The majority of cloud computing services are classified into four categories: infrastructure as a service (IaaS), platform as a service (PaaS), serverless, and software as a service (SaaS). They’re sometimes referred to as the cloud computing stack since they’re constructed on top of one other. It’s simpler to meet your company’s goals if you know what they are and how they differ.
Infrastructure as a Service (IaaS)
The most fundamental type of cloud computing services. IaaS allows you to rent IT infrastructure—servers and virtual machines (VMs), storage, networks, and operating systems—on a pay-as-you-go basis from a cloud provider.
Platform as a service (PaaS)
Platform as a service refers to cloud computing services that provide an on-demand environment for building, testing, delivering, and supporting software applications. PaaS aims to make it easier for developers to build web or mobile apps quickly without having to worry about setting up or maintaining the underlying infrastructure of servers, storage, networks, and databases.
Software as a service (SaaS)
Software as a service (SaaS) is a technique of distributing software applications via the Internet on demand and often through a subscription. Cloud providers host and maintain the software application and supporting infrastructure, as well as any maintenance, such as software upgrades and security patching, in the case of SaaS. Users access the programme over the Internet, typically via a web browser on their phone, tablet, or PC.
Serverless computing, which overlaps with PaaS, focuses on developing app functionality without having to constantly manage the servers and infrastructure necessary to do it. The setup, capacity planning, and server administration are handled by the cloud provider. Serverless architectures are extremely scalable and event-driven, consuming resources only when a specific function or trigger is triggered.
Uses of cloud computing
Even if you aren’t aware of it, you are most likely utilising cloud computing right now. If you use an online service to send email, edit documents, view movies or TV, listen to music, play games, or save images and other information, cloud computing is most certainly behind the scenes. The first cloud computing services were launched less than a decade ago, yet a wide range of organizations—from small startups to major enterprises, government agencies to non-profits—are now adopting the technology for a number of reasons.
Here are a few instances of what is now feasible with cloud services provided by a cloud provider:
1-Develop cloud-native apps.
Web, mobile, and API apps can be built, deployed, and scaled in record time. Cloud-native technologies and practises include containerization, Kubernetes, microservices architecture, API-driven communication, and DevOps.
2-Application development and testing
Reduce application development costs and time by leveraging cloud infrastructures that can be simply scaled up and down.
3-Data storage, backup, and recovery
Sending your data over the Internet to an offsite cloud storage solution that is available from any place and device protects your data at a cheaper cost and on a greater scale.
In the cloud, unify your data across teams, divisions, and geographies.. Then, using cloud technologies such as machine learning and artificial intelligence, you may unearth insights that will help you make better decisions.
5-Playback audio and video
With high-definition video and audio that is transmitted internationally, you can engage with your audience from anywhere, at any time, and on any device.
Use intelligent models to help engage customers and provide valuable insights from collected data.
7-On-demand software delivery
On-demand software, also known as software as a service (SaaS), allows you to provide the most recent software versions and updates to consumers at any time and from any location.