Cloud Concepts - Principles of cloud computing

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All the cloud computing services provides 2 basic services,

Compute Power - such as Linux servers or web applications used for computation and processing tasks

Storage - such as files and databases

Networking - such as secure connections between the cloud provider and your company

Analytics - such as visualizing telemetry and performance data

While using cloud techniques you don't have to buy any of the hardware or install the OS. The cloud provider runs your virtual machine on a physical server in one of their datacenters.

VMs aren't the only computing choice - there are two other popular options:

containers - similar to VMs except they don't require a guest operating system. Instead, the application and all its dependencies is packaged into a "container" and then a standard runtime environment is used to execute the app.

serverless computing - lets you run application code without creating, configuring, or maintaining a server. The core idea is that your application is broken into separate functions that run when triggered by some action.E.g. Trigger email when order is placed