International Academy of Science , Engineering and Technology (IASET)
Cloud computing is a new way of delivering computing services ranging from data storage and processing to software, such as email handling. These services are now available right away, commitment-free and on-demand. Cloud computing is a approach of computing over the internet. The word cloud is an allegory for Internet. It is a new way for the delivery of IT services on the internet. The main attractions in Cloud computing are its usability and cost-effectiveness. The common characteristics most shared are scalability of vastly available and reliable collective computing resources, secure access to metered services from nearly anywhere, and displacement of data from inside to outside the organization.