Cloud computing is a huge infrastructure where communications happens between computers using the resources we have placed in the cloud.
Cloud functions in utility computing: where we are renting CPU utilization also called as grid servers, software as a service where we use Microsoft service, like workspace, then Platform as a service where you have Operating systems utilization, we also have infrastructure as a service where we use high end data storage servers.
The cloud can consist of servers running, applications, data stores etc. You can utilize cloud computing to access business applications from a browser, data storage files upload and download from a web browser, CPU utilization, etc.
Cloud Computing Examples
If you have to send an email from your office to your branch office, the email moves from your office exchange server and looks in for the email address and transfer to the exact location.
With clouding computing, there would be a email server (service)running which is a web based email with all the infrastructure and when a email is sent from office A to a person in office B, the email now moves to cloud and sent directly to office B. Here we miss the exchange servers we have used traditionally to send emails. Everything is handled by the cloud.
Companies may use Microsoft workspace, Zoho or Google docs for document sharing. In a traditional structure you didn’t have the best way to organize files when everyone needs to edit them. Now with could computing, you can set permission on a document and have just a single copy edited.
To explain in more detail: If A sends a document to B and C, B and C feel there should be few more things added to the document and change the document further and send back to A. So, now A has his own original document along with modified document from B and C. This is all the traditional computing is about.
But with cloud computing, we would place a Microsoft workspace server and the document sent from A would have just write permission for B and C. When B and C edit the documents, it’s viewable by A and now there is just the single copy on the server accessed by everyone.