Cloud computing is the practice of using a network hosted on the Internet or to store, manage and process data. This means you don’t have to own or maintain any hosting equipment. You can use cloud computing to do everything from hosting websites and streaming videos to delivering the software. Cloud computing can help businesses by providing the capability for massive information processing for the companies of all sizes. The aim of cloud computing is to allow users to take advantage of multiple technologies without insight knowledge of any of them, both saving IT costs and allowing users to access data faster.

There are three categories of cloud deployment:

• Public- Businesses and individuals create and access their cloud accounts through a browser. 
• Private- A private or enterprise cloud is used exclusively by sole business. 
• Hybrid- This cloud combines both private and public clouds. 

There are three main service models of cloud computing – Infrastructure as a Service (IaaS), Platform as a Service (PaaS) and Software as a Service (SaaS).

Advantages of Cloud Computing:

• Cloud computing works on the basis of pay as per the utility. You only pay for what you use.
• It’s operations are very quick and efficient.
• Cloud computing is easier to adopt and implement. 
• Cloud technology has helped the business to processes faster, more securely and reliably.
• The performance of cloud computing is optimal. 
• The process of sharing the information across the globe becomes easier with cloud computing.