Why is a server needed for a LAN of more than 10 PCs?

Question

Computer networks

Hello! There is an office of 150 sq. m with 8 employees. Accordingly, a semblance of a network was created through several hubs. There are 8 computers in the network (one of them has a database and a mail client), 3 printers, a Wi-Fi router and a bunch of devices connected over the air. The question arose about recruiting new employees and expanding the network. Tell me, what threatens the connection of new users through another hub? And what solutions can be?

Answer 1

8 computers, 3 printers and a waffle - what for here "several hubs"?
You don't even fill a 16-port switch entirely with your 12 devices. You can take on 24 ports, so that's exactly enough. If things like STP and LACP are not needed, then even a new gigabit piece of iron is very inexpensive.

Answer 2

Accordingly, a semblance of a network was created through several hubs.

several hubs

I still hope the switches.

Tell me, what threatens the connection of new users through another hub?

The fact that you connect two switches with two links and get a loop if STP is not active on the switches.

And what solutions can be?

Do not create loops (consciously or accidentally), use more or less decent equipment (with clear diagnostic capabilities), do not allow users to touch switches, bring their access points (you can get a loop using two access points, for example).

Answer 3

It threatens to increase the collision domain, in the case of hubs. Ways of the decision - to change hubs for a switch.

Answer 4

Required for convenience. 15 machines can already be pushed into the domain.