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Cloud Computing and Its Different Models
19 july 2017

Cloud Computing

A relatively advanced version of grid computing, cloud computing is the most on-demand technology, which when employed enables online businesses to utilize multiple computing resources. To oversimplify the term, it’s a new form of Internet-based computing used for on-demand access to shared computer processing resources and data to computers and other devices connected to a network or a pool of networks across globe. It brings together a range of shared, configurable computing resources (e.g., servers, networks, storage, applications and services) to perform a common function. The resources available for access can be easily released and quickly provisioned without much hassle and with minimal efforts using flexible cloud computing services.

Cloud computing could be a handy, Internet-driven solution for businesses across industries as it allows them to run and maintain the infrastructure efficiently and cost-effectively. It’s rooted on the principle of shared storage and processing of underlying computing hardware resources. In a typical cloud computing environment, multiple web servers are connected to each other on a complex and wide network to deliver the required computing functions. The underlying benefits of availing cloud hosting services are enormous. Selection of the right cloud hosting provider is vital when it comes to gaining maximum benefits of the services.

There are numerous cloud computing companies in India. It’s all a matter of selection to determine if the services you avail are cost-effective and fit your specific business needs. Most cloud hosting providers offer their services to clients in form of a hosting service model rather than traditional product model – shared or dedicated server hosting. Pricing is often based on the clients’ infrastructure usage rather than monthly or annual charges. Now, it’s up to you whether you want to increase or decrease add-on computing resources like storage, Bandwidth and RAM. So, choose the right model and get charged accordingly.

Cloud Hosting Service Models

Software as a Service (SaaS)

A software licensing and delivery model, SaaS is typically hosted on the cloud and is delivered to the clients online by a web browser. Software, in SaaS model, can be availed on any device that is connected to the Internet. Often referred to as "on-demand software", SaaS redefines the software market as it allows software licensing on a subscription basis. The applications are hosted remotely in Saas. The clients don’t need to pay more than the licensing cost per user. It helps minimize the cost of IT operations in organizations.

Platform as a Service (PaaS)

Also sometimes called application Platform as a Service, PaaS helps organizations develop, run and maintain applications without the need of building their own infrastructure, which may require huge investment. From hardware to software, a wide range of tools are made available to clients for application development. It is commonly referred to as the middle layer between Iaas and Saas. In PaaS hosting model, applications can be developed, tested and managed quickly, easily and cost-effectively. PaaS service providers host the entire infrastructure on their own servers helping organizations avail anything they might need for application development.

Infrastructure as a Service (IaaS)

Amongst all cloud hosting models, IaaS is the most popular one. It allows the organizations to access monitor and maintain their data center infrastructure remotely. Internet-led software is used for these operations. IaaS reduces cost of developing physical server hardware. Users can rent it from an external third party data center services provider to manage their data based on their varied business needs.

Deepak Kumar