used by the cloud computing service provider to generate a private cloud to the end-user, the result is termed as a virtual private cloud.

The public cloud computing can be segregated into three parts, namely Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS). The users of “Software as a Service” rent the software through its purchase for using the same through an Internet browser. This type of public cloud computing caters to variety of fields such as human resource management, customer relationship management, Enterprise Resource Planning, and accounting. The users of “Platform as a Service” type of cloud computing are rendered several features that apply to testing, designing, hosting, deployment, and running of applications. The providers of “Platform as a Service” type of cloud computing may use gateway software, or website portals or get any other hardware facility installed on their end-user’s computer. GoogleApps, and Force.com are some examples of “Platform as a Service” type of cloud computing. In other words, this type of cloud computing provides computing platforms to its end users. It acts as a link between the “Software as a Service” and the “Infrastructure as a Service” types of cloud computing by delivering of various hardware facilities. The prime function of “Infrastructure as a Service” or “Interface as a Service” type of cloud computing is to deliver a virtualized platform, which leads to creation of a “hypervisor” or a “virtual machine monitor”.

In catering to the various sectors or community needs, cloud computing uses specific interfaces, platforms or even use of remote applications to fulfill the needs of its respective end-users.

Vendor Charges for Cloud Computing

The cost of cloud computing services differs from every vendor, depending upon the end-user needs as well as the type of cloud computing required by them. With regard to the “Software as a Service” vendors, the charge varies from every software application hosted on the Internet, on a “pay-as-you-go” basis. As for the “Infrastructure as a Service” vendors, the charge varies in accordance to the usage made by the end-users. For example, a mini Linux server may cost 10 cents an hour, in comparison to the Windows server that costs around $1.20 per hour. Storage cloud prices also vary according to its service providers. Nirvanix, a cloud storage provider, has its prices from around 20 cents per gigabyte of storage each month, wherein uploads as well as downloads made by its users would be charged additionally.

What next?

With so much clutter in the informative world of internet, it pays to make use of cloud computing in order to satisfy one’s specified set of requirements rather than waste time on differentiating unwanted piece of information from the rather significant ones. The scope of cloud computing is envisioned to expand in health care The health care providers are constantly on the lookout for automating their processes to facilitate higher gains at the least cost; this criterion makes cloud computing the most suitable platform for the same. A number of hospitals can share the infrastructure with several systems that are interlinked. This pooling of infrastructure can considerably reduce the cost while increasing its utilization. The resources are made available as and when required. Thus, the real-time information of the patient is made available to the doctors, nurses and any other personnel from the hospital that requires this information. In this context, cloud computing can be said to harp on exclusivity, for satisfying its end-users.