Add Yahoo as a preferred source to see more of our stories on Google. pedrosala / iStock / Getty Images Computer hardware refers to the physical components that make up a computer system. Many ...

Well, a network is a group of computer systems connected to share resources and communicate. It is also a collection of devices and computers linked together via transmission media and communication ...

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.