Can you describe what Amazon S3 is and what it is used for?

Amazon S3 (Simple Storage Service) is an AWS cloud object storage service designed for storing and retrieving any amount of data at any time from anywhere in the world. It is used for backup, storing static website files, logs, multimedia, as well as application data and analytics. S3 provides high availability, scalability, and data security.

Example of use: storing images and videos for a web application to ensure quick and reliable access to them.