Drawings and standards for installing a Server-Terminal network or just a peer-to-peer LAN

Question

Network administration

I ask the experts to help.
Friends asked me to draw a network organization in a private house.
There will be a system unit(s) in the attic. From them I will run cables in boxes to KVM in the rooms to which monitors / mice / keyboards will be connected (I can’t imagine how to connect printers and scanners).
I thought to provide troughs in the walls for mounting boxes, but I don’t know what standards to design this for.
Just running a box over drywall is not an option. It will look shameful. The box will go into a hole in the ceiling, and there will be a designer suspended ceiling ... well, in general, horror. It is necessary to build in communications behind the casing, but with the possibility of mounting new wires inside the box.

In general, tell me, please, how to organize this correctly.

Answer 1

a private house or an office in a private house?

Answer 2

And what tasks will be solved by this system? Maybe just a terminal server and thin clients? Then you need only SCS.

Answer 3

It does not say what the organization does.
If accounting, then you can also use thin clients via wi-fi

Answer 4

And what exactly is planned to be left? keyboard/mouse/monitor, that's understandable. I would take a monitor from usb, and already give a printer / scanner to it at the request of the client.
Again - you can plug in a usb flash drive and send photos to social networks.
connection format - a box in the wall, all communications - you need to look at the specifications for the length of the video cord, usb, keyboard / mouse - we have a pack of printers with a usb cord length of more than one and a half meters refuse to work and the printer in each room - bold in finance - simpler one color MFP at the reception, and scanning, in the same place. And the reception sends the scanned material to the client by mail / flash drive / blank.
And in the room there is only a KVM, connected by wires to the ports in the wall, and behind the wall there is an asus mini-pc the size of half a VCR, I forgot what the form factor is called.
the user account has autologin to the system with the rights of only the user and in the tray there is a softinka for ordering, for example, food in the room, from the openofis software, browser, ICQ, skype and gimp some thread.
with the redirection of documents to d:\user\ in the seven, this is conveniently done. after the client leaves the room - re-deploying the OS from the image during the time while the room is being cleaned, up to a maximum of half an hour