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Cloud Computing : what is it and its overview?


Cloud Computing :
Cloud Computing refers to accessing the applications over the internet.  Now an important question arises, "What is Cloud ? " The answer to this would be - cloud is nothing but just a group of computers connected together through a number of cables or connected wireless.

In cloud computing, the applications are hosted remotely and then the applications are accessed by the users over the internet. You do not need to download any application on your computer and install it. You can just use the services provided through a browser.

Generally, the services of the hardware and the software that you are using rests on your desktop or within your company's network. But in cloud computing, it is provided to you as a service. Knowingly or unknowingly, we have been using the service of cloud for a long time and are still using.

Examples of Cloud Computing :

The blog that you are reading now, is stored in some of the servers of google and no body knows where exactly it is stored. But you are still able to read this blog.

Another best example can be given to you of a web based mail service that you use to send and receive email. You do not store your email on your computer, it is stored on google servers. You open Chrome, Internet Explorer, Firefox or any other browser to access the mail service and be able to send and receive email.

We can add online documents as well here. You might have heard of Google Docs, which provides you the services, same as are provided by Ms Office or any other office application software. You can visit and login to Google Docs and then use the services of document creation, spreadsheet, etc with out downloading anything on your computer.

All of these is the gift of cloud.

We can describe Cloud Computing on the below models :

1- Deployment Model
2- Service Model

I will go ahead and write another article on these service models to discuss with you about this.

In cloud computing, you achieve platform independence, as you need not install any software on your computer / any other device, to access applicatoins. You access the applications through a browser [Internet Explorer, Chrome , Mozilla Firefox] and so on.



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