Networking components by Harshi Jain

Networking components Network components mean the individual elements of the network. To establish wired networking in a group of computers, you require some additional components that are as follows: ➢ Network Card A network card is used to physically attach a computer to a network, so that it can participate in network communication. Ethernet Network Card is the most commonly used network card. (Nowadays, most computers have an inbuilt network card.) Network Card ➢ Networking Cable Modern Ethernet networks use twisted pair cable, containing eight wires. These wires are arranged in a special order, and an RJ-45 connector (similar in design, but bigger than the connector used with telephone wire) is crimped at both the ends of the cable. Networking Cable ➢ Modem A modem is a device or program that enables a computer to transmit data over. It converts the digital signals of a computer into analog signals to enable their transmission via phone lines. The receiving modem further converts the

analog signal into digital signals so that the data can be understood. It comes as a separate part that can be installed on the Peripheral Component Interconnect (PCI) slots found on the mother board. Modem ➢ Hub A network hub is a node that broadcasts data to every computer or Ethernet- based device connected to it.When a computer sends a request in a network, it is first send to the hub by the cable. It then transmits that request to all other computers, which check whether the message belongs to them or not. If not, then the message is dropped. His process is called broadcasting. ➢ Switch A switch works similar to a hub. However, unlike a 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 direct connection the source and destination.

Switch ➢ Router A router is a device that connects two different types of networks with each other, for example, a LAN with WAN. Apart from transmitting the messages on the network from a source computer to the destination computer, a router also provides the beast suitable route to deliver that message. It helps to decrease the time of transmitting the message.