Cloud computing is the delivery of computing services—including servers, storage, databases, networking, software, analytics, and intelligence—over the Internet (“the cloud”) to offer faster innovation, flexible resources, and economies of scale. You typically pay only for cloud services you use, helping lower your operating costs, run your infrastructure more efficiently and scale as your business needs change.
There are three main types of cloud computing services:
- Infrastructure as a Service (IaaS): This type of cloud service provides virtualized computing resources over the internet, such as virtual machines, storage, and networking. This allows users to spin up and configure their own servers and other infrastructure on-demand. Examples of IaaS providers include Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform (GCP).
- Platform as a Service (PaaS): This type of cloud service provides a platform for users to develop, run, and manage web applications without the need to maintain the underlying infrastructure. This includes things like web servers, databases, and programming languages. Examples of PaaS providers include Heroku, AWS Elastic Beanstalk, and Azure App Service.
- Software as a Service (SaaS): This type of cloud service provides users with access to software applications over the internet, typically through a web browser. These applications are managed and maintained by a third-party vendor, and users only need to pay for the service they use. Examples of SaaS providers include Salesforce, Google G Suite, and Microsoft Office 365.
Cloud computing allows organizations to access computing resources and services on demand, without the need to invest in and maintain their own infrastructure. This can reduce costs and increase flexibility, scalability, and innovation.
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