Objects in GCS
An object is any kind of data that you upload to Google Cloud Storage. For example, an object can be a file, image, video, application, etc. Every object has data, metadata, a unique identifier, etc. For more details like naming conventions etc., you can refer to your cloud storage service provider. (Here it is GCP).
Uploading and Downloading Objects in Google Cloud Storage: Command Line and API
Cloud storage refers to storing your data in remote locations i.e., the cloud. Cloud Storage became increasingly popular in the information era. With tons of data in hand, storing them in the cloud is very affordable. By storing the data in the cloud, we can access the data at any time irrespective of the device and the location.