What is the name of a network of thousands of computers in different parts of the world, BUT NOT PUBLIC, but belonging to one?

Question

Computer networks

For example, I have a network of 100 dediks. What is it called?
In general, can I have the names of any networks? botnet type, communication network, computer network. What else are there?

Answer 1

There are clusters (several servers of one application working together on calculations, distributing them),
there are CDN networks of servers for the fastest possible delivery of content locally to users.
But in general, for thousands of computers, some kind of generalization is completely inapplicable, since different servers perform different functions and, on the basis of this, they are classified in the network.
PS A botnet is not at all from that opera, it is not a server in the main, but user computers-workstations infected with remote access software are not used for any useful work, since this is obviously illegal.

Answer 2

Maybe intranet?

Answer 3

This is called - a private cloud, as it is now fashionable.