Cloud computing allows consumers and businesses to use applications without installation and access their personal files at any computer with internet access. This technology allows for much more efficient computing by centralizing data storage, processing and bandwidth.
Cloud Computing has many benefits including:
- Reduce TCO : renting software ‘in the cloud’ on a ‘pay-as-you-go’ basis eases cash flow.
- Lower maintenance costs
- Mass storage: renting storage is cheaper than buying extra disk space for your servers.
- Reduced risk: security is maintained by your hosting provider.
- Access anywhere: get your documents over the web from home or just about anywhere else.
Public cloud means hosting outside of your organization. When you use public cloud-based services, your IT infrastructure resides off your property (off-premises), and is maintained by a third party (hosted), instead of residing on a server at your home or business (on-premises) that you maintain
Private clouds exist to take advantage of many of cloud’s efficiencies, while providing more control of resources and steering clear of multi-tenancy.
A hybrid cloud uses a private cloud foundation combined with the strategic use of public cloud services
IaaS Infrastructure as a Service
Infrastructure as a service provides companies with computing resources including servers, networking, storage, and data center space on a pay-per-use basis.
PaaS Platform As a Service.
Platform as a service provides a cloud-based environment with everything required to support the complete lifecycle of building and delivering web-based (cloud) applications—without the cost and complexity of buying and managing the underlying hardware, software, provisioning and hosting.
SaaS Software As a Service.
Cloud-based applications—or software as a service (SaaS)—run on distant computers “in the cloud” that are owned and operated by others and that connect to users’ computers via the Internet and, usually, a web browser.