How do messages travel through a bus topology?

In a bus topology, messages travel along a single central cable, known as the bus, which connects all devices in the network. When a device wants to send a message, it broadcasts the data onto the bus, and the message travels in both directions along the cable. Each device on the network checks the incoming data and accepts the message if it is addressed to it; otherwise, it ignores it. This method allows for efficient communication, but if the bus cable fails, the entire network can go down.