Cloud Computing Introduction

What is cloud computing?

Cloud computing is the delivery of on-demand computing services, like applications, storage and processing power over the internet. We can pay and buy services for which we want and when we want. For example, If you use an online service to send email, edit documents, watch movies or TV, listen to music, play games or store pictures and other files, it is likely that cloud computing is making it all possible behind the scenes.

One of the most benefits of using cloud computing services is that firms can avoid the upfront cost and complexity of owning and maintaining their own IT infrastructure.

There are three types of Cloud Computing models:-

  1. Infrastructure-as-a-Service (IaaS).
  2. Platform-as-a-Service (PaaS).
  3. Software-as-a-Service (SaaS).
  1. What is Infrastructure-as-a-Service (IaaS)?

Platform-as-a-service (PaaS) refers to cloud computing services that supply an on-demand environment for developing, testing, delivering and managing software applications. As clients we can use IT hardware and resources by remotely, and we can pay for hardware rent as per our requirement.

  1. What is Platform-as-a-Service?

Platform-as-a-Service (PaaS) is the next layer up as well as the underlying storage, networking, and virtual servers this will also include the tools and software that developers need to build applications on top of that could include middleware, database management, operating systems, and development tools. The principal benefit of PaaS is simplicity and convenience for users. The PaaS provider supplies much of the infrastructure and other IT services, which users can access anywhere via a web browser.

  1. What is Software-as-a-Service?

Software-as-a-Service (SaaS) is a method of software delivery that allows data to be access from any device with the help of internet connection and web browser. It is easy to implement, easy to update and debug, and can be less expensive since users pay for SaaS as they go instead of purchasing multiple software licenses for multiple computers.

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