The main problem with Thinwire Ethernet was its linear bus topology, where all the computers on a segment were chained together. If any single connector or cable along the segment had a problem, the entire segment would not function. 10Base-T Ethernet networks are very easy to set up. This flavor of Ethernet relies on hubs. Each computer has a dedicated cable that connects its Ethernet card to a port on the hub.
Ethernet hubs are relatively passive and require little or no configuration.
You will need drop cables to connect your computers to the network. You can also build your own, but it's seldom worth the effort. RJ-45s have eight connectors instead of four. If you are working in a small space, you may be able to connect all the computers in your network directly to the hub without putting new wiring in the walls. But in most cases you will need to have a new cabling system installed in your building to support your network.