Public cloud is a disruptive technology changing the face of enterprise IT. By providing infrastructure services (IaaS), applications service (SaaS) and overall platform services (PaaS), cloud service providers are changing IT procurement from capital investment to operational expenditure, and allowing traditional IT to be by-passed. As the Internet of Things grows and as Internet data streams become a larger proportion of enterprise data processing, the locus of IT will shift closer to the cloud, and reduce the friction for IT adoption. Wikibon expects public clouds to comprise about one third of total enterprise IT spend by 2026. Wikibon expects that this move will significantly impact on traditional IT hardware and software vendors.