With cloud computing, the client will not incur additional costs for scaling up like it normally happens when in conventional computing methods. When a company wants to enhance the capacity of the system, they simply ask the provider to allocate more space for which they will pay accordingly. The computing services are made available via a web browser rather than installing them in your computer. Google, for instance, has introduced a lot of resources that are accessible through their browser. For instance, rather than install the Microsoft Excel in a computer, one only needs to connect to the internet and find a similar spreadsheet on the Google browser. You can access this service, work on the spreadsheet and even save it for future reference. For business point of view you should have a back up other wise it would be a disaster. Small business might have problem in maintain the back up.