I had a professor talk about those old systems once. Weren't those systems a bus architecture? Like the backplane wires all shared the same wires so it was pos

I had a professor talk about those old systems once. Weren't those systems a bus architecture? Like the backplane wires all shared the same wires so it was possible to keep stringing them along? Modern PCIe, and even USB3, are star networks. Everything directly connects to the northbridge like an Ethernet cable star network connects to a switch. ------- PCIe slots communicate the idea well. There are only so many dedicated wires the northbridge exposes to USB3 or PCIe. This, it makes sense to have those limited wires in the form of PCIe slots or USB3 connectors.