What is cloud computing?

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What is cloud computing?

Cloud computing is the on-want  delivery of IT resources over the Internet on a pay-as-you-go basis. Instead of buying, owning, and maintaining physical data centers and servers, you can acquire technical services such as computing power, storage, and databases as needed from cloud providers such as Amazon Web Services (AWS).

 Who is using cloud computing?

Organizations of all types, sizes, and industries are using the cloud for a variety of use cases, such as data backup, disaster recovery, email, virtual desktops, software development and testing, big data analytics, and customer-facing web applications.

For example, healthcare companies are treat the cloud to develop more personalized treatments for patients. Financial services companies are using the cloud to support real-time fraud detection and prevention. Video game makers are using the cloud to deliver online games to millions of players  in the world.

Benefits of Cloud Computing

Agility

The cloud gives you light access to a wide range of technologies so you can innovate faster and build almost anything you can imagine. You can quickly spin up resources on demand—from infrastructure services like compute, storage, and databases to IoT, machine learning, data lakes, analytics, and more.

You can deploy technology services in minutes, going from idea to implementation orders of magnitude faster than before. This gives you the comfort to experiment, test new ideas to differentiate customer experience and transform your business.

Elasticity

With cloud computing, you don’t have to over-provision resources upfront to handle future spikes in business activity. Instead, you provide the amount of resources actually needed. You can scale these resources up or down to instantly increase and decrease capacity as business needs change.

Save costs

The cloud allows you to trade fixed expenses  such as data centers and physical servers  for variable expenses, and pay for IT only as you use it. Plus, due to economies of scale, variable fees are much lower than what you would pay yourself.

Global deployment in minutes

With the cloud, you can extend  to new geographic regions and deploy globally in minutes. For example, AWS’s infrastructure is spread all over the world, so you can deploy applications to multiple physical locations with just a few clicks. Placing applications closer to end users reduces latency and improves their experience.

 Types of Cloud Computing

The 3 main types of cloud computing  annex  infrastructure as a service, platform as a service, and software as a service. Each type of cloud computing offers different levels of control, flexibility and management so that you can choose the right set of services for your needs

Infrastructure as a Service (IaaS)

IaaS comprises the basic buildings blocks of cloud IT. It typically provides access to network functions, computers (virtual or dedicated hardware), and data storage space.

IaaS gives you the utmost  level of flexibility and management control over your IT resources. It most closely resembles existing IT resources familiar to many IT departments and developers.

Platform as a Service (PaaS)

PaaS frees you from managing the underlying infrastructure (typically hardware and operating systems), allowing you to focus on deploying and managing your applications.

This helps you be more efficient because you do not need to worry about resource procurement, capacity planning, software maintenance, patching, or any of the other undifferentiated heavy lifting involved in running applications.

Software as a Service (SaaS)

SaaS gives you a complete product  drive and managed by a service provider. In utmost  cases, people referring to SaaS are referring to end-user applications  such as web-based email. With a SaaS offering, you do not have to think about how to maintain the service or how to manage the underlying infrastructure. You just need to think about how to use that particular software.

Types of Cloud Computing

Cloud computing enables developers and IT departments to focus on what matters most, avoiding undifferentiated tasks such as procurement, maintenance, and capacity planning. As cloud computing has risen in popularity, several different models and deployment strategies have emerged to help meet the specific needs of different users.

Each shape of cloud service and deployment method provides you with different levels of control, flexibility, and management. Understanding the differences between infrastructure-as-a-service, platform-as-a-service, and software-as-a-service, and the deployment strategies available to you, can help you decide which set of services is right for your needs.

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