Explain major service model of cloud computing.

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 Cloud Computing

  • Cloud Computing is defined as storing and accessing data and computing services over the internet. It doesn’t store any data on your personal computer. It is the on-demand availability of computer services like servers, data storage, networking, databases, etc. The main purpose of cloud computing is to give access to data centers to many users. Users can also access data from a remote server.
  • Cloud computing is the on-demand delivery of computing power, database storage, applications, and other IT resources through a cloud services platform via the internet with pay-as-you-go pricing.
    aws.amazon.com
  • Examples of Cloud Computing Services: AWS, Azure, Google Cloud

MAJOR SERVICES MODELS OF CLOUD COMPUTING

SAAS (SOFTWARE AS A SERVICE)

SaaS allows clients to access software programs from anywhere using a browser. Software as a service (SaaS) is sometimes known as "on-demand software." Because service providers store programs and their related data at their location, clients may access SaaS apps from anywhere over the web. The fundamental advantage of SaaS is that it has a reduced cost of usage, as subscription costs are substantially lower than what is generally required under the traditional software delivery model. Subscribing to the SaaS style of software delivery eliminates licensing fees, installation charges, maintenance fees, and support expenses that are commonly connected with the conventional style of software delivery. Google Apps and internet-based email applications such as Gmail, Outlook, and others are examples of SaaS.


PAAS (PLATFORM AS A SERVICE)

Clients can create and distribute customized apps in a hosted environment through the web using PaaS (Platform as a Service). It represents a novel approach to software development that is fast gaining traction. Salesforce.com is an example of PaaS. The fundamental benefit of PaaS, like SaaS, is a cheaper cost of usage, as subscriber costs are substantially lower than what is generally required when deploying traditional software development, testing, and deployment technologies. PaaS companies manage platform maintenance and system updates, making business software development more efficient and cost-effective.


IAAS (INFRASTRUCTURE AS A SERVICE)

IaaS (Infrastructure as a Service) enables clients to access IT gear and resources on a pay-as-you-go basis from a remote location. Haas is another name for it (hardware as a service). IBM, Google, and Amazon.com are among the major IaaS providers. Virtualization is used in IaaS to create and manage infrastructure resources in the "cloud." Small startup businesses benefit greatly from IaaS since it enables them to progressively build their IT infrastructure without having to make huge financial expenditures on hardware and peripheral systems.





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