A virtual server in the cloud
In the context of cloud computing, an instance refers to a virtual server. Cloud providers, like AWS or Google Cloud, allow you to create, configure, and customize instances to suit your computing needs.
An instance works by emulating computer hardware. When you create an instance, you choose the hardware of the host computer where your instance will run. You can select an instance type based on the amount of memory, CPU, and storage that you need for your application.
Consider a web application that experiences varying levels of traffic throughout the day. During peak hours, the application needs more resources to handle the increased load.
An emulation of a computer system that runs on a physical computer and behaves like a separate computer system.
A web service from Amazon Web Services (AWS) that provides resizable compute capacity in the cloud.