S3

S3 is object storage — durable, effectively infinite, and accessed over an HTTP API. It is the default place to put blobs in AWS: images, backups, logs, static assets, anything. The core pieces Piece What it is Bucket The top-level container for objects. Its name is globally unique, and it lives in one region. Object A blob plus metadata, addressed by a key. The thing you actually store. Key The object’s “path” — e....