Defining the Cloud

Cloud is a computing service that provides servers, storage, network, applications and services through a global network of managed data centers. These services are used to build, deploy, integrate, and extend applications in the cloud.
Cloud services include the delivery of software, infrastructure, and storage over the internet. Most of the cloud computing has following features:

• It's virtual
• It can be secure
• It's flexible and scalable
• It can be affordable
• It can be secure and affordable