Originally Posted by JogaBonito1502
To answer your question, a switch and a router are pretty much the same thing. The whole purpose of a switch is to allocated space for more hardwired computers. A the purpose of a router is to route the connection to other computers via hardwire/wireless. I think your best bet is to connect as much as you can with hardwire...it never goes wrong. You could also experiment...it wouldn't take too long.
A switch and a router are not the same thing at all.
Think of a router as your connection to the outside world. Then think of a switch as what connects everything internally. The purpose of a switch is not to just allocate space for more hardwired computers, if this was the case then hub would still be in use.
A switch can enable communications between nodes that are in the same broadcast domain, while a router separates broadcast domains, allowing communication between two networks (e.g. between a LAN and the Internet).
Here is more if you want to read about it.
* Hub - A hub is the least complicated device in networking. Hub can be considered a Layer 1 ( Physical ) device as its job is to transfer anything that comes in one port is sent out to the others. Therefore, every computer connected to the hub can sniff data to/from every other computer. Hub has no knowledge of data being transferred, its just an electrical signal.
* Switch - A switch works in a same way as Hub but little bit more efficient as it pays attention to the traffic that comes across it. It learns where where particular MAC addresses are. In a way switch works on Layer 2 (Data Link). Benefit of using a switch over a hub is that most of the network traffic only goes where it needs to rather than to every port (aka less packet congestion)
* Router - A router is the smartest and most complicated of the bunch. Router typically works on layer 3 (Network). Router can be programmed (like typical computers) to understand, manipulate, and route the packets. Moreover, these routers work are IP-Address aware as compared to switches which worked on MAC Addresses (easily spoofable)
For the OP, you can use a router in your setup and it will work just fine.
And you should be able to use Wi-Fi as well.