Networking Components

Networking Components To establish wired networking in a group of computers, we require some additional components that are as follows – Network Card: A network card is used to physically attach a computer to the network so that it can communicate using network. The most commonly used network card is Ethernet Network Card. Networking Cable: Modern Ethernet networks use twisted pair cable, which contains eight wires. These eight wires are arranged in a special order, and an RJ-45 connector is crimped at both ends of the cable. The RJ-45 connector is similar in design but bigger than the

connector used with the telephone wire. Hub: A hub is a network device used to connect all the computers in a network with each other. When a computer sends a request in a network, it is sent to the hub by the cable. The hub then transmits that request to all other computers in the network, which check if the message belongs to them or not. If not, the message is dropped. This process is called Broadcasting. Modem: A modem enables us to connect our computer to the available internet connection over the existing telephone lines. It converts the digital signals into analogue signals to enable their

transmission via telephone lines. At the destination, the receiving modem further converts the analogue signals into data signals so that the data can be understood at the receiving end. It comes as a separate part that can be installed on the Peripheral Component Interconnect (PCI) slots found on the mother board. Switch: A switch work familiar to a hub. But, unlike hub, the switch does not broadcast the message on the entire network. It transmits the message from the source computer to the destination computer only by using the physical address. This way, the switch provides a direct connection between the source and the destination. As a result, the speed of

the network increases. Router: A router is a device that connects two types of networks with each other, for example, LAN with WAN. Apart from transmitting the messages on the network from a source computer to the destination computer, a router also provides the best suitable route to deliver that message. It, therefore, increases the speed and decreases the time of delivering the message.