AWS (AMAZON WEB SERVICES)- CLOUD COMPUTING

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What is Cloud Computing and How Does It Work?

Cloud computing is the on-demand, pay-as-you-go distribution of IT services through the Internet. Instead of purchasing, operating, and maintaining physical data centers and servers, you may rent computing power, storage, and databases from a cloud provider like Amazon Web Services on an as-needed basis (AWS).

Who is a Cloud Computing User?

Data backup, disaster recovery, email, virtual desktops, software development and testing, big data analytics, and customer-facing web apps are just a few of the use cases that organisations of all types, sizes, and industries are adopting the cloud for.

Healthcare organisations, for example, are utilising the cloud to produce more tailored therapies for patients. The cloud is being used by financial services organisations to support real-time fraud detection and prevention. The cloud is also being used by video game developers to provide online games to millions of players all over the world.

Benefits of Cloud Computing-

Agility

The cloud provides you quick access to a wide range of technologies, allowing you to develop more quickly and construct almost anything you can dream. You may easily spin up resources as needed, including computation, storage, and databases, as well as Internet of Things, machine learning, data lakes and analytics, and much more.

Technology services may be deployed in minutes, allowing you to get from concept to implementation several orders of magnitude quicker than before. This allows you the flexibility to try new things, explore new ideas, and revolutionise your business.

Elasticity

You don't have to over-provision resources up front with cloud computing to accommodate future peak levels of company activity. Instead, you allocate the exact quantity of resources that you require. As your company needs change, you can scale these resources up or down to rapidly expand and reduce capacity.

Cost-cutting

The cloud enables you to swap fixed costs (such as data centres and physical servers) for variable costs, allowing you to pay for IT just as you need it. Furthermore, due of economies of scale, the variable expenditures are far lower than what you would spend if you did it yourself.

In only a few minutes, you can deploy globally.

You may quickly grow to new geographic locations and deploy internationally using the cloud. AWS, for example, has infrastructure all over the world, allowing you to deploy your app in different physical locations in a matter of seconds. Bringing apps closer to end consumers lowers latency and enhances the user experience.

What Are The Types?

Cloud computing has several different types.

Infrastructure as a Service, Platform as a Service, and Software as a Service are the three primary forms of cloud computing. Each form of cloud computing offers varying degrees of control, flexibility, and administration, allowing you to choose the best combination of services for your needs.

Developers and IT teams can focus on what matters most while avoiding undifferentiated tasks like procurement, maintenance, and capacity planning due to cloud computing. As cloud computing has become more widespread, a variety of models and deployment techniques have evolved to satisfy the demands of various users.

You have varying levels of control, flexibility, and management depending on the cloud service and deployment strategy you use. Understanding the distinctions between Infrastructure as a Service, Platform as a Service, and Software as a Service, as well as the many deployment techniques available, will assist you in determining which combination of services is most suited to your requirements.

Infrastructure as a Service (IaaS) is a type of cloud (IaaS)

The basic building blocks of cloud computing are contained in IaaS. It usually gives users access to networking capabilities, computers (virtual or dedicated hardware), and data storage. IaaS allows you to have the most freedom and control over your IT resources. It's quite comparable to existing IT resources that many IT departments and developers already have.

Software as a Service (SaaS) (PaaS)

PaaS relieves you of the burden of managing underlying infrastructure (most commonly hardware and operating systems), allowing you to concentrate on the deployment and maintenance of your apps. This allows you to be more productive since you won't have to deal about resource procurement, capacity planning, software maintenance, patching, or any of the other undifferentiated heavy lifting that comes with running your app.

As a Service (SaaS) (SaaS)

SaaS gives you a fully functional product that is managed and maintained by the service provider. Most of the time, when people talk about SaaS, they're talking about end-user apps (such as web-based email). You don't have to worry about how the service is maintained or how the underlying infrastructure is managed when you use a SaaS product. All you have to do now is consider how you'll put it to use.

Models for Cloud Computing Deployment

Models for Cloud Computing

There are three primary cloud computing models. Each model represents a distinct component of the cloud computing infrastructure.

Cloud

A cloud-based application is completely deployed in the cloud and runs entirely in the cloud. To take use of the benefits of cloud computing, applications in the cloud were either built in the cloud or moved from an existing infrastructure. Cloud-based apps can be built on low-level infrastructure components or on higher-level services that abstract away from fundamental infrastructure management, architecting, and scaling needs.

Hybrid

A hybrid deployment is a method of connecting infrastructure and applications across cloud-based resources and non-cloud-based resources. The most frequent hybrid deployment approach is to combine cloud and on-premises infrastructure to extend and develop an organization's infrastructure while linking cloud services to internal systems.

On-premises

The term "private cloud" refers to the deployment of resources on-premises utilising virtualization and resource management technologies. Although on-premises deployment may not offer many of the advantages of cloud computing, it is often preferred since it can give dedicated resources. In most situations, this deployment strategy is similar to traditional IT infrastructure, with the addition of application management and virtualization technologies to improve resource usage.

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