History of Cloud Computing
Cloud computing is an Internet-based service that has evolved after going through a number of phases, for example, grid and utility computing, SaaS, etc.
In 1999, Salesforce.com came into the market. This was a pioneer of cloud computing. After that, Amazon Web Services (AWS) was launched in 2002, which provided customized cloud-based services including storage, computation, etc to cloud users. Another great invention in cloud computing was in 2009, as Web 2.0 and Google services through Google Apps.