what is cloud computing

Until the time I’m writing this post, the industry definition of Cloud Computing that widely accepted does not exist. You will find few definitions for this buzz term; vary from short to long description. The following are definitions I found

What is Cloud Computing ?

1. Cloud computing is a type of computing which have to serve to the computing demands as follow :

• Dynamism which enables you to fulfill the demands of IT easier and faster.
• Abstraction which allows you to focus on your core competency & should not worry about security, OS, software platform, updates and patches etc. Leave these chores to your provider.
• Resource Sharing provides the flexibility to share applications as well as other network resources (hardware etc). This will lead to need based flexible architecture where the resources will expand or contract with little configuration changes.

2. Cloud computing is the 5th Generation Computing after Mainframe, Personal Computer, Client-Server Computing, and the web.

3.  In its broadest application, the definition of cloud computing refers to the scalable IT resources delivery over the Internet, as contrast to hosting and operating all those resources locally, like on network of an university or college. Those resources range from service and applications, and also the infrastructure on which they use.

5. Cloud computing is hardware hosting within an external data center (sometimes named infrastructure as a service or IaaS), application hosting (often named software or application as a service), platform services (often named middleware as a service) and utility computing (which bundles computing resources to allow them to be used as a tool in an always-on, metered, and elastically scalable way.

6. Fundamentally, cloud is about developing and performing dynamic shared computing circumstances that can service numerous users and applications on this common infrastructure which can be accessed by self-serve technologies.

7.  Cloud computing is the next stage in evolution of the Internet. The cloud in cloud computing provides the means through which everything — from computing power to computing infrastructure, applications, business processes to personal collaboration — can be delivered to you as a service wherever and whenever you need. The cloud itself is a set of hardware, networks, storage, services, and interfaces that enable the delivery of computing as a service. Cloud services include the delivery of software, infrastructure, and storage over the Internet (either as separate components or a complete platform) based on user demand.