Find and replace "cloud" with "internet" and nothing changes.The cloud in technology refers to:
[1] A global network of remote servers around the globe that operate as a single ecosystem.
[2] Servers accessed over the Internet, along with the software and databases that run on those servers.
[3] Web-connected servers and software that users can access and use over the internet.
[4] Storing and accessing data and programs over the internet instead of your computer's hard drive.
So the cloud refers to a communication system of Routers and Switches + wires +satellite or artificial satellite's that access devices like mentioned in 1 through 4 above principally in Data Centers that are or may be distributed globally ...