What is Cloud Computing?

Cloud computing is computing that involves a large number of computers connected via a communication network such as the Internet. It relies on allocation computing resources as opposed to having local servers or personal devices to take care of applications.

In Cloud computing, the phrase cloud is useful for “the Internet,” so Cloud computing means “a kind of Internet-based computing,” where different services — such as servers, storage, and applications — are brought to an organization's computers and devices through the Internet.

We truly need not install software on our local PC and this is the way the Cloud computing overcomes platform dependency issues. Hence, Cloud Computing is making our business application mobile and collaborative.

Examples of Cloud Computing

Web-based email is the simplest exemplary instance of Cloud computing.  Web-based email services such as Gmail, Yahoo, Hotmail came along and carried email off to the cloud. We know that emails may be stored and processed via a server in a certain remote area of the world, easily accessible from the Web browser.

Another example is a search engine when we type any query on like Google, our system does nothing in a searching query but a search is done by Google's a huge selection of tens of thousands of clustered PCs, which seek out your results and send them promptly back to you.

Advantages

·         It is manageable.

·         You can access the application form as an application on the internet.

·         It is on demand based.

·         Lower upfront cost and infrastructure cost.

·         Easy to develop the application.

·         It gives load balancing.

·         It is reliable, flexible and highly efficient.

·         Online development and deployment tools are available.

Disadvantages

·         Ongoing operating cost may be high.

·         Dependency on a service provider, difficult to modify in one provider to another.

·         Security and privacy issue because of the alternative party involved.

·         The chance of the failure of the isolation the mechanism that separates storage, memory, routing between the different tenants.

·         Third-party dependency.