Cloud computing in simple terms is the delivery of computing services such as analytics, networking, software, storage, databases, and intelligence—over the Internet (“the cloud”) to offer faster innovation, flexible resources, and economies of scale.
The key feature of Cloud-based systems are Fast response to business needs.
   Cloud applications can be tested, deployed and updated quickly, providing companies with fast time to market and agility, instant scalability, capacity can be adjusted as demand rises.

Cost Companies can avoid the heavy expense of buying software and hardware and setting up and running data centres and racks of servers, the humongous amount of electricity for power and cooling, and the IT experts for managing the infrastructure. It adds up fast.