An Introduction to Cloud Computing | Sedulity Groups

Cloud computing means using the computing resources both hardware and software, that are delivered as a service over Internet. In other words, computer and software services necessary for computing works provided via the internet is called cloud computing.
When we think about the need of IT, cloud computing comes into focus like the requirement of a way to increase or add capabilities on the fly without investing in new infrastructure, training new personnel, licensing new software etc. Cloud computing encompasses any subscription-based or pay-per-use service that, in real time over the Internet, extends IT’s existing capabilities.
Cloud Computing is a technology that uses the internet and central remote servers to maintain data and applications. 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.
It is named as cloud computing because all the services are provided via the internet and cloud symbol is used as an abstraction for the complex infrastructure it contains in system diagrams. Cloud computing entrusts remote services with a user's data, software and computation.
Infrastructure as a service

In Infrastructure as a service, the service provider provides the necessary servers, hardware and networking components to an organization for a fee. The organization in turn installs the necessary programs in the service provider's server and uses them. The service provider is responsible for the maintenance of the servers.

Platform as a service

In Platform as a service, the service provider provides the necessary softwares and the tools for creating softwares which are installed in their server to an organisation for a specified amount. The organization creates the necessary softwares on his platform and uses them. Its like renting in a house which has all the necessary things.

Software as a service

In Software as a service, the applications hosted in the service provider’s server are made available to customers via the internet. The provider also interacts with the user through a front end panel. The provider provides the necessary support to the customer. The services range from e-mail to data processing.

Advantages of cloud computing

The main advantage of cloud computing is that the customer can get the service at any time.

Now days, the service providers provide the service on a monthly basis. The provider and the customer can cancel the agreement at any time.