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This delivers great incentive to public cloud computing service providers to prioritize building and maintaining strong management of secure services. [38] Some small businesses that do not have expertise in IT security could find that it is more secure for them to use a public cloud. There is the risk that end users do not understand the ...
Vendors who are proponents of the concept of ITaaS as an operating model include EMC, [4] Citrix, [5] and VMware. [6] ITaaS is not a technology shift - such as a move to increase the use of virtualization. Rather, it is an operational and organizational shift to running IT like a business and optimizing IT production for business consumption.
Over the next decade, timesharing became the main business model for computing, and cluster computing enabled multiple computers to work together. [9] Cloud computing emerged in the late 1990s with companies like Amazon (1994), Salesforce (1999), and Concur (1993) offering Internet -based applications on a pay-per-use basis.
The US National Institute of Standards and Technology (NIST) defines infrastructure as a service as: [3]. The capability provided to the consumer is provision processing, storage, networks, as well as other fundamental computing resources where the consumer is able to deploy & run arbitrary software, which can include operating systems and applications.
Cloud storage is based on highly virtualized infrastructure and is like broader cloud computing in terms of interfaces, near-instant elasticity and scalability, multi-tenancy, and metered resources. Cloud storage services can be used from an off-premises service or deployed on-premises (ViON Capacity Services). [5]
Platform as a service (PaaS) or application platform as a service (aPaaS) or platform-based service is a cloud computing service model where users provision, instantiate, run and manage a modular bundle of a computing platform and applications, without the complexity of building and maintaining the infrastructure associated with developing and launching application(s), and to allow developers ...