Also Read: What are NTP and SNMP network protocols. The 3 main topologies in a computer network are Bus, Ring, and Star Topologies. In a bus topology, all the devices are connected to the main cable.

IBM faced off against the Gang of Nine in the battle of the PC buses during the 1980s and 1990s and Big Blue eventually gave in. It was the best of times, it was the worst of times for IBM, the ...