Cloud Computing

Cloud computing has become the ideal way to deliver enterprise applications and the preferred solution for companies extending their infrastructure or launching new innovations.Cloud computing has become the ideal way to deliver enterprise applications—and the preferred solution for companies extending their infrastructure or launching new innovations.Cloud computing is an abstraction of compute, storage, and network infrastructure assembled as a platform on which applications and systems can be deployed quickly and scaled on the fly. Crucial to cloud computing is self-service:Users can simply fill in a web form and get up and running.The vast majority of cloud customers consume public cloud computing services over the internet, which are hosted in large, remote data centers maintained by cloud providers.

The most common type of cloud computing, SaaS (software as service), delivers pre built applications to the browsers of customers who pay per seat or by usage, exemplified by such popular apps as Salesforce, Google Docs, or Microsoft Teams. Next in line is IaaS (infrastructure as a service), which offers vast, virtualized compute, storage, and network infrastructure upon which customers build their own applications, often with the aid of providers' API-accessible services. When we say "cloud" casually, we usually mean the big IaaS providers.AWS (Amazon Web Services), Google Cloud, or Microsoft Azure. All three have become huge ecosystems of services that go well beyond infrastructure.Developer tools, serverless computing, machine learning services and APIs, data warehouses, and thousands of other services. Agility is a key benefit of both SaaS and IaaS. Customers can get new capabilities almost instantly without capital investment in hardware or software. And you can instantly scale up or down the cloud resources you consume as needed.

SaaS (software as a service).

This type of cloud computing typically uses a browser-based user interface to deliver applications over the Internet. Today, the majority of software companies deliver their products via SaaS.The most popular enterprise SaaS applications are Google's G Suite and Microsoft's Office 365. Most enterprise applications, including Oracle's and SAP's massive ERP suites, are available in both SaaS and on-premises versions. SaaS applications typically offer extensive configuration options and a development environment where customers can code their own modifications and additions. It also enables data integration with on-premises applications.

IaaS (Infrastructure as a Service).

Essentially, IaaS cloud providers offer virtualized compute, storage, and networking capabilities over the Internet on a pay-as-you-go basis. Think of it as a data center managed remotely by someone else. However, it does have a software layer that automates the ability to virtualize all these resources and allocate them with little effort by the customer.But that's just the basics. The full range of services offered by major public IaaS providers can be overwhelming.Highly scalable databases, virtual private networks, big data analytics, developer tools, machine learning, application monitoring, and more. Amazon Web Services was his first IaaS provider and remains the leader, followed by Microsoft Azure, Google Cloud Platform, Alibaba Cloud and IBM Cloud.

PaaS definition (Platform as a Service).

PaaS provides a set of services and workflows specifically targeted at developers who can use shared tools, processes, and APIs to accelerate application development, testing, and deployment. Salesforce's Heroku and Salesforce Platform (formerly Force.com) are popular public cloud PaaS services. Red Hat's Cloud Foundry and OpenShift can be deployed on-premises or accessed from major public clouds. For businesses, PaaS gives developers direct access to resources, follows specific processes, allows only a specific set of services to be used, and allows operators to maintain the underlying infrastructure.