The delivery of computing services – servers, storage, databases, networking, software, analytics and more – over the Internet (“the cloud”). Most cloud computing services fall into three broad categories: IaaS, PaaS and SaaS.
Cloud computing has been around since the '50s. In 1999, Salesforce.com became the first site to deliver applications and software over the Internet.
Cloud computing comes in three forms: public clouds, private clouds, and hybrids clouds.
Experts predict that 40 zettabytes of data will be held in the cloud by 2020.
90% of Microsoft’s R&D budget in 2011 was spent on cloud computing strategy and products.