A dematerialized architecture in which computer servers are grouped together in data centres. The Cloud Computingis used in particular for the storage of data from private individuals, professionals or the public sector. Thanks to the flexibility of the cloud, providers can tailor storage and computing power to the needs of users. Cloud Computing can be likened to a relocation of the IT infrastructure.

Nowadays, Cloud Computing is more than just storage, most of a company's workloads nowadays go through the cloud (collaboration tools, telephony in the Cloud, etc.).