Cloud computing is the on-demand delivery of IT resources over the Internet with pay-as-you-go pricing.
Instead of buying, owning, and maintaining physical data centers and servers, you can access technology services, such as computing power, storage, and databases from a remote server.
BENEFITS OF CLOUD COMPUTING
The Cloud gives you mobile access to corporate data via smartphones and devices, which is a great way to ensure that no one is ever left out of the loop. Resources in the cloud can be easily stored, retrieved, recovered, or processed with just a couple of clicks. Users can get access to their works on-the-go, 24/7, via any devices of their choice, in any corner of the world as long as you stay connected to the internet.
The cloud allows you to save substantial capital cost as it does not need any physical hardware investments. Also, you do not need trained personnel to maintain the hardware. The buying and managing of equipment is done by the cloud service provider.
Cloud computing makes data backup, disaster recovery and business continuity easier and less expensive because data can be mirrored at multiple redundant sites on the cloud provider’s network.
TYPES OF CLOUD COMPUTING
There are three main models for cloud computing. These are sometimes called the cloud computing
stack because they build on top of one another. Knowing what they are makes it easier to accomplish your business goals.
Infrastructure as a Service (IaaS)
Infrastructure as a Service contains the basic building blocks for cloud IT and typically provide access to networking features, computers (virtual or on dedicated hardware), and data storage space. Iaas provides you with the highest level of flexibility and management control over your IT resources and is most similar to existing IT resources that many IT departments and developers are familiar with today.
Platform as a Service (PaaS)
Platform as a service removes the need for organizations to manage the underlying infrastructure (usually hardware and operating systems) and allow you to focus on the deployment and management of your applications. This helps you be more efficient as you don’t need to worry about resource procurement, capacity planning, software maintenance, or any of the other undifferentiated heavy lifting involved in running your application.
Software as a Service (SaaS)
Software as a service is a method for delivering software applications over the Internet, on demand and typically on a subscription basis. With SaaS, cloud providers host and manage the software application and underlying infrastructure and handle any maintenance, like software upgrades and security patching. Users connect to the application over the Internet, usually with a web browser on their phone, tablet or PC.
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