CloudBerry Drive maps your cloud storage as a network or external drive to your Windows desktop computer or Windows Server machine.
CloudBerry Drive allows you to work with files in the cloud storage directly from the Windows Explorer interface, the same way as if they were on your local drive.
Amazon S3 is a highly-scalable and durable cloud storage powered by the global AWS infrastructure. Store any amount of personal or business data and retrieve it from anywhere in the Web. The storage is divided by four classes: Simple Storage Service (S3), Standard I/A for infrequently accessed data, Reduced Redundancy Storage (RRS) and Amazon Glacier - an archival storage. The data is organized in containers named "buckets".
Microsoft Azure is a cloud-based service, which provides cloud computing and storage options to developers and personal users. The main storage system is a Blob Storage, where backups, personal and business data could be stored. The data structures as blobs depending on the data type and your needs.
Google Cloud Storage is a modern and highly scalable storage service in the cloud, which suits for application development needs as well as for storing personal data. The storage is represented by three classes: Standard for frequently accessed data, DRA class with reduced availability and low-cost Google Nearline archival storage. As other major providers Google Cloud Storage offers high performnce, durability and availability for disaster recovery, business needs and personal archives.
Openstack is a cloud computing and storage service backed up by an OpenStack operating system. OpenStack Object Storage can be used by its own for storing data or in conjunction with computing platforms. It is one of the best low-cost, scalable, API-accessible storage platforms and can be combined with an existing application or used for backup, archiving and data retention needs.