What equipment is used for the data center and how is it roughly located?

Question

Computers

I found a lot of material, well, I could not understand how the data center works. My view is limited to a simple scheme (SHD-Switches-Servers and a modem). Give, please, a more precise and clear sequence of this equipment or a diagram-image with a clear description.

Answer 1

If very much approximately - that
external channels -> routers -> switches -> servers.
Inside the data center, dynamic routing can be configured, there will be many routers and a switch, in addition to servers, there can be storage systems, etc.
All equipment is powered by uninterruptible power supplies, etc.
Read articles about data centers, study the purpose of network equipment.

Answer 2

Come on? Seriously? The data center is a complex engineering structure, the topic is not for a toaster, to put it mildly.