User:NoorAttayee/sandbox

Cloud Computing by Noorullah Attayee
Cloud refers to on-demand services, computer networks, storage, applications or resources accessed via the internet and through another provider’s shared cloud computing infrastructure. The benefits of Cloud to end-users and businesses include increased capacity, scalability, functionality, and reduced maintenance and cost for computer infrastructure or in-house staff. Additionally, cloud-based solutions can enable companies to focus on revenue-driving initiatives rather than time-consuming, non-core business tasks. Cloud computer pricing models are categorized by servers in the cloud, sites/applications in the cloud, and storage in the cloud, and the majority of cloud providers tend to offer “pay-as-you-go” subscription based models which enable companies closely manage costs as well as scale up and down as needed.

IaaS:
Cloud-based services, pay-as-you-go for services such as storage, networking, and virtualization.

PaaS:
Platform as a service is hardware and software tools available over the internet.

SaaS:
is a software distribution model in which a third-party provider hosts applications and makes them available to customers over the Internet.