You all have heard of clouds. But what are these cloud computing services we are using daily for accessing various applications like emails, office applications, online storage etc.? Well, the concept is similar. When cloud rains it drenches everyone, means it's a shared resource, although natural which is available to all. Now the same concept is replicated in cloud business model where shared resources are made available to everyone. You just need to access it. Let me simplify it for you.
