Cloud Computing Services are changing nowadays how businesses use Information Technology. There are great variety among cloud computing services, all such services have certain basic features and benefits in common, and all can be categorized into a few basic cloud service types.
Features of Cloud Computing Services
Hosting and Maintained by the provider
The cloud hosting provider purchases, hosts and maintains the necessary hardware and software in their own facility. Service users avoid the capital expenditures and maintenance headaches that they would have if they developed the service themselves on-premises.
Self-service through a web interface
Service users can initiate specific service functions, and increase or decrease their service usage level, though a web interface with little or no interaction with the service provider.
Pay for use
Service users pay only for the amount of service that they use. This can result in substantial cost savings compared to the traditional approach of developing on-site IT Capabilities geared toward maximum usage scenarios, and then having that capacity be under-utilized much of the time.
Cloud computing services providers typically have the infrastructure to deliver their service at massive scale. For cloud service users, that means that the cloud can easily accommodate business growth or periodic spikes in service usage.
Software as a Service (SaaS)
Software as a service (SaaS) is a software distribution model in which a cloud provider hosts applications and makes them available to end users over the internet.
It is a way of delivering applications over the Internet—as a service. Instead of installing and maintaining software, you simply access it via the Internet, freeing yourself from complex software and hardware management.
SaaS applications are sometimes called Web-based software, on-demand software, or hosted software. Whatever the name, SaaS applications run on a SaaS provider’s servers. The provider manages access to the application, including security, availability, and performance.
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