Having founded my own cloud company back in 2005, I became familiar with all the trials and tribulations of the SaaS, PaaS, and IaaS businesses long before the terms were coined. We delivered a video distribution and sharing service for consumers, a video PaaS for businesses, and built our own scalable and elastic video IaaS platform in multiple datacenters (since Amazon Web Service didn’t yet exist).
The phrase “cloud computing” originated from the cloud symbol that is usually used by flow charts and diagrams to symbolize the Internet. The principle behind the “cloud” is that any computer connected to the Internet is connected to the same pool of computing power, applications, and data. Users can store and access personal files such as music, pictures, videos, and bookmarks or play games or use productivity applications on a remote platform. Almost all users of the Internet may be using a form of cloud computing though few realize it.
I believe Cloud Computing is disrupting enterprise and consumer software markets as we know it. Currently we’re seeing more and more deployments of Software As A Service (SaaS) for business users and consumers; Platform As A Service (PaaS) for application developers; and Infrastructure As A Service (IaaS) for IT organizations.